GB/T 4111-2013 in English

《GB/T 4111-2013混凝土砌块和砖试验方法》由TC285（全国墙体屋面及道路用建筑材料标准化技术委员会）归口，主管部门为中国建筑材料联合会。
本标准规定了混凝土砌块和混凝土多孔(空心)砖的术语和定义、尺寸偏差、外观质量、抗压强度、抗折强度、块体密度、空心率、含水率、吸水率、相对含水率、干燥收缩值、软化系数、碳化系数、抗冻性和抗渗性的试验方法。
本标准适用于建筑工程用的混凝土小型空心砌块、混凝土实心砌块和混凝土多孔(空心)砖;水利、交通、市政等构筑物用混凝土砌块(砖)可参照执行。

This standard specifies the terms and definitions, dimensional deviation, appearance quality and test methods for compression strength, breaking strength, block density, hollow ratio, water content, water absorption, relative water content, drying shrinkage value, softening coefficient, carbonization coefficient, frost resistance and impermeability of the concrete block and concrete perforated (hollow) brick.
This standard is applicable to small concrete hollow block, concrete solid block and concrete perforated (hollow) brick used for construction engineering (hereinafter referred to as blocks), and can provide reference for the concrete block (brick) used for water conservancy, traffic and municipal structures.

Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Dimensional Deviation and Appearance Quality
5 Compression Strength
6 Breaking Strength
7 Block Density and Hollow Ratio
8 Water Content, Water Absorption and Relative Water Content
9 Drying Shrinkage Value
10 Softening Coefficient
11 Carbonization Coefficient
12 Frost Resistance
13 Impermeability
14 Test Report
Appendix A (Normative) Test Method for Standard Compression Strength of Blocks
Appendix B (Normative) Compression Strength Test Method of Blocks (Coring Method)
Appendix C (Informative) Reference Mix Ratio of Cement Mortar for Specimen Plastering and Leveling