【摘要】 本文采用石灰预处理工艺处理低等级湿排粉煤灰作混凝土的掺合料,发现其配制的混凝土强度超过同掺量的普通二级干灰配制的混凝土强度。通过研究掺活化湿排粉煤灰的混凝土的抗冻性能、收缩性能、抗氯离子渗透性能,发现其耐久性能良好。处理后的粉煤灰可作为优质的混凝土掺合料。更多还原

【Abstract】 Taking low class activated wet fly ash as adimixture of concrete by pre-disposed technology,it is found that the strength of concrete with this kind of fly ash is higher than the concrete with the same quantity of two class dry fly ash.By researching of frost resistance,resistance chloride ion permeability of concrete admixing activated wet fly ash,results show that durability of concrete is good.Fly ash can be take as high quality admixture of concrete.更多还原