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GB/T 11968-2020: Autoclaved aerated concrete blocks
Status: Valid GB/T 11968: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 11968-2020 | English | 249 |
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3 days [Need to translate]
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Autoclaved aerated concrete blocks
| Valid |
GB/T 11968-2020
|
| GB 11968-2006 | English | 359 |
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3 days [Need to translate]
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[GB/T 11968-2006] Autoclaved aerated concrete blocks
| Obsolete |
GB 11968-2006
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| GB/T 11968-1997 | English | 359 |
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3 days [Need to translate]
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Autoclaved aerated concrete blocks
| Obsolete |
GB/T 11968-1997
|
| GB 11968-1989 | English | 319 |
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3 days [Need to translate]
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Autoclaved aerated concrete blocks
| Obsolete |
GB 11968-1989
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PDF similar to GB/T 11968-2020
Basic data | Standard ID | GB/T 11968-2020 (GB/T11968-2020) | | Description (Translated English) | Autoclaved aerated concrete blocks | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q14 | | Classification of International Standard | 91.100.30 | | Word Count Estimation | 13,162 | | Date of Issue | 2020-09-29 | | Date of Implementation | 2021-08-01 | | Older Standard (superseded by this standard) | GB/T 11968-2006 | | Regulation (derived from) | National Standard Announcement No. 20 of 2020 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 11968-2020: Autoclaved aerated concrete blocks---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.
Autoclaved aerated concrete blocks
ICS 91.100.30
Q14
National Standards of People's Republic of China
Replace GB/T 11968-2006
Autoclaved aerated concrete block
2020-09-29 released
2021-08-01 implementation
State Administration for Market Regulation
Issued by the National Standardization Management Committee
Table of contents
Foreword Ⅰ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Classification, specifications and marking 2
5 Raw materials 2
6 Requirements 2
7 Inspection method 4
8 Inspection rules 7
9 Storage and transportation 8
10 Product quality certificate 8
Appendix A (Normative Appendix) Size effect coefficient of compressive strength of autoclaved aerated concrete block 10
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 11968-2006 "Autoclaved Aerated Concrete Blocks", compared with GB/T 11968-2006, except for editorial revisions
The main technical changes of the external change are as follows.
---The block grade is deleted (see 4.3 in the.2006 edition);
---Added product classification, divided into type I and type II, and size deviation and appearance quality requirements (see 4.1.1, 6.1 and 6.2);
---Deleted A7.5, A10.0 intensity level and B08 dry density level (see 4.2 in the.2006 edition);
--- Modified the classification based on compressive strength and dry density to classification based on compressive strength (see 6.3, 6.2, 6.3 and 6.4 of the.2006 edition);
--- Modified the regulations on sampling batches for factory inspection (see 8.2.2.1, 8.2.2.1 of the.2006 edition).
This standard was proposed by the China Building Materials Federation.
This standard is under the jurisdiction of the National Cement Products Standardization Technical Committee (SAC/TC197).
Drafting organizations of this standard. China Aerated Concrete Association, Tongji University, Zhejiang Kaiyuan New Wall Material Co., Ltd., Nanjing Xujian New
Building Materials Co., Ltd., Changxing Yitong Co., Ltd., Anhui Keda Electromechanical Co., Ltd., Huzhou Huineng New Material Technology Co., Ltd., Guangzhou Development
Zhan Environmental Protection Building Material Co., Ltd., Shan Dongjing Bo Environmental Protection Material Co., Ltd., Zhejiang Yuanzhu Housing Industrialization Co., Ltd., Tianjin Building Material Production
Quality Supervision and Testing Center, Jiangsu Ningguo Wear-resistant Materials Co., Ltd., Zhoushan Quality and Technical Supervision and Testing Institute, Zhoushan Hongye Environmental Protection Materials
Materials Co., Ltd., Zhejiang Tianda Environmental Protection Co., Ltd., Fujian Qunfeng Machinery Co., Ltd., Jiangshan Tianshun Building Material Co., Ltd., Changzhou Construction
Building Materials Research Institute Co., Ltd., Zhejiang Hangjia Zetong Building Energy-saving New Materials Co., Ltd., Zigui County Runchu New Building Materials Co., Ltd.,
Yunfu Beirong Building Material Co., Ltd., Guangxi Lulin Building Material Technology Co., Ltd., Zhejiang Dexin New Material Co., Ltd., Yanshi Huatai Comprehensive
Co-utilization Building Materials Co., Ltd., Zhejiang Architectural Design and Research Institute Co., Ltd., Shaanxi Ningyuan New Material Technology Co., Ltd., Changzhou
Jiangshan New Building Materials Co., Ltd., Zhejiang Fengzhong Building Material Technology Co., Ltd., Guangxi Construction Engineering Group Construction Industry Investment Co., Ltd.
Company, Zhejiang Hengzun New Material Technology Co., Ltd., Hubei Chufeng Construction Technology Group Jingzhou Kaiyuan New Material Co., Ltd.
The main drafters of this standard. Jiang Yong, Su Yufeng, Cheng Caiyuan, Lu Jie, Chen Hongping, Deng Suping, Yang Yongquan, Chen Xinjiang, He Tieming, Lai Shaozhong,
Cai Ke, Zhou Jianguo, Wang Mingjun, Liu Yi, Zhang Song, Ren Xiande, Bai Xiqing, Wang Qiang, Tian Senyue, Li Cunjun, Wang Quansheng, Xu Qinghui, Deng Yuewei,
Zhang Benjian, Wang Hong, Dai Xiaojun, Xiong Haidong, Zhang Xiaohai, Liu Yangguo, Cai Xiayang, He Zhiang, Liu Yang, Chen Haiming, Ma Yingjie, Li Wenzhi, Huang Hong,
Wu Kai, Zhang Hui, Zhang Yexin, Sun Zhengyi, Hu Rong, Zhu Ruisheng.
The previous versions of the standard replaced by this standard are as follows.
---GB 11968-1989, GB/T 11968-1997, GB/T 11968-2006.
Autoclaved aerated concrete block
1 Scope
This standard specifies the classification, specifications and markings, raw materials, requirements, inspection methods, inspection rules, storage and marking of autoclaved aerated concrete blocks.
Transport and product quality certificates.
This standard applies to autoclaved aerated concrete blocks used in civil and industrial buildings.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB 175 General Portland Cement
GB/T 2085.2 Aluminum powder Part 2.Ball milled aluminum powder
GB/T 5483 Natural gypsum
GB 6566 Radionuclide limits for building materials
GB/T 10294 Determination of steady-state thermal resistance and related characteristics of thermal insulation materials. Protective hot plate method
GB/T 11969 Test method for performance of autoclaved aerated concrete
GB/T 37785 Gypsum for flue gas desulfurization
JC/T 407 Aluminum powder paste for aerated concrete
JC/T 409 Fly Ash for Silicate Building Products
JC/T 621 Quicklime for silicate building products
JC/T 622 Sand for silicate building products
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Autoclaved aerated concrete; AAC
Using siliceous materials and calcium materials as the main raw materials, adding gas-generating agents and other adjusting materials, pouring, gas-gassing and cutting
Porous light silicate building products made by cutting, autoclaved curing and other processes.
3.2
Rectangular block material used for wall masonry in autoclaved aerated concrete.
3.3
Drydensity
The mass per unit volume measured by baking to a constant mass at a temperature of 105°C.
3.4
Dimensionaleffectcoefficient
The ratio of the compressive strength of the non-standard size specimen to the standard cubic specimen (100mm×100mm×100mm).
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