Research of the Possibility of Creation of a Multipurpose Complex Additive for Dry Mixtures

The main objective of the study was to obtain an effective component composition of a dry building mixture with the use of a complex additive. In this work the specific surface area of the anhydrite binder was determined. It is optimal for providing the mixtures with the required characteristics. The manufacture of experimental compositions was made, according to pre-selected recipes. From them through the performed tests, the most effective was identified. The composition of the modified anhydrite binder was established. It had to match the reference requirements for filling mixtures. The conclusion was formulated about the ability of additives to influence the technological and physical-mechanical properties of the filling mixtures.