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GB/T 35723-2017 English PDF

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GB/T 35723-2017: Rapid test method for surface salt-freezing resistance of precast concrete paving units
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GB/T 35723-2017English199 Add to Cart 3 days [Need to translate] Rapid test method for surface salt-freezing resistance of precast concrete paving units Valid GB/T 35723-2017

PDF similar to GB/T 35723-2017


Standard similar to GB/T 35723-2017

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Basic data

Standard ID GB/T 35723-2017 (GB/T35723-2017)
Description (Translated English) Rapid test method for surface salt-freezing resistance of precast concrete paving units
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard Q14
Classification of International Standard 91.100.30
Word Count Estimation 10,165
Date of Issue 2017-12-29
Date of Implementation 2018-11-01
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

GB/T 35723-2017: Rapid test method for surface salt-freezing resistance of precast concrete paving units


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Rapid test method for surface salt-freezing resistance of precast concrete paving units ICS 91.100.30 Q14 National Standards of People's Republic of China Concrete pavement frost resistant surface Salt rapid test method 2017-12-29 Posted 2018-11-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Foreword Ⅲ 1 Scope 1 2 Normative references 1 3 principle 1 4 equipment 1 5 test materials 2 6 test pieces 4 7 Test Procedure 4 8 test results calculation and evaluation 4 9 Test Report 5

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard proposed by the China Building Materials Federation. This standard by the National Wall Roofing and Road Building Materials Standardization Technical Committee (SAC/TC285) centralized. This standard is drafted by. Liaoning Provincial Institute of Quality Supervision, Inspection and Quarantine. Participated in the drafting of this standard. Kunshan Tonghai Building Materials Technology Co., Ltd., Fujian Qunfeng Machinery Co., Ltd., Huludao City, South District, Yuxing Component Factory, Shenyang Jianzhu University. The main drafters of this standard. Huizhi Feng, by the world wide, Yao Feng Yuan, Zhang Jianhai, Valley Kim, Zheng Yi, Qiu Lianqiang, Wang Lixin, Sun Xiaowei, Wang Xuehao, Min Yubing, Han Dong, Zhang Xu, Wang Jinling, Jin Fu, Liu Yanbo, Wang Zhongyi, Wang Xiaoming, Zhang Ping, Jiang Qi. Concrete pavement frost resistant surface Salt rapid test method

1 Scope

This standard specifies the rapid test method for the determination of concrete pavement tiles and concrete pavement (hereinafter referred to as pavement tiles) surface frost resistance Principle, equipment, test materials, specimens, test procedures, calculation and evaluation of test results, test reports. This standard applies to the rapid determination of pavement brick surface frost resistance.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 30435 electric oven and electric blast oven JG/T 243 concrete antifreeze test equipment

3 principle

Frozen and thawed devices on the surface of the pavement brick salt freezing test to determine the amount of peel off after the freeze-thaw pavement brick to measure the surface of the pavement brick Frost resistance.

4 device

4.1 low temperature testing machine Low-temperature testing machine should meet the provisions of JG/T 243. Under full load operating conditions, the air temperature in the low temperature test enclosure during freezing should be Can be maintained at -20 ℃ ~ -18 ℃ range. Full load when the temperature difference between the box should not exceed 2 ℃. 4.2 constant temperature and humidity chamber Temperature should be adjustable to 25 ℃, uniformity of ± 2 ℃; relative humidity should be adjusted to 50%, evenness of 2% to -3%. 4.3 electric blast oven Electric blast drying oven should meet the requirements of GB/T 30435. The temperature inside the tank should be kept within the range of (105 ± 5) ° C; the temperature fluctuates Degree. ≤1 ℃; Temperature uniformity. ≤2%. 4.4 concrete cutting machine Should adopt desktop equipment for cutting large-size pavement tiles, making the sample in line with the requirements of this standard. 4.5 weighing equipment Electronic balance, the maximum range 1000g, accuracy of not less than 0.1g.

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