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RISEffect of Sodium Sulfate Activator on Compressive Strength and Hydration of Fly-Ash Cement Pastes
Publisher: ASCE
Abstract: In the study, the effect of 4% sodium sulfate (Na2SO4) as an activator on cement pastes with 0%, 20%, and 40% fly-ash replacements and a low water-to-cementitious materials ratio of 0.30 was investigated. The investigation ...
Performance and Microstructural Evaluation of Rice Husk Ash–Ground Granulated Blast Furnace Slag–CFBC Fly Ash Mixtures Produced as an Eco-Cement
Publisher: ASCE
Abstract: This study was designed to evaluate the performance and microstructure of eco-cements containing rice husk ash (RHA), ground granulated blast furnace slag (GGBFS), and circulating fluidized bed combustion (CFBC) fly ash ...
Properties and Microstructure of Low-Strength Recycled Concrete Aggregate Treated Using Cement–Fly Ash Slurry with Various Concentrations and Soaking Durations
Publisher: American Society of Civil Engineers
Abstract: Utilizing recycled concrete aggregate (RCA) is a countermeasure to address the scarcity of landfills and the depletion of natural aggregates. Surface modification techniques have been proposed and implemented to improve ...
Effect of Cement Type and Water-to-Binder Ratio on k-value of Low-Calcium Fly Ash for Concrete Compressive Strength
Publisher: ASCE
Abstract: The present study assessed the effect of cement type and water-to-binder ratio (W/B) on the cementing efficiency factor (k-value) of low-calcium fly ash (FA) for the compressive strength of concrete in a chemical approach. ...