废弃水泥混凝土再生集料需水量问题分析

废弃水泥混凝土再生集料在配制混凝土或采用无机结合料稳定做基层材料时，存在明显的需水量改变的问题。通过试验和分析认为．需水量的改变一是再生集料配制混凝土时要额外吸收一定的水分，二是因为水泥稳定基层材料在击实时将再生集料中原有的结晶水成分累加造成的。

Analysis of Moisture Content Required in Reuse Regenerated Aggregate of Scrap Cement Concrete

When regenerated aggregate of scrap concrete are used as a material in cement concrete mixture or in semirigid base course stabilized by cement, some changes about the moisture content required are presented remarkably. According to experiment and analysis, it is considered that one reason to cause the changes is that regenerated aggregate can absorb some water from concrete mixture, and the other reason is that the crystal water existed in regenerated aggregate adds up to the optimum moisture content of semirigid base course materials.