摘要
研究了超细矿渣掺合料对水泥混凝土性能的影响。结果表明:矿渣经超细粉磨不仅提高了其颗粒细度,且有效提高了其水化活性;超细矿渣作为掺合料掺入水泥中,可提高水泥强度,降低水泥标准稠度需水量;利用超细矿渣掺合料可配制大流动性(坍落度达20cm)、超高强(抗压强度3d达到70MPa,28d达到100MPa)混凝土。
The influences of ultra-fine slag on the properties of cement and concrete are in- vestegated.Results show that the activity of slag is increased by ultra-fine grindings;the strength of cement is increased and water demand for standard consistence decreased when cement is blended with ultra-fine slag;it is possible to prepare concrete with high fluidity of 20cm slump and very high strength of 70 MPa in 3 days and 100 MPa in 28 days by use of ultra-fine slag.
基金
上海市高教局青年科技基金。
关键词
细矿渣
流动性混凝土
高强混凝土
ultra-fine slag
high fluidity concrete
very high strength concrete
