Light weight concrete (Partial replacement of coarse aggregate using polystyrene beeds)

The project reports the result of light weight concrete (partial replacement of coarse aggregate using polystyrene beads). With increase in demand for construction materials, man has improved a lot in construction techniques of structure. In old ages structures were constructed with heavy materials but in the modern age of construction old techniques are being more costly due to heavy loading.so the use of lightweight materials are startedto reduce the cost and weight of structures. Now, a days coarse aggregate is replaced by polystyrene beads either partially,or fully depend upon the requirement of the work or structure. The characteristics of new lightweight concrete consisting of polystyrene, sand, cement, coarse aggregate and water. This work shows the results of an experimental study on various workability and durability tests on concrete containing Polystyrene as a replacement of coarse aggregate such as compressive test, split tensile test and flexural strength. For this research work M20 grade is used and the tests are conducted for various proportions of Polystyrene with coarse aggregate 5%, 10%, 15%, 20%, 25%. The obtained results were compared with those of conventional concrete. The results showed that the amount of polystyrene beads incorporated in concrete influences the properties of hardened concrete. At 28 days, it was found that compressive strength of 5%, 10%, 15%, 20% and 25% EPS incorporated concrete strengths were 91%, 77%, 71%, 63% and 57%, respectively when compared to concrete with no EPS case.