Through the research on the forepart strength mechanism of Lime-fly ash Concrete, the characters of fly ash from Zhoukou and the effect of forepart intensity of the different mix doping.

• 通过对二灰碎石早强机理的研究，针对周口粉煤灰的具体特点，研究不同外掺剂对二灰碎石早强的作用效果，有效地解决了二灰碎石早期强度不足的问题；