STUDY ON MECHANICAL PROPERTIES OF RED MUD AS A PARTIAL REPLACEMENT OF CEMENT WITH HYDRATED LIME FOR M40 GRADE CONCRETE WITH SUPERPLASTICISER

Sowmyashree T, Arpitha D J, Manjunath C S, Siddu Karthik C S

Abstract: Now construction industry is full advanced due to which within short period of time tremendous increase in the utilization of cement and concrete for various construction activities. It is expected that the same rate will continued in the next decade and this may cause effects to the environment. Availability of raw material required for manufacturing of cement and production of concrete are less and require more energy for production. This increased demand cause fast depletion in resources. To overcome this situation it is very important to utilize the industrial waste materials and by-products for the manufacture of cement and in concrete construction. Here in this work by considering the cementations behaviour of red mud, an experiment was carried out to replace the Portland Cement by red mud and hydrated lime in different grades of concrete for variable percentages and there effects on the strength of the concrete. Here an attempt has been made to produce different grades of concrete using huge industrial waste such as red mud as a partial replacement of cement with the hydrated lime. This project presents the results of investigation on production of concrete members using a combination of materials which predominantly includes red mud and lime. The present study is mainly focused on the compressive strength, split tensile strength, flexural strength properties of concrete, which are the important parameters to be studied in concrete production of different proportion of raw materials. However, when used in combination with 30% red mud, cement and 5% lime the composites shows significant compressive strength of 50.05 N/mm2for M40 grade of concrete. Tensile strength of.98 N/mm2for M40 grade of concrete. Selected combinations of mixes were later used to produce beam of size 500 x 100 x 100mm. These beams are tested for flexural strength of results 3.29 N/mm2for M40 grade of concrete.

Keywords: Red Mud, Hydrated Lime, Grade Concrete, Superplasticiser

DOI: https://doi.org/10.15623/ijret.2016.0504009