DEVELOPMENT OF GEOPOLYMER CONCRETE BY INCORPORATING WATER LEACH PURIFICATION RSIDUE (WLP) WITH MICROWAVE INCINERATED RICE HUSK ASH (MIRHA) AND FLY ASH-BASED

The production of hazardous waste materials from industrial processes has cause major concern on the environment due to their intractable, harmful and costly disposal methods. Therefore, a new type of geopolymer composites are synthesized from three different industrial waste material namely water leach purification (WLP) residue, rice husk ash and fly ash as one of the alternative solution for the issues. The strength development of the geopolymer concrete produced at varying mix design proportion, different curing age and different concentration (in terms of Molar) of alkaline activator was studied in this research. It is to investigate the optimum synthesis condition based on the compressive strength of the specimen. Prior to the concreting work, few sets of characterization tests specifically X-Ray Fluorescence Analysis (XRF), Sieve Analysis test and Laser Diffraction Particle Sizing test on the WLP was carried out for selection of sample with optimum condition for geopolymer concrete production. The highest compressive strength achieved by the specimen activated with NAOH 8 M is 17.94 Mpa after 28th days of curing in which the first 48 h was 80°C oven curing.