GB/T 2542-2012 English PDF

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GB/T 2542-2012: Test methods for wall bricks
Status: Valid

GB/T 2542: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 2542-2012	489	Add to Cart	4 days	Test methods for wall bricks	Valid
GB/T 2542-2003	799	Add to Cart	5 days	Test methods for wall bricks	Obsolete
GB/T 2542-1992	639	Add to Cart	5 days	Test methods for wall bricks	Obsolete

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Basic data

Standard ID: GB/T 2542-2012 (GB/T2542-2012)
Description (Translated English): Test methods for wall bricks
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Q15
Classification of International Standard: 91.100.15
Word Count Estimation: 21,214
Older Standard (superseded by this standard): GB/T 2542-2003
Quoted Standard: GB/T 18968; GB/T 25044; GB/T 25183
Regulation (derived from): National Standards Bulletin No. 41 of 2012
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the terms and definitions wall bricks, size, appearance, flexural strength, compressive strength, freezing and thawing, bulk density, lime burst, efflorescence, water absorption and saturation coefficient, porosity and pore structu

GB/T 2542-2012: Test methods for wall bricks

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS91.100.15 Q15 National Standards of People's Republic of China Replacing GB/T 2542-2003 Test methods for wall puzzle Issued on. 2013-09-01 2012-12-31 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 Measure 1 Appearance quality inspection 5 2 6 flexural strength test 4 7 5 compressive strength test 8 8 freeze-thaw test 9 9 bulk density test 10 10 Lime Burst Test Efflorescence test 10 11 12 and saturated water absorption coefficient test 11 13 Determination of porosity and pore structure 12 14 drying shrinkage test 13 Carbonation test 15 15 Softening test 16 17 17 17 Test Report

Foreword

This standard rule according to GB/T 1.1-2009 given draft. This standard replaces GB/T 2542-2003 "Test methods for wall bricks." This standard and GB/T 2542-2003 compared to the main changes are as follows. --- Updated the compressive strength test method; --- Some provisions refined narrative; --- Clear the number of samples for each test item; --- Canceled radioactive, heat transfer coefficient detection methods; --- Increasing the softening test detection method. The standard proposed by China Building Materials Federation. This standard by the national wall, roof and road construction materials Standardization Technical Committee (SAC/TC285) with centralized. This standard is drafted by. Xi'an Wall Materials Research and Design Institute, China Building Materials Certification & Inspection Group Co., Ltd. in Xi'an. Participated in the drafting of this standard. Xiang Xin Nanjing New Building Materials Co., Ltd., Guizhou Province Building Materials Quality Supervision and Inspection Institute. The main drafters of this standard. Wang Bo, Pei Yan, Li Zheng, Zhou Xuan, Cheng Wei phase, Wang Jun, Jiangde Yong, Xia Lina Zhou Wan Ning Cai Xiaobing, Lu new. This standard replaces the standards previously issued as follows. --- GB 2542-1981; --- GB/T 2542-1992; --- GB/T 2542-2003. Test methods for wall puzzle

1 Scope

This standard specifies the terms and definitions wall bricks, size, appearance quality, flexural strength, compressive strength, freezing and thawing, bulk density, lime burst, Efflorescence, water absorption and saturation coefficient, porosity and pore structure, drying shrinkage, carbonation test methods, softened. This standard applies to masonry brick.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated edition applies to this article Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 18968 wall material terms GB/T 25044 compressive strength of masonry brick sample preparation equipment General requirements GB/T 25183 wall bricks compressive strength test grout material

3 Terms and Definitions

GB/T 18968 defined terms and definitions apply to this document.

4 Measure

Measuring 4.1 Brick with a caliper (Figure 1), dividing the value of 0.5mm. 1 --- vertical feet; 2 --- feet. Figure 1 Brick with a caliper 4.2 Measurement Methods Length should be separately measured in two dimensions at the middle of two Omo brick; width should be measured separately in two Omo two middle bricks One size; height should be measured separately in the middle of the two surfaces and the two dimensions shown in Figure 2. When measured at a defective or projections when available. Next to measure, but it should be in a negative side. Accurate to 0.5mm. ......

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