Standard No.:	YB 384-1991
English Name:	Siliceous Refractory Mortar
Chinese Name:	硅质耐火泥浆
Chinese Classification:	Q14    Concrete product
Professional Classification:	YB    Professional Standard - Metallurgy
Issued by:	Ministry of Metallurgical Industry
Issued on:	1991-11-13
Implemented on:	1992-7-1
Status:	superseded
Superseded by:	YB/T 384-2011 Silica refractory mortars
Superseded on:	2012-7-1
Superseding:	YB 384-1963
Language:	English
File Format:	PDF
Word Count:	1000 words
Price(USD):	20.0
Delivery:	via email in 1 business day

Siliceous Refractory Mortar 1 Subject Contents and Application Scope This standard specifies the classification, technical requirements, test methods, inspection rules, symbols, packing and transport of siliceous refractory mortars; it is applicable to laying siliceous refractory mortars used for hot blast stove, coke oven and glass furnace of blast furnace. This standard may also be applicable to the siliceous refractory mortars for other silica brick masonry. 2 Normative References GB 5024.2 Test Method for Setting Time of Refractory Mortar GB 5024.3 Test Method for Cold Rupture Bonding Strength of Refractory Mortar GB 6901 Chemical analysis of silica refractories GB 7316 Test method for refractoriness of refractory mortar GB 7318 Test method for sieve analysis of refractory mortar YB 4024 Test methods for refractoriness under load of refractory mortar 3 Products Classification The siliceous refractory mortars are divided into four classes (seven grades in total) according to the characteristics of furnace and the physical and chemical parameters of slurry. 3.1 The siliceous refractory mortars for hot blast stove: RGN-94. 3.2 Siliceous refractory mortars for coke oven: JGN-92 and JGN-85. 3.3 Siliceous refractory mortars for glass furnace: BGN-96 and BGN-94. 3.4 Siliceous slurry insulation: GGN-94 and GGN-92. 4 Technical Requirements The physical and chemical parameters of siliceous refractory mortars shall meet the requirements of Table 1, Table 2, Table 3 and Table 4. Table 1 Siliceous Refractory Mortar for Hot Blast Stove Item RGN-94 Former index Refractoriness, seger cone No. (WZ) 169 Present index Refractoriness, cone No. CN 170 Table 2 Siliceous Refractory Mortars for Coke Oven Item JGN-92 JGN-85 Former index Refractoriness, seger cone No. (WZ) 167 158 Present index Refractoriness, cone No. CN 166 158 Table 3 Siliceous Refractory Mortars for Glass Furnace Item BGN-96 BGN-94 Former index Refractoriness, seger cone No. (WZ) 171 169 Present index Refractoriness, cone No. CN 172 170 Table 4 Siliceous Refractory Mortars Insulation Item GGN-94 GGN-92 Former index Refractoriness, seger cone No. (WZ) 169 167 Present index Refractoriness, cone No. CN 5 Test Methods 5.1 The inspection of refractoriness shall meet the provisions of GB 7316. 5.2 For the inspection of cold rupture bonding strength, the slurry consistency is required to be 340~380; the specimen number after burning is 6; after insulation, the cooling rate of specimen shall not exceed 1℃ per minute; Others shall meet the provisions of GB 5024.3. 5.3 The inspection of setting time shall meet the provisions of GB 5024.2. 5.4 The grading analysis shall meet the provisions of GB 7318. 5.5 The chemical analysis shall meet the provisions of GB 6901. 5.6 The inspection of refractoriness under load shall meet the provisions of YB 4024.