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烧结普通砖的产品标准自1994年7月1日由GB5101—93(以下简称—93)替代GB5101—85(以下简称—85)开始实施.GB5101—93无论从标准的形式和内容都有所改进.现以—93为主,分析其有关内容并与—85进行对比.1 分等分级—93将力学强度分为MU30、MU25、MU20、MU15、MU10、MU7.5六个强度等级,而—85分为75、100、150、200四个标号.在产品质量等级上,—93将强度等级与抗风化性能脱钩,凡抗风化性能合格的砖,按尺寸偏差、外观质量、泛霜和石灰爆裂分为优等品和合格品两个等级,优等品可用于清水墙建筑,合格品可用于混水墙建筑.—93将抗冻、吸水率和饱和系数统称为抗风化性能,较—85更科学合理.而—85是根据标号、耐久性和外观综合分为
The product standard for sintered ordinary bricks has been implemented since July 1, 1994, replaced by GB5101-85 (hereinafter referred to as -85) by GB5101-93 (hereinafter referred to as -93). GB5101-93 has been improved from the standard form and content. . Now with -93 as the main analysis of the relevant content and -85 for comparison. 1 classification -93 mechanical strength is divided into MU30, MU25, MU20, MU15, MU10, MU7.5 six intensity levels, and - 85 is divided into four labels of 75, 100, 150, 200. In the product quality grade, -93 decouples the strength grade from the anti-weathering performance, and the brick with anti-weathering performance, according to size deviation, appearance quality, pan-frost and lime The burst is divided into two grades of excellent products and qualified products. The superior products can be used in drywall construction. The qualified products can be used in mixed-wall construction.-93 The antifreeze, water absorption and saturation coefficient are collectively referred to as anti-weathering performance, more than -85. Scientific and reasonable. And -85 is based on the label, durability and appearance of the integrated