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GB/T 8077-2012   Methods for testing uniformity of concrete admixture (English Version)
Standard No.: GB/T 8077-2012 Status:valid remind me the status change

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Language:English File Format:PDF
Word Count: 8000 words Price(USD):200.0 remind me the price change

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Implemented on:2013-8-1 Delivery: via email in 1 business day
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Standard No.: GB/T 8077-2012
English Name: Methods for testing uniformity of concrete admixture
Chinese Name: 混凝土外加剂匀质性试验方法
Chinese Classification: Q12    Cement composite material and additives
Professional Classification: GB    National Standard
ICS Classification: 91.100.30 91.100.30    Concrete and concrete products 91.100.30
Issued by: AQSIQ, SAC
Issued on: 2012-12-31
Implemented on: 2013-8-1
Status: valid
Superseding:GB/T 8077-2000 Methods for testing uniformity of concrete admixture
Language: English
File Format: PDF
Word Count: 8000 words
Price(USD): 200.0
Delivery: via email in 1 business day
1 Scope This standard specifies the methods for testing uniformity of admixtures in cement concrete. This standard is applicable to 11 categories of concrete admixtures including high performance water reducer (accelerating, standard, retarding), high range water reducer (standard, retarding), water reducer (accelerating, standard, retarding), air entraining and water reducing admixture, pumping aid, hardening accelerating admixture, retarder, air entraining admixture, waterproofing agent, antifreezing agent and accelerating agent. 2 Normative References The following documents are indispensable for the application of this standard. For dated references, only the dated edition is applicable to this document. For undated references, the latest editions of the normative documents (including all the amendments) are applicable to this document. GB/T 176 Methods for Chemical Analysis of Cement GB/T 2419 Test Method for Fluidity of Cement Mortar JC/T 681 Mixer for Mixing Mortars JC/T 729 Mixer for Cement Paste 3 Terms and Definitions For the purposes of this document, the following terms and definitions apply. 3.1 Repeatability conditions Testing conditions that the same measured object is independently tested by the same operator using the same equipment in the same laboratory according to the same method in a short time. 3.2 Reproducibility conditions Testing conditions that the same measured object is independently tested by different operators using different equipment in different laboratories according to the same method. 3.3 Repeatability limit A value, under the repeatability conditions (3.1), that the absolute difference of two test results is less than or equal to this value in a probability of 95%. 3.4 Reproducibility limit A value, under the reproducibility conditions (3.2), that the absolute difference of two test results is less than or equal to this value in a probability of 95%. 4 Basic Test Requirements
Foreword 1 Scope 2 Normative References 3 Terms and Definitions 4 Basic Test Requirements 5 Solid Content 6 Moisture Content 7 Density 8 Fineness 9 pH Value 10 Surface Tension 11 Chloride Ion Content 12 Sodium Sulfate Content 13 Cement Paste Fluidity 14 Water Reduction Rate of Cement Mortar 15 Total Alkali Content Appendix A (Informative) Examples for Calculating Chloride Ion Content (in Percentage) in Concrete Admixture by Potentiometric Titration
Referred in GB/T 8077-2012:
*GB/T 176-2017 Methods for chemical analysis of cement
*GB/T 2419-2005 Test Method for Fluidity of Cement Mortar
*JC/T 681-2005 Mixer for mixing mortars
*JC/T 729-2005 Mixer for cement paste
GB/T 8077-2012 is referred in:
* JC 901-2002 Curing compounds for cement concrete
* GB 50550-2010 Code for acceptance of constructional guality of strengthening building structures
* GB 50550-2010 Code for acceptance of constructional guality of strengthening building structures
* JC 901-2002 Curing compounds for cement concrete
* GB 8076-2008 Concrete Admixtures
* JC/T 902-2002 Silicone hydrophobic agent for construction surfaces
* GB/T 50448-2015 Code for application technique of cementitious grout
*GB/T 33544-2017 Glass fiber and magnesium cement board
*GB/T 25182-2010 Grouting admixture for prestressed structure
*GB/T 26748-2011 Cement grinding aids
Code of China
Standard
GB/T 8077-2012  Methods for testing uniformity of concrete admixture (English Version)
Standard No.GB/T 8077-2012
Statusvalid
LanguageEnglish
File FormatPDF
Word Count8000 words
Price(USD)200.0
Implemented on2013-8-1
Deliveryvia email in 1 business day
Detail of GB/T 8077-2012
Standard No.
GB/T 8077-2012
English Name
Methods for testing uniformity of concrete admixture
Chinese Name
混凝土外加剂匀质性试验方法
Chinese Classification
Q12
Professional Classification
GB
ICS Classification
Issued by
AQSIQ, SAC
Issued on
2012-12-31
Implemented on
2013-8-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
GB/T 8077-2000 Methods for testing uniformity of concrete admixture
Language
English
File Format
PDF
Word Count
8000 words
Price(USD)
200.0
Keywords
GB/T 8077-2012, GB 8077-2012, GBT 8077-2012, GB/T8077-2012, GB/T 8077, GB/T8077, GB8077-2012, GB 8077, GB8077, GBT8077-2012, GBT 8077, GBT8077
Introduction of GB/T 8077-2012
1 Scope This standard specifies the methods for testing uniformity of admixtures in cement concrete. This standard is applicable to 11 categories of concrete admixtures including high performance water reducer (accelerating, standard, retarding), high range water reducer (standard, retarding), water reducer (accelerating, standard, retarding), air entraining and water reducing admixture, pumping aid, hardening accelerating admixture, retarder, air entraining admixture, waterproofing agent, antifreezing agent and accelerating agent. 2 Normative References The following documents are indispensable for the application of this standard. For dated references, only the dated edition is applicable to this document. For undated references, the latest editions of the normative documents (including all the amendments) are applicable to this document. GB/T 176 Methods for Chemical Analysis of Cement GB/T 2419 Test Method for Fluidity of Cement Mortar JC/T 681 Mixer for Mixing Mortars JC/T 729 Mixer for Cement Paste 3 Terms and Definitions For the purposes of this document, the following terms and definitions apply. 3.1 Repeatability conditions Testing conditions that the same measured object is independently tested by the same operator using the same equipment in the same laboratory according to the same method in a short time. 3.2 Reproducibility conditions Testing conditions that the same measured object is independently tested by different operators using different equipment in different laboratories according to the same method. 3.3 Repeatability limit A value, under the repeatability conditions (3.1), that the absolute difference of two test results is less than or equal to this value in a probability of 95%. 3.4 Reproducibility limit A value, under the reproducibility conditions (3.2), that the absolute difference of two test results is less than or equal to this value in a probability of 95%. 4 Basic Test Requirements
Contents of GB/T 8077-2012
Foreword 1 Scope 2 Normative References 3 Terms and Definitions 4 Basic Test Requirements 5 Solid Content 6 Moisture Content 7 Density 8 Fineness 9 pH Value 10 Surface Tension 11 Chloride Ion Content 12 Sodium Sulfate Content 13 Cement Paste Fluidity 14 Water Reduction Rate of Cement Mortar 15 Total Alkali Content Appendix A (Informative) Examples for Calculating Chloride Ion Content (in Percentage) in Concrete Admixture by Potentiometric Titration
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