How many bag of cement need to build 1 square meter of concrete block wall?

To build 1 square meter of concrete block wall, you typically need about 0.5 to 1 bag of cement, depending on the thickness of the mortar joint and the specific mix used. Generally, a standard mix for mortar requires around 1 part cement to 3 parts sand. Therefore, using an average of 0.6 bags per square meter is a reasonable estimate for a standard block wall. Always consider local practices and specifications for a more accurate calculation.