浅析掺膨胀剂混凝土限制膨胀率的影响因素  

Analysis of influencing factors on the restrained-expansion rate of concrete with expansion agent

作　　者：吕慧君 邓朝飞[2] 李江华[2] 

机构地区：[1]北京新奥混凝土有限公司,北京100190 [2]四川建筑职业技术学院,四川德阳618000

出　　处：《混凝土》2010年第10期31-33,共3页Concrete

摘　　要：通过试验,测试了水胶比、粉煤灰掺量发生变化时,混凝土的限制膨胀率,研究了水胶比、粉煤灰掺量对限制膨胀率的影响变化规律。试验结果表明:在其他条件不变时,混凝土水胶比越大,限制膨胀率越小;掺入粉煤灰后,混凝土的限制膨胀率明显降低。By way of the experiment,the restrained-expansion rates of concrete with different water-binder ratio and fly ash were tested,and the change rule of restrained-expansion rates was studied.The results indicate：the more the water-binder ratio,the smaller the restrained-expansion rate;the restrained-expansion rate decreased apparently when added fly ash.

关 键 词：水胶比 粉煤灰 限制膨胀率 

分 类 号：TU528.042.4[建筑科学—建筑技术科学]