An Experimental Study on Red Mud Based Geo Polymer Mortar with GGBS, M Sand and Metakaolin

The current research work is to find the possibility of replacing the conventional binder by Red mud completely in the production of geopolymer technology based mortar mix. Commercial garbage products have a negative environmental impact as a result of storage problems, waste disposal problem and causing hazardous impact on the environment. By assessing the effectiveness of utilisation of red mud in order to resolve these issues in addition of GGBS, M sand and Metakolin as partial quantities in the geopolymer mortar production. The mix is chemically activated with alkaline activator to influence geopolymerisation with NaOH of considerably lesser concentration of 2Molarity. The produced mortar was checked against compressive strength and water absorption as per IS 3495:1992. Red mud, GGBS and Metakaolin are used as a binder material. The compatibility of raw materials are checked in order to get flowable mix as it is need not be compacted. The Process employed an alkaline activator. Red mud used in varied percentage from 30 to 60%. Metakaolin is used upto maximum value of 10% in the composition to make the mix economically viable. GGBS was used for strength enhancement of produced mix. Research proved that geopolymer mortar mix can be produced with CS from 14.1 Mpa to 38.1 Mpa by using redmud content from 40 to 60% with maximum water absorption of 18.9%. Optimum percentage of raw materials combination is obtained and to study the strength of mortar mix, masonry prism test was conducted. The results proved that Red mud, GGBS, M sand, and Metakaolin can be geopolymerized and used as a sustainable alternative to traditional mortar. This would be the solution for waste disposal issues of many industrial by-products across the world, simultaneously fulfil the current increased demand of construction materials due to rapid urbanisation in the world.