浅谈拆模时间、膨胀剂掺量对混凝土限制膨胀率的影响  

Analysis of form removal time,expansive agent dosage on the restrained-expansion rate of concrete

作　　者：邓朝飞[1] 王君菊[2] 

机构地区：[1]四川建筑职业技术学院,四川德阳618000 [2]北京城建建材工业有限公司,北京100049

出　　处：《四川建筑科学研究》2011年第3期197-200,共4页Sichuan Building Science

摘　　要：通过实验,测试了拆模时间、膨胀剂掺量发生变化时混凝土的限制膨胀率,研究了拆模时间和膨胀剂掺量对限制膨胀率的影响变化规律。实验结果表明:在其他条件不变时,混凝土拆模时间越迟,其限制膨胀率越小;膨胀剂掺量越大,其限制膨胀率随之增大。By way of the experiment,the restrained-expansion rates of concrete with different form removal time,different concrete of expansion were tested,and the change rule of restrained-expansion rates was studied.The results indicate：the later the form removal time of concrete,the smaller the restrained-expansion rate;the restrained-expansion rate increased with the increase of expantion agent.

关 键 词：拆模时间 膨胀剂掺量 限制膨胀率 

分 类 号：TU528.042.4[建筑科学—建筑技术科学]