Mortar Based on Compressive Strength and Chemical Elements

Mortar is a mixture of binder material (portland cement/portland pozzolan cement/fly ash), fine aggregate and water in which the material must meet standard requirements. Mortar is generally used as a binder (species) and cover (plastering) of red brick in wall work. In a test (press test) to determine the quality (quality) of the mortar that has been installed on the wall work, it will be difficult to carry out because it has dimensions of less than 5 x 5 x 5 cm which is the minimum sample size requirement for the compressive test. It is necessary to carry out a test that has a close correlation (relationship) with the compressive strength test and the chemical element forming the mortar so that when the mortar is installed in the building element, the inspection only needs to take a sample and see the chemical constituents. From the research results obtained mortar-forming elements include: Al₂O₃ - SiO₂ - CaO - Fe₂O₃ which have different percentages based on the compressive strength of the mortar