This code specifies the standard testing methods for evaluating the physical and mechanical properties of chemical-resistant silicate and resin mortars. It covers procedures to determine working time, setting time, compressive strength, flexural strength, tensile strength, and bond strength to ensure suitability for industrial applications.
Methods of Test for Chemical Resistant Mortars, Part I: Silicate Type and Resin Type
Quick Reference Values
standard test temperature27 ± 2°C
standard relative humidity65 ± 5%
minimum specimens for strength test3 specimens per test age
Key Formulas
Compressive Strength = P / A (where P = maximum load, A = cross-sectional area)
Flexural Strength = 3PL / 2bd² (where P = maximum load, L = span, b = width, d = depth)
Practical Notes
Resin and silicate mortars are highly sensitive to temperature; mixing and testing must be strictly controlled at 27 ± 2°C.
Use appropriate mold release agents (like silicone grease or microcrystalline wax) that do not chemically react with the resin or silicate.
Working time tests should simulate actual site conditions as much as possible, as exothermic reactions in resin mortars can significantly reduce pot life in large batches.