Abstract
Self compacting concrete is defined as concrete that has ability to flow under its own weight. Compaction process of self compacting process is done without any external vibrations. Generally strength values for SCC is higher than normal concrete mix due to its mix proportions. The concrete material is made with composition of materials like cement, sand, coarse aggregates and water. Strength and workability are the important properties of the concrete before construction any structure, basically strength of the concrete member depends upon the amount of the load which comes to the concrete member. As the world moves forward with technological advancements, it has seen a paradigm shift towards more sustainable growth. Many studies even promote zero wastage by recycling and reusing most of the by-products. Now a waste plastic is increasing due to increasing the population in the world that will affect the environmental parameters which pollutes the earth, air and water if that happens the total earth will polluted. To decrease this effect reducing the generation of waste materials is important but in practical it is not possible to decrease the waste materials with this current population of the word. Alccofine is a new generation material that will increase the strength of self compacting concrete. Alccofine is finer material than hydraulic materials like cement, fly ash etc, the alccofine is developed in control conditions with specified equipments to get make finer particles.
In the present paper an experimental investigation was conducted to study the workability and strength properties of concrete by using plastic waste and alccofine as replacement materials for Fine aggregate and cement respectively. The percentage of plastic waste used as 0%, 2.5%, 5%, 7.5% and 10% of Fine Aggreagate and alccofine used is 5% for all mixes for M35 grade of concrete mix. The comparison of results like workability and strength was made with and without using alccofine.

Key words: Self compacting concrete, alccofine, plastic waste, workability, strength