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HomeMy WebLinkAbout165 - Concrete Pavements Curbs & Sidwalks0 0 RESOT.UT IOY • A RESOLUTION OF THE BOARD Or TRUSTEES ^F THE CITY OF NECtPORT BRAr,H, ADOpTIZG SPECIFICATIONS 140.33, FOR THE COIISTRUCTIOTi ^F C,rr? r1 u • .0 • sand, stone or all other material, of whatever nature it may be, _that may be encountered in preparing the road, and shall also include all trimiiing and shaping required to bring the surface of the road to grade and cross - section. When mud or other soft material is encountered, it shall be taken out and the space filled with good earth., sand or gravel; which, if it is earth or gravel, shall be rolled until the surface of the foundation ceases to creep in front of the roller. The Contractor, however, will not be required in such cases to excavate mud or other soft material to a depth greater than two feet below the sub - grade. All filling shall be done with good sound earth, gravel or sand. Whenever a bankment shall be in depth and each roller neighing n tire, until it is sand, it shall be compacted. fill is to be made of earth or ;ravel, the em- brought up in layers not exceeding six inches layer thoroughly dampened and rolled with a it less than 200 pounds per lineal inch width of firmly compacted. When the fill is made with brought up to grade and thoroughly dampened and No material of a perishable, spongy or otherwise improper nature shall be used in filling. The space over which fills are to be made shall first be cleared of all brush, timber, trash or other debris unfit for foundation. Wring the process of grading, the street shall be maintained in a reasonably good condition for traffic , care being taken to remove the surplus material as evenly as possible over the entire surface of the street. The street shall be plowed up not to exceed one mile in length in advance of the laying of the concrete pavement. The Contractor shall at all times maintain proper drainage on the street. - 2 - t I___ ' C . 4 kA � t • • The width of the street to be graded shall conform to the plans, profiles and cross - sections. After a-section of street has been graded as herein specified, the surface shall be thoroughly drenched with water, and when suf- ficiently dry, shall be rolled with a roller weighing not less than 400 pounds to the lineal inch width of tire until the surface is unyielding. Depressicns wade by rollin- shall be levelled up with good earth and again rolled. Such portions of the street as cannot be reached by the roller, and all places excavated below sub -grade and refilled, and all pipe trenches and other places that cannot be properly compacted by the roller, shall be tamped solid, and in cases of wet weather or soft or muddy-ground, making use of the roller unsafe or impracticable, the rolling shall not be undertaken until the ground has become sufficiently dry. If the sub -grade consists of sand the rolling thcrecf will not be required but it shall be compacted by wetting down thoroughly and smoothed to conform to crovs- sections. The Contractor shall notify the Engineer when a section has been brought to sub - grade, when the latter will check the elevations of'the same, and if the work is found to be in accordance with the specifi- cations and grades given, the Contractor shall proceed as hereinafter mentioned. CONCRETE PAVRAM : Upon the sub -grade of the street prepared as above described and thoroughly dampened, there shall be laid a concrete pavement of the thickness shown upon the plans, profiles and cross - sections and composed of the following material, to -wit: • 1: Portland Cement - one (1) part by measure: - 3 - 2: Sand or Stone Screenings - Two (2) parts by measure: • 3: Gravcl or broken stone - four (4) parts by measure. • Said materials shall conform to the following specifications: A sack of cement m i(;hing ninety -four (94) pounds net shall be con - sidered as having a volume of one cubic foot. CnNCRETF EATERIALS: Including ceruent, sand, stone screenings, gravel, broken stone, and water, and for all purposes shall conform to the follow- ing specifications: MENT : All Cement shall be Portland Cement, and must conform to the following requirements and be subject to the following toots, which will be open to the Contractor and will be wade by the ii,ethuds and under the conditions prescribed in Specifications C -9 - 17 adullted by the American Society for Testing Materials in 1916. (a) Consistency: All cement for set tests, test pats, and neat briquettes will be mixed with sufficient water to reduce the cement to normal consistency, as prescribed by the Specifications of the American Society for Testing Kq terials hereinbeforo referred to. Neat briquettes ­All be compacted by light tamping. 1dortar briquettes shall be mixed to a state of plasticity oorrespvnding as nearly as — 4 — possible to normal consistency in neat briquettes. (b) Fineness: The cereeAt must be evenly grou;id, and when tested vith the following standard sieves, must pass at least the following percentabes by weight: No. 100 Sieve, having 100 meshes, per lineal inch -- 92 percent No. 200 Sieve, having 200 meshes per.lineal inch — 75 percent • (c) Time of Setting: It shall dovclop initial act in not — 4 — s Briquettes one inch square in section, mode of one part of cement, three parts of standard testing sand, shall attain a minimum strength as follows: At 7 days (1 day in moist air and 6 days in watex) - 200 pounds At 28 days (1 day in moist air and 27 days in water) = 275 pounds The sand test must in all cases show an increase in strength at 28 days ever the 7 -day tests. (e) 8oundnese: Pats of neat cement about three inches in diameter, one -half inch thick at the center, and tc.peri:ig to a thin edge, will be kept in moist air for a period of 24 hours. A pat will then be kept in air at normal temperature and ob- served at intcrvais for at least .23 .days. Another pat will, after having been kept 24 hours in «:oist air, be placed in :cater at normal temperature a ::d c�aintaincd for three hours. Theso pats, to satisfactorily pass the requirements, must renain firm and hard, and must not show any signs of distortion checking, cracking, blotching or disintergrating. (f) Protection: All cement stored must be protected from • the :loather and be delivered to the work in the original packaUe • of the manufacturer. No cement shall be used which has been mixed in any Ray with another brand or quality of cement or which has - 5 - less than one hour, nor more, than ten hours. • (d) Tensile Strength: Pleat briquettes one inch square in • section, shall attain a minimum strength as follows: At 24 hours in moist air - 175 pc:unds At 7 days (l .day in moist air and six in water) - 500 pounds At 28 days (1 day in moist air and 27 in eater) 0 600 pounds Briquettes one inch square in section, mode of one part of cement, three parts of standard testing sand, shall attain a minimum strength as follows: At 7 days (1 day in moist air and 6 days in watex) - 200 pounds At 28 days (1 day in moist air and 27 days in water) = 275 pounds The sand test must in all cases show an increase in strength at 28 days ever the 7 -day tests. (e) 8oundnese: Pats of neat cement about three inches in diameter, one -half inch thick at the center, and tc.peri:ig to a thin edge, will be kept in moist air for a period of 24 hours. A pat will then be kept in air at normal temperature and ob- served at intcrvais for at least .23 .days. Another pat will, after having been kept 24 hours in «:oist air, be placed in :cater at normal temperature a ::d c�aintaincd for three hours. Theso pats, to satisfactorily pass the requirements, must renain firm and hard, and must not show any signs of distortion checking, cracking, blotching or disintergrating. (f) Protection: All cement stored must be protected from • the :loather and be delivered to the work in the original packaUe • of the manufacturer. No cement shall be used which has been mixed in any Ray with another brand or quality of cement or which has - 5 - ql IF, been tampered with in any way after being placed in the original • package of the manufacturer, nor shall any cement be used from • packages containing lumpy cement or which has been reground. SAND: e �osheo/�,,,o� All sand must a free rom oil or organic matter and must not ountain more than five percent, by volume, of clay, silt, loam or other foreign substances. No loss than 90 percent, by weight, of the sand shall pass a screen having 4 meshes per lineal inch; at least 50 percent, but not more than 80 percent, by weight, shall be retained on a screen having 30 meshes to the lineal inch. Briquettes one inch square in section, made of one part of cement, conforming to these specifications, and tirce parts of the above sand, shall attain a minimum tensile strength equt.l to that required for standard sand at equal periods of time. Testing sand for silt and clay shall be done in the following manner: One kilogram of dry sand shall be placed in a sixtben inch standard gold pan, covered nearly to the rim with rater, stirred and agitated gently but thoroughly with the hand, and allowed to settle thirty seconds. The water shall then be poured uff uniform- ly in fifteen seconds. This washing process shall be repeated until immediately after stirring, standard six point news print may be easily read through five centimeters of water. The crater shall than be drained off, the sand dried and weighed, and the loss deterr:iined by the difference in weight. Testing sand for organic matter shall be done in the following -' manner: A twelve ounce graduated prescription bottle is filled to the 4 -1/2 ounce mark with the sand to be tested; then there is • poured in the bottle a three percent solution. of Sodium Hydroxide (Caustic Soda) until the volume of sand and solution after shaking, amount to seven ounces. The bottle is then shaken thoroughly and allowed to stand for twelve (12) hours. If at the er.d of this - G - • • time the liquid above the sand is colorless, or a light yellow color, the sand is sufficiently free of orCanic natters to be used in concrete; but if the color of the liquid above the sand is darker than a light yellow color, the sand will not be per- mitted to be used in concrete. STOVE SCREENINGS: Stone Screenings shall be obtained by crushing stone which shall pass all the requirements specified for broken stone and shall.also pass all the screening and briquette tests specified for the sand. GRAVEL: de �yosii'ec�o�� Gravel shall consist of clean water -worn pebbles, crushed boulders, or both. Gravel shall all pass a two and one -half inch screen.. Not less than thirty -five percent nor more than fifty percent, by weight, shall pass a three - quarter inch screen, and not more than five percent by weight, shall pass a quarter inch screen. Gravel when subjected to the rattler test herein- after specified, shall not show a loss of more than thirty -seven percent. BROKEN STONE: Broken stone shall be the run of the crusher and shall all pass a two and one -half inch ring. cent nor more than fifty percent, b quarter inch screen. Not more than pass a one- quarter inch screen. It rattler test hereinafter specified, twenty -two percent. RATTLER TEST: Not less than thirty -five per- weight, shall pass a three - five percent by weight shall shall, when subjected to the shorn a loss of not more than At least thirty pounds of the material to be tested shall be - 7 - Wr SI r1 �a available for the test. Each sample when ready for the-rattler • shall consist of five kilograms (eleven pounds) I of said material, all shall pass a two and one -half inch ecreen, sixty percent by Freight .shall be.retained on a three - quarter inch screen, and all shall be retained on a one -half inch screen. The said sample en tested in a.rattler consisting of a metal cylinder 28 inches in diambtcr, and trenty inches in length, longitudinally mounted on a hori�iontal shaft and having a shelf four inches wide ex- tending from end to end. • • During the test the rattler shall be revolved at a rate of between 28 and 30 revolutions per minute. A charge for the rattler shall consist of the said five kilogram sample and fourteencub- i.cal blocks of cast iron with rounded corners and edges, said blocks measuring about one and one -half inches.in each dimension . and having a weight of five kilograms. After receiving the charge, " the rattler shall be given five hundred revolutione.• The sample shall then be screened and the portion by weight, which will pass a 10 mesh screen, shall be coneidered.and designated as the loss. TATER: Water shall be clean, free from oil, acid, alkali or vegetable matter. The maximum amount of water to be used in a batch, ccm- posed of one sack of Portlund Ccment,two parts of sand or stone screenings and four rarte of gravel or broken stone shs.11 nc,t ex- ceed 70 pounds, which includes mater already in the concrete mater- ials, and in measuring the water, allowance shall be.mude for water contained in said tnateri.als. MORTAR: - Should there not be enough mortar to completely fill the voids in the concrete, the deficiency shall be remedied by rec' cing - 8 - I 0 • • -5 '11, the portion of gravel or broken stone used in the mixti-,re and .. not by adding a greater portion of sand or stone screenings. MEASURIi1G MATERIALS: The sand or stone screenings and the gravel or broken stone shall be measured in wheelbarrows which, when struck with a straight edge resting upon the sides, sht_11 have the capacity necessary to accurately maintain the above proportions. Every wheelbarrow load of material used must be struck with a straight edge as above described. Said material sh«11 be measured loose, without shaking or compacting. Cement in sacks as above specified shall be dumped directly into the mixer. The water necessary for every batch shall be accurately measured with an apparatus which will prevent the use of more water than above specified. No mixer shall be used which is not provided with an accurate water measuring device cr appar- at us. DEPOSITING CONCRETE MATERIALS: Under these specification;, the contractor will not be per- raitted to deposit or store any sand, stone screenings, gravel or broken stone directly on the sub- grade. He may however plank the sub - grade, and deposit or store, the concrete materials there- on, provided that the planks are laid in such a manner so that the entire area to be paved is covered, leaving no joints between planks where the sand from the sub -grade may work up and become mixed with the concrete materials. MIXING CONCRETE: All mixing of concrete for the pavement shall be done in a 1 i t._ • batch ruixer. 0 The mixer skull be charged with cement and sufficient sand . or stone screenings and gravel or broken stone to confurra to the. proportions hereinbefure stated. Sufficient crater, not in excess of the quabtity above specified, shall be added to produce a plaStic or quaking concrete which can be handled without caussng a separation of the coarse aggregate from the mortar.. The mixer drum shall have a speed of not less than 13 revolutions ner -minute, and every butch of concrete shall be mixed in the drum of the mixer not less than sixty (60) seconds before any, portion of the batch is discharged from the said dram. At least 75 seconds must elapse bctveen the placing of successive batched in the mix_ er. . COWSISTENCY OF COWORFTE: The concrete, aftor being mixed as hereinbefore specified, shall, when subjected to the following test, have a slump of not less than eight percent nor more than twenty -five percent. The slump test shall be made in the following manner: The teat tube to be used in making the slump test shell have an inside diameter of. eight inches at the base and an inside diameter of four inches at the top, and a perpendicular height of twelve inches. Immed- iately after the concrete has been mixed and deposited on the .sub- grade, a sufficient quantity thereof shall be placed in four layers in the tapered test tube until the concrete is flush with the top of the tube, each layer shall be thoroughly settled by working with a pointed iron rod. Then the test tube shall be �( lifted, allowing the concrete to settle or slump. After the pi_ile • of concrete has set one minute, its height shall be, measurcud and subtracted from the original height of twelve inches, which diff- - 10 - • • • X • • erence in height is the amount of the slump in inches from which the percentage of slump shall be determined. PLACING CONCRETE: The concrete shall be spread upon a thoroughly dampened sub —grade prepared as above. The concrete shall be tamped and patted until the surface is covered with mortar. Such de- vices and rr,ethods shall then be used as are necessary to bring the surface of the concrete to a true and even grade and to the established cross — sections. FINISHING THE SURFACE nF THE CONOR 'TE PAMILENT. After the surface of the concrete pavement has been struck off to the proper cross — section, it shall be finished by rolling and floating in the following order and manner: The roller shall be made of smooth steel, 12 inches in dia- meter and six feet in length, and of a weight not to exceed one pound per inch length of roller. The roller shall be operated by ropes so designed and used as neither to increase nor decrease the pressure coming upon the concrete from the roller. Immediately after the surface of the concrete pavement has been struck off with a template, it shall be rolled four times. The time interval between rollings to be not less than 20 minutes nor more than 40 minutes. The roller at each rolling shall be operated at such an aAgle with the center line of the pavement that it advances along the pavement two feet for each time across. After the rolling has been completed, the surface of the con- crete pavement shall be finished with a float eight inches in width and of a length two feet greater than the width of the pavement being laad, constructed of wood and surfaced at the bottom and edges. — 11 — P`° A 55 It shall bd sufficiently flexible so the.t it will adapt itself •to tLe cross - section of the pavement to be laid. The said • float shall be operated tranbvorecly. across the paveii.ent, ad- vuncinU longitudinally along; the pavement in such a manner that the crown will. not be worked out of the pavement, so at, to re- sult in a smooth and uniforw surface. After the trai.sverye floating has been comr.leted, the sur- face of the concrete pavement shall be finished with a float sixteen feet in 1onth.and not less than eight inches in width, constructed of wood and surfaced at the bottom and edgcb, and it must be braced. sufficiently that it gill not sprinC out of shape, but maintain at all times a uniform and true surface. There shall be attached to the float, wooden handles at each end, by which the float shall b, operated from brid -ges which shall span the width.of the paverent being laid, excepting that for puver,!e.,ts wider than 28 feet, the pavomo'nt may be laid in trio sections of equal width. The floating shall be commenced at one edge of the ^ avement and-continue across to the opposite edge and be opuruted by using; short longitudinal strokes, combi*ied with a slight transverse r,:o- tion, in such manner that the crown will not be tjorked out of the; Pavement, nor to permit the edges of the float to dig into the surface, so that there will result a smooth, true and uniform cross - section, as well as a true and uniform surface longitudinally. RE- dI%ING OF CONCRETE: �. No concrete shall be used that shows evidence of having set, or that has become unfit for good work from standing too long or • from any other cause, and no remixing of _concrete will be permitted. FINISHfHG F.DGES 0F. PAVE2ENT: The edges of the concrete pavement in ca;,es whcro it does not -12- _4 si • join to a curb, shell be rclunded to a radbue of one inch, after • the floating and rolling has been completed as abovo epecifi.ed. FOM-' S: Forms shall be true and straight, free from warp 4nd of sufficient stre:gth to resist springing out of shape. All mortar and dirt shall be removed from forms that have been previously used. They shall be well staked or otherwise held to the cstabT lished line and trade, and their upper surface shall conform with the finished surface of the concrete pavement. All forms shall be thoroughly -wet before any material is deposited against them. EYPA ISIOH JOINTS: Expansion juin s all be placed at the termination of each day's erork and at all other places nccrc indicated on the plans, profiles and cross - sections, and shall be provided by placing; in position for the full width and depth of the pavement, a previously prepared strip in the form of a built -up board, composed of a body of compressible asphalt compound supported by layers of aephalt saturated 4igh grade woolfult along the exterior vertical faces for the full depth of'the joint. The Expansion Joints shall be of such character as not to become soft and run out in hot 'weather, nor hard or brittle and chip out in cold weather. PROTECTION AND CURING: The surface of the concrete pavement shall be sprayed with water as soon as the concrete is sufficiently hardened to prevent pitting, and shall be kept lvet until an earth or sand covering • can be placed upon the surface of the concrete (the depth of the • earth or sand covering to be not less than one inch) i?hich shall be done as soon as possible without damaging.the cuncrute surface, - 13 - • After t':e covering ;,f earth :,r aand has been placed, dame of earth or sand shall immedir.toly bo built ulonL botl: ed,;ca cf the l:avcmer_t and across the pavur,crt 4t frcquunt intcrvc_ls, • and t ::s ,,avcrLcrt between the dams be covered with t7o incises S1 r depth of mater for a reriud of ton days, after iich thu es_rth da;:.s can be rawuvod. Iio traffic shall be r..11orud on tho Pavcrr(;nt until fourtoo.� days after the curing rbove duscribud has been cumpleted. C0 CRETZ CURB: Concrute curbs eas.11 be constructed slung such ;crti;,n of the work, and of t:,e si c and shape sl oun upon the plaz.s. It shall be placed upon a sub -grade prepared as hercinbefor:: des- cribud under ti(, headizzg of iradini„ and thorou .-lily dampuned. The .body of cot,crotc curbs onall consist cf cuncrctu cut -roeod of the fo11ovin6 i-�aturi;..ls, oiid said r,aterisls shrill conform tc thu requireruo,;ts au l.urei. :uk�f4re specified, to- +:fit: 1: Portland Odiitvt:t - one cart by taeasure: 2: Sand or Stone Scrueni zL;s - tivo ,arts by ,. :uasuru: 3: Bruvai or irokes Sto c -four parts b;r t,.easure: Tina propertivnin . anal mixing of ti.e cuncrute s;,2.11 bu dunu as horeinbufure srucifiud. (a) rorme: Plr,n] s used for forms shall bu :,i a width ec,ual to t;:u depth of th.; curb and shall be t+. u inches in tlickr_e;,;;. 7arpud rILLIc and plank not Lavin a Smoot :; strai. ,t a . ur ed--c shz.l! not bo used. Tire curb planks shall be rigidly 1.eld in place by the use of not leas than fiuc pairs ,,f iron utakus to Bach up foot ecction of curb. 1.11 curb forma rust bc; cc.rutully sat to pruuk ;r uligzu;_u.st and -rade. Curb fours L.Lal1 not bu romovud from - 14 - the concrete in lobo than one hour after the concrete has • boon tampod into place, and the back form sht_ll not bo ruruved u • until the face cf the curb has been plastered. (b) Plastering and Finishing: The top of the curb stall bu plastered with a 1/2 inch coat of cer,ent si:ortar, as soon �:s the concrete has been thoroughly tamped, ti:c back arid face i,f the curb shall receive 1/4 inch coat of cer.:ent mortar as soon L.s t'ie forms are removed, the back tc a depth of four inchea from the top of the curb arid the front to a depth of 15 inci.as frorn the top of tile; curb, unless otherwise shoT7n uion tho plums. Thu cement mortar shall consist of one sack of Purtland Cement to one t:nd x one —half cubic Poet of =wAaw cared previously scruaned t;, rcmuve all Particles retained on a 1/4 inch screen. The nortar shedv be nixed in a concrutc mixer in the r:anner specified for concrete." The niurtar iauat bo uuod imi,.ediatoly after mining acid no rutun.pur- ing :rill be permitted. The- rh.stcred surfLcus of the curb sl.r.11 bo vcll floated and troweled into the body of the curb before the cuncruto has s t. It shall be smoothly polished and mar " -ed rith joints at ri,;ht angles to the curb grade;, into blocks cf uniftrrn lungth, not less tiuun tlrr:;u nor more than four feet. (c) Curia- ,: Tile,, back and top of the curb shall be covered pith eerth or sand'witirin twelve hours after complution, ;;..rice z5h;aIl rur,ain covered and shi.li bu kept fret for turn days. OnHOPETE SIAFTAI$: Concrete sidewalks shall be constructed c;lonL such portion of the wurk, and of the si e end shape &hown upon tire: plans, it • shall b:: ph.cod upon a sub —grade prepared as heruiribeforo duelcri lutzd —15 —. 6 0 0 • • under the heading of grudi;.g and thoroughly dampened. T:.e base of the concrete 6iderralk shall consist of cc.ncrute ceidpoGed of the following materials and said materials shall conform to the recluirwaents as hereinbcfc:ru specified,. to —vit: 1: Portland Ccl:r;;.t — one part by meusuru: 2: Sand or £tone scruuni, .s — tho p rIcs by measure: 3: Cr4VC1 or Brokun Stone — four parts by me«suro: T;lu proportionin; and mixi-ng of t;:e concrete ehGll bu done us hureinbeforu specified. EIuE_dSI�i ?S: Concrute sidewalks shall be cor_structud of G cew.ci,t coi;crLte body, vihich shall 'oe thruc; (3) inchuu in thicki:ues aftur buiuL thorcntrhly coigpv.ctu(i, E,nd a cei:ont morti:.r finishing cuz.t v,hich shall to unu —half (1/2) inch in thicknubt,, ui11c66 uthcn.isu Liloc:n on tik' ab�)Ve hie- lltio;lud drawings and profiles. FORLS: Forms shall bu true and atrciLht, free frol, n,t�tp, mould 6f sufficient str;;n�.th to rosist sprin„inL out of shape. All mortar srr_d dirt shall be rLimovud from furors that havo •uoen prLvicuuly u 6(;;d. ^1 Lv forms shall bo vtell staked or othereri6u meld to tl:,; uetcb- lished line and grade, and their upper surface Fha.11 cui.lur. ^.ith the !'inie:led surface of t;io concrete sidovalk. All forms shall be thorou• hly wet bt 1fcru any is du- posited ugainet them. Strips used t.6 forms 6,t the: sides of t:--o !7. 1,lk f h .11 bu not i. LE Ulan trn--, (p) inciluc. in iiidth nor less than three L,nd one -h;11 (b 1 /(,) inc:ies in djl;th. - 16 r� • The surfzxu of tl.E; sidu�7alks shall be divided ii:tu suc'',.iuns • t *ro and one -half (2 1/2) fuut in length, meaaurud r.lurru t1tc sid�- walL psrallel to the stre,t linos, TLusu suctions to be niarh,:;d Math a jointer, ut least one- qur.rtur inch in depth alon- lirou _ LLt riLht cnLlc;s v-ith the sidewalks. At every twenty feet in langtl; ur ovary of AAh section the a-*-­4 sidee =alk sh411 be completely supr.rt.ted fruit, the adjacent sidewalk, by suu;e L.ethod vhicL Brill insure ccmpletc a;- paration, by a j�iint not less than one - eighth (1/8) nor mere. -than three- sixteenth (3/16) of un inch aide. These joi ::te zi.vbt' uu out straight and -true to a line, and at right un„lcs with ti.o outside edge of t; ,u sid-17alk. FITI.OH OR {l- ;A.I;TC- S7FAU. Pr2 ortions: Cement mortar finishing coat shall bu cumpusud ofi One (1) part of Portland %went,• one and cne -half (1 1/21 - 17 - parts of band or stone scruunin3s. inixinr;: nixing shall be clone in crater -tight ri,urtiir 'bones.. In the process of mixinE. the mortar, the matorials shall be thcrouihly.. mixed by turning at least three times dry. A sufficient quantity of lamp black, ( 1/4 p;,unds pc r sack of cen,unt) shall be riixe;d dry with tiiu, sc.nd. and cezaunt, until the mixture is :,f a unifurui color. It shall then be vct) -With sufficient crater to produco a, consistency which will not rocuire tamping, but which can be easily srruud into., position, turned twice and imi..ediately put in plucu as hcrcinaftur tj described. • Piepositing: rearing surface shall be placed imi :.udiutely. after • mixing and in no case shall inC +ru tiv.n fifty (50) rainut &s elapse between the time tLu eonerute for tip' body if the sidevrt'lh is ruin' Ud- - 17 - L • X • is _ y1 and the time the nearing surface is placed. The surface of the finishing coat shall be well floated and thoroughly and smoothly trovreled into the body of the con - cretu so as to form one con "act mass, free from voids or loose spacus and shall then be smoothly polished, :' . The finished v7elk mist show an even, true surface free from sags, hunp&, pits or other defccte. Then a straight ed3e five (5) feet in length is laid upon the surface at any point, except ut rude changes, the surface shall at no point vary more than ono- quarter of an inch from the true edge of the straight edgo. siole- Thcrcver the, M,lk is laid upon a grade cf five (5) ,)ercent or mere it shall b:; finished ?ith a fluEted surfr.ce. I'llerever t;,; ; .7c lk cunstructQd wider t..usu u ecifics- tiens, does nut cover thu cntiru sidot7Glk &race suclr uncovc:rLd j,urtion- sht.11 be brcu -.ht to gri:.du and loft in a finisiu,d ounditiun. Thu aptdication of :teat cu.-Wiit to tho surfucu in ordey to hautun hardenin ; is prohibited. Contractor's i3 rue Stamp: Thu Cuntructor shall stamp hit, nun.0 on all 17ork done by hiiii, at inturvuls of nut rasa than enu Luiidrud i'cut on continuous cork, and not le&c, than unce on uacli jub of hies than onu hundred feet in length. The letters shall not be smul.lur than three- quarters of an inch in height and of propurtiunal *:idth. They must be sunken and of a depth of nut lees then ono- quarter of an inch. Prot uctiun: Then completed, the eidcrulk shall be rent moist, and be protected from t<.0 sun and thoroughly tv«tured for at lead sure., days, s.ft::r completion and it must bo prutcctud fror,. trefiic f LJ for at least tun days. • yTCRK : • • GFi ?F.'RAL REQUIRF::FINTS The contractor shall, for the price bid, furnish x.11 the materials to execute the work in every respect in a thorouLh (0 -V and workmanlike manner, in accordar_cc with the plane and speci- fications and to the satisfaction of the Street Superintendent. iiATERIALS AND SAAPLFS: All materials must be of spucified quality and fully equal to the samples, when samples are required. The Contractor shall furnisli to the Engineer for test, whenever called for and free of charge:, samples of all materials proposed to be used in the work. P.cjuctud material must be irr ediatuly reTxved from the work by the Contractor. LABOR: Any overseer, superintendent, laborer or other p::rLcn vmplcy- ed by the Contractor on the work, who shell perform vork ii; k msnner contrary to these srucificetions, shall be dischI_rLcd iriu..od- iately and such person shall not again be remployed on thu "Turk. EXAIIINATIn? rF CR(` TD: Bidders must e: amino and judo for thcrisulvcs as to the loca- tion of the propos.;cI work, and thu.naturu of thu uxcavrticn to be made and thu work to be done 4?ETTI.:G STAKES: Thu Coatr-.ctur shall givu 24 hours nu..ticc in +rriting !;i:o.: ile will roquix,3 tiles Ecrv:ccu of t;:e F;nl,inucr fvr lallil:j erlt Llly ':urtion of th.; � ork. - 19 - u He shall di.- all stake holes necessary to give lines and • levels. The Contractor shall prusurve all stakes set fur the • lines, levels or r,easurements of the work in their proper places until authurized to remove them by the Enginer,r, and any expense incurred in replacing said stakes which the Contrr..ctor or his subordinates may have failed to preserve shall by borne by the Contractor. PLANS AHD SPFrIFICATInITS: Thu Contractor shall kcup upon the work a copy of the plans and specifications, and accuse thorcto shall at all times be accorded the En [,ineer or Inspector. INSPECTORS The Contractor shall prosecute work only in the presence of an Engineer or Inerectur, aprcinted by the Street Superintendent and b:ny work done in the abcer.ce of said FnLineer or Pnspector will be subject to rejection. Tke Ccntrc.ctor shall furaicii tie FnLincer and Inspector reasonable facilities for ubtaining such in- formation as may be necessary to Live their full inforwaticn at all times respecting ti,e pro -rese and manner of tLe work and the cl_ar- actor of the materials. PR':SF.FVATInIT nF cinlNiiF'.TS: TLe Contractor shall not disturb any monuments ur stares fuuiid on the line of improveraunts, until ordurud by the En- ineer, and he shall bear the expense of rusotting any monuments or stakes r^hich may be disturbed without orders. • pE;.nVI TG nDSTPUrTI� S: • TIw .Contractor shall rcnz vu all trees, stones, debris and oti.er - 20 - L� • ubetructione that may be encountered in mr:kinG said imnroverients w- • OBS RVI ?C _CITY r)RDI.?A:iQIS: The Contractor shall observe all the ordinances of the City of Rowport Duach in relation to the obstrLction of streets; °yeep- ing upon passaGewaye and protecting the same here they are ex- posad or dan;,ercus t:. tr&vel. i DARTIFFS, IICI_TS, FT(I.: Tl:e Contractor shall take all necessary r„easures to protect the r7ork and rrevent accidents during construction. He shall maintain and rrovide all necessary barriers, wards, temrurary bridges, watcluiien and lights. PU)MIC L 141TIFS: In caso.it should bu ueceesary to mmovc the rruperty cf any ormor of a public utility or franchiee, such n-rner rill, upon proper application by the Contractor, be notified by the Street Superin- tsndent, to move such nropurty within a specified reasonable t ii«e, and the Contractor she.11 not interfere with said property until after the o.cpirutiun of tho time specified. The right is reserved to the owners of public utilities and franchises to enter upon the street for the purpose of making reprirs or changes of their property that may bo made necessary by the vor::. The City shall also have tliu privilego of entorin; upon the street for the purrose of rspairinG culverts or storm drains. LOSS I)R DA:.,AGL: All loss or &inaLc arising from any unforecon obstruction (.r difficulties, either natural or artificial, which ne:y be uncountered - 21 - DETECTIVE T''nP.X: Ho work which may be defective in its construction ur deficiLi,t in any of the requireiseuts of these "crecificat i;,nb -:ill be cui,E,idL:L- ed as accepted in cunsequQnce of the ft.ilure of any officer of tLe City or Inspector connected -ith the Work, to roint out uc.ic: defect ur deficiency during construction, and the Contractor b:,E.11 cuirrect any ihiporfect i7ork, ir.,vnuvcr discovered, before the final acceptance Of tho work. PROTECTION OF l:!MY ADD CLEA:rI-C UP: Tire Contrc.ctcr shall care for all work until final completion and acceptance. Hu shall remove all surplts material and rubbish from the work aftor its completion and bcfure he n.a._c apnlicaticn for the acceptance of the work. FINAL INSPECTION: The. Contractor shall notify the Street Superintendent when he i desires a final inspection of the suork,vrhen the latter will, as soon as possible, make the necessary examination, and if the work is found in cdmpliance with these specifications, the street superinten- dent will furnish the Contractor with a certificate to thEt effect. ALLOTABLF. VARIATION: • Then in these specifications a maximum or minimup, either in size, percentage or thickness, or relatin to quality or character -aa - I in the prosocutiun ;;f the rork, or from any action cf the elen.er:ts, • or from any act ;r omission not authuri"ed by these specificationf;, on the part of the Contractor, or any aLcnt or person ;.r,�rlcydd by hire, shell be sustained by tiro Contractur. DETECTIVE T''nP.X: Ho work which may be defective in its construction ur deficiLi,t in any of the requireiseuts of these "crecificat i;,nb -:ill be cui,E,idL:L- ed as accepted in cunsequQnce of the ft.ilure of any officer of tLe City or Inspector connected -ith the Work, to roint out uc.ic: defect ur deficiency during construction, and the Contractor b:,E.11 cuirrect any ihiporfect i7ork, ir.,vnuvcr discovered, before the final acceptance Of tho work. PROTECTION OF l:!MY ADD CLEA:rI-C UP: Tire Contrc.ctcr shall care for all work until final completion and acceptance. Hu shall remove all surplts material and rubbish from the work aftor its completion and bcfure he n.a._c apnlicaticn for the acceptance of the work. FINAL INSPECTION: The. Contractor shall notify the Street Superintendent when he i desires a final inspection of the suork,vrhen the latter will, as soon as possible, make the necessary examination, and if the work is found in cdmpliance with these specifications, the street superinten- dent will furnish the Contractor with a certificate to thEt effect. ALLOTABLF. VARIATION: • Then in these specifications a maximum or minimup, either in size, percentage or thickness, or relatin to quality or character -aa - i IN- 9 • GU or other matter, is allowed or rrescribed, the work shall be accepted as in compliance therewith, if'mithin such maxi=m or minimum so allowed hereby. DI FINITMIS: Whenever the wurd "City" is used in these upecificuti_ns it refers to the City of ificwport Beach, California. Thenever the r:ord "Contractor" io used in these specificaticne, it refers to the party or parties of t',-.e cecond part in the. FLree- n.ert for the cunstructiong of ti-e work heroin spocifiod. ?".hcnevur tug: words "Suncrintendent" or "Fn-incur" are used in these spucific<:tions, they refer respectively to the "Street Supur- irate ?:dent" or "City F.n� ineer" of the City of iiei7port Beach, ur their authorized agente ar inspections. TLu City Clerk shall certify to the pussL.;a of thie Resolution and shall cause tha 6«,:.c to b;, entered in the Book of Resulutions and .a Minute of the rassr.,;e thereof in the Record of ti:e Buurd of Trubteas :;f the meetin; at ,hich it was passed. Passed and. aprroved this_3_W_day of , 1922. USteeG. ATTEST:. City Clerk. STATE nF CALM)PITIA ) County of OranUe, ( SS. CITY rIF 177PMT AFACH I, City clerk, of the City of r?.e: ^port Bosch, do hereby certify that the foregoing Resolution, being Resolution Yo. — 23 l • • 0 • was aic?pted by tLe Board of Trustees of said Cit , siL;ned by the President of euid Board, and attested by t;:e City Clerk, all at an / adjoppurned regular raceting thereof, held on the 3 _ day cf_1/� ,922, and that the sane was adopted by t;_c fell rin vvt , to -lit: i;CFS: TRUSTFTS - ADMIT : TRUSTFP - City 7.1. erk cf tha -riionrc.rt Reach. - 24 - _k • • STATE OF CALIFORNIA ) COUNTY OF ORANGE ) CITY OF NEWPORT BEACH ) SS I, MARGERY SCHROUDER, City Clerk of the City of Newport Beach, California, do hereby certify that according to the records of the City of Newport Beach filed and inaintained in my office, the foregoing Resinlution No. 165 was duly and Board ofTrustees of regularly adopted, passed, and approved by the eke iK=jt the City of Newport Beach, California, at a regular meeting of Board said held at the regular meeting place thereof, on the 3d day of April 9 19229 by the following vote, to wit: TRUSTEES AYES, Greeley, Schnitker, Wilson, Richter, Burke NOES, (f''L &,: None Dated this 22d day of December J 'i 7 • 19 5 $• !N City Clerk anq Ex- Officio Clerk of t e City Council, City of Newport Beach, State of California.