GB/T 2994-2021 (English Version) PDF

Scope: This document specifies the terms and definitions, classification and designation, technical requirements, test methods, quality assessment procedures, packaging, marking, transportation, storage and quality certificates of high alumina refractory mud. This document is applicable to the refractory mud with alumina content greater than or equal to 50% for masonry high-alumina refractory roadways and corundum bricks.

GB/T 2994-2021 Referenced Document

GB/T 15545 General rules for packing, marking, transport, storage and quality certificates of unshaped refractory
GB/T 21114 Refractories—Chemical analysis by X-ray fluorescence(XRF)—Fused cast-bead method
GB/T 22459.1 Refractory mortars—Part 1：Determination of consistency using the penetrating cone method*， 2022-03-09 Update
GB/T 22459.2 Refractory mortars—Part 2：Determination of consistency using the reciprocating flow table method*， 2022-03-09 Update
GB/T 22459.3 Refractory mortars—Part 3: Determination of joint stability*， 2021-10-11 Update
GB/T 22459.4 Refractory mortars—Part 4: Determination of flexural bonding strength*， 2022-03-09 Update
GB/T 22459.5 Refractory mortars—Part 5: Determination of grain size distribution ( sieve analysis )*， 2022-03-09 Update
GB/T 22459.7 Refractory mortars—Part 7: Determination of other properties
GB/T 4513.2 Monolithic (unshaped) refractory products—Part 2：Sampling for testing
GB/T 5988 Refractory products—Determination of permanent change in dimensions on heating*， 2022-03-09 Update
GB/T 6900 Chemical analysis of alumina silica refractories
YB/T 370 Refractoies.Determination of refractoriness under load (non-differential, with rising temperature)

$High alumina refractory mortars$