ÿWPCk  §¹,㔆pÔëÕªè|a%žÛä;Ÿ-Ö‹yØZ!$ØÖ¢t㔆0‹ýÈ3âûÆÌ{H9´ÒæŶ{¯ª[/íc¶_ßiGí0CiäôL ¯¯xèà¤,ï{è¶`ŸlFh¹4?„æ§äÍ8­õÈšÂejëLÜ!ç]½Å›f™¶þþ›œÔƧakUºÎÙZ«‚ä„òÙI“é–ÙPIu`y‹68ÉÑ ³µ ×ï˜uç£yHý8“39Ÿq÷ŽØM„E -¶~¯ž³ÿ–çEñÏ4qž®*†i‚OÔ¤ W>´¿z<Ýšl®ý×uê"¶ôiÑï2Ã2Áf oòª ž¢Ÿ^qôÌ`„ƒ„ãœpGD9ú|‚%i,LBT×OÝÅBÕú$‡ ¶ œ´c%3îh¦çÍ ¸0P|K|àvÔ©:J—Ønº® NGgB0ǪƒÇ±lÕWèwìƵ]±ÝóvžÎbqÞ$ÓWÆ ¥Žù!>‡º·ÞôêÖùGGí¯[#êÃWKÁ%Ó½?ÔXÎ~ RÛÏäi®í[qŽ-büêœÖi•HÄ‘„f˜=øµÉëŒç.gß\&oŒE„.œô B÷ݺüÕXRïaØ:ï#X'þ¹W;'Ÿ=¢7bÜ)©+’¥UL& %r}x 0Åõ~º 0Å8U6ý3nXC 0ª› #!E Nf U>h U6¦ Ü ^ ò w@þ 4> R mT <pðø™`(4Line Draw 12cpiFull-PEô sÝ ƒ…ˆ*ÝÓ  ÓÓN:ÿÿX €` @ àÀ €`@ àÀ!°œXNÓÝ  ÝÔ_ÔÔ€ôþÑõXôÔà€¼¼G(#àSTRUCTURAL€CONCRETEˆÐ ° ÐProject€Name€(Ô_ÔftrÔ_Ô€B)à€Ð Ð T(#à[9/99]ˆÐ xÈ Ðà@***ìà03310€„€Ú  Ú3Ú  Ú(2…ˆ$©©Ý ƒ Íô!ÝÓ  ÓÓN:ÿÿX €` @ àÀ €`@ àÀ!°œXNÓÑ  ÑÑ°°ÑÑ°°ÑÝ  Ý tÝ ƒ…ˆ*ÝÓ  ÓÓN:ÿÿX €` @ àÀ €`@ àÀ!°œXNÓÝ  ÝÔ_ÔÔ€ôþÑõXôÔà€¼¼G(#àSTRUCTURAL€CONCRETEˆÐ ° ÐProject€Name€(Ô_ÔftrÔ_Ô€B)à€l l S(#à[12/99]ˆÐ xÈ Ðà@**øìà03310€„€Ú  Ú3Ú  Ú(2…ˆ$ªªÝ ƒ Íô!ÝÓ  ÓÓN:ÿÿX €` @ àÀ €`@ àÀ!°œXNÓÑ  ÑÑ°°ÑÑ°°ÑÝ  Ý<Ð 9(CourierBold|d «<pðø™`(4Line Draw 12cpiFull-PEôÂdpðø@h'ô@<Ð 9(CourierBoldFull-PEô¡dÐ `É“7ûô€(‚Íô$¡¡Ó  ÓÓN:ÿÿX €` @ àÀ €`@ àÀ!°œXNÓÑ  ÑÑ°°ÑÑ°°ј\\DEN-BLM\HP4-BLM,ü,,,,,ü0<ñ9Z+&Courier Regular<Ð 9(CourierBold Ñ e Ñ̹”'á DDU£UUDðJq' ÿU‹ÿÀÀÀÝ ƒ Íô!ÝÓ  ÓÓN:ÿÿX €` @ àÀ €`@ àÀ!°œXNÓÑ  ÑÑ°°ÑÑ°°ÑÝ  ÝÔ_ÔÓ$ ° ’àÿÿX à$ÓÔ€ ôÃÎõXôÔà@66*ìà*€*€*€*€*€*€*€*€*€*ˆÐ ° ÐÌà@  ìàREAD€AND€ò òREMOVE€THIS€PAGEó ó€BEFORE€PLACINGˆÐ @ Ðà@ê ê ìàTHE€SPECIFICATION€SECTION€IN€THE€CONTRACTˆÌÌà@66*ìà*€*€*€*€*€*€*€*€*€*ˆÌÌà@ÒÒ)ìàòòDIVISION€3:€€CONCRETEóóˆÐ ( x ÐÌà@  "ìàSECTION€03310€-€STRUCTURAL€CONCRETEˆÌÌUSE:à0 € àFurnishing€and€placing€concrete,€reinforcing€steel,€and€framework€forÐ H ˜  Ðconstruction€projects.€€It€is€limited€to€grades€40€or€60€reinforcingÏbars,€and€type€A€or€B€concrete,€27€600€Ô_ÔkPaÔ_Ô€or€20€700€Ô_ÔkPaÔ_Ô€respectivelyÏ(4,000€psi€or€3,000€psi€respectively).€€This€section€is€a€completeÏconcrete€section€in€itself€and€is€not€intended€to€be€used€with€otherÏ"Concrete"€sections.€Ð €(#€(# ÐÌò òNOTES€TO€SPECIFIER:Ð À ÐÌà0   àó óA.à0€ (# (#àOptions€within€paragraphs€are€identified€by€enclosure€in€brackets;Ð P  Ðblank€spaces€enclosed€by€brackets€[òò€€€€€€óó]€provide€for€information€toÐ h Ðbe€inserted,€as€appropriate€to€individual€projects.Ð €(#€(# ÐÌà0   àB.à0€ (# (#àò òTO€AVOID€CONFLICTING€REQUIREMENTS€AND€COSTLY€MISTAKES,ó ó€the€Ô_ÔspecifierÔ_ÔÐ pÀ Ðmust€edit€(delete,€substitute€or€add€to€the€text).€€The€remainingÏparagraphs€must€be€renumbered.Ð €(#€(# ÐÌà0   àC.à0€ (# (#àDELETE€FOR€FINAL€COPY:€Notes€to€the€Specifier,€located€between€linesÐ à Ðof€asterisks;€all€[brackets],€òòunderliningóó,€ò òboldface,€ó óand€òòitalicsóóÐ X¨ Ðwithin€the€paragraphs;€and€this€page.€€(Open€Reveal€Codes€[alt€F3]€toÏdo€this€accurately).Ð €(#€(# ÐÌà0   àD.à0€ (# (#àòòTo€Edit€ð ð(Footer€B)ðð:óó€(Corel€8).€€ò òENTIRE€FOOTER€SHOULD€BE€BOLDED.€Ð xÈ! Ðó óClick€in€the€footer€and€delete€the€ð ðProject€Name€(Ô_ÔftrÔ_Ô€B)ðð€text€andÐ @" Ðreplace€it€with€the€ò òName€Of€The€Project€(upper/lower€case).ó ó€€ReplaceÐ  X# Ðdate€with€current€MM/YY€(WITHOUT€BRACKETS).€Ð €(#€(# ÐÌà0   àE.à0€ (# (#àThe€Guide€Specifications€are€intended€to€be€continuously€reviewed€andÐ `"°& Ðrevised.€€Userððs€technical€comments€are€appreciated.€€Also,€otherÏrelated€or€similar€specifications€that€are€written€ð ðfrom€scratchðð€thatÏcould€benefit€others,€or€other€questions€can€be€sent€to€NARSC€A/EÏGroup,€RS„110€or€call€(303)€987„6851.Ð €(#€(# ÐÌÐ  '`", Ðà0   àF.à0€ (# (#àDESIGN€NOTES:а€(#€(# ÐÌà0   àà0€ (# (#à1.à0` €(#€(#àò òDRAWING€DATA€REQUIRED:Ð@` (#` (# ÐÌà0   àà0€ (# (#àà0` €(#€(#àó óA.ñˆññ†ñ.ñ†ññˆññ‰ñà0@ ` (#` (#àñ‰ññ‡ññƒñà0@ ` (#` (#àñƒññ‡ñIndicñ„ññƒñsñƒññ„ññ…ñate€Ô_ÔrebarÔ_Ô€size,€placement,€and€spacing€within€theÐ Ð  Ðconcrete€on€the€drawings.Ð @ (#@ (# ÐÌà0   àà0€ (# (#àà0` €(#€(#àB.à0@ ` (#` (#àñ…ññ„ññƒñañƒññƒñtñƒññƒñeñƒññƒñ€ñƒññ„ññ‹ññŠñindicate€ñŠññ‹ññŒñIndicate€concrete€outlines€and€dimensions€on€the€drawings.ñŒññ‹ññŠñcñŠññ‹ñÐ( x@ (#@ (# ÐÌÌÌò òREVISIONS€OF€THIS€SECTION:Ð H ˜  Ðó óÔ_ÔCSIÔ_Ô€format,€editorial€changes€9/99Ð `  ÐMetric:€10/99ÌTechnical€Update:€ññ12/99ññÌÌÌÌÌÌÐ  P  Ðñ§ñÖ€ÿÿÖñ§ññ§ñÖ€ÿÿÖñ§ñØØñ«ñÑ€ïOÑñ«ñà@bb-ìàSECTION€03310ˆÌÌà@66*ìàSTRUCTURAL€CONCRETEˆÌÌòòPART€1:€€GENERALóóÐ Ð  ÐÌ1.1à0 € àSUMMARYÐ` °€(#€(# ÐÌà0   àA.à0€ (# (#àSection€Includes:€€Furnishing€and€placing€cast„in„place€concrete,Ð ð @ Ðincluding€reinforcing€steel,€Ô_ÔformworkÔ_Ô,€[Ô_ÔwaterstopsÔ_Ô,]€[and]€[gravelÏsubbase].€Ð €(#€(# ÐÌà0   àB.à0€ (# (#àRelated€Sections:Ð` €(#€(# ÐÌ**************************************************ÌLIST€ITEMS€OF€WORK€THAT€MIGHT€LOGICALLY€BE€FURNISHED€AND€INSTALLED€UNDER€THISÏSECTION,€BUT€INSTEAD€ARE€SPECIFIED€IN€ANOTHER€SECTION.€€THIS€ARTICLE€IS€RARELYÏREQUIRED.Ì**************************************************ÌÌ1.2à0 € àSUBMITTALSÐP €(#€(# ÐÌà0   àA.à0€ (# (#àRequirements:€€Submittals€shall€be€according€to€[Section€01009€-Ð à0 ÐGeneral€Information€and€Requirements.]€€[Section€01330€-€SubmittalÏProcedures.]€€[and]€[Section€01331€-€Certificates.]Ð €(#€(# ÐÌà0   àB.à0€ (# (#àManufacturer's€Literature:€€Submit€ñŸñfor€approval€fiveñŸññ ñthreeñ ñ€copies€of€theÐ P Ðmanufacturer's€descriptive€data€for€the€admixtures€to€be€used€on€thisÏproject.€€Include€the€brand€name,€description,€mix€of€concrete,Ï(including€other€admixture),€purpose€for€which€used€and€location€inÏwhich€this€concrete€shall€be€placed.Ð €(#€(# ÐÌà0   àC.à0€ (# (#àShop€Drawings:€€Submit€ñ¡ñfor€approval€fiveñ¡ññ¢ñthreeñ¢ñ€copies€of€shop€drawings€forÐ °  Ðthe€reinforcement€to€be€used€on€this€project.€€Shop€drawings€shallÏshow€the€lengths,€bends,€and€splices.€Ð €(#€(# ÐÌà0   àD.à0€ (# (#àMix€Design:€€Submit€ñ£ñfor€approval€five€ñ£ññ¤ñthree€ñ¤ñcopies€of€the€design€mix€andÐ Ð $ Ðstrength€test€results€for€each€strength,€class€and€type€of€concrete€toÏbe€used€on€this€project€using€material€the€Contractor€proposeñ¥ñsñ¥ññ¦ñdñ¦ñ€to€useÏon€the€project.€€Mix€designs€and€strength€test€results€shall€beÏprepared€by€a€certified€testing€laboratory.Ð €(#€(# ÐÌà0   àE.à0€ (# (#àMill€Test€Reports:€€Submit€three€copies€for€each€shipment€of€PortlandÐ €%Ð * Ðcement€and€reinforcement€to€be€used€on€this€project.Ð €(#€(# ÐÌà0   àF.à0€ (# (#àCertificates€of€Conformance:€€Submit€three€copies€of€the€batchÐ Ø'(#- Ðcertificates€for€each€load€of€ready-mix€delivered€to€the€Ô_ÔjobsiteÔ_Ô,Ïcertifying€that€the€batch€conforms€to€the€requirements€of€thisÏspecification.Ð €(#€(# ÐÐ ø*H&1 ÐÑïOÑâ âÑe°Ñâ âÑ  ÑÔ& è Ô1.4à0 € àQUALITY€ASSURANCEÐe€(#€(# ÐÌà0   àA.à0€ (# (#àCauses€for€Rejection:€€Concrete€may€be€rejected€for,€but€not€limitedÐ õ Ðto,€the€following€reasons:Ð €(#€(# ÐÔ'èeêÔà0   àà0€ (# (#à1.à0` €(#€(#àInadequate€strength€after€28€calendar€days€as€indicated€by€testÐ …  Ðcylinders.€€The€Contractor€shall€be€responsible€for€furtherÏtesting€required€by€the€Government€to€determine€the€strength€ofÏthe€concrete.Ð ` (#` (# Ðà0   àà0€ (# (#à2.à0` €(#€(#àFreezing€within€first€3€calendar€days€of€placement.Ð¥ @` (#` (# Ðà0   àà0€ (# (#à3.à0` €(#€(#àSegregation€of€aggregate€or€over-vibration€resulting€in€excessiveÐ m   Ðwater€in€the€surface€of€the€concrete€or€lack€of€water€in€verticalÏsurfaces.Ð ` (#` (# Ðà0   àà0€ (# (#à4.à0` €(#€(#àHoneycomb€over€25€percent€of€the€surface.ÐÅ ` ` (#` (# Ðà0   àà0€ (# (#à5.à0` €(#€(#àVoids€larger€than€2„inches€(50€mm)€across.Ð( ` (#` (# Ðà0   àà0€ (# (#à6.à0` €(#€(#àExposed€reinforcing€steel.ÐUð ` (#` (# Ðà0   àà0€ (# (#à7.à0` €(#€(#àMisalignment€of€concrete.и ` (#` (# Ðà0   àà0€ (# (#à8.à0` €(#€(#àSubstandard€aggregate€in€the€mix.Ðå€ ` (#` (# Ðà0   àà0€ (# (#à9.à0` €(#€(#àFailure€to€cover€or€seal€concrete€during€initial€7-day€curingÐ ­H  Ðperiod.Ð ` (#` (# Ðà0   àà0€ (# (#à10.à0` €(#€(#àImproper€placement€of€cut„offs,€Ô_ÔblockoutsÔ_Ô,€anchor€bolts,€or€otherÐ =Ø Ðimbedded€items.Ð ` (#` (# Ðà0   àà0€ (# (#à11.à0` €(#€(#àIrregular,€cracked,€crazed,€or€Ô_ÔspalledÔ_Ô€concrete€surfaces.ÐÍh` (#` (# Ðà0   àà0€ (# (#à12.à0` €(#€(#àStained€or€discolored€surfaces.Е0` (#` (# ÐÌÔ  ÔòòPART€2:€€PRODUCTSóóÐ %À ÐÌ2.1à0 € àMATERIALSеP€(#€(# ÐÌ*****************************************************ÌSELECT€TYPE€OF€CEMENT€USED;€INDICATE€LOCATIONS€OF€BOTH€TYPES€ON€DRAWINGS€WHENÏMORE€THAN€ONE€TYPE€IS€USED.€€AVAILABLE€CEMENT€TYPES€ARE:ÌÌà0   àà0€ (# (#àType€Ià0@ €(#€(#àà0 @ (#@ (#ànormalÐe  (# (# Ðà0   àà0€ (# (#àType€IAà0@ €(#€(#àà0 @ (#@ (#ànormal,€air€entrainingÐ-È! (# (# Ðà0   àà0€ (# (#àType€IIà0@ €(#€(#àà0 @ (#@ (#àmoderate€sulfate€resistanceÐõ" (# (# Ðà0   àà0€ (# (#àType€Ô_ÔIIAÔ_Ôà0@ €(#€(#àà0 @ (#@ (#àmoderate€sulfate€resistance,€air„entrainingнX# (# (# Ðà0   àà0€ (# (#àType€IIIà0@ €(#€(#àà0 @ (#@ (#àhigh€early€strengthÐ… $ (# (# Ðà0   àà0€ (# (#àType€Ô_ÔIIIAÔ_Ôà0 €(#€(#àhigh€early€strength,€air€entrainingÐM!è% (# (# Ðà0   àà0€ (# (#àType€IV€à0@ €(#€(#àà0 @ (#@ (#àlow€heat€of€hydrationÐ"°& (# (# Ðà0   àà0€ (# (#àType€Và0@ €(#€(#àà0 @ (#@ (#àhigh€sulfate€resistanceÐÝ"x' (# (# ÐÌ*****************************************************ÌÌà0   àA.à0€ (# (#àCement:€€ASTM€C€150,€Ô_ÔportlandÔ_Ô€cement,€Type€[òòñÍññËñóóñËññÍññÐññÍñóóñÍññÐññÎñ€€ñÎññÓñ€€ñÓññÓññÎñ€ñÎññÓññÎññÌñ€ñÌññÌñ€ñÌññÎññÌñe€ñÌññÎñuñÎññÓññÑñóóòòñÑññÒñ]ñÒññÓññÒñsñÒññÐñóóñÐññÓñ].€€ñÓññÔñThe€use€of€ñÔññÓñe€ofñÓññÕñ€ñÕñcakedÐ ý%˜!+ Ðor€hardened€cement€will€not€be€permitted.Ð €(#€(# ÐÌà0   àB.à0€ (# (#àWater:€€Ô_ÔAASHTOÔ_Ô€T€26.€€Water€shall€be€clean€and€free€from€harmfulÐ U(ð#. Ðamounts€of€acids,€alkalis,€and€organic€materials.€€Potable€water€isÏacceptable€without€testing.Ð €(#€(# ÐÔ_ÔÐ ­*H&1 Ї*************************************************************ÌVERIFY€THAT€LARGEST€AGGREGATE€SIZE€WILL€EASILY€FIT€BETWEEN€REINFORCING€ANDÏALLOW€SMALLER€AGGREGATE€AND€CEMENT€PASTE€TO€CONSOLIDATE€BETWEEN€Ô_ÔREBARÔ_Ô€WITHOUTÏCAUSING€WEDGING.€€IF€THE€STATE€DOT€MIX€IS€READILY€AVAILABLE€AND€WILL€MEET€THEÏREQUIREMENTS,€MODIFY€THE€BELOW€GRADATION€REQUIREMENTS€ACCORDINGLY€TO€REDUCEÏPOSSIBLE€COST€OF€A€SPECIAL€MIX€DESIGN.Ì*************************************************************ÌÌà0   àC.à0€ (# (#àAggregates:Ð¥ @€(#€(# Ðà0   àà0€ (# (#à1.à0` €(#€(#àCourse:€€ASTM€C€33,€hard,€durable,€Ô_ÔuncoatedÔ_Ô€[crushed]€stone€orÐ m   Ðgravel.€Course€aggregate€for€concrete€having€an€exterior€surfaceÏexposed,€except€floor€slabs€shall€meet€the€following€gradation:Ð ` (#` (# Ðà0   àà0€ (# (#àà0` €(#€(#à95€to€100€percent€shall€pass€a€1-1/2€inch€(37.5€mm)€sieve;Ð ` (#` (# Ðà0   àà0€ (# (#àà0` €(#€(#à35€to€79€percent€shall€pass€a€3/4„inch€(19€mm)€sieve;Ð ` (#` (# Ðà0   àà0€ (# (#àà0` €(#€(#à10€to€30€percent€shall€pass€a€3/8„inch€(9.5€mm)€sieve€and€not€overÏ5€percent€shall€pass€a€No.€4€sieve.€€Percentages€are€by€weight.Ð ` (#` (# Ðà0   àà0€ (# (#à2.à0` €(#€(#àFine:€€ASTM€C€33€clean,€hard,€durable,€Ô_ÔuncoatedÔ_Ô€sand€grains,€freeÐ å€  Ðfrom€silt,€loam€and€clay€[with€a€fineness€Ô_ÔmodulusÔ_Ô€of€not€less€thanÏ2.5€nor€more€than€3.0.]€and€shall€meet€the€following€gradation:Ð ` (#` (# Ðà0   àà0€ (# (#àà0` €(#€(#à95€to€100€percent€by€weight€passing€No.€4€sieve;Ð ` (#` (# Ðà0   àà0€ (# (#àà0` €(#€(#à45€to€70€percent€passing€No.€16€sieve;Ð ` (#` (# Ðà0   àà0€ (# (#àà0` €(#€(#à15€to€30€percent€passing€No.€50€sieve;Ð ` (#` (# Ðà0   àà0€ (# (#à€à0` €(#€(#à3€to€€8€percent€passing€No.€100€sieve.Е0` (#` (# Ðà0   àà0€ (# (#à3.à0` €(#€(#àFor€cement€topping€finish,€useòòóó([òò€€€€óó]„inch€([òò€€€€óó]„mm)€minimum€andÐ ]ø Ðòòóó[òò€€€€óó]„inch€([òò€€€€óó]„mm)€òòóómaximum€size€aggregate.Ð%À` (#` (# Ðà0   àà0€ (# (#à4.à0` €(#€(#àThe€maximum€size€aggregate€in€floor€slabs€shall€be€[3/4]inchÐ íˆ Ð([20]€mm).Ð ` (#` (# ÐÌà0   àD.à0€ (# (#àReinforcing€Steel:€€Shall€have€a€yield€point€of€[60]€[40]€KSI€([414]Ð Eà Ð[276]€Ô_ÔMPaÔ_Ô)€ñìñ([60]òòóó€ksi)€ñìñand€shall€be€òòóóASTM€A€615,€grade€[60]ñíñ€[40]ñíñ.Ð ¨€(#€(# ÐÌà0   àE.à0€ (# (#àWelded€Wire€Fabric:€€ASTM€A€185,€electrically€cold-drawn€wire€of€theÐ 8 Ðgauge€and€mesh€size€shown€on€the€drawings.€Ð €(#€(# ÐÌà0   àF.à0€ (# (#àReinforcement€Supports:€€Shall€be€of€the€size€and€type€required.Ðõ"€(#€(# ÐÌà0   àG.à0€ (# (#àIsolation€Joint€Material:€€ASTM€D€994.€€Preformed€filler€strips€shallÐ … $ Ðbe€the€full€width€and€depth€of€slab€or€joint.€€Unless€otherwiseÏindicated,€the€material€shall€be€l/2ñîñ„ñîññïñ€ñïñinch€(13€mm)€thick.€€JointÏSealer:€€ASTM€D€1190.Ð €(#€(# ÐÌà0   àH.à0€ (# (#àAdhesive€for€Sealing€Joints:€€Mastic-type.Ðm$ )€(#€(# ÐÌ*****************************************************ÌCLASS€A€CURING€COMPOUND€IS€WAX€BASEDñðñ.€€ñðññóññðñmñðññóññôñTYPE€I€IS€CLEAR€OR€TRANSLUCENT€WITHOUTÏDYE;€TYPE€1„D€IS€CLEAR€OR€TRANSLUCENT€WITH€FUGITIVE€DYE;€TYPE€2€IS€WHITEÏPIGMENTED.ñôñññññðñ€ñðñññññóññðñ€ñðññðñTñðññòñYPE€ñòññòñIñòññóññõñ€AND€IS€USED€FOR€APPLICATIONS€SUCH€AS€CURB€AND€GUTTER.€€CLASS€B€COMPOUND€IS€RESIN€BASED€AND€IS€USED€FOR€BUILDINGS.ñõñÌ*****************************************************Ìà0   àI.à0€ (# (#àMembrane€Curing€Compound:€€ASTM€C€309,€Type€[1][1D]€Class€[A][B],Ð å)€%0 Ð[chlorinated€rubber-based],€[100€percent€resin-based].€€Ð­*H&1€(#€(# Їà0   àJ.à0€ (# (#àMoist€Curing€Material:€Ðe€(#€(# Ðà0   àà € à1.à0`  (# (#àMats:€€ASTM€C€171.Ð-È` (#` (# Ðà0   àà0€ (# (#à2.à0` €(#€(#àBurlap:€€Ô_ÔAASHTOÔ_Ô€M€182.€Ðõ` (#` (# Ðà0   àà0€ (# (#à3.à0` €(#€(#àSand:€€ASTM€C€144.нX` (#` (# ÐÌà0   àK.à0€ (# (#àImpervious€Sheet€Covering:€€Shall€be€one€of€the€following:€ÐMè€(#€(# Ðà0   àà0€ (# (#à1.à0` €(#€(#àPolyethylene€sheeting€shall€be€4-mil€(0.1€mm)€minimum€thickness,Ð  ° Ðblack.Ð ` (#` (# Ðà0   àà0€ (# (#à2.à0` €(#€(#àPolyethylene-coated€Ô_ÔkraftpaperÔ_Ô.Ð¥ @` (#` (# Ðà0   àà0€ (# (#à3.à0` €(#€(#àWaterproof€paper:€€ASTM€C€171.Ðm  ` (#` (# ÐÌ*****************************************************ÌINDICATE€ON€THE€DRAWINGS€THE€AREAS€REQUIRING€DUST€PREVENTIVE€ADMIXTURES.€ÏINDICATE€THE€TYPE€AND€QUANTITY€OF€ADMIXTURE€REQUIRED.ÌINDICATE€ON€THE€DRAWINGS€THE€AREAS€REQUIRING€SURFACE€HARDENER€OR€SEALERS.€ÏINDICATE€THE€TYPE€OF€HARDENER€REQUIRED.Ì*****************************************************Ìà0   àL.à0€ (# (#àAdmixtures:€€Other€than€specified€herein,€or€by€reference,€admixturesÐ ­H  Ðmay€be€used€only€when€approved€in€writing€by€the€Contracting€Officer.€ÏWhen€used,€comply€with€the€manufacturer's€written€instructions.Ð €(#€(# Ðà0   àà0€ (# (#à1.à0` €(#€(#àAir€content€by€volume:€€Ô_ÔACIÔ_Ô€211.1,€paragraph€6.3.3,€plus€or€minusÐ   Ð1€percent.€€Air€entrainment€additives:€€ASTM€C€260.Ð ` (#` (# Ðà0   àà0€ (# (#à2.à0` €(#€(#àCalcium€chloride€shall€be€used€when€specified€or€approved€by€theÐ •0 ÐContracting€Officer.€€Do€not€use€near€galvanized€materials.Ð ` (#` (# Ðà0   àà0€ (# (#à3.à0` €(#€(#àWater€reducing€or€retarding€chemical€admixtures:€€ASTM€C€494.€Ð %À ÐUsed€only€when€specified€in€the€mix€design€or€approved€by€theÏContracting€Officer.Ð ` (#` (# Ðà0   àà0€ (# (#à4.à0` €(#€(#àÔ_ÔPozzolanicÔ_Ô€or€fly-ash€admixtures:€€ASTM€C€618€and€ASTM€C€311.Ð}` (#` (# Ðà0   àà0€ (# (#à5.à0` €(#€(#àDust€preventative€agents:€Ô_ÔFluorosilicateÔ_Ô€solutions,€2€pounds€(1Ð Eà Ðkg)€)€of€magnesium€Ô_ÔfluorosilicateÔ_Ô€per€1€gallon€(4€liters)€ofÏwater,€or€2€pounds€(1€kg)€of€zinc€Ô_ÔfluorosilicateÔ_Ô„crystalline€saltsÏper€1€gallon€(4€liters)€of€water,€shall€be€used€when€approved€inÏwriting€by€the€Contracting€Officer.Ð ` (#` (# Ðà0   àà0€ (# (#à6.à0` €(#€(#àSurface€hardener:€€Natural€aggregate€or€iron-bearing€dry-shakeÐ -È! Ðmaterial€for€concrete€surface€improving€and€hardening,Ïmanufactured€for€this€purpose,€containing€quartz,€trap-rock,Ïemery,€or€granite,€and€approved€in€writing€by€the€ContractingÏOfficer.Ð ` (#` (# ÐÌ*****************************************************ÌINDICATE€ON€THE€DRAWINGS€THE€AREAS€REQUIRING€VAPOR€BARRIER.€Ì*****************************************************Ìà0   àM.à0€ (# (#àVapor€Barriers:€€Polyethylene€sheeting,€6€mil€(1.5€mm)€thickness.Ð5%Ð *€(#€(# ÐÌà0   àN.à0€ (# (#àControl€Joints:€€Ô_ÔNonstainingÔ_Ô€wood,€plastic,€or€metal€formed€to€beÐ Å&`", Ðremoved€without€Ô_ÔspallingÔ_Ô€concrete.Ð €(#€(# ÐÌà0   àO.à0€ (# (#àÔ_ÔWaterstopsÔ_Ô:€€[ASTM€D€570,€D€624,€D€638,€D€746,€D€747,€D€792,€D€1149,€DÐ )¸$/ Ð1203,€and€D€2240]€[polyvinyl€chloride€(PVC)]€[ASTM€D€2628,€rubber€ofÏthe€type€shown€on€the€drawings].Э*H&1€(#€(# Їà0   àP.à0€ (# (#àEpoxy€Bonding€Material:€€Ô_ÔACIÔ_Ô€503.1€for€hardened€concrete€or€Ô_ÔACIÔ_Ô€503.2Ð e Ðfor€plastic€concrete.Ð €(#€(# ÐÌà0   àQ.à0€ (# (#àForming€Material:нX€(#€(# Ðà0   àà0€ (# (#à1.à0` €(#€(#àÔ_ÔFormworkÔ_Ô€for€exposed€concrete€surfaces€shall€be€plywood,Ð …  Ðmetal-framed€plywood-faced,€or€other€panel„type€materials€toÏprovide€continuous,€straight,€smooth,€as-cast€surfaces.€€FurnishÏÔ_ÔformworkÔ_Ô€in€largest€practicable€lengths€to€minimize€the€number€ofÏjoints.€€Form€material€shall€be€of€sufficient€stiffness€toÏwithstand€pressure€of€newly€placed€concrete€without€bowing€orÏdeflection.€€Plywood€shall€conform€to€the€requirements€of€PS€1.Ð ` (#` (# Ðà0   àà0€ (# (#à2.à0` €(#€(#àConcrete€surfaces€which€will€be€unexposed€in€the€finishedÐ ý ˜  Ðstructure€may€be€formed€with€plywood,€lumber,€metal,€or€otherÏmaterials€acceptable€to€the€Contracting€Officer.€€Provide€lumberÏthat€is€dressed€on€at€least€two€edges€and€one€side€for€tight€fit.Ð ` (#` (# ÐÌà0   àR.à0€ (# (#àAnchor€Bolts€and€Embedded€Steel:€€Section€05120€„€Structural€Steel.Ðå€ €(#€(# ÐÌ2.2à0 € àMIXESÐu€(#€(# ÐÌà0   àA.à0€ (# (#àConcrete€Design€Mix:€€Design€the€mix€to€provide€concrete,€includingÐ   Ðspecified€admixtures€and€cement,€with€the€following€properties€usingÏmaterial€the€Contractor€proposes€to€use€on€the€project:Ð €(#€(# Ðà0   àà0€ (# (#à1.à0` €(#€(#àType€A€Concrete€shall€be€[27€600]€Ô_ÔkPaÔ_Ô€([4,000]€psi),€28-dayÐ ]ø Ðcompressive€strength.€The€water-cement€ratio€shall€not€exceed€€€€Ï5€gallons€(19€liters)€per€sack€of€cement,€inclusive€of€water€inÏthe€aggregate.€€The€proportions€of€aggregate€to€cement€shallÏproduce€concrete€with€a€slump€of€2€to€4€inches€(5€to€10€mm)Ïaccording€to€ASTM€C€143.Ð ` (#` (# Ðà0   à€€€€2.à0`  (# (#àType€B€Concrete€shall€be€[20€700]€Ô_ÔkPaÔ_Ô€([3,000]€psi),€28-dayÐ  ¨ Ðcompressive€strength.€The€water-cement€ratio€shall€not€exceed€€€€Ï6€gallons€(23€liters)€per€sack€of€cement,€inclusive€of€water€inÏthe€aggregate.€€The€proportions€of€aggregate€to€cement€shallÏproduce€concrete€with€a€slump€of€2€to€4€inches€(50€to€100€mm)Ïaccording€to€ASTM€C€143.Ð ` (#` (# Ðà0   àà0€ (# (#à3.à0` €(#€(#àAir€content€shall€be€4€to€6€percent€at€the€point€of€placement€.нX#` (#` (# Ðà0   àà0€ (# (#à4.à0` €(#€(#àReady-mixed€concrete€that€meets€the€above€specifications€will€beÐ … $ Ðpermitted€when€approved€in€writing€by€the€Contracting€Officer.€ÏThe€Contracting€Officer€will€have€access€to€the€mixing€plantÏduring€concrete€mixing€operations.Ð ` (#` (# ÐÌ2.3à0 € àSOURCE€QUALITY€CONTROLÐm$ )€(#€(# Ð*****************************************************ÌDETERMINE€WHETHER€THE€GOVERNMENT€OR€THE€CONTRACTOR€IS€GOING€TO€PERFORM€THEÏREQUIRED€TESTING€AND€EDIT€ACCORDINGLY.€€INDICATE€HOW€MANY€CYLINDER€TESTS€WILLÏBE€REQUIRED€OF€THE€DESIGN€MIX.Ì*****************************************************Ìà0   àA.à0€ (# (#àTesting:€€[The€Government€will€perform€the€required€air€content€tests,Ð )¸$/ Ðcompression€tests€of€3€cylinders€and€slump€tests€to€substantiate€mixÏdesigns.€€Results€will€be€recorded€and€distributed.]€€[The€GovernmentÐ ­*H&1 Ðwill€make€arrangements€for€a€certified,€independent€testing€laboratoryÏto€perform€the€air€content,€compression€tests€of€[3]€cylinders€andÏslump€tests€to€substantiate€mix€designs.€€Results€will€be€recorded€andÏdistributed.]€€[Perform€the€air€content€tests,€compression€tests€ofÏ[3]€cylinders,€and€slump€tests€to€substantiate€mix€designs.]€€[FurnishÏnecessary€equipment,€labor,€and€materials€to€conduct€the€testing.]€Ï[Testing€shall€be€conducted€in€the€presence€of€the€Contracting€OfficerÏwho€shall€be€given€48„hours€notice€before€any€test€is€to€beÏconducted.]€€[Make€arrangements€for€a€certified,€independent€testingÏlaboratory,€according€to€the€requirements€of€Section€01458€„€TestingÏLaboratory€Services,€to€perform€the€air€content€tests,€compressionÏtests€of€[3]€cylinders,€and€slump€tests€to€substantiate€mix€designs.ÏRecord€and€distribute€the€results.]Ð €(#€(# ÐÌÔ  ÔòòPART€3:€€EXECUTIONóóÐ Uð  ÐÌ3.1à0 € àPREPARATIONÐå€ €(#€(# ÐÌà0   àA.à0€ (# (#àClearing€and€Grubbing:€€Section€02111€„€Clearing€and€Grubbing.Ðu€(#€(# ÐÌà0   àB.à0€ (# (#àAggregate€Subbase:€€Shall€be€placed€under€the€slab,€as€shown€on€theÐ   Ðdrawings,€prior€to€erecting€Ô_ÔformworkÔ_Ô,€according€to€Section€02322ñûñ4ñûñ€-ÏExcavationñüñ€andñüññýñ,€Backfillingñýññþñ€Fill€ñþññÿñ,€and€Compacting€fñÿñññfññor€Structures.Ð €(#€(# ÐÌà0   àC.à0€ (# (#àForm€Construction:€€Ô_ÔACIÔ_Ô€347,€Chapters€1€through€4.€€Construct€to€theÐ %À Ðexact€sizes,€shapes,€lines,€and€dimensions€shown,€and€as€required€toÏobtain€accurate€alignment,€location,€grades,ññ€and€ññññ€ññlevel,€and€plumb€work€inÏfinished€structures.€€Provide€required€detail€work,€construction€aids,Ïand€embedded€items.€€Use€selected€materials€to€obtain€requiredÏfinishes.€€Fabricate€forms€for€removal€without€hammering€or€pryingÏagainst€concrete€surfaces.€€Provide€crush€plates€or€wrecking€plates€ifÏstripping€may€damage€cast„concrete€surfaces.€€Provide€Ô_ÔkerfedÔ_Ô„woodÏinserts€for€forming€Ô_ÔkeywaysÔ_Ô,€Ô_ÔregletsÔ_Ô,€and€recesses€to€prevent€swellingÏand€assure€ease€of€removal.€€Form€oil€may€be€applied€to€facilitateÏremoval€of€the€forms.Ð €(#€(# ÐÌà0   àD.à0€ (# (#àForm€Inspection:€€Notify€the€Contracting€Officer€24€hours€in€advanceÐ … $ Ðof€concrete€placement€to€allow€for€inspection€of€the€Ô_ÔformworkÔ_Ô€andÏplacement€of€items€to€be€placed€in€the€concrete.€€Excess€water€shallÏbe€removed€from€the€forms€before€concrete€placement.Ð €(#€(# ÐÌà0   àE.à0€ (# (#àBonding€to€Existing€Material:€€Surfaces€required€to€be€bonded€to€theÐ m$ ) Ðconcrete€shall€be€prepared€for€bonding€adhesive€according€to€theÏmanufacturer's€instructions.Ð €(#€(# ÐÌà0   àF.à0€ (# (#àConstruction€Joints:€€Shall€be€made€with€beveled€Ô_ÔkeywaysÔ_Ô€at€locationsÐ '(#- Ðas€approved€by€the€Contracting€Officer€[or€as€indicated€on€theÏdrawings].€€Reinforcing€steel€shall€be€continuous€through€joints.Ð €(#€(# Ðâ âÐ å)€%0 Ðà0   àG.à0€ (# (#àReinforcing€Steel:€€Shall€be€held€securely€in€position€by€steel€â âwireÐ e Ðor€metal€chairs€during€the€placement€of€concrete.€€Reinforcing€steelÏshall€be€clean€of€dirt,€grease,€and€rust€prior€to€placement€ofÏconcrete.Ð €(#€(# ÐÌà0   àH.à0€ (# (#àÔ_ÔWaterstopsÔ_Ô:€€Shall€be€carefully€placed€and€supported€at€the€locationsÐ Mè Ðshown€on€the€drawings.€€Splices€shall€be€avoided€to€the€maximum€extentÏpossible,€and€splices€shall€be€made€in€accordance€with€theÏmanufacturer's€written€instructions.€€Take€precautions€so€thatÏÔ_ÔwaterstopsÔ_Ô€are€not€displaced€or€damaged€by€construction€operations.€ÏKeep€Ô_ÔwaterstopÔ_Ô€surfaces€free€of€oil,€grease,€dried€mortar,€or€otherÏforeign€matter€while€the€Ô_ÔwaterstopsÔ_Ô€are€being€embedded€in€concrete;Ïportions€of€the€Ô_ÔwaterstopsÔ_Ô€designed€for€embedment€in€concrete€shall€beÏtightly€enclosed€in€dense€concrete.Ð €(#€(# ÐÌà0   àI.à0€ (# (#àVapor€Barrier:€€Shall€be€installed€as€shown€on€the€drawings;€lap€seamsÐ ¸  Ð6„inches€(150€mm).Ð €(#€(# ÐÌà0   àJ.à0€ (# (#àAnchor€Bolts€and€Embedded€Steel:€€Shall€be€placed€with€a€template.Ðu€(#€(# ÐÌà0   àK.à0€ (# (#àConcrete€Mixing:€€Ô_ÔACIÔ_Ô€304.Р€(#€(# Ðà0   àà0€ (# (#à1.à0` €(#€(#àMix€materials€for€concrete€in€a€drum-type€batch€machine€mixer.€Ð Íh ÐFor€mixers€of€1€òòóócubic€ññyard€(ññmeterññ€(yardññ)€or€smaller€capacity,€mixÐ •0 Ðconcrete€for€a€minimum€of€1-1/2€minutes€but€not€more€than€5Ïminutes€after€ingredients€are€in€the€mixer€before€the€batch€isÏreleased.€€For€mixers€with€a€capacity€larger€than€1òòóócubic€ññyardÐ íˆ Ð(ññmeterññ€(yardññ)€increase€the€minimum€mixing€time€by€15€seconds€for€eachÏadditional€òòóócubic€ññyard€(ññmeterññ€(yardññ)€or€portion€thereof.Ð}` (#` (# Ðà0   àà0€ (# (#à2.à0` €(#€(#àññWhen€uññññUññsing€ready-mixed€concrete,€comply€with€the€requirements€ofÐ Eà ÐASTM€C€94€and€as€herein€specified.€€During€hot€weather€or€underÏconditions€contributing€to€rapid€setting€of€concrete,€a€shorterÏmixing€time€than€is€specified€in€ASTM€C€94€may€be€required.€€WhenÏair€temperature€is€between€85€and€90€degrees€F,€reduce€the€mixingÏand€delivery€time€from€90€to€75€minutes.€€When€air€temperature€isÏabove€90€degrees€F,€reduce€the€mixing€and€delivery€time€to€60€min.Ð ` (#` (# ÐññÌà0   àL.à0€ (# (#àAdmixtures€that€have€been€approved€in€writing€by€the€ContractingÐ … $ ÐOfficer€may€be€used€to€aid€in€setting€times€when€pouring€during€hot€orÏcold€weather€conditions.Ð €(#€(# ÐññÌññññ3.2à0 € àCONCRETE€PLACEMENTÐ¥#@(€(#€(# ÐÌà0   àA.€à0€ (# (#àPlacement€and€Consolidation:Ð5%Ð *€(#€(# Ðà0   àà0€ (# (#à1.à0` €(#€(#àWhen€concrete€cannot€be€placed€within€the€time€frame€specifiedÐ ý%˜!+ Ðabove,€do€not€place€it,€but€remove€it€from€the€Ô_ÔjobsiteÔ_Ô.Ð ` (#` (# Ðà0   àà0€ (# (#à2.à0` €(#€(#àConcrete€shall€be€placed€only€in€the€presence€of€the€ContractingÐ '(#- ÐOfficer€who€shall€be€notified€24€hours€in€advance€of€each€intendedÏconcrete€placement.€€Concrete€shall€be€placed€in€maximum€lifts€ofÏ[18]€inches€([450]€mm),€and€shall€be€well„vibrated,€rodded,€orÏspaded€into€place€to€fill€voids€and€angles€to€ensure€smoothÐ ­*H&1 Ðsurfaces€and€dense€concrete.€€Concrete€shall€be€deposited€at€itsÏfinal€position,€and€shall€not€be€€allowed€to€flow€in€a€manner€thatÏwill€cause€segregation€of€the€materials.€€Concrete€must€not€beÏdropped€more€than€[5]€feet€([1500]€mm)€vertically€without€use€of€aÏÔ_ÔtremieÔ_Ô€or€similar€device.Ð ` (#` (# ÐÌà0   àB.à0€ (# (#àBonding€to€Existing€Concrete:€€When€a€bond€is€desired€between€freshÐ  ° Ðconcrete€and€concrete€which€has€set,€the€surface€of€the€concreteÏalready€in€place€shall€be€thoroughly€cleaned€of€loose€material,ÏÔ_ÔlaitanceÔ_Ô,€dirt,€and€other€foreign€material,€and€the€old€concrete€shallÏbe€soaked€with€water.€€When€no€bond€is€desired€between€the€oldÏconcrete€and€the€new,€the€surface€of€the€old€concrete€that€will€comeÏin€contact€with€the€fresh€concrete€shall€be€painted€with€an€Ô_ÔasphaltumÔ_ÔÏor€other€suitable€material€to€prevent€bonding.Ð €(#€(# ÐÌà0   àC.à0€ (# (#àHot€Weather€Concreting:€€Ô_ÔACIÔ_Ô€305R.и €(#€(# ÐÌà0   àD.à0€ (# (#àCold€Weather€Concreting:€€Ô_ÔACIÔ_Ô€306R.€€Materials€needed€for€protectionÐ ­H  Ðshall€be€on€the€Ô_ÔjobsiteÔ_Ô€before€concrete€work€is€started.€€Do€not€placeÏconcrete€on€a€frozen€Ô_ÔsubgradeÔ_Ô€or€against€surfaces€having€deposits€ofÏfrost,€snow,€or€ice.Ð €(#€(# ÐÌÔ& @ Ô3.3à0 € àCONCRETE€FINISHINGЕ0€(#€(# ÐññÌññ*****************************************************ÌINDICATE€THE€TYPE€OF€FINISH€REQUIRED€HERE€OR€ON€THE€DRAWINGS.Ì*****************************************************ÌññÌññà0   àA.à0€ (# (#àConcrete€Surface€Finishes:ÐEà€(#€(# ÐÔ'@•†~Ôà0   àà0€ (# (#à1.à0` €(#€(#àThe€top€surface€of€walls€and€interior€slabs€shall€be€given€aÐ  ¨ Ð[wood„float]€finish€after€Ô_ÔscreedingÔ_Ô.€€[Concrete€shall€be€finishedÏas€indicated€on€the€drawings.]Ð ` (#` (# Ðà0   àà0€ (# (#à2.à0` €(#€(#àFinish€exterior€slabs€with€a€broomed€finish€unless€otherwiseÐ e  Ðindicated€on€the€drawings.€€After€floating€and€troweling€and€afterÏthe€water€sheen€has€disappeared,€brush€lightly€with€an€approvedÏsteel,€fiber,€or€horsehair€broom€not€less€than€450€mm€(18€inches)Ïwide.€€Brush€to€form€a€uniform€roughened€surface€at€right€anglesÏto€the€centerline.€€Edge€joints€and€panel€edges€with€a€metal€toolÏto€leave€a€smooth€border€around€each€panel.Ð ` (#` (# Ðà0   àà0€ (# (#à3.à0` €(#€(#àApply€a€sealer€and€hardener€to€the€floor€according€to€theÐ Ý"x' Ðmanufacturer's€instructions.€Ð ` (#` (# Ðà0   àà0€ (# (#à4.à0` €(#€(#àFinish€interior€slabs€according€to€Ô_ÔACIÔ_Ô€301,€paragraph€11.7.3.€€TheÐ m$ ) Ðfinished€floor€surface€shall€have€a€smooth€architectural„typeÏfinish€with€no€irregularities,€cracking,€crazing,€or€Ô_ÔspallingÔ_Ô.Ð ` (#` (# ÐÌÌà0   àB.à0€ (# (#àForm€Removal:€€Ô_ÔFormworkÔ_Ô€not€supporting€concrete,€may€be€removed€afterÐ U(ð#. Ðcuring€at€not€less€than€50€degrees€F€for€24€hours€after€placingÏconcrete,€and€when€curing€and€protection€procedures€are€followed€asÏspecified.€€The€concrete€shall€be€sufficiently€hard€so€as€not€to€beÐ ­*H&1 Ðdamaged€by€form€removal.€€Ô_ÔFormworkÔ_Ô€and€false€work€supporting€live€orÏdead€loads€of€concrete€(such€as€slabs€and€other€structural€elements)Ïshall€not€be€removed€for€a€minimum€of€14€days,€and€after€the€14€days,Ïnot€until€concrete€has€attained€the€design€minimum€28„day€compressiveÏstrength€as€indicated€by€test€cylinders.Ð €(#€(# ÐÌà0   àC.à0€ (# (#àConcrete€Finish€Patching:€€Immediately€after€the€removal€of€the€forms,Ð  ° Ðremove€bulges€and€projections€on€exposed€concrete€by€chipping€orÏtooling,€and€rub€or€grind€the€surface.€€Chip€honeycombed€or€otherÏdefective€areas€to€solid€concrete;€cut€edges€to€right€angles€with€theÏsurface.€€Brush€cavities€with€a€grout€of€cement€and€water,€and€pointÏwith€a€mortar€of€cement,€sand,€and€water€similar€to€that€used€in€theÏconcrete.€€Keep€the€concrete€thoroughly€saturated€with€water€duringÏthe€finishing.Ð €(#€(# ÐÌà0   àD.à0€ (# (#àJoint€Sealing:€€Use€compressed€air€to€blow€dirt€and€dust€from€jointsÐ ¸  Ðto€be€sealed.€€When€joints€are€dry€and€dust-free,€apply€sealant€in€theÏjoints€according€to€the€manufacturer's€instructions.€€The€finishedÏjoints€shall€have€no€depressions€or€protrusions€and€continuous€sealsÏshall€be€formed€along€the€joints.Ð €(#€(# ÐÌ3.4à0 € àCONCRETE€CURINGÐÍh€(#€(# ÐÌà0   àA.à0€ (# (#àCuring€Time:€€Cure€concrete€for€a€period€of€7€calendar€days€from€timeÐ ]ø Ðof€placement€by€using€one€of€the€following€methods:Ð €(#€(# Ðà0   àà0€ (# (#à1.à0` €(#€(#àThe€liquid€membrane„forming€compound€shall€be€sprayed€on€and€shallÐ íˆ Ðbe€dry€to€the€touch€in€not€more€than€4€hours€from€time€ofÏapplication,€according€to€Paragraph€7.1,€ASTM€C€309.€€This€methodÏof€curing€shall€not€be€used€where€additional€concrete,€mortar,€orÏjoint€sealant€will€be€placed€against€the€cured€concrete.Ð ` (#` (# Ðà0   àà0€ (# (#à2.à0` €(#€(#àCover€the€damp€concrete€surfaces€with€impermeable€sheets€ofÐ Õp Ðpolyethylene€material€or€other€sheet€coverings€with€joints€lappedññÏa€minimum€of€6„inches€(150€mm)ññ€and€sealed€to€keep€moisture€in.Ð ` (#` (# Ðà0   àà0€ (# (#à3.à0` €(#€(#àConcrete€forms€may€be€left€in€place€to€provide€proper€curing€ofÐ -È! Ðconcrete€in€contact€with€the€forms.€€Curing€of€unformed€concreteÏsurfaces€shall€be€by€one€of€the€methods€shown€above,€and€shallÏbegin€as€soon€as€the€concrete€is€hard€enough€to€allow€applicationÏof€the€curing€material.€€If€forms€are€removed€before€the€end€ofÏthe€7„day€period,€curing€by€use€of€the€liquid€membrane„formingÏcompound€or€sheets€of€polyethylene€material€shall€beginÏimmediately,€and€shall€continue€for€the€remainder€of€the€7„dayÏcuring€period.Ð ` (#` (# ÐÌ3.5à0 € àFIELD€QUALITY€CONTROLÐý%˜!+€(#€(# ÐÌà0   àA.à0€ (# (#àTesting:€€[The€Government€will€perform€the€compression€and€slumpÐ '(#- Ðtests,€record,€and€distribute€the€results.]€€[The€Government€will€makeÏarrangements€for€a€certified,€independent€testing€laboratory€toÏperform€the€required€compression€and€slump€testing,€record€andÏdistribute€the€results.]€€[Perform€the€compression€and€slump€tests.]€€Ð ­*H&1 Ð[Furnish€necessary€equipment,€labor,€and€materials€to€conduct€theÏtesting.]€€[Testing€shall€be€conducted€in€the€presence€of€theÏContracting€Officer€who€shall€be€given€48„hours€notice€before€testsÏare€to€be€conducted.]€€[The€Contractor€shall€make€arrangements€for€aÏcertified,€independent€testing€laboratory,€according€to€theÏrequirements€of€Section€014ññ58ññññ10ññ€„€Testing€Laboratory€Services,€toÏperform€the€compression€and€slump€testing,€recording,€and€distributingÏof€the€results.]Ð €(#€(# ÐÌà0   àB.à0€ (# (#àAir€Content€Test:€€ASTM€C€231.€€A€minimum€of€one€air€content€testÐ m   Ðshall€be€performed€prior€to€each€pour€of€concrete.Ð €(#€(# ÐÌà0   àC.à0€ (# (#àCompression€Tests:€€A€minimum€of€one€set€of€test€cylinders€(each€setÐ Å `  Ðshall€consist€of€six€cylinders)€shall€be€provided€each€day€concrete€isÏplaced.€€An€additional€set€of€test€cylinders€shall€be€provided€on€daysÏthe€pour€exceeds€[15]€òòóócubic€yards€([11]€cubic€meters).€€The€testÐ ¸  Ðcylinders€shall€be€made€and€cured€according€to€ASTM€C€31.€€Twenty-fourÏhours€after€taking€cylinders,€they€shall€be€carefully€transported€toÏthe€testing€laboratory€for€moisture€curing.€€Expense€of€original€setsÏof€tests€will€be€borne€by€the€[Government.]€€[Contractor.]€€TheÏconcrete€placement€locations€represented€by€the€test€cylinders€shallÏbe€noted€on€record€drawings.€€Test€cylinders€shall€be€identified€withÏsymbols€to€indicate€the€location€where€the€concrete€was€obtained€forÏthe€test.€€Two€cylinders€are€to€be€tested€to€failure€at€7€days€and€twoÏat€28€days,€according€to€ASTMC€39.€€Other€cylinders€shall€be€kept€forÏtesting€in€case€the€28-day€test€falls€below€required€strength.Ð €(#€(# ÐÌà0   àD.à0€ (# (#àSlump€Test:€€ASTM€C€143.€€A€minimum€of€one€slump€test€shall€beÐ } Ðperformed€for€each€pour€of€concrete.€€Ð €(#€(# ÐÌ3.6à0 € àPROTECTIONÐÕp€(#€(# ÐÌà0   àA.à0€ (# (#àRequirements:€€Concrete€shall€be€protected€from€mechanical€andÐ e  Ðchemical€damage€resulting€from€construction€activities.€€Floor€slabsÏshall€be€protected€from€impact€and€wheel€traffic€as€well€as€stainingÏresulting€from€oils,€solvents,€chemicals,€and€paints.Ð €(#€(# ÐÌÔ  ÔòòPART€4:€€MEASUREMENT€AND€PAYMENTóóÐ M!è% ÐÌ4.1à0 € àMETHOD€OF€MEASUREMENTÐÝ"x'€(#€(# Ð*****************************************************ÌWHEN€A€"LUMP€SUM"€CONTRACT€IS€USED,€DELETE€THE€TITLE€PART€4:€€MEASUREMENT€ANDÏPAYMENT,€AND€BOTH€ARTICLES€FROM€THIS€SECTION.€€MEASUREMENT€AND€PAYMENT€WILL€BEÏADDRESSED€IN€PART€4€OF€SECTION€01009€„GENERAL€INFORMATION€AND€REQUIREMENTS€ORÏSECTION€01010€„€SUMMARY€OF€WORK.ÌÌWHEN€NOT€A€"LUMP€SUM"€CONTRACT,€SELECT€APPLICABLE€PHRASES;€USE€THE€"NOÏMEASUREMENT"€PHRASE€WHEN€NONE€OF€THE€PAY€ITEMS€IN€THIS€SECTION€ARE€INCLUDED€INÏTHE€BID€SCHEDULE.Ì*****************************************************Ð ­*H&1 Їà0   àA.à0€ (# (#àUnits:€€The€work€described€in€this€section€will€[not€be€measured€forÐ e Ðpayment.]€€[be€measured€and€paid€for]€[on€a€lump€sum€basis.]€€[by€theÏòòóócubic€yard,€based€on€the€dimensions€of€the€structure€and€the€detailsÐ õ Ðshown€on€the€drawings.]€€[No€payment€will€be€made€for€concrete€placedÏbeyond€the€lines€and€grades€shown.]€€[Reinforcing€steel€will€[beÏmeasured€and€paid€for€by€the€pound€as€computed€based€on€the€dimensionsÏand€reinforcing€details€shown€on€the€drawings.]]€€[not€be€paid€forÏseparately,€but€is€a€part€of€the€payment€for€concrete.]]€€[ClearingÏand€grubbing€will€be€[paid€for€separately€under€Section€02111€-ÏClearing€and€Grubbing.]]€€[included€in€the€bid€price€for€other€itemsÏof€the€Contract.]]Ð €(#€(# ÐÌ4.2à0 € àBASIS€OF€PAYMENTÐÅ ` €(#€(# Ð*****************************************************ÌWHEN€NOT€A€"LUMP€SUM"€CONTRACT,€SELECT€APPLICABLE€PHRASES;€USE€THE€"NO€DIRECTÏPAYMENT"€PHRASE€WHEN€NONE€OF€THE€PAY€ITEMS€IN€THIS€SECTION€ARE€INCLUDED€IN€THEÏBID€SCHEDULE.ÌÌWHEN€NOT€A€"LUMP€SUM"€CONTRACT€AND€PAYMENT€IS€TO€BE€MADE€UNDER€THIS€SECTION,ÏSELECT€APPLICABLE€PAY€ITEMS.€€DO€NOT€CHANGE€PAY€ITEM€NUMBER.€€WHENÏGOVERNMENT-FURNISHED€PROPERTY€IS€SPECIFIED€FOR€PAY€ITEMS,€THE€LETTER€SUFFIX€Ô_ÔGFÔ_ÔÏWILL€BE€ADDED€AFTER€THE€PARENTHESIS€OF€THE€ITEM€NUMBER.Ì*****************************************************Ìà0   àA.à0€ (# (#àPayment:€€[No€direct€payment€for€the€work€described€under€this€sectionÐ ]ø Ðwill€be€made.€€Include€consideration€for€this€item€in€the€bid€priceÏfor€other€items€of€the€Contract.]€€[Prices€and€payment€will€be€fullÏcompensation€for€the€work€described€in€this€section.€€Payment€will€beÏmade€under:]Ð €(#€(# ÐÌà0   àà0€ (# (#àòòPay€Itemóó€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€à @ àòòà0 €(#€(#àPay€UnitóóÐ ¨ (# (# ÐÌà0   àà0€ (# (#à03310(01)€€Structural€Concreteà‚#  R(#.881€(#€(##àLump€SumˆÐ 8 Ðà0   àà0€ (# (#à03310(02)€€Structural€Concreteà‚#@@P(#.881€(#€(##àCubic€YardˆÐ e  Ðà0   àà0€ (# (#à03310(03)€€Structural€Concreteà‚#ÜÜO(#.881€(#€(##àCubic€MeterˆÐ -È! Ðà0   àà0€ (# (#à03310(10)€€Concrete,€Type€Aà‚#  R(#.  .€(#€(##àLump€SumˆÐ õ" Ðà0   àà0€ (# (#à03310(11)€€Concrete,€Type€Aà‚#@@P(#.  .€(#€(##àCubic€YardˆÐ ½X# Ðà0   àà0€ (# (#à03310(12)€€Concrete,€Type€Aà‚#ÜÜO(#.  .€(#€(##àCubic€MeterˆÐ … $ Ðà0   àà0€ (# (#à03310(20)€€Concrete,€Type€Bà‚#  R(#.  .€(#€(##àLump€SumˆÐ M!è% Ðà0   àà0€ (# (#à03310(21)€€Concrete,€Type€Bà‚#@@P(#.  .€(#€(##àCubic€YardˆÐ "°& Ðà0   àà0€ (# (#à03310(22)€€Concrete,€Type€Bà‚#ÜÜO(#.  .€(#€(##àCubic€MeterˆÐ Ý"x' Ðà0   àà0€ (# (#à03310(30)€€Reinforcing€Steelà‚#4!4!U(#.pp/€(#€(##àPoundˆÐ ¥#@( Ðà0   àà0€ (# (#à03310(31)€€Reinforcing€Steelà‚#  R(#.pp/€(#€(##àKilogramˆÐ m$ ) ÐÌÌÌà@00,ìàEND€OF€SECTIONˆÌ