试验条件对新拌混凝土含气量测试值的影响  

Influence of test conditions on tested value of air content for fresh concrete

作　　者：王应斌 宋进平 党玉栋[3,4] 古源 李昕成[3,4] 曹春鹏 杨雁钦[3,4] WANG Yingbin;SONG Jinping;DANG Yudong;GU Yuan;LI Xincheng;CAO Chunpeng;YANG Yanqin(Yunnan Cloud Road Engineering Inspection Co.,Ltd.,Kunming 650000,China;School of Architectural Engineering,Kunming University of Science and Technology,Kunming 650093,China;Yunnan Key Laboratory of Building Structure and New Materials,Yunnan Institute of Building Research,Kunming 650223,China;Yunnan Quality Testing Station of Civil Engineering,Co.,Ltd.,Kunming 650223,China)

机构地区：[1]云南云路工程检测有限公司,云南昆明650000 [2]昆明理工大学建筑工程学院,云南昆明650093 [3]云南省建筑科学研究院云南省建筑结构与新材料企业重点实验室,云南昆明650223 [4]云南建筑工程质量检验站有限公司,云南昆明650223

出　　处：《混凝土》2020年第3期157-159,共3页Concrete

基　　金：云南省科技计划项目(2014RA024)。

摘　　要：研究了混凝土含气量试验中搅拌时间、静置时间、振动时间以及搅拌机充盈率对混凝土含气量试验结果的影响。结果表明,提高含气量试验条件中搅拌机的充盈率、静置时间可以降低混凝土含气量测试值;提高混凝土的搅拌时间会增加混凝土拌合物含气量测试值;而振动时间的增加会使含气量测试值呈现先增长后降低的趋势。The influence of mixing time,standing time,vibration time and filling rate of blender on air-containing of concrete mix were investigated.The results show that the increase the filling rate of blender or standing time in test conditions can reduce the test value of air-containing of concrete mix.And increasing the stirring time of concrete will increase the test value of air-containing of concrete mix.And with the extension of vibration time,the air-containing of test value of air-containing of concrete mix increase first and then decrease.

关 键 词：混凝土 混凝土含气量 搅拌工艺 

分 类 号：TU528.07[建筑科学—建筑技术科学]