广东公路交通
廣東公路交通
엄동공로교통
GUANGDONG HIGHWAY COMMUNICATIONS
2014年
3期
1-4,15
,共5页
碾压混凝土%干缩%温缩%影响因素
碾壓混凝土%榦縮%溫縮%影響因素
년압혼응토%간축%온축%영향인소
RCC%drying shrinkages%temperature shrinkages%effect factors
试验研究了砂率、水泥用量及含水量对碾压混凝土干缩、温缩性能的影响，结果表明：水泥用量对碾压混凝土的干缩性影响最大，其次是含水量，再次是砂率；含水量对碾压混凝土的温缩性影响最大，砂率在低温时影响较大，水泥用量影响最小；碾压混凝土存在高温及低温敏感区间。
試驗研究瞭砂率、水泥用量及含水量對碾壓混凝土榦縮、溫縮性能的影響，結果錶明：水泥用量對碾壓混凝土的榦縮性影響最大，其次是含水量，再次是砂率；含水量對碾壓混凝土的溫縮性影響最大，砂率在低溫時影響較大，水泥用量影響最小；碾壓混凝土存在高溫及低溫敏感區間。
시험연구료사솔、수니용량급함수량대년압혼응토간축、온축성능적영향，결과표명：수니용량대년압혼응토적간축성영향최대，기차시함수량，재차시사솔；함수량대년압혼응토적온축성영향최대，사솔재저온시영향교대，수니용량영향최소；년압혼응토존재고온급저온민감구간。
Experimental study on the effect on the drying shrinkage and temperature shrinkage property of RCC by sand ratio,cement content and moisture capacity has been carried out. The results show that the cement con-tent greatly influence the RCC drying shrinkage,followed by the moisture capacity,while sand ratio last. Mois-ture capacity affect most on the RCC temperature shrinkage,and the greater effect is from sand ratio at low tem-peratures,cement content has the minimal effect. There are sensitive ranges of both high and low temperature for the RCC.
