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QA-100
Project: Mix ID:
Contractor: Mix Description:
Submittal Date: Strength Required: psi
Application(s): Slump (inch): + Air: +
MIX DESIGN QUANTITIESAbsolute
Material / Spec. Product / Source Gravity Volume (ft3)
Material ODOT ID SSD Bulk F.M. Dry Rodded Unit Wt.
G&W 3/4 - 1/2 Round lb/ft3
G&W 1/2 - #4 Round lb/ft3
G&W Concrete Sand
Coarse and fine aggregate gradations meet ASTM C 33 Combined Averages lb/ft3
Comments:
Footnotes: *SSD Weights and Specific Gravities **Admixture dosage rates will be adjusted according to manufacturersrecommendations to accommodate varying field conditions.
The test record(s) from the following mix design(s) will be used to calculate the samplestandard deviation (ss) per ACI 318 R-05 Chapter 5 section 5.3.1**
Mix 1: 314561 Tests 30 Std. Dev. 705
Mix 2: Tests Std. Dev.
Average sample standard deviation (ss): 705
With 15 or more test results for the proposed mix design:
Per ACI 318R-05, Chapter 5 table 5.3.1.2,
Modification Factor for sample standard deviation = 1.00Modified sample standard deviation, ss = 705
Using the larger of the calculated results per section 5.3.2, or the value from table 5.3.2.2:
Calculated required average strength (f'cr): 4143 psi
The strength shown on the mix performance summary is: 6310 psi
Mix exceeds required average strength requirements by: 2167 psi
**Per ACI 318R-05 Chapter 5 section 5.3.1.1 :
a - similar materials, quality control and conditionsb - within 1,000 psi of concrete specified for jobc - 30 consecutive tests or two groups of consecutive tests
4143 psi
ACI f'cr Calculation Worksheet
f'c < 3000f'c > 3000, and < 5000
f'c > 5000
QA-100
Project: Mix ID:
Contractor: Mix Description:
Submittal Date: Strength Required: psi
Application(s): Slump (inch): + Air: +
MIX DESIGN QUANTITIESAbsolute
Material / Spec. Product / Source Gravity Volume (ft3)
Material ODOT ID SSD Bulk F.M. Dry Rodded Unit Wt.
G&W 3/4 - 1/2 Round lb/ft3
G&W 1/2 - #4 Round lb/ft3
G&W Concrete Sand
Coarse and fine aggregate gradations meet ASTM C 33 Combined Averages lb/ft3
Comments:
Footnotes: *SSD Weights and Specific Gravities **Admixture dosage rates will be adjusted according to manufacturersrecommendations to accommodate varying field conditions.
The test record(s) from the following mix design(s) will be used to calculate the samplestandard deviation (ss) per ACI 318 R-05 Chapter 5 section 5.3.1**
Mix 1: 314565 Tests 30 Std. Dev. 676
Mix 2: Tests Std. Dev.
Average sample standard deviation (ss): 676
With 15 or more test results for the proposed mix design:
Per ACI 318R-05, Chapter 5 table 5.3.1.2,
Modification Factor for sample standard deviation = 1.00Modified sample standard deviation, ss = 676
Using the larger of the calculated results per section 5.3.2, or the value from table 5.3.2.2:
Calculated required average strength (f'cr): 4075 psi
The strength shown on the mix performance summary is: 6290 psi
Mix exceeds required average strength requirements by: 2215 psi
**Per ACI 318R-05 Chapter 5 section 5.3.1.1 :
a - similar materials, quality control and conditionsb - within 1,000 psi of concrete specified for jobc - 30 consecutive tests or two groups of consecutive tests
Air Content Determination:ThetotalaircontentofnormalweightconcreteshouldbemeasuredinstrictaccordancewithASTMC231,“StandardTestMethodforAirContentofFreshlyMixedConcretebythePressureMethod”orASTMC173/C173M,“StandardTestMethodforAirContentofFreshlyMixedConcretebytheVolumetricMethod.”TheaircontentoflightweightconcreteshouldonlybedeterminedusingtheVolumetricMethod. The air content should be verified by calculating the gravimetric air content in accordancewithASTMC138/C138M,“StandardTestMethodforDensity(UnitWeight),Yield,andAirContent(Gravimetric)ofConcrete.”Ifthetotalaircontent,asmeasuredbythe Pressure Method or Volumetric Method and as verified by the Gravimetric Method, deviatesbymorethan1-1/2%,thecauseshouldbedeterminedandcorrectedthroughequipmentcalibrationorbywhateverprocessisdeemednecessary.
GuidelinesforUseDosage: ThereisnostandarddosageforMB-AE90admixture.Theexactquantityofair-entrainingadmixtureneededforagivenaircontentofconcretevariesbecauseofdifferencesinconcrete-makingmaterialsandambientconditions.Typicalfactorsthatmight influence the amount of air entrained include: temperature, cementitious materials, sandgradation,sand-aggregateratio,mixtureproportions,slump,meansofconveyingand placement, consolidation and finishing technique.
TheamountofMB-AE90admixtureusedwilldependupontheamountofentrainedairrequiredunderactualjobconditions.In a trial mixture, use 1/4 to 4 fl oz/cwt (16-260 mL/100 kg) ofcementitiousmaterial.Measuretheaircontentofthetrialmixture,and,ifneeded,eitherincreaseordecreasethequantityofMB-AE90admixturetoobtainthedesiredaircontent.
Dispensing and Mixing:AddMB-AE90admixturetotheconcretemixtureusingadispenserdesignedforair-entrainingadmixtures,oraddmanuallyusingasuitablemeasuringdevicethatensuresaccuracywithinplusorminus3%oftherequiredamount.
Foroptimum,consistentperformance,theair-entrainingadmixture should be dispensed on damp, fine aggregate. If the concrete mixture contains fine lightweight aggregate, field evaluationsshouldbeconductedtodeterminethebestmethodtodispensetheair-entrainingadmixture.
PrecautionIna2005publicationfromthePortlandCementAssociation(PCAR&DSerialNo.2789),itwasreportedthatproblematicair-voidclusteringthatcanpotentiallyleadtoabovenormaldecreasesinstrengthwasfoundtocoincidewithlateadditions of water to air-entrained concretes. Late additions ofwaterincludetheconventionalpracticeofholdingbackwaterduringbatchingforadditionatthejobsite.Therefore,cautionshouldbeexercisedwithdelayedadditionsofwatertoair-entrainedconcrete.Furthermore,anaircontentcheckshouldbeperformedafteranypost-batchingadditiontoanair-entrainedconcretemixture.
ProductNotesCorrosivity – Non-Chloride, Non-Corrosive:MB-AE90admixturewillneitherinitiatenorpromotecorrosionofreinforcingandprestressingsteelembeddedinconcrete,orof galvanized floor and roof systems. No calcium chloride or otherchloride-basedingredientsareusedinthemanufactureofthisadmixture.
StorageandHandlingStorage Temperature:MB-AE90admixtureshouldbestoredanddispensedat31°F(-0.5°C)orhigher.Althoughfreezingdoesnotharmthisproduct,precautionsshouldbetakentoprotectitfromfreezing.IfMB-AE90admixturefreezes,thawat35°F(2°C)oraboveandcompletelyreconstitutebymildmechanicalagitation.Do not use pressurized air for agitation.
The Admixture Systems business of BASF Construction Chemicals is a leading provider of innovative additives for specialty concrete used in the ready mix, precast, manufactured concrete products, underground construction and paving markets throughout the NAFTA region. The Company’s respected Master Builders brand products are used to improve the placing, pumping, finishing, appearance and performance characteristics of concrete.
ProductData:MB-AE™90
BASFConstructionChemicals,LLCAdmixtureSystemswww.masterbuilders.comUnitedStates23700ChagrinBoulevard,Cleveland,Ohio44122-5544nTel:800628-9990nFax:216839-8821Canada 1800 Clark Boulevard, Brampton, Ontario L6T 4M7 nTel:800387-5862nFax:905792-0651
PerformanceCharacteristicsRate of Hardening:Thetemperatureoftheconcretemixtureandtheambienttemperatureaffectthehardeningrateofconcrete.Athighertemperatures,concretestiffens more rapidly which may cause problems with placing and finishing. The dosage rangeofPozzolith80admixturecanbevariedtoprovidethedesiredsettingcharacteristics.
GuidelinesforUseDosage:Dependingonthesettingcharacteristicsdesired,Pozzolith80admixtureisrecommended for use within the dosage range of 3-10 fl oz/cwt (195-650 mL/100 kg) of cementitiousmaterialsformostconcretemixturesusingaverageconcreteingredients.Becauseofvariationsinjobconditionsandconcretematerials,dosagesotherthantherecommendedamountsmayberequired.Insuchcases,contactyourBASFConstructionChemicalsrepresentative.
StorageandHandlingStorage Temperature:IfPozzolith80admixturefreezes,thaw at 35 °F (2 °C) or above and completely reconstitute by mildmechanicalagitation.Do not use pressurized air for agitation.
The Admixture Systems business of BASF Construction Chemicals is a leading provider of innovative additives for specialty concrete used in the ready mix, precast, manufactured concrete products, underground construction and paving markets throughout the NAFTA region. The Company’s respected Master Builders brand products are used to improve the placing, pumping, finishing, appearance and performance characteristics of concrete.
ProductData:POZZOLITH®80
BASFConstructionChemicals,LLCAdmixtureSystemswww.masterbuilders.comUnited States 23700 Chagrin Boulevard, Cleveland, Ohio 44122-5544 l Tel: 800 628-9990 l Fax: 216 839-8821Canada 1800 Clark Boulevard, Brampton, Ontario L6T 4M7 l Tel: 800 387-5862 l Fax: 905 792-0651