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JGJ63-2006 PDF English

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JGJ63-2006: Standard of water for concrete
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JGJ63: Historical versions

Standard IDUSDBUY PDFDeliveryStandard Title (Description)Status
JGJ 63-2006145 Add to Cart Auto, 9 seconds. Standard of water for concrete Valid
JGJ 63-1989279 Add to Cart 3 days Standard for water of mixing in concrete Obsolete

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JGJ 63-2006: Standard of water for concrete

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JGJ PROFESSIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA UDC Standard of water for concrete Issued on. JULY 25, 2006 Implemented on. DECEMBER 1, 2006 Issued by. Ministry of Construction of the people’s Republic of China PROFESSIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA Standard of water for concrete J 531-2006 Approval Department. Ministry of Construction of the people’s Republic of China Implementation date. December 1, 2006 2006, Beijing Announcement of Ministry of Construction of the People’s Republic of China No. 461

Foreword

According to the requirements of Document Jian Biao [2004] No. 66 issued by Ministry of Construction (MOC), and after making extensive investigations and studies, conscientiously summing up practical experiences, referring to relevant foreign advanced standards, and basing on extensive solicitation of opinions, the standard developing group has revised the original “Standard of water for concrete mixing” JGJ 63-89. The main technical contents of this Standard are. 1.General; 2.Terms; 3.Technical requirements; 4.Inspection methods; 5.Inspection rules; 6.Result evaluation. The main contents revised are. 1.AMEND the standard name to “Standard of water for concrete”, INCORPORATE water for concrete maintenance into this Standard; 2. ADD the chapter of terms, CANCEL the chapter of classification; 3.INCORPORATE urban recycling water into this Standard; 4.In the technical requirements for water quality, the pH value of water for prestressed concrete is increased from 4.0 to 5.0, and the pH value of water for reinforced concrete and plain concrete is increased from 4.0 to 4.5; the chloride content (in Cl-) in water for reinforced concrete is reduced from 1200 mg/L to 1000 mg/L; the chloride ion content in water for structural concrete with a design service life of 100 years shall not exceed 500 mg/L; the sulfate (in SO42-) is reduced from 2700 mg/L to 2000 mg/L; CANCEL the sulfide inspection items; ADD the content of alkali content; 5.ADD the radioactivity inspection items; 6.DETERMINE the cement mortar strength test as the only strength comparative test method; 7.All inspection methods refer to national standards; 8.ADD the content of inspection frequency. The Ministry of Construction is responsible for the management and interpretation of the mandatory provisions in this Standard, and the chief development organization is responsible for the interpretation of specific technical content. Chief development organization of this Standard. China Academy of Building Research (Address. No. 30, North Third Ring East Road, Beijing; Zip code. 100013) Participating organizations of this Standard. Jingcheng Zhongshui Brunch of Beijing Drainage Group Co., Ltd., Shenzhen University, China National Environmental Monitoring Centre, Yunnan Construction Engineering Concrete Co., Ltd., Shenzhen Xingaojian Commodity Concrete Co., Ltd., Beijing Yushuchuang Component Factory, Beijing Water Conservation Management Center, Guizhou Construction Science Research & Design Institute, Building Materials Co., Ltd. of China Academy of Building Research Chief drafting staff of this Standard. Ding Wei, Leng Faguang, Huo Jian, Xing Feng, Wang Qiang, Du Wei, Guo Huibin, Li Xincheng, Yang Yuqi, He Jianping, Ma Donghua, Zhao Jicheng, Huang Lei, Wang Yujie, Lin Lixun.

Table of Contents

Foreword... 4 1 General... 6 2 Terms... 7 3 Technical requirements... 8 3.1 Water for concrete mixing... 8 3.2 Water for concrete maintenance... 9 4 Inspection methods... 10 5 Inspection rules... 11 5.1 Sampling... 11 5.2 Inspection period and frequency... 11 6 Result evaluation... 13 Wording of this Standard... 14

1 General

1.0.1 In order to ensure the quality of water for concrete, and to make concrete performance meet the technical requirements, this Standard is developed. 1.0.2 This Standard applies to water for concrete of industrial and civil buildings and general structures. 1.0.3 In addition to complying with this Standard, water for concrete shall also comply with the provisions of existing national standards.

2 Terms

2.0.1 Water for concrete General term of water for concrete mixing and water for concrete maintenance, including. drinking water, nature surface water, underground water, urban recycling water, concrete enterprise equipment washing water and seawater. 2.0.2 Nature surface water Water present in rivers, lakes, ponds, swamps and glaciers. 2.0.3 Underground water Flowing water present in rock crevices or soil pores. 2.0.6 Soluble substance Under the specified conditions, the water sample is filtered, the mater that has pass through the membrane and remained after partially dried and evaporated.

3 Technical requirements

3.1 Water for concrete mixing 3.1.1 The water quality requirements for water for concrete mixing shall comply with 3.1.3 The water sample to be tested shall be subjected to the comparative test with the drinking water sample for setting time of cement. In the comparative test, the difference between the initial setting time and the final setting time of cement shall not be greater than 30 min. Meanwhile, the initial setting time and final setting time shall comply with the provisions of the current national standard “Portland cement and ordinary Portland cement” GB 175. 3.1.8 Seawater may be used for plain concrete in the absence of access to water, but should not be used for decorative concrete. 3.2 Water for concrete maintenance 3.2.1 Water for concrete maintenance may be subjected to the inspection of insoluble substance and soluble substance. Other inspection items shall comply with the provisions of 3.1.1 and 3.1.2 of this Standard.

4 Inspection methods

4.0.1 The inspection of pH value shall meet the requirements of the current national standard “Water quality - Determination of pH value - Glass electrode method” GB/T 6920 and should be determined on site. 4.0.2 The inspection of insoluble substance shall meet the requirements of the current national standard “Water quality - Determination of suspended substance - Gravimetric method” GB/T 11901. 4.0.7 The cement setting time test shall meet the requirements of the current national standard “Standard test method - Water requirement for normal consistency, setting time and soundness of the Portland cement” GB/T 1346.The test shall use 42.5 grade Portland cement, or may use 42.5 grade ordinary Portland cement; in case of controversy, 42.5 grade Portland cement shall prevail. 4.0.8 The cement mortar strength test shall meet the requirements of the current national standard “Method of testing cements - Determination of strength” GB/T 17671. The test shall use 42.5 grade Portland cement, or may use 42.5 grade ordinary Portland cement; in case of controversy, 42.5 grade Portland cement shall prevail.

5 Inspection rules

5.1 Sampling 5.1.1 The water sample for water quality inspection shall not be less than 5 L; the water sample for determination of cement setting time and mortar strength shall not be less than 3 L. 5.1.5 The urban recycling water shall be collected at the end of the water intake pipe. 5.1.6 The concrete enterprise equipment washing water shall collected in the pool and below 100 mm from the surface of the water after deposition. 5.2 Inspection period and frequency 5.2.1 The water sample inspection period shall meet the following requirements. 5.2.2 The radioactivity of nature surface water, underground water and urban recycling water should be inspected before use. If there is reliable data to prove that there is no radioactive pollution, the inspection may not be carried out.

6 Result evaluation

6.0.1 Drinking water that meets the requirements of the current national standard “Sanitary standard for drinking water” GB 5749 may be used as water for concrete without inspection. JGJ 63-2006 JGJ PROFESSIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA UDC Standard of water for concrete Issued on. JULY 25, 2006 Implemented on. DECEMBER 1, 2006 Issued by. Ministry of Construction of the people’s Republic of China PROFESSIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA Standard of water for concrete J 531-2006 Approval Department. Ministry of Construction of the people’s Republic of China Implementation date. December 1, 2006 2006, Beijing Announcement of Ministry of Construction of the People’s Republic of China No. 461

Foreword

According to the requirements of Document Jian Biao [2004] No. 66 issued by Ministry of Construction (MOC), and after making extensive investigations and studies, conscientiously summing up practical experiences, referring to relevant foreign advanced standards, and basing on extensive solicitation of opinions, the standard developing group has revised the original “Standard of water for concrete mixing” JGJ 63-89. The main technical contents of this Standard are. 1.General; 2.Terms; 3.Technical requirements; 4.Inspection methods; 5.Inspection rules; 6.Result evaluation. The main contents revised are. 1.AMEND the standard name to “Standard of water for concrete”, INCORPORATE water for concrete maintenance into this Standard; 2. ADD the chapter of terms, CANCEL the chapter of classification; 3.INCORPORATE urban recycling water into this Standard; 4.In the technical requirements for water quality, the pH value of water for prestressed concrete is increased from 4.0 to 5.0, and the pH value of water for reinforced concrete and plain concrete is increased from 4.0 to 4.5; the chloride content (in Cl-) in water for reinforced concrete is reduced from 1200 mg/L to 1000 mg/L; the chloride ion content in water for structural concrete with a design service life of 100 years shall not exceed 500 mg/L; the sulfate (in SO42-) is reduced from 2700 mg/L to 2000 mg/L; CANCEL the sulfide inspection items; ADD the content of alkali content; 5.ADD the radioactivity inspection items; 6.DETERMINE the cement mortar strength test as the only strength comparative test method; 7.All inspection methods refer to national standards; 8.ADD the content of inspection frequency. The Ministry of Construction is responsible for the management and interpretation of the mandatory provisions in this Standard, and the chief development organization is responsible for the interpretation of specific technical content. Chief development organization of this Standard. China Academy of Building Research (Address. No. 30, North Third Ring East Road, Beijing; Zip code. 100013) Participating organizations of this Standard. Jingcheng Zhongshui Brunch of Beijing Drainage Group Co., Ltd., Shenzhen University, China National Environmental Monitoring Centre, Yunnan Construction Engineering Concrete Co., Ltd., Shenzhen Xingaojian Commodity Concrete Co., Ltd., Beijing Yushuchuang Component Factory, Beijing Water Conservation Management Center, Guizhou Construction Science Research & Design Institute, Building Materials Co., Ltd. of China Academy of Building Research Chief drafting staff of this Standard. Ding Wei, Leng Faguang, Huo Jian, Xing Feng, Wang Qiang, Du Wei, Guo Huibin, Li Xincheng, Yang Yuqi, He Jianping, Ma Donghua, Zhao Jicheng, Huang Lei, Wang Yujie, Lin Lixun.

Table of Contents

Foreword... 4 1 General... 6 2 Terms... 7 3 Technical requirements... 8 3.1 Water for concrete mixing... 8 3.2 Water for concrete maintenance... 9 4 Inspection methods... 10 5 Inspection rules... 11 5.1 Sampling... 11 5.2 Inspection period and frequency... 11 6 Result evaluation... 13 Wording of this Standard... 14

1 General

1.0.1 In order to ensure the quality of water for concrete, and to make concrete performance meet the technical requirements, this Standard is developed. 1.0.2 This Standard applies to water for concrete of industrial and civil buildings and general structures. 1.0.3 In addition to complying with this Standard, water for concrete shall also comply with the provisions of existing national standards.

2 Terms

2.0.1 Water for concrete General term of water for concrete mixing and water for concrete maintenance, including. drinking water, nature surface water, underground water, urban recycling water, concrete enterprise equipment washing water and seawater. 2.0.2 Nature surface water Water present in rivers, lakes, ponds, swamps and glaciers. 2.0.3 Underground water Flowing water present in rock crevices or soil pores. 2.0.6 Soluble substance Under the specified conditions, the water sample is filtered, the mater that has pass through the membrane and remained after partially dried and evaporated.

3 Technical requirements

3.1 Water for concrete mixing 3.1.1 The water quality requirements for water for concrete mixing shall comply with 3.1.3 The water sample to be tested shall be subjected to the comparative test with the drinking water sample for setting time of cement. In the comparative test, the difference between the initial setting time and the final setting time of cement shall not be greater than 30 min. Meanwhile, the initial setting time and final setting time shall comply with the provisions of the current national standard “Portland cement and ordinary Portland cement” GB 175. 3.1.8 Seawater may be used for plain concrete in the absence of access to water, but should not be used for decorative concrete. 3.2 Water for concrete maintenance 3.2.1 Water for concrete maintenance may be subjected to the inspection of insoluble substance and soluble substance. Other inspection items shall comply with the provisions of 3.1.1 and 3.1.2 of this Standard.

4 Inspection methods

4.0.1 The inspection of pH value shall meet the requirements of the current national standard “Water quality - Determination of pH value - Glass electrode method” GB/T 6920 and should be determined on site. 4.0.2 The inspection of insoluble substance shall meet the requirements of the current national standard “Water quality - Determination of suspended substance - Gravimetric method” GB/T 11901. 4.0.7 The cement setting time test shall meet the requirements of the current national standard “Standard test method - Water requirement for normal consistency, setting time and soundness of the Portland cement” GB/T 1346.The test shall use 42.5 grade Portland cement, or may use 42.5 grade ordinary Portland cement; in case of controversy, 42.5 grade Portland cement shall prevail. 4.0.8 The cement mortar strength test shall meet the requirements of the current national standard “Method of testing cements - Determination of strength” GB/T 17671. The test shall use 42.5 grade Portland cement, or may use 42.5 grade ordinary Portland cement; in case of controversy, 42.5 grade Portland cement shall prevail.

5 Inspection rules

5.1 Sampling 5.1.1 The water sample for water quality inspection shall not be less than 5 L; the water sample for determination of cement setting time and mortar strength shall not be less than 3 L. 5.1.5 The urban recycling water shall be collected at the end of the water intake pipe. 5.1.6 The concrete enterprise equipment washing water shall collected in the pool and below 100 mm from the surface of the water after deposition. 5.2 Inspection period and frequency 5.2.1 The water sample inspection period shall meet the following requirements. 5.2.2 The radioactivity of nature surface water, underground water and urban recycling water should be inspected before use. If there is reliable data to prove that there is no radioactive pollution, the inspection may not be carried out.

6 Result evaluation

6.0.1 Drinking water that meets the requirements of the current national standard “Sanitary standard for drinking water” GB 5749 may be used as water for concrete without inspection. ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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