Chamila Gunasekara

TL;DR: In this article, the authors compared the performance of AAS concrete and low calcium fly ash geopolymer (FAGP) concretes up to 540 days and found that AAS had higher compressive and tensile strength, elastic modulus and lower permeation characteristics than FAGP concrete.

TL;DR: In this article, the workability of a geopolymer was investigated and the negative zeta potential of fly ash was identified as assisting gel formation with the smaller the negative zero potential of the fly ash, the more gel formation and high compressive strength observed.

TL;DR: In this paper, a detailed investigation of the permeation properties of four different fly ash geopolymer concretes was carried out up to one year of age, where the packing density coupled with the pore size distribution were observed to determine the concrete's permeation and diffusion characteristics.

TL;DR: In this paper, a comprehensive review summarizes up-to-date literature on HVFA concrete with more than 50% of cement replacement using ASTM Class F low calcium fly ash.

TL;DR: In this paper, the long term corrosion condition of embedded rebar in fly ash geopolymer concretes containing cast in chlorides (0−5%) subjected to wet-dry cycles, together with specimens exposed to ponding in 3% NaCl were examined.