材料导报 2021, Vol. 35 Issue (z2): 200-204
无机非金属及其复合材料
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基于孔结构的蒸压加气混凝土的冻融循环耐久性试验研究
梁晓前1 , 黄榜彪1 , 黄秉章2 , 杨雷铭1 , 孙文贤1 , 林通敏1 , 任志强1 , 李有的1 , 刘灏1
1 广西科技大学,柳州 545006 2 柳州工学院,柳州 545616
Experimental Study on Freeze-thaw Cycle Durability of Autoclaved Aerated Concrete Based on Pore Structure
LIANG Xiaoqian1 , HUANG Bangbiao1 , HUANG Bingzhang2 , YANG Leiming1 , SUN Wenxian1 , LIN Tongmin1 , REN Zhiqiang1 ,LI Youdi1 , LIU Hao1
1 Guangxi University of Science and Technology,Liuzhou 545006, China 2 Liuzhou Institute of Technology,Liuzhou 545616, China
摘要 为证明混凝土的毛细吸水系数可以作为其抗冻性能的表现形式,本工作通过蒸压加气混凝土和普通混凝土的冻融循环试验,共三组试件:B07、B08、C40普通混凝土,分别对其进行吸水率和毛细吸水系数的测定以及5次、15次、30次冻融循环试验,研究孔结构对混凝土抗冻性能的影响,通过数据分析和微观分析得出的结果:孔的数量越多,毛细吸水系数越大,在相同冻融循环情况下质量损失率、强度损失率越大,抗冻性能越差,证明了这一说法的可行性,为混凝土的应用提供了可靠的性能研究理论。
关键词:
加气混凝土
冻融循环
孔结构
抗冻性能
Abstract: In order to prove that the capillary water absorption coefficient of concrete can be used as the performance form of its anti-freezing perfor-mance, this work adopts the freeze-thaw cycle test of autoclaved aerated concrete and ordinary concrete. There are three sets of specimens: B07, B08 and C40 ordinary concrete. Carry out the deter mination of water absorption and capillary water absorption coefficient and 5, 15, 30 freeze-thaw cycle tests to study the influence of pore structure on the frost resistance of concrete. The results obtained through data analysis and microscopic analysis: the more the number of holes, the greater the capillary water absorption coefficient, the greater the mass loss rate and strength loss rate under the same freeze-thaw cycle, the worse the frost resistance, which proves the feasibility of this statement and provides a reliable performance research theory for the application of concrete.
Key words:
aerated concrete
freeze-thaw cycle
pore structure
frost resistance
发布日期: 2021-12-09
基金资助: 国家教育部虚拟仿真教学项目(教高函〔2019〕6号);广西重点研发计划项目(桂科AB16380341;桂科AB17129024);广西科技基地和人才专项(桂科AD18050006);柳州市科技局科技攻关项目(2020GBGA0401;2020GBGA0402);广西高校中青年教师基础能力提升项目(2018KY0880)
通讯作者:
752359768@qq.com
作者简介: 梁晓前,2015年毕业于广西科技大学,随后继续在广西科技大学攻读硕士学位,导师为黄榜彪,主要研究方向为材料工程和装配式建筑。 黄榜彪,二级教授,广西科技大学土木建筑工程学院硕导,2007年毕业于北京工业大学并取得工程硕士学位。工作至今主持完成省市级科研项目30多项,获广西科学技术进步奖三等奖2项,柳州市科学进步奖多项。主要研究方向为材料工程和装配式建筑。
引用本文:
梁晓前, 黄榜彪, 黄秉章, 杨雷铭, 孙文贤, 林通敏, 任志强, 李有的, 刘灏. 基于孔结构的蒸压加气混凝土的冻融循环耐久性试验研究[J]. 材料导报, 2021, 35(z2): 200-204.
LIANG Xiaoqian, HUANG Bangbiao, HUANG Bingzhang, YANG Leiming, SUN Wenxian, LIN Tongmin, REN Zhiqiang,LI Youdi, LIU Hao. Experimental Study on Freeze-thaw Cycle Durability of Autoclaved Aerated Concrete Based on Pore Structure. Materials Reports, 2021, 35(z2): 200-204.
链接本文:
http://www.mater-rep.com/CN/
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http://www.mater-rep.com/CN/Y2021/V35/Iz2/200
1 陶有生.砖瓦,2014(2),25. 2 代德伟,刘京丽,王钰.混凝土世界,2013(4),30. 3 徐华茂.技术与市场,2016,23(11),128. 4 李金玉. 水工混凝土耐久性的研究和应用,中国电力出版社,2004. 5 肖逸夫,梁建国,王涛.砖瓦,2013(04),34. 6 王松.蒸压加气混凝土砌块的抗冻性研究.硕士学位论文,长沙理工大学,2015. 7 曹峰,吴玉清,王菊琳.科学技术与工程,2019,19(22),286. 8 郭秋生.工业建筑,2020,50(3),119.
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