Review study on the effect of metal additives on some properties of high-strength self-compacting concrete

Abstract

Self-compacting concrete (SCC) is an advanced type of concrete with a very high workability; so that it can flow through the structural elements such as the reinforcing detector under the influence of its own weight, and avoid the occurrence of segregation or pleeding without the need to use compaction tools. this paper presents a set of the latest studies on the production of high-strength self-compacting concrete. Moreover, has found that most researchers agree that it is difficult to produce self-compacting concrete without additives that reduce water content. As Many studies have proven the success of those that depend on Polycarboxylate Ether and Modified Carboxylate Ether (MPCE), and the / metal additives (Pozolana or inert) work to improve the granular gradient, which is important to ensure the homogeneity of self-compacting concrete. Some may tend to replace cement with Pozzolana material or integrate an inert material and another Pozolana. Where the first improves the operation of the mixture and the other improves pressure, resistance or metal additives might use as a filler in order to reduce Cement content and improvement of viscosity of concrete. In all cases, and We may all agree that the use of metal additives has many benefits for the concrete itself and for the environment.