经过技术经济比较，确定采用水泥粉煤灰桩复合地基。
Through the technically economical comparison, it is decided that cement fly ash pile compound foundation be adopted.
水泥粉煤灰路面基层是一种兼有水泥和二灰稳定粒料优点的路面基层材料。
The cement fly ash is a base course material for pavement that has the advantage of both cement and fly ash stabilized granular.
文章通过对水泥粉煤灰基层混合料的击实试验，进行粉煤灰掺量的优化分析，探讨了水泥粉煤灰路面基层材料的性能特征和强度形成机理。
Through a compaction test on cement fly ash mixture, the article makes an analysis on the optimized dosage of cement fly ash and discusses the performance character and strength formation mechanism.
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