GB/T 29756-2013 English PDF

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GB/T 29756-2013: Test methods of physical property for dry-mix mortar
Status: Valid

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Basic data

Standard ID: GB/T 29756-2013 (GB/T29756-2013)
Description (Translated English): Test methods of physical property for dry-mix mortar
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Q11
Classification of International Standard: 91.100.10
Word Count Estimation: 26,243
Quoted Standard: GB 175; GB/T 3810.5-2006; GB/T 17671-1999; JC/T 681; JC/T 723; JC/T 726; JC/T 958
Regulation (derived from): National Standards Bulletin No. 18 of 2013
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: dry mortar organic content, fresh mortar consistency (table method), the density of fresh mortar, mortar fresh air content, compressive strength of hardened mortar flexural hardened mortar water absorption, tensile sticky hardened

GB/T 29756-2013: Test methods of physical property for dry-mix mortar

---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.
Test methods of physical property for dry-mix mortar ICS 91.100.10 Q11 National Standards of People's Republic of China Physical performance test method mortar dry mix Issued on. 2013-09-18 2014-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ Introduction Ⅳ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 a standard test conditions 5 Sample preparation 1 6 1 dry mortar organic content 7 fresh mortar consistency (jump tables Act) 2

8 fresh mortar density

9 fresh mortar air content 5 10 flexural compressive strength of hardened mortar 7 11 hardened mortar water absorption 7 12 hardened mortar tensile bond strength 9 13 lateral deformation hardening mortar 10 14 hardened mortar shrinkage 14 Appendix A (normative) containing 16 gas analyzer calibration Appendix B (normative) Concrete slab 17 Annex C (normative) mortar failure mode 20

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard proposed by China Building Materials Federation. This standard by the National Standardization Technical Committee cement (SAC/TC184) centralized. This standard is drafted by. China Building Material Test Certification Center, China Building Materials Academy. Participated in the drafting of this standard. Dow Chemical (China) Co., Ltd., Shenzhen Academy of Building Research Co., Ltd. Shenzhen Hirota Decoration Group Co., Ltd. Tianjin Yu Chuan dry mortar, Guangdong natural Tu Chemical Co., Ltd., Shanghai Qi-resistant building materials Co., Beijing industry university. The main drafters. Zhang Danwu, Qiaoya Ling, Liu Chen, Jiang Lizhen, tensor, Anna, make Wei Guan, Zhang Jie, Li Yuhai, Li Shaojiang, Sun Mei, Libo Xian, Chen Ying children, Lanming Zhang, Yang Yi, Huang Qinglin. This standard is the first release.

Introduction

Dry mortar is a component of the cement, aggregates or dried powder, additives and other professional production plant by a certain percentage in a metered mixture of mixed Compound at the point of use to scale mixing with water or other components use. Usually mainly used for masonry, plaster, tile adhesives, building insurance Temperature, surface or wall leveling, waterproofing, repair, decoration. Our dry mix mortar industry began to develop rapidly in the late 1990s, a wide range of products, including exterior insulation adhesive sand Pulp and surface mortar, ceramic tile adhesives and grouts, self-leveling the ground with cement-based mortar, facing the wall with mortar. Currently, the Bank Industry no universal test method conducted and summarized, in order to facilitate R & D staff in this new class of materials for scientific Judgment and innovation, while reducing product standards when writing repeated description of test methods, reference materials home and abroad, the preparation of this standard. Physical performance test method mortar dry mix

1 Scope

This standard specifies the dry mortar organic matter content, fresh mortar consistency (jump tables Act), fresh mortar density, air content of fresh mortar, hardening Flexural and compressive strength of hardened mortar water absorption, tensile bond strength of hardened mortar, mortar lateral deformation hardening and hardening mortar shrinkage Physical performance test method. This standard applies to the determination of the dry mix mortar relevant physical properties.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB 175 Common Portland Cement GB/T 3810.5-2006 Test methods of ceramic tiles - Part 5. Determination of coefficient of restitution brick impact resistance GB/T 17671-1999 cement mortar strength test method (ISO method) (idt ISO 679. 1989) JC/T 681 planetary cement mortar mixer JC/T 723 cement mortar shaker JC/T 726 cement mortar test mode JC/T 958 cement mortar fluidity tester (jump tables)

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Lateral deformation transversedeformation Shaped hardening mortar predetermined size by three-point bending load, specimen damage occurred before the maximum displacement.

4 Standard test conditions

Laboratory standard test conditions. temperature (23 ± 2) ℃, relative humidity (50 ± 5)%, wind speed cyclic test area less than 0.2m/s.

5 Sample preparation

Test materials (including water) should be placed under standard test conditions more than 24h.

6 dry mortar organic content

6.1 Principle The dry mortar after a specified high temperature burning, calculated as a percentage of volatile organic content of the mortar. ......

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