Influence of Different Pozzolan Types upon the Effect of Plastifying Admixture

摘要: This paper presents the results of an investigation where effect lingo-sulphonate addition on properties cement paste and concrete, which incorporated pozzolans has been studied. Measurements adsorption zeta-potential were made systems pozzolans/Ca(OH)2-solutions/ lingo-sulphonate, upon heat evolution from pastes containing ligno-sulphonate. The indicated that was dependent type quality pozzolan used. When testing in above measurements showed to have pointed direction but not magnitude, concrete such as water demand, air content, setting time strength development affected. They also gave basis for explanation most phenomena observed concrete.