What is the limit of cement, river sand and flaky per inspection lot?
According to the different types of masonry and cement, the amount of cement and sand required for a cubic retaining wall is also different. If the cement is P42.5M7.5 mortar rubble, the dosage: 75KG of cement, 0.9m3 of rubble and 0.4m3 of sand. M5 mortar rubble, dosage: 68KG cement, 0.9m3 rubble and 0.46m3 sand. The above dosage is statistical method.