IS 1528 : 2018

Methods of Sampling and Testing of Refractory Materials

ASTM C133
CurrentSpecializedTesting MethodMaterials Science · Testing Methods and Quality Control
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Summary

IS 1528 is a multi-part test method standard for refractory materials — bricks, castables, and mortar used in furnaces, kilns, and high-temperature equipment. CCS, porosity, and RUL are the most commonly tested properties.

Methods of test for refractory bricks, castables, and mortar covering CCS, RUL, porosity, thermal conductivity, and chemical analysis.

Practical Notes
! CCS (Cold Crushing Strength) is the most commonly specified property for refractory bricks.
! Porosity indicates resistance to slag/metal penetration — lower porosity = better resistance.
! RUL (Refractoriness Under Load) simulates real furnace conditions better than PCE (cone test).
Cross-Referenced Codes
IS 6452:1989White Portland Cement - Specification
→
IS 7328:2008High Alumina Cement
→
refractory testingfire brickCCSRULporositythermal conductivity