Preparation and characterization of high porosity cement-based foam material

被引：111
作者：
Sang, Guochen [1 ]
Zhu, Yiyun [1 ]
Yang, Gang [1 ]
Zhang, Haobo [1 ]
机构：
[1] Xian Univ Technol, State Key Lab Base Ecohydraul Engn Arid Area, Xian 710048, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2015年 / 91卷
基金：
中国国家自然科学基金;
关键词：
Cement-based foams; Mechanical air-entraining method; Pore structure; Porosity; Thermal conductivity; WATER-RETENTION; CONCRETE; MORPHOLOGY; AGENT;
D O I：
10.1016/j.conbuildmat.2015.05.032
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
High porosity cement-based foam materials were prepared through physical air-entraining method and the pore structure and the properties of materials were characterized. The results show that water-cement ratio and Hydroxypropyl Methyl Cellulose (HPMC) content have crucial influence on material properties. When the water-cement ratio was 0.9 and the content of HPMC was 0.4%, the cement-based foam material with the porosity of 94.33% and thermal conductivity value of 0.049 W/(m K) could be obtained. The formation mechanism of pore structure was analyzed that water-cement ratio and HPMC content affect the bubble film toughness which influence on material properties. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：133 / 137
页数：5
相关论文
共 29 条
[1]   High porosity (>90%) cementitious foams [J].
Akthar, F. K. ;
Evans, J. R. G. .
CEMENT AND CONCRETE RESEARCH, 2010, 40 (02) :352-358
[2]   Working mechanism of methyl hydroxyethyl cellulose (MHEC) as water retention agent [J].
Buelichen, D. ;
Kainz, J. ;
Plank, J. .
CEMENT AND CONCRETE RESEARCH, 2012, 42 (07) :953-959
[3]   Mechanisms of air entrainment in concrete [J].
Du, LX ;
Folliard, KJ .
CEMENT AND CONCRETE RESEARCH, 2005, 35 (08) :1463-1471
[4]  
Federation CBM, 2008, 102942008 GBT
[5]   Elliptic solution to the Young-Laplace differential equation [J].
Hernández-Baltazar, E ;
Gracia-Fadrique, J .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2005, 287 (01) :213-216
[6]   Tailoring the hierarchical pore structures in self-setting particle-stabilized foams made from calcium aluminate cement [J].
Juillerat, Franziska Krauss ;
Gonzenbach, Urs T. ;
Gauckler, Ludwig J. .
MATERIALS LETTERS, 2012, 70 :152-154
[7]   Microstructure of high-strength foam concrete [J].
Just, A. ;
Middendorf, B. .
MATERIALS CHARACTERIZATION, 2009, 60 (07) :741-748
[8]   FRACTAL MORPHOLOGY OF CEMENT FOAMS [J].
KARAM, GN ;
TONYAN, TD .
MATERIALS LETTERS, 1993, 16 (05) :278-280
[9]   The effect of foam polystyrene granules on cement composite properties [J].
Laukaitis, A ;
Zurauskas, R ;
Keriene, J .
CEMENT & CONCRETE COMPOSITES, 2005, 27 (01) :41-47
[10]   A cement based syntactic foam [J].
Li, Guoqiang ;
Muthyala, Venkata D. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 478 (1-2) :77-86
123