【摘要】 验证试验结果表明,通过聚乙烯醇—水泥系统的胶凝状况可以正确地反映这类自硬砂硬化速度的快慢,从而减少了试验工作量和缩短了试验时间。更多还原

【Abstract】 It is proved from the test results that the gelation condition of PVA-cement can correctly describe the hardening rate of self-hardening sand of this kinds. Thus, the experiment work and test time can be reduced.更多还原