Experimental Study on Strength Behavior of Concrete Containing Fly Ash and Chemical Admixture

High strength concrete tis used fortresisting hightcompressive loadtand improved strength. Thetcement content of the mix proportion forthightstrengthtconcretetis incrediblythightcomparedtwith conventionaltconcretetstrength. Flytashtistthetbytproducttoftcoaltburning.tSuchtmaterialtwastusedtastatparti...

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Published in:International journal for research in applied science and engineering technology 2022-02, Vol.10 (2), p.383-397
Main Authors: Alam, MD. Parvej, Nag, Homendra, Sahu, Devika, Sonwani, Vedprakash
Format: Article
Language:English
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Summary:High strength concrete tis used fortresisting hightcompressive loadtand improved strength. Thetcement content of the mix proportion forthightstrengthtconcretetis incrediblythightcomparedtwith conventionaltconcretetstrength. Flytashtistthetbytproducttoftcoaltburning.tSuchtmaterialtwastusedtastatpartialtreplacementtoftcementtinthightstrengthtconcrete, treducingtcarbontdioxidetgastemissionstintotthetatmospheretandtminimizingtthetnegativetimpacttontthetenvironmenttreleasedtfr omtindustrialtwastetdisposaltastlandfill.tThetobjectivetoftthiststudytisttotfindtthetmaxtcompressivetloadtontthetconcretetbytpartia ltreplacementtoftcementtbytflytash.tExperimentaltlaboratorytteststweretconducted.Slumptheighttistmeasuredttotdeterminetthetw orkabilitytoftthetfreshtconcrete.tThetcubetsizetist(150mmtx150mmtx150mm)twhichtistusedtforttestingtcompressivetstrengthtfortt hetagetoft3,t7t&t28tdaystoftcuring.tCement’st%treplacementtwithtflytashtvariestfromt0%,10%,15%t&t20%.tThetstudytresulttsho wstthattthetreplacementtoftcementtbytflytashtuptot20%tincreasestthetslumptvalue.tHowever,tthetreplacementtoftcementtbeyondt 20%tbytashtdecreasestthetworkabilitytoftfreshtconcrete.tThetcompressivetstrengthtoftconcretetbecomestimprovedtandtincreasedt whentthetcementtistreplacedtbytflytashtuptot20%.tAttthetcuringtdaytoft28thtdays,tthetconcretetcontainingt15%tandt20%tflytasht astcementtgainedt2.98%tandt4.84%toftstrength,trespectively.tThiststudytsuggeststthattthetpartialtreplacementtoftcementtbytflyta shtuptot20%tincreasestthetcapacitytofthightstrengthtconcretetandtfreshtconcrete’stworkability. KeywordsFlytAsh,tSupertPlasticizer,tWorkability,tCompressivetStrength.t
ISSN:2321-9653
2321-9653
DOI:10.22214/ijraset.2022.40291