Design and Development of High Strength Heavyweight Concrete Using SBR

Heavyweight concrete is used in many applications such as bascule and lift bridges, radiation shielding structures in nuclear plants etc. In this study an industrial waste material produced by shot blasting of metallic chains is being used as heavy material in concrete due to its high density. The material is called as Sand Blast Residue (SBR). In this attempt some tests were carried to check the compability of SBR with cement and aggregate. The concrete mix as per IS-10262-(2009) is used for M20 grade of concrete and 50% sand is replaced with SBR. The workability obtained in this test is 25 mm slump and the strength is 23 MPa. These results were satisfactory as compared to control mix. Further it is planed to design a concrete as per D.O.E (British Standard) to acheive M60, M70, and M80 grade of concrete replacing fine aggregates with SBR. The replacement starts from 0 - 100% with fraction of 20%. Due to presence of high iron in SBR some durability tests also would be conducted with compressive and tensile tests. Index Terms— Admixture, Aggregates, Cement, Compression test, Concrete, Durability tests, Mix Design, Slump test, Tensile test,High density, High strength . ——————————  ——————————