［摘要］从蒸压加气混凝土成型机理及基本特性出发，对《墙体材料应用统一技术规范》（GB50574—2010）中有关蒸压加气混凝土砌块的吸水率、收缩性能与抗压强度三者之间的关系、碳化系数、软化系数、抗冻性指标、抗酸侵蚀性以及自承重墙中蒸压加气混凝土砌块最低强度等级要求等提出了一些看法。指出规范GB50574中存在碳化系数、软化系数、抗冻性指标要求偏高，而最低强度等级要求偏低的问题，同时提出了相关的建议。
［关键词］蒸压加气混凝土砌块； 碳化系数； 软化系数； 抗冻性指标； 最低强度等级
中图分类号：TU375.6文献标识码：A文章编号：1002-848X(2011)10-0130-05
Several opinions and suggestions on the provisions about AAC blocks involved in Uniform technique code for wall materials used in buildings
Huang Zhaoming1, 2, Yuan Yufei1,3, Wen Ziyun1 (1 College of Material Science and Engineering, South China University of Technology, Key Laboratory of Specially Functional Ministry of Education, Guangzhou 510640, China；2 Zhongshan Architecture Design Institute Co., Ltd.,  Zhongshan 528400, China; 3 Guangzhou Municipal Engineering Maintenance Department, Guangzhou 510100, China)
Abstract:In the light of forming mechanism and basic characteristics of autoclaved aerated concrete(AAC) blocks, some point of views on Uniform technique code for wall materials used in buildings(GB50574—2010) were put forward, concerning the  relations between water absorption, shrinkage performance and compressive strength, as well as the indexes of carbonization coefficient, softening coefficient, frost-resistance, the acid erosion-resistance and the minimum strength grade of AAC blocks used on non-load-bearing walls. It is presented that the required indexes of carbonization coefficient, softening coefficient and frost\|resistance seem to be high value in code GB50574, while the requirements of minimum strength grade are too low. At the same time, several relational suggestions were proposed.
Keywords:AAC blocks; carbonization coefficient; softening coefficient; frost resistance index; minimum strength grade
作者简介：黄照明，博士研究生，高级工程师，一级注册结构工程师，Email：hzm818@126.com。
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