Properties of Self-Compacting Mortar Containing Slag with Different Finenesses

It is well established that Self-Compacting Concrete (SCC) contains large amounts of fines including mineral admixtures, such as fly ash and slag, in order to avoid segregation increase cohesion. The use these materials concrete reduces CO2 emissions contributes towards sustainable construction. To overcome the negative effect slag on strength development was ground three finenesses. Therefore, this paper examines rheological, compressive strength, total autogenous shrinkage capillary water absorption Mortars (SCM) containing granulated blast furnace Slag (S). A seven mortar mixes were prepared. control mix had a proportion 1 (cement): 1.8 (sand): 0.38 (water). In other mixes, cement partially replaced with 15% 30% different fineness 350, 420, 500 m2/kg. constituents remained unchanged. Testing included slump flow, V-funnel flow time, yield stress viscosity, shrinkage, absorption. presence found reduce plastic viscosity SCM mixtures content increase. higher (specific surface) less rheological parameters (i.e. viscosity). results show also reduction at early ages curing slag. However, long-term, than mortar. Generally, there an Doi: 10.28991/cej-2021-03091694 Full Text: PDF