DETERMINATION OF OPTIMUM DOSAGE OF POLY CARBOXYLIC ETHER IN CONCRETE

Super plasticizers are used as dispersants to avoid particle segregation and to improve the flow characteristics of suspensions such as in concrete application. It reduces the water to cement ratio without affecting the workability of the mixture. It reduces water content by 20% during slump mixture and also increases paste quality whichv yields higher compressive and flexural strength of the concrete. It is important to note that excess amount of Super plasticizers added to the concrete will leads to reduction in strength of concrete. In this project the strength of concrete assessed with different percentages of Polycarboxylic ether added with concrete such as 0.5%, 1%, 1.5% and 2% by the weight of cement added in the concrete. Eventually the Compressive strength test, Split tensile strength test and Flexural strength test has been conducted and the results compared with conventional concrete to estimate the optimum dosage level of Polycarboxylic ether to be added to the concrete without affect the strength. .