Study on physical, morphological and strength properties of Jana Manjung ash mixture

Abstract

Raw material like coal has been used in Malaysia to generate or produce electricity since 1988.The burning of coal producing excessive waste and directly cause of significant economic and environmental problem. The ash was not managed properly and was dumped in waste pond. Like in Manjung,Perak ,the ash was transfer from the factory to the unproductive land and long-term financial burden. This study focuses on some properties of fly ash, bottom ash and mixture of them from Manjung power plant. The properties are include in characteristics studied are compaction behaviour, strength properties and morphological properties. Strength properties of the samples can be carried out through unconfined compression test (UCT).The physical properties involved the compaction test and grain sieve analysis. Morphology and mineralogy of coal ash mixtures are carried out using the X-Ray Diffraction(XRD) and Scanning Electron Microscope(SEM).The samples undergoes compaction, sealed and cured for 0 and 28 days before further analysis. The friction angle for the XRD laboratory obtained from range 24°-36°.Morphological showed the increasing number of irregular particles and the bonding between the components is strong as age of curing period increase. There are several crystalline compound exists in Manjung power plant such Quartz ,Coesite, Berlinite .It conclude that the coal ash mixtures can be applied in construction embankment ,roads and fill behind retaining structures.