摘要
本文研究了矿渣粉细度和掺量对高性能混凝土的强度、抗渗、抗冻融等性能的影响.试验表明:矿渣越细,早期强度越高,但对后期强度的影响逐渐变小;随着矿渣粉掺量增加,3d、7d强度明显降低,28d强度在掺量30%时最大,对后期强度影响逐渐变小.掺入20%～40%矿渣粉配制的高性能混凝土具有良好的施工性能和优异的耐久性能.
According to correlative technology criterions, the cement mortar and the concrete experiment were performed, in which the impact of the slag-powder＇ s fineness and quantity upon the strength, durability and workability of HPC （High Performance Concrete）were studied. The test consequence revealed that the finer the slag-powder is, the higher the concrete strength is, and the impact of the fineness and the quantity on long duration strength diminished gradually; the 3d and 7d strength diminished obviously with the increase of slag-powder, and 28d strength with 30 % slag-powder is the highest among other slag-powder mixture ratios; the HPC with 20 % -40 % slag powder was more workable and durable.
出处
《混凝土》
CAS
CSCD
北大核心
2005年第7期67-70,共4页
Concrete
