Study on Pavement Performance of Cement Concretewith More Than 30%Fly Ash Content
This paper studies the differences of pavement performance of cement concrete with different fly ash content.The results show that with the increase of fly ash content,concrete slump increases in the early stage and decreases in the later stage.When the fly ash content is 30%and 40%,there is no significant difference between the strength of 60 d cured concrete specimens and that without fly ash.The brittleness of concrete does not change significantly after the addition of fly ash.The quality loss rate of the concrete specimens prepared with fly ash content of 30%and 40%can still maintain at a low level after 300 freeze-thaw cycles,which shows that the freeze-resistance of the concrete specimens is at a good level.
国家科技期刊平台
NSTL
万方数据
