多选题:有利于石灰稳定土基层裂缝的防治措施有( )。

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题目内容:
有利于石灰稳定土基层裂缝的防治措施有( )。 A.超出规范标准提高水泥用量
B.施工用土中适量掺加粉煤灰
C.在石灰土基层与路面间铺筑一层碎石过渡层
D.采用塑性指数高的土
E.设置伸缩缝

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