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Test Method Title
Standard Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube Specimens)
Description of Test
The mortar used consists of 1 part cement and 2.75 parts of sand proportioned by mass. Portland or air-entraining Portland cements are mixed at specified water/cement ratios. Water content for other cements is that sufficient to obtain a flow of 110 6 5 drops of the flow table. Two-inch or [50-mm] test cubes are compacted by tamping in two layers. The cubes are cured one day in the molds and stripped and immersed in lime water until tested.
Preferred Test Sample Size
representative sample from batch
Number of Test Specimens
2-3 specimens per batch per age
Test Specimen Size
2" x 2" x 2"
mortar, compressive strength, cubes