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GB/T 20473-2021: Dry-mixed thermal insulating mortar for buildings
Status: Valid GB/T 20473: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 20473-2021 | English | 359 |
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4 days [Need to translate]
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Dry-mixed thermal insulating mortar for buildings
| Valid |
GB/T 20473-2021
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| GB/T 20473-2006 | English | 439 |
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3 days [Need to translate]
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Dry-mixed thermal insulating composition for buildings
| Obsolete |
GB/T 20473-2006
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PDF similar to GB/T 20473-2021
Basic data | Standard ID | GB/T 20473-2021 (GB/T20473-2021) | | Description (Translated English) | Dry-mixed thermal insulating mortar for buildings | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q25 | | Word Count Estimation | 18,129 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 20473-2021: Dry-mixed thermal insulating mortar for buildings---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.
Dry-mixed thermal insulating mortar for buildings
ICS 91.100.60
CCSQ25
National Standards of People's Republic of China
Replace GB/T 20473-2006
Building insulation mortar
Released on 2021-08-20
2022-03-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document replaces GB/T 20473-2006 "Building Insulation Mortar". Compared with GB/T 20473-2006, except for structural adjustment and editing
In addition to the sexual changes, the main technical changes are as follows.
---Modified the scope (see Chapter 1, Chapter 1 of the.2006 edition);
---Modified the technical requirements for bulk density (see 5.2, 5.2 of the.2006 edition);
---Cancel the stratification degree and increase the technical requirements for the 2h consistency loss rate (see 5.5, 5.5 in the.2006 edition);
---Modified the technical requirements for dry density and compressive strength (see Table 1, Table 1 of the.2006 edition);
---Increase the technical requirements for tensile bond strength, volumetric water absorption, and heat storage coefficient (see Table 1);
---Modified the technical requirements of softening coefficient (see 5.7.2, 5.8 in.2006 edition);
---Increase maintenance conditions and test environment (see 6.1);
---Increase numerical rounding (see 6.2);
---Modified the test method of asbestos content (see 6.5, 6.3 of the.2006 edition);
---Increase the test method of 2h consistency loss rate (see 6.7);
---The test method to increase the volumetric water absorption (see 6.10);
--- Increase the tensile bond strength test method (see Appendix D);
---Modified the compression-shear bond strength test method (see Appendix E,.2006 edition of 6.6.5);
---Modified the frost resistance test method (see Appendix F,.2006 edition of 6.7);
--- Increase the heat storage coefficient test method (see Appendix G).
This document was proposed by the China Building Materials Federation.
This document is under the jurisdiction of the National Thermal Insulation Material Standardization Technical Committee (SAC/TC191).
Drafting organizations of this document. Henan Building Materials Research and Design Institute Co., Ltd., Shanghai Jianke Inspection Co., Ltd., Zhengzhou Construction Engineering
Cheng Quality Inspection Co., Ltd., Beijing Building Materials Inspection and Research Institute Co., Ltd., Jianyan Inspection Group Co., Ltd., Henan Construction Research Institute
Research Institute Co., Ltd., Henan Yongsheng Environmental Inspection Engineering Co., Ltd., Jiangsu Shenda Inspection Co., Ltd., Shanghai Minheng Construction Inspection Research Co., Ltd.
Co., Ltd., Shanghai Pu Gong Testing Technology Co., Ltd., Henan Provincial Capital Construction Research Institute Co., Ltd., Changxing Bestbond Construction
Material Technology Co., Ltd., Henan Chengjian Inspection and Testing Technology Co., Ltd., Meichao Group Co., Ltd., Henan Xinhui Testing Technology Service
Co., Ltd., Yangjiang Dadi Environmental Protection Building Material Co., Ltd., Shandong Huabang Construction Group Co., Ltd., Fujian Zhangchenglong Construction Engineering Co., Ltd.,
Yueyang Municipal Construction Co., Ltd., China Construction Seventh Bureau (Shanghai) Co., Ltd., Fuster New Material Technology Development Co., Ltd., Shenzhen Bao
Eagle Construction Group Co., Ltd., Shenzhen Jianyi Decoration Group Co., Ltd., Dongfang Construction Group Co., Ltd., Beijing Construction Engineering New
Building materials limited liability company.
The main drafters of this document. Zhang Maoliang, Li Jianwei, Hua Zhiguo, Ma Ting, Gao Yaobin, Liu Shanshan, Xue Fei, Xu Zhenyu, Bai Zhaojun, Zhu Yue,
Lu Ruijuan, Wang Zhenhua, Chen Jianping, Li Qingshan, Qin Binghua, Li Baoqi, Jia Jinhong, Mi Jinling, Li Yongxin, Li Jing, Ma Yan, Li Guojun, Zhang Ke,
Cui Ziming, Liang Kunyue, Yu Yanfeng, Lin Hengtiao, Wan Junhui, Chen Jianguo, Liu Donghua, Wang Jianguo, Liu Haiyun, Li Xianmin, Zhang Chenghao.
This document was first published in.2006, and this is the first revision.
Building insulation mortar
1 Scope
This document specifies the classification and marking, technical requirements, test methods, inspection rules, packaging, marking and storage of building insulation mortar.
This document applies to dry-mixed mortar for building thermal insulation.
2 Normative references
The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations
Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
This document.
GB/T 191 Packaging, storage and transportation pictorial signs
GB/T 4132 Thermal insulation materials and related terms
GB/T 5486 Test Method for Inorganic Rigid Thermal Insulation Products
GB 6566 Radionuclide limits for building materials
GB/T 8170-2008 Numerical rounding rules and the expression and determination of limit values
GB 8624 Classification of burning performance of building materials and products
GB/T 10294 Determination of steady-state thermal resistance and related characteristics of thermal insulation materials. Protective hot plate method
GB/T 10295 Determination of steady-state thermal resistance and related characteristics of thermal insulation materials by calorimeter method
GB/T 10297 Determination of thermal conductivity of non-metallic solid materials by hot wire method
GB/T 12954.1-2008 Construction adhesive test method Part 1.Ceramic tile adhesive test method
GB/T 33395 Determination of asbestos in paint
BB/T 0065 dry mixed mortar packaging bag
JG244 mixer for concrete test
JGJ/T 12-2019 Technical Standard for Lightweight Aggregate Concrete Application
JGJ/T 70 Standard for basic performance test method of building mortar
3 Terms and definitions
The following terms and definitions defined in GB/T 4132 apply to this document.
3.1
A dry-mix mortar made of expanded perlite, vitrified microbeads, expanded vermiculite, etc. as aggregates, mixed with cementitious materials and other functional components.
4 Classification and marking
4.1 Classification
The products are divided into type Ⅰ and type Ⅱ according to their performance.
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