只有1个最符合题意) 某市政道路1.87km,面积10.8万m2。路基2~3m填土,路面结构65cm,12%石灰土底基层15cm,石灰粉煤灰砂砾基层35cm,沥青混凝土上、中、下面层15cm。有给水、排水管线。计划施工期限为2008年10月~2009年6月。 为压实石灰土、水泥土、石灰粉煤灰砂砾基层,必须掌握的一个关键因素是( )。
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