GB/T 38990-2020 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Name of Chinese Standard | Status |
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Waterborne epoxylite emulsified binder mixture for road engineering
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GB/T 38990-2020: PDF in English (GBT 38990-2020) GB/T 38990-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 93.080.20
Q 20
Waterborne epoxylite emulsified binder mixture for
road engineering
ISSUED ON: JULY 21, 2020
IMPLEMENTED ON: JUNE 01, 2021
Issued by: State Administration for Market Regulation;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 4
4 Materials ... 5
5 Requirements ... 6
6 Inspection rules ... 8
7 Transportation ... 10
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard was proposed by Ministry of Housing and Urban-Rural
Development of the People's Republic of China.
This Standard shall be under the jurisdiction of National Technical Committee
on Concrete of Standardization Administration of China (SAC/TC 458).
The drafting organizations of this Standard: Henan Road Industry Co., Ltd.,
Shenzhen Haichuan New Material Technology Co., Ltd., Henan Jiaoyuan
Engineering Technology Co., Ltd., China Construction Road and Bridge Group
Co., Ltd., Zhongjiao Road & Bridge Inspection & Maintenance Co., Ltd., Henan
Provincial Highway Engineering Bureau Group Co., Ltd., Henan Transportation
Vocational and Technical College, Gansu Provincial Highway Bureau,
Shandong Academy of Transportation Sciences, China Jiangsu International
Economic and Technical Cooperation Group Co., Ltd., Henan Second Highway
Engineering Co., Ltd., JSTI Group Co., Ltd.
Main drafters of this Standard: Zhang Hongchun, Zhou Junguang, Shao
Jinggan, Cui Yuping, Zhou Hekuan, Shen Guoyin, Pang Bingwei, Wang
Shicheng, Shi Pengfei, Fang Weihua, Shao Ping, Pan Jianguo, Fu Senfeng,
Wu Chunying, Han Yonghong, Yang Junpeng, Wei Jincheng, Wang Junchao,
Zheng Liangfei, Shao Wenhua, Gan Chunyan, Shao Jinsong, Cui Xiufeng, Fu
Jianfeng, Fu Jiancun, Duan Ruiqing, Zhang Liang, Du Zhanjun, Li Qing, Li Xiling.
Waterborne epoxylite emulsified binder mixture for
road engineering
1 Scope
This Standard specifies materials, requirements, inspection rules and
transportation for waterborne epoxylite emulsified binder mixture for road
engineering.
This Standard is applicable to various grades of roads and urban road projects.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB 175, Common Portland Cement
GB/T 528, Rubber, vulcanized or thermoplastic - Determination of tensile
stress-strain properties
GB/T 1677, Determining the epoxy value of plasticizers
GB/T 1725, Paints varnishes and plastics - Determination of non-volatile-
matter content
GB 8538, National Food Safety Standard - Methods for examination of
drinking natural mineral water
JTG E20, Standard Test Methods of Bitumen and Bituminous Mixtures for
Highway Engineering
JTG F40, Technical Specification for Construction of Highway Asphalt
Pavements
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
emulsified binder shall be inspected before construction. They can be used after
passing the inspection.
6.1.2 When the constructer or the supervisor unilaterally or both parties do not
have the test conditions, both parties can negotiate to entrust third-party
inspection.
6.2 Inspection classification
6.2.1 Exit-factory inspection
Exit-factory inspection shall, according to Table 4 and Table 6, be carried out to
each batch of waterborne epoxylite emulsified binder slurry mixtures or
waterborne epoxylite emulsified cold mix binder mixtures.
6.2.2 Type inspection
When the waterborne epoxylite emulsified binder slurry mixture or waterborne
epoxylite emulsified cold mix binder mixture is mixed for the first time as well as
when one of the following situations occurs during the construction process,
type inspection shall be carried out according to Table 1, Table 2, Table 4 and
Table 6:
a) when the source, type or specifications of raw materials, such as mineral
material and waterborne epoxylite emulsified binder, have changed that
may affect product performance;
b) when there is a significant difference in product quality.
6.3 Batching and sampling
6.3.1 Batching
6.3.1.1 Products shall be sampled and tested in batches.
6.3.1.2 For products produced by the same project, the same raw materials,
the same mix ratio and production process, per 3000t is one batch. If it is less
than 3000t, it shall be regarded as one batch.
6.3.2 Sampling
6.3.2.1 Conduct sampling in the paving trough of the slurry seal car for
waterborne epoxylite emulsified binder slurry mixture. It is better to conduct
sampling on paver for waterborne epoxylite emulsified cold mix binder mixture.
6.3.2.2 Samples shall be kept in reserve when sampling. The number of
retention groups of the sample shall be determined according to actual needs.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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