混凝土
混凝土
혼응토
CONCRETE
2014年
9期
135-137,141
,共4页
双掺%II级粉煤灰%S95矿粉%高强混凝土%正交试验
雙摻%II級粉煤灰%S95礦粉%高彊混凝土%正交試驗
쌍참%II급분매회%S95광분%고강혼응토%정교시험
double-mixing%grade II fly ash%S95 GGBS%high strength concrete%orthogonal test
通过双掺II级粉煤灰与S95级矿粉来配置高强混凝土,并采用设计正交试验的方法将粉煤灰掺量、矿粉掺量和高效减水剂掺量定为影响高强混凝土抗压强度和坍落度的主要因素进行试验分析,确定配置高强混凝土各组分间合理的掺量,并分析了高强混凝土3、7、28 d强度。结果表明在无早期强度要求时,II级粉煤灰最佳掺量为胶凝材料的15%~20%左右,S95级矿粉最佳掺量为胶凝材料的15%左右,减水剂的最佳掺量为胶凝材料的2.0%。
通過雙摻II級粉煤灰與S95級礦粉來配置高彊混凝土,併採用設計正交試驗的方法將粉煤灰摻量、礦粉摻量和高效減水劑摻量定為影響高彊混凝土抗壓彊度和坍落度的主要因素進行試驗分析,確定配置高彊混凝土各組分間閤理的摻量,併分析瞭高彊混凝土3、7、28 d彊度。結果錶明在無早期彊度要求時,II級粉煤灰最佳摻量為膠凝材料的15%~20%左右,S95級礦粉最佳摻量為膠凝材料的15%左右,減水劑的最佳摻量為膠凝材料的2.0%。
통과쌍참II급분매회여S95급광분래배치고강혼응토,병채용설계정교시험적방법장분매회참량、광분참량화고효감수제참량정위영향고강혼응토항압강도화담락도적주요인소진행시험분석,학정배치고강혼응토각조분간합리적참량,병분석료고강혼응토3、7、28 d강도。결과표명재무조기강도요구시,II급분매회최가참량위효응재료적15%~20%좌우,S95급광분최가참량위효응재료적15%좌우,감수제적최가참량위효응재료적2.0%。
It focuses on investigation of mixing high strength concrete with grade II fly ash and S95 GGBS(ground granulated buastfur-nace slag).By designing of orthogonal test,the dosage of grade II fly ash,S95 GGBS and the water reducing agent are given as the influ-encing factors of high-strength concrete’s compressive strength and collapsed slump.The optimum mix amount of the components was de-termined.Data of strength about the age of 3,7,28 d were analyzed.The result showed that when there was no requirement of early strength,the optimum content of grade II fly ash was between 15%and 20%,S95 GGBS was 15%and water reducing agent was 2%.