ISSUES OF IMPROVEMENT LEAKS FIBER-REINFORCED CONCRETE ON COMPOSITE BINDERS
Developed composite binder obtained by co-grinding of cement (55%), ash acid composition (40%) and limestone (5 %) to the specific surface area of 550 m<sup>2</sup>/ kg, the activity of 77.3 MPa. It was found that the combined influence of mechanical activation increases the pozzolanic activity of the acidic ashes, has a catalytic effect on the reaction activity of the surface of ash and sand. It was found that the addition of fly ash and waste crushing limestone composite binding for all lower dosages and water permeability of concrete. Designed on the composition of the fiber-reinforced concrete composite binder. At 1.6% of reinforcing steel anchoring a fiber can be obtained in terms of the maximum physical and mechanical properties (R - 100.9 MPa). It was found that the developed concrete provides an effective diffusion coefficient D, it helps protect the premises from the toxic effects of expanded polystyrene.