Mohd Warid Hussin

TL;DR: In this paper, the authors investigated the use of coal ash in concrete to replace sand with bottom ash waste and cement with fly ash and concluded that those experimental concrete mixes can be used in several structures (foundations, subbases, pavements, etc.) which will minimize the cost, energy and environmental problems to a great extent.

TL;DR: In this article, the performance of geopolymer concrete when exposed to 2% sulfuric acid solution for more than a year was compared to OPC concrete which is attributed to a more stable cross-linked aluminosilicate polymer structure formed in the geopolymers concrete.

TL;DR: In this paper, the authors evaluated IOT as a replacement for river sand in concrete and compared with the result of conventional concrete using a statistical fitted linear regression analysis on compressive strength to evaluate the significant level of concretes containing IOT.

TL;DR: In this paper, the influence of different curing temperatures, calcium content and different types of alkali activator solutions on properties of geopolymer mortars (GPM) containing industrial and agricultural wastes, such as granulated blast furnace slag (GBFS), fly ash (FA) and palm oil fuel ash (POFA), was reported.

TL;DR: In this paper, five different cell concentrations of Bacillus megaterium (10 × 105 to 50 × 105 cfu/ml) were introduced in structural concrete to achieve the optimum concentration of bacteria.