A. 粉煤灰路堤是指全部采用粉煤灰或部分采用粉煤灰填筑的路堤
B. 任何等级的公路路堤严禁采用烧失量大于20%的粉煤灰
C. 粉煤灰路堤设计时，主要设计参数包括最大干密度、最优含水量、内摩擦角、内聚力、渗透系数、压缩系数、毛隙上升高度等
D. 对高度在5.0m以上的粉煤灰路堤应验算路堤自身的稳定性
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