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GB/T 2994-2021: High alumina refractory mortars
Status: Valid GB/T 2994: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 2994-2021 | English | 119 |
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High alumina refractory mortars
| Valid |
GB/T 2994-2021
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| GB/T 2994-2008 | English | 90 |
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High alumina refractory mortars
| Obsolete |
GB/T 2994-2008
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| GB/T 2994-1994 | English | 199 |
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High alumina refractory mortars [including MODIFICATION 1]
| Obsolete |
GB/T 2994-1994
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| GB 2994-1982 | English | 199 |
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High alumina refractory mortars
| Obsolete |
GB 2994-1982
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PDF similar to GB/T 2994-2021
Basic data | Standard ID | GB/T 2994-2021 (GB/T2994-2021) | | Description (Translated English) | High alumina refractory mortars | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q46 | | Word Count Estimation | 6,628 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 2994-2021: High alumina refractory mortars---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.
High alumina refractory mortars
ICS 81.080
CCSQ46
National Standards of People's Republic of China
Replace GB/T 2994-2008
High alumina refractory mud
Released on 2021-08-20
2022-03-01 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 replaces GB/T 2994-2008 "High Alumina Refractory Mud", compared with GB/T 2994-2008, except for structural adjustment and editing
In addition to the sexual changes, the main technical changes are as follows.
a) Modify the three grades of LN-55, LN-65, and LN-75 to LN-50, LN-60, and LN-70 (see Chapter 4 and
Chapter 5, Chapter 3 and Chapter 4 of the.2008 edition);
b) Modify the two grades of LN-65P and LN-75P to one grade of LN-70P (see Chapter 4 and Chapter 5,.2008 edition
Chapters 3 and 4);
c) Added GN-70P grades and corresponding technical indicators (see Table 1);
d) Modify the GN-85P grade to GN-80P (see Chapter 4, Chapter 3 of the.2008 edition).
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).
Drafting organizations of this document. Wuhan Weilin Technology Co., Ltd., MCC Wuhan Metallurgical Construction Research Institute Co., Ltd., Jiangsu Ceramics
Fire Material Product Quality Supervision and Inspection Center, Shanghai Lier Refractory Material Co., Ltd., Zhejiang Jincheng New Material Co., Ltd., Lier, Hunan Province
Ling Ma Lian Refractory Clay Co., Ltd.
The main drafters of this document. Wang Xiang, Xiang Bing, Xiang Yi, Liu Zhongjiang, Su Boping, Hou Weiwei, Wu Shujun, Zhu Huiliang, Gao Jianrong, Li Hongbo,
Li Weifeng, Wang Liwang, Xie Guangyao, Hou Zaisheng.
The previous versions of this document and the documents replaced are as follows.
--- First published in 1982 as GB/T 2994-1982, first revised in.1994, second revised in.2008;
---This is the third revision.
High alumina refractory mud
1 Scope
This document specifies the terms and definitions, classification and grades, technical requirements, test methods, quality assessment procedures, package
Installation, marking, transportation, storage and quality certificate.
This document is applicable to refractory mortar with alumina content greater than or equal to 50% for masonry of high-alumina refractory bricks and corundum bricks.
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 5988 Refractory material heating permanent line change test method
GB/T 6900 Aluminium-silicon refractory chemical analysis method
GB/T 15545 General provisions for packaging, marking, transportation, storage and quality certificates of unshaped refractory materials
GB/T 21114 Refractory material X-ray fluorescence spectroscopy chemical analysis method of molten cast glass sheet
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)
GB/T 22459.3 Refractory mortar Part 3.Bonding time test method
GB/T 22459.4 Refractory mortar Part 4.Normal temperature flexural bond strength test method
GB/T 22459.5 Refractory mud part 5.particle size distribution (sieve analysis) test method
GB/T 22459.7 Refractory mud Part 7.Other performance test methods
YB/T 370 Refractory material load softening temperature test method (non-differential-heating method)
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Ordinary high alumina refractory mortar
It uses high alumina bauxite clinker as the main raw material, and combines the gelation of clay and a small amount of admixture as the main bonding material.
3.2
Phosphate bonded high alumina refractory mortar
High alumina bauxite clinker is used as the main raw material, and phosphoric acid or aluminum dihydrogen phosphate solution is used as the joint material of the chemical bonding agent.
3.3
Phosphate bonded corundum refractory mortar
Corundum and high alumina bauxite clinker are used as the main raw materials, and phosphoric acid or aluminum dihydrogen phosphate solution is used as the joint material of the chemical bonding agent.
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