GB/T 9966.2-2020 Test methods for natural stone—Part 2:Determination of dry,wet and after freezing flexural strength

Scope

This part of GB/T 9966 specifies the instruments and equipment, samples, test procedures, result calculation, and test reports used in the bending strength test of natural stone.
This part is applicable to the determination of bending strength of natural stone after drying, water saturation, and freeze-thaw cycles. The fixed moment bending strength - Method A is suitable for the fixed moment bending strength of stone used in building curtain walls and indoor walls and floors; the concentrated load bending strength - Method B is suitable for the concentrated load bending strength of stone used in outdoor squares and road surfaces.

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