EPS颗粒对超轻水泥基复合保温材料性能的影响

硅酸盐通报 ›› 2021, Vol. 40 ›› Issue (8): 2527-2533.

EPS颗粒对超轻水泥基复合保温材料性能的影响

吴子豪¹, 王武祥^1,2, 刘广东³, 王爱军¹, 张磊蕾^1,2, 杨俊¹

1.中国建筑材料科学研究总院有限公司,北京 100024;
2.绿色建筑材料国家重点实验室,北京 100024;
3.焦作朝钦节能建材股份有限公司,焦作 454950

收稿日期:2021-02-26 修回日期:2021-04-08 出版日期:2021-08-15 发布日期:2021-09-02
通讯作者: 王武祥,教授级高工。E-mail:wangwuxiang@126.com
作者简介:吴子豪(1996—),男,硕士研究生。主要从事墙体保温材料方面的研究。E-mail:wuzihao319@163.com
基金资助:
国家重点研发计划(2018YFD1101005)

Effects of EPS Particles on Properties of Ultra-Light Cement-Based Composite Thermal Insulation Materials

WU Zihao¹, WANG Wuxiang^1,2, LIU Guangdong³, WANG Aijun¹, ZHANG Leilei^1,2, YANG Jun¹

1. China Building Materials Academy, Beijing 100024, China;
2. The State Key Laboratory of Green Building Materials, Beijing 100024, China;
3. Jiaozuo Chaoqin Energy Saving Building Materials Co., Ltd., Jiaozuo 454950, China

Received:2021-02-26 Revised:2021-04-08 Online:2021-08-15 Published:2021-09-02

摘要/Abstract

摘要： 聚苯乙烯泡沫塑料颗粒(EPS颗粒)作为水泥基复合保温材料的超轻骨料,对水泥基复合保温材料力学性能、热工性能影响显著。以水泥为胶凝材料,EPS颗粒、混合材、泡沫剂和改性剂、水等为主要原料,采用物理发泡工艺制备干表观密度不大于120 kg/m³的超轻水泥基复合保温材料(UCIM)。通过设计不同体积掺量的EPS颗粒,分析EPS颗粒掺量对泡沫混凝土基体孔结构、超轻水泥基复合保温材料强度和热工性能的影响规律。结果表明,适宜掺量EPS颗粒可显著提高超轻水泥基复合保温材料抗压强度和抗拉强度,并确保超轻水泥基复合保温材料具有良好的热工性能,即通过EPS颗粒与泡沫混凝土基体的协同作用,协调力学性能和热工性能,制备出高性能超轻水泥基复合保温材料。

关键词: EPS颗粒, 超轻水泥基复合保温材料, 强度, 导热系数, 孔结构, 协同作用

Abstract: EPS particles as the ultra-light aggregate of cement-based composite thermal insulation materials have a significant effect on the mechanical and thermal properties of cement-based composite thermal insulation materials. In this paper, the cement as cementing material, EPS particles, mixes, foams and modifiers, water and other as the main raw materials,ultra-light cement-based composite thermal insulation materials (UCIM) with dry apparent density less than 120 kg/m³ were prepared by physical foaming process. Through the design of different volume of EPS particles, the effect of the EPS particlescontent on the foamed concrete matrix pore structure, the strength and thermal performance of ultra-light cement-based composite thermal insulation materials was analyzed. The results show that the appropriate mix content of EPS particles significantly improves the compressive strength and tensile strength of ultra-light cement-based composite thermal insulation materials, and ensures that ultra-light cement-based composite thermal insulation materials have a good thermal performance. Through the synergistic effect of EPS particles and foamed concrete matrix, the mechanical properties and thermal properties are coordinated, and ultra-light cement-based composite thermal insulation materials with high performance are prepared.

Key words: EPS particle, ultra-light cement-based composite thermal insulation material, strength, thermal conductivity, pore structure, synergistic effect

中图分类号:

TU528.2

吴子豪, 王武祥, 刘广东, 王爱军, 张磊蕾, 杨俊. EPS颗粒对超轻水泥基复合保温材料性能的影响[J]. 硅酸盐通报, 2021, 40(8): 2527-2533.

WU Zihao, WANG Wuxiang, LIU Guangdong, WANG Aijun, ZHANG Leilei, YANG Jun. Effects of EPS Particles on Properties of Ultra-Light Cement-Based Composite Thermal Insulation Materials[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(8): 2527-2533.

参考文献

[1] 张磊蕾,王武祥.泡沫混凝土的研究进展及应用[J].建筑砌块与砌块建筑,2010(1):38-42+15.
ZHANG L L, WANG W X. Research progress and application of foamed concrete[J]. Building Block & Block Construction, 2010(1): 38-42+15 (in Chinese).
[2] 中国建筑材料科学研究总院有限公司.泡沫混凝土自保温砌块:JC/T 2550—2019[S].北京:中国建材工业出版社,2020.
China Building Materials Academy. Foamed concrete self-insulation block: JC/T 2550—2019[S]. Beijing: China Building Materials Industry Press, 2020 (in Chinese).
[3] 鲁永明,何纯涛,信会鹏,等.现浇泡粒混凝土的配制及其性能研究[J].混凝土,2014(6):147-150.
LU Y M, HE C T, XIN H P, et al. Preparation of foamed particle concrete and study of its performance[J]. Concrete, 2014(6): 147-150 (in Chinese).
[4] 朱丽娟.泡粒混凝土研究发展综述[J].混凝土,2017(2):158-160.
ZHU L J. Review on research and development of foam concrete[J]. Concrete, 2017(2): 158-160 (in Chinese).
[5] 王炳希.聚苯颗粒泡沫混凝土的性能实验研究与应用[D].沈阳:沈阳建筑大学,2017:19-25.
WANG B X. Property research and use of polystyrene particles foam concrete[D]. Shenyang: Shenyang Jianzhu University, 2017: 19-25 (in Chinese).
[6] 陈志纯,李应权,扈士凯,等.我国聚苯乙烯颗粒泡沫混凝土发展现状[J].混凝土世界,2018(4):26-28.
CHEN Z C, LI Y Q, HU S K, et al. Development status of polystyrene particle foam concrete in China[J]. China Concrete, 2018(4): 26-28 (in Chinese).
[7] 杨奉源,卢忠远,何顺爱,等.超轻EPS复合泡沫混凝土性能研究[J].混凝土与水泥制品,2012(5):9-12.
YANG F Y, LU Z Y, HE S A, et al. Research on properties of ultra-light EPS composite foamed concrete[J]. China Concrete and Cement Products, 2012(5): 9-12 (in Chinese).
[8] CHEN Y P, TAO W H, FU X H, et al. Study on preparation and properties of vitrified beads-polystyrene particles insulation mortar[J]. Applied Mechanics and Materials, 2014, 538: 3-6.
[9] 李坤.热固型EPS复合保温板的试验研究[D].鞍山:辽宁科技大学,2019:41-50.
LI K. Experimental study on thermoset EPS composite insulation board[D]. Anshan: University of Science and Technology Liaoning, 2019: 41-50 (in Chinese).
[10] 张旭,王武祥,杨鼎宜,等.超轻泡沫混凝土孔结构调控措施研究[J].硅酸盐通报,2019,38(7):2255-2259+2267.
ZHANG X, WANG W X, YANG D Y, et al. Study on control measures of pore structure of ultra light foam concrete[J]. Bulletin of the Chinese Ceramic Society, 2019, 38(7): 2255-2259+2267 (in Chinese).
[11] 张磊蕾.泡沫混凝土的组成与性能、微结构的研究[D].北京:中国建筑材料科学研究总院有限公司,2011:53-58.
ZHANG L L. Research on the structure, properties and microstructure of foamed concrete[D]. Beijing: China Building Materials Academy, 2011: 53-58 (in Chinese).
[12] 张旭,王武祥,杨鼎宜,等.超轻泡沫混凝土孔结构和抗压强度的相关性研究[J].墙材革新与建筑节能,2019(2):21-25.
ZHANG X, WANG W X, YANG D Y, et al. Research on the correlation between pore structure and compressive strength of ultra-light foamed concrete[J]. Construction Wall Innovation & Building Energy-Saving, 2019(2): 21-25 (in Chinese).
[13] 王静文,王伟.玄武岩纤维增强泡沫混凝土响应面多目标优化[J].材料导报,2019,33(24):4092-4097.
WANG J W, WANG W. Response surface based multi-objective optimization of basalt fiber reinforced foamed concrete[J]. Materials Reports, 2019, 33(24): 4092-4097 (in Chinese).
[14] LAUKAITIS A, ŽURAUSKAS R, KERIEN J. The effect of foam polystyrene granules on cement composite properties[J]. Cement and Concrete Composites, 2005, 27(1): 41-47.
[15] 肖力光,邢纹浩.高性能蒸压加气混凝土砌体与混凝土中柱间热桥效应的研究[J].新型建筑材料,2020,47(11):1-4+8.
XIAO L G, XING W H. Research on thermal bridge effect between the high-performance autoclaved aerated concrete masonry and concrete center column[J]. New Building Materials, 2020, 47(11): 1-4+8 (in Chinese).