The results application of roller compacted concrete test using the additives combination (s + t + p) at the site for Nuoc Trong dam project

Abstract

    The studying used a combination of the new generation Super-plasticizer retarding additives (S) + Fly ash (T) + Polymers (P): (S + T + P) for Roller Compacted Concrete Nuoc Trong dam has achieved the compressive strength at 90 days of age (29.7 ÷ 32.1) MPa, Waterproof level W8. Meanwhile the cement volume decreased to 55 kg/m3 RCC, corresponding to the adiabatic temperature decrease about 8.2°C to compare with the original RCC design of Nuoc Trong works.

   The using of combination additives (S + T + P) for RCC will improve some of the technical properties of RCC using for dams (enhanced waterproof, enhanced compressive strength, and reduced adiabatic temperature) its highly effective and feasible in Vietnam condition.