GB/T 39698-2020 in English

VALID

Confirmation methods for delivering common Portland cement

Issued on:2020-12-14
Implemented on:2021-11-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $120.00
$117.00

Standard No:	GB/T 39698-2020
Document status:	VALID
Title in English:	Confirmation methods for delivering common Portland cement
Title in Chinese:	通用硅酸盐水泥出厂确认方法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2020-12-14
Implemented on:	2021-11-01
ICS Classification:	91.100.10-Cement. Gypsum. Lime. Mortar
Chinese Classification:	Q11-Cement
Professional Classification:	GB-National Standard
Related Keywords:	cement quality quality confirmation factory cement confirmation operation instructions general purpose portland cement common portland cement introduction interpretation
Related Topics:	Silicate Method Validation Criteria confirm method confirmed Two ways to confirm confirmation method Measuring range in method validation confirmation method Qualitative method validation Method Validation System Method for detection of silicates in water Confirmation of measurement method Method Validation Samples Inspection Method Confirmation Method 1 Method 2 without method validation Domestic method confirmation Bromine and Misin Method Validation Requirement Confirmation Method Validation procedure for method use confirmation method Detection method validation and method validation Standard Method Validation Techniques mud Method Validation Techniques Silicate version Method for confirming requirements cement relationship Standard Validation and Method Validation Portland cement Portland cement confirm and confirm confirm and confirm Universal Portland Cement Specific rotation method confirmation Standard Method Revalidation Silicate detection method Detection method and method confirmation Silicate test method Confirmation Test Method General Method Validation How to use salt Test method for silicate confirm acknowledgment nearby cement factory How to confirm the measurement method Universal Silicate "Universal Portland Cement" GBT39698 GB/T 39698-2020 General portland cement factory confirmation method gb175-2007 General Portland Cement Main Terms Detection methods for silicate Preparation method of monosilicic acid Confirmation of specificity of traditional Chinese medicine methods Silicic acid preparation method sewage plant sulfate Sodium nitroprusside structure confirmation method Titration method validation protocol Silicate detection method in water The correct way to dilute concentrated hydrochloric acid Moisture determination method confirmation report Confirmation of environmental sludge detection method The necessity of method validation for pharmacopoeial methods Moisture method does not require confirmation Confirmation of specificity by UV method The difference between method transfer and method confirmation BTEX method confirmation

《GB/T 39698-2020通用硅酸盐水泥出厂确认方法》由TC184（全国水泥标准化技术委员会）归口，主管部门为中国建筑材料联合会。

Introduction

Interpretation of the core content of the standard

This standard specifies the full-process technical requirements for quality confirmation of general purpose Portland cement before leaving the factory, with the focus on:

Construction of production process quality control system
Prediction method of cement quality leaving the factory
Grading and handling mechanism for quality anomalies

Comparison of key technical indicators

Project	Strength grade 32.5	Strength grade 42.5	Strength grade 52.5+
28d compressive strength coefficient of variation Cv	≤5.0%	≤4.0%	≤3.5%
Lower limit of quality assurance coefficient	Calculated according to the formula AM-X+1≥0

Key points for standard implementation

Typical application scenarios

After a cement group implemented this standard:

Established a three-level traceability system for raw materials-clinker-cement
Using JC/T 738 rapid inspection method to shorten the strength prediction cycle by 40%
Dynamically adjust process parameters through quality assurance coefficient

Standard evolution analysis

Compared with previous specifications, the innovation of this standard is:

For the first time, the quantitative calculation method of the quality assurance coefficient was clarified
Heavy metal control requirements were increased during the coordinated disposal of solid waste
The three-level response mechanism for quality anomalies was refined

Suggestions for enterprise implementation

Data system construction: It is recommended to configure online detection equipment to realize real-time collection of process data
Staff training: Focus on training on coefficient of variation calculation and strength prediction model application
Document management: A separate "Factory Cement Confirmation Operation Instructions" needs to be compiled

More samples: YD/T 3934-2021 JC/T 2453-2018 DL/T 5154-2012

Sample only — not a preview of GB/T 39698-2020

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