Progress on Preparation and Characteristics of Ultra-lightweight Foam Concrete

• 作者: ZHENG Juanrong ZHANG Simi ZHAO Zhenbo
• 来源期刊: 中国耐火材料（英文版）
• 年，卷（期）: 2020,（4）
• 页码范围: 1-5
• 页数: 5页
• 语种: 英文
• DOI: 10.19691/j.cnki.1004-4493.2020.04.001

摘要

With the increase in global warming,building energy saving becomes a principal policy for most countries.About 70％of the energy consumption loss of buildings is through the external walls of the buildings.Ultra-lightweight foam concretes with dry density of 150-300 kg·m-3 as the thermal insulation materials have been commercially prepared and used in building insulation engineering in China.This paper reports the raw materials and procedures for preparation of ultra-lightweight foam concretes by chemical foaming(UFC-C)and physical foaming(UFC-P).The characteristics of the air-voids structure,the mechanical properties,the water absorption,the thermal conductivity and the fire resistance of UFC-C and UFC-P were summarized in this paper.Based on existing research progress,the future research works were presented.