HIGH PERFORMANCE CONCRETE FOR REPAIR OF SEWER NETWORK

High performance concrete often consists of ternary mixes of silica fume, fly ash or other pozzolans, and Portland cement. However, the specification of the proportions of these components remains uncertain [1-2]. High performance concrete have found their place in construction and compete with other materials for certain features like high strength, long term durability in severe conditions. In fact, high performance concrete has been designed in order to improve durability and provides easy handling, placement and compaction [3-4]. In this research, a high performance concrete with unique specifications has been studied. One of the most important properties of this type of concrete is its low permeability against different aggressive agents, and reduction of cement content in comparison with other high performance concretes.

Keywords:

high performance concrete , fly ash , silica fume , permeability