摘要
本文在试验的基础上,就粉煤灰、硅粉和氧化镁等主要掺合料对碾压混凝土(RCC)抗裂性能的影响进行了研究,提出抗折强度与折压强度之和的百分比来量化标定这些掺合料对碾压混凝土的抗裂性能的影响,得到比较理想的结果。在此基础上,得到当粉煤灰掺量为60%,硅粉和氧化镁掺量均为5%复合掺入时,对碾压混凝土的抗裂性能的改善最佳。
Based on the experiments,the study on the influences on crack resistance of RCC with the main mixtures:fly ash,silicon,and magnesia have been done deeply.From the angle of the ratio of break strength to compressive strength,we have gotten an ideal result to explain the crack resistance of RCC.And on this base,we have gotten the best compounded quantities to improve the crack resistance of RCC of fly ash,60%;silicaon,5%;magnesia,5%;and proper water-reducing admixtures mixed into RCC.
出处
《混凝土》
CAS
CSCD
2004年第3期40-42,共3页
Concrete
关键词
碾压混凝土
粉煤灰
硅粉
氧化镁
抗裂性
RCC (Roll Compacted Concrete)
fly ash
silicon
magnesia
crack resistance
