| EPS颗粒对超轻水泥基复合保温材料性能的影响 |
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| 引用本文： | 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. |
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| 作者姓名： | 吴子豪 王武祥 刘广东 王爱军 张磊蕾 杨俊 |
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| 作者单位： | 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 |
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| 基金项目： | 国家重点研发计划(2018YFD1101005) |
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| 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。
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| 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 |
| 收稿时间： | 2021-02-26 |
Effects of EPS Particles on Properties of Ultra-Light Cement-Based Composite Thermal Insulation Materials |
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| 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. |
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| Authors: | WU Zihao WANG Wuxiang LIU Guangdong WANG Aijun ZHANG Leilei YANG Jun |
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| Affiliation: | 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 |
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| 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. |
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| Keywords: | EPS particle ultra-light cement-based composite thermal insulation material strength thermal conductivity pore structure synergistic effect |
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