Aggressive Environment Performance of Low Energy Cements Containing Fly Ash

Authors : H Süleyman GÖKÇE, Osman ŞİMŞEK

Pages : 19-29

Doi:10.35378/gujs.731497

View : 24 | Download : 7

Publication Date : 2021-03-01

Article Type : Research Paper

Abstract :In this study, compressive strength performance of boron active belite cement containing fly ash at the ratios of 0, 10, 20, and 30% insert ignore into journalissuearticles values(by weight of cement); is researched against aggressive environments; sea water, 5% sodium sulphate solution, and 5% ammonium nitrate solution in addition to tapping water. Alternative low energy cement i.e., Portland-composite cement was used and its results were compared with those of boron active belite cement. Early strength losses insert ignore into journalissuearticles values(reaching up to 40%); of the boron active belite cement with incorporation of fly ash up to 30% were found to be less pronounced than those insert ignore into journalissuearticles values(reaching up to 51%); of Portland-composite cement in tapping water. Although, the losses were highly compensated with the prolonged curing period insert ignore into journalissuearticles values(90 days);, boron active belite cement and Portland-composite cement kept their losses up to 14% and 36%, respectively. Residual mechanical properties insert ignore into journalissuearticles values(reaching up to 67%); of boron active belite cement against aggressive environments were found almost similar to those of Portland-composite cement in presence of 30% fly ash. In conclusion, the study shows that belite cements with low fly ash contents can be a reasonable alternative for specific applications such as mass concrete, hot weather concreting especially in aggressive environments.
Keywords : Active belite cement, Composite cement, Fly ash, Compressive strength, Aggressive environments