SULPHOMINERAL ADDITIVES FOR NON-SHRINK AND SELF-STRESSING CEMENT CONCRETES

Application:
manufacturing of new expansion mineral additives based on natural and man-made raw materials to produce cement grouts and concretes with compensated shrinkage and autostressing up to 3,0–4,0 MPa
Description:
– autostressing ……………………………………………………………..3.0–4.0 MPa
– linear increase of the volume at the age of 28 days ………..0.05–0.2 %
Advantages:
during the sintering of raw mixture based on natural and man-made raw materials the synthesis of sulfoferritic and sulfoalumoferritic phases with their hydration provides expansion process of cement bricks and autostressing of the concrete. Product costs are 1.5–2.5 times less than costs of analogues. Besides, there is a large-scale and environmental friendly waste utilization.