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GB/T 22459.8-2021: Refractory mortars - Part 8: Determination of bleeding
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Refractory mortars - Part 8: Determination of bleeding
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GB/T 22459.8-2021
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Basic data | Standard ID | GB/T 22459.8-2021 (GB/T22459.8-2021) | | Description (Translated English) | Refractory mortars - Part 8: Determination of bleeding | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q46 | | Word Count Estimation | 6,660 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 22459.8-2021: Refractory mortars - Part 8: Determination of bleeding---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Refractory mortars-Part 8.Determination of bleeding
ICS 81.080
CCSQ46
National Standards of People's Republic of China
Refractory mud
Part 8.Bleeding test method
Released on 2021-05-21
2021-12-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document is part 8 of GB/T 22459 "Refractory Mud". GB/T 22459 has released the following parts.
---Part 1.Consistency test method (cone penetration method);
---Part 2.Consistency test method (jumping table method);
---Part 3.Bonding time test method;
---Part 4.Test method for flexural bonding strength at room temperature;
---Part 5.Particle size distribution (sieve analysis) test method;
---Part 6.Test method for water content of pre-mixed mud;
---Part 7.Other performance test methods;
---Part 8.Test method for bleeding.
Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents.
This document was proposed and managed by the National Refractory Standardization Technical Committee (SAC/TC193).
This document was drafted by. Sinosteel Luoyang Refractory Research Institute Co., Ltd., and Jiangsu Ceramic Refractory Product Quality Supervision and Inspection
Center, Ruitai Maanshan Steel New Material Technology Co., Ltd., Wuhan Sunda Chemical Co., Ltd.
The main drafters of this document. Zhang Yanjie, Chen Wei, Li Longfei, Wang Xiufang, Yang Jinsong, Yang Wenbo, Liu Yunzheng, Zhu Huiliang, Gao Jianrong,
Xu Chengfeng, Hu Zhengyang, Zhang Yi, Huang Kai.
Introduction
Refractory mud is generally used as the joint material of refractory masonry to make the masonry form a tight whole to resist external damage and prevent gas,
The intrusion of molten liquid. Masonry joints are usually the weak link of the masonry, in most cases it is damaged before the masonry, so the quality of the refractory mud
It is closely related to the overall life of the masonry.
The bleeding of refractory mud is an indicator of its stability. At present, only qualitative analysis is usually carried out in the refractory industry.
Effective measurement methods are used to quantitatively analyze bleeding phenomena, and it is urgent to develop a test method to realize and standardize the quantitative analysis of bleeding phenomena. The standard
The quasi-test method is simple, fast, effective, and accurate. It can quantitatively analyze the bleeding phenomenon through the size of the bleeding rate, filling the refractory material.
Gaps in the material industry.
GB/T 22459 "Refractory Mud" was released in.2008 in 6 parts, all of which are equivalent to ISO 13765-1~6.2004, the international standard
It is led by our country, including consistency (cone penetration method and jumping table method), bonding time, normal temperature flexural bonding strength, and particle size distribution (screening
Analysis), moisture content and other conventional performance test methods; Part 7 other performance test methods will be released in.2019, including refractoriness, high temperature flexural bonding
Test methods for strength, flexural strength at room temperature, thermal expansion, thermal conductivity, etc.
This part is the eighth part, and the first seven parts belong to the refractory mud test method, which together constitute the refractory mud test method system.
Refractory mud
Part 8.Bleeding test method
1 Scope
This document specifies the terms and definitions, principles, equipment, sampling, test procedures, calculation of results, and test
Inspection report.
This document applies to refractory slurries, as well as press-in slurries and buffer slurries.
2 Normative references
The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations
Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
This document.
GB/T 4513.2 Unshaped refractory materials Part 2.Sampling
GB/T 8170 Numerical rounding rules and the expression and determination of limit values
GB/T 22459.1 Refractory mud Part 1.Consistency test method (cone penetration method)
GB/T 22459.2 Refractory mud Part 2.Consistency test method (jumping table method)
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Bleeding
Refractory mud has the performance of slurry seepage in a static state or under a certain load.
3.2
Bleeding rate
The percentage of the mass of the refractory slurry secreted by the refractory slurry within the specified time and the mass of the refractory slurry used in the test.
4 Principle
Put the evenly stirred refractory mud in the bleeding device, and apply a certain load within the specified time, and there will be slurry secretion in the refractory mud.
The percentage of the mass of the secreted slurry to the mass of the refractory slurry is the bleeding rate. The bleeding rate is used to characterize the bleeding rate of refractory mud.
5 Equipment
5.1 Blender
Use the mixer specified in GB/T 22459.1 or GB/T 22459.2.
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