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Relationship between properties and pore structure offoamed lightweight concrete(PDF)


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Relationship between properties and pore structure offoamed lightweight concrete
Hu Yanli1Hao Jin’gao2Zhao Xiangmin2Peng Hailong2Yang Weibo1Gao Peiwei1
1.Department of Civil Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China; 2.Communication Plan Survey and Design Institute of Shanxi Province,Taiyuan 030012,China
foamed lightweight concrete pore structure compressive strength water-binder ratio porosity
The relationship between porosity and compressive strength of foamed mixture lightweight concrete with different density and water-binder ratio is investigated for foamed mixture lightweight concrete of 600 kg/cm3 and 800 kg/cm3 densities for engineering fields. The results show that the average pore size of foamed lightweight concrete increases with increasing water-binder ratio; the average pore size of foamed lightweight concrete decreases with increasing density grade,and the average pore size changes about 24.5%~25.4%,and the porosity changes about 2.8%~16.6% with the density grade of foamed lightweight concrete increasing from 600 kg/cm3 to 800 kg/cm3; the compressive strength of the foamed lightweight concrete increases with increasing water-binder ratio,and then decreases.


[1] 孙亚飞,耿飞,高培伟,等. 掺聚丙烯纤维泡沫混凝土性能与仿真分析[J]. 南京理工大学学报,2016,40(4):504-508.
Sun Yafei,Geng Fei,Gao Peiwei,et al. Properties and simulation analysis of foamed concrete with polypropylene fiber[J]. Journal of Nanjing University of Science and Technology,2016,40(4):504-508.
[2]Wee T,Daneti S,Tamilselvan T. Effect of w/c ratio on air-void system of foamed concrete and their influence on mechanical properties[J]. Magazine of Concrete Research,2011,63(8):583-595.
[3]Sun Yafei,Gao Peiwei,Geng Fei,et al. Thermal conductivity and mechanical properties of porous concrete materials[J]. Materials Letters,2017,209:349-352.
[4]Hwang C,Tran V. A study of the properties of foamed lightweight aggregate for self-consolidating concrete[J]. Construction & Building Materials,2015,87:78-85.
[5]Gao Peiwei,Lu Xiaoling,Yang Chuanxi,et al. Microstructure and pore structure of concrete mixed with superfine phosphorous slag and superplasticizer[J]. Construction & Building Materials,2008,22(5):837-840.
[6]Nguyen T,Bui H,Ngo T,et al. Experimental and numerical investigation of influence of air-voids on the compressive behaviour of foamed concrete[J]. Materials & Design,2017,130:103-119.
[7]习雨同. 泡沫混凝土气孔结构与性能研究[D]. 南京:南京航空航天大学航空学院,2016.
[8]Hilal A,Thom N,Dawson A. On entrained pore size distribution of foamed concrete[J]. Construction & Building Materials,2015,75:227-233.
[9]Nambiar E,Ramamurthy K. Air-void characterisation of foam concrete[J]. Cement & Concrete Research,2007,37(2):221-230.
[10]Liu Zhongwei,Zhao Kang,Hu Chi,et al. Effect of water-cement ratio on pore structure and strength of foam concrete[J]. Advances in Materials Science and Engineering,2016,2016:1-9.
[11]Sang Guochen,Zhu Yiyun,Yang Gang,et al. Influence of water-cement ratio on property of light weight cement based foam material[J]. Journal of Materials Science and Engineering,2015,33(3):339-342.
[12]GB 175-2007,通用硅酸盐水泥[S].
[13]GB/T 1596-2005,用于水泥和混凝土中的粉煤灰[S].
[14]Abd A,Abd S. Modelling the strength of lightweight foamed concrete using support vector machine(SVM)[J]. Case Studies in Construction Materials,2017,6:8-15.
[15]Jiang Jun,Lu Zhongyuan,Niu Yunhui,et al. Study on the preparation and properties of high-porosity foamed concretes based on ordinary Portland cement[J]. Materials & Design,2016,92:949-959.


Last Update: 2019-06-30