Abstract
Abstract The attempt to increase the service life of structures in severe exposure conditions by using supplementary cementitious materials is forcing researchers to study the performance characteristics of cement concretes containing various mineral admixtures. Moreover, the necessity to reduce the carbon dioxide emission due to manufacture of cement has been laying emphasis on utilizing alternate binding materials. The use of nano particles in cement concrete to reduce the pore volume and enhance the performance characteristics has been quite significant in the recent period. In the present study self-compacting concrete mixes containing flyash (FA), silica fume (SF) and nano Titanium oxide (TiO2) have been assessed through the evaluation of mechanical and durability characteristics. A total of ten concrete mixes have been studied with various combinations of ternary and quaternary blended cements. The concrete mixes were formulated in three sets, where the first set and second set consists of control concrete and ternary blended cement concretes containing combinations of FA-TiO2 and SF-TiO2 respectively. The third set of concrete mixes contain quaternary blended cement containing FA, SF and TiO2. The performance characteristics were evaluated by determining compressive strength, split tensile strength, absorption characteristics, resistivity and rapid chloride penetrability.
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