砂浆强度的测定是由边长为7.07cm的正方体试件，经过28d标准的养护

The strength of the mortar is measured by a cube test piece with a side length of 7.07cm. After 28d standard curing, the compressive strength values ​​of a group of six pieces are measured to comprehensively evaluate it. Mortar test blocks should be randomly sampled and made at the discharge port of the mixer, and only one set of test blocks should be made for the same plate of mortar. For mortars of different strength grades, 250m³ is used as an inspection batch, and at least one set of test blocks should be left during mechanical mixing.

The determination of mortar strength is determined by the positive box test piece with a side length of 7.07cm, and after the maintenance of 28d standard, a set of six pieces of pressure strength value is measured to comprehensively assess. The mortar test block shall be randomly sampled and made at the blender outlet, and only one set of test blocks should be made in the same plate mortar. Mortar of different strength grades takes 250m3 as a test batch and leaves at least one set of test blocks when mixed mechanically.

The mortar strength is measured by the cube specimen with side length of 7.07 cm. After 28 days of standard curing, a group of six compressive strength values are measured to comprehensively evaluate. The mortar test block shall be randomly sampled and made at the outlet of the mixer, and only one group of test blocks shall be made for the same plate of mortar. For mortar of different strength grades, 250m3 shall be taken as an inspection batch, and at least one group of test blocks shall be reserved during mechanical mixing.<br>