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RISReaction Products, Microstructure, and Leaching Potential of Alkali-Activated Mine Tailings–Slag Binders
Publisher: American Society of Civil Engineers
Abstract: AbstractThis paper evaluates blends containing large amounts of mine tailings (MT; up to 80
percentage by mass), along with slag, activated using alkali silicates of different
activation parameters (A2O to source material ...
Finite-Element Modeling Framework for Mechanical Response of 3D-Printed Concrete: Elucidating Directional, Interface, and Fiber Effects
Publisher: American Society of Civil Engineers
Abstract: AbstractThe mechanical behavior of three-dimensional (3D)-printed concrete is a complex interplay
of the concrete’s intrinsic properties (rheology and mechanics), and printing parameters
(speed and layer dimensions), and ...
Rheology-Based Protocol to Establish Admixture Compatibility in Dense Cementitious Suspensions
Publisher: American Society of Civil Engineers
Abstract: Chemical admixtures are often added to concentrated cementitious suspensions in an effort to adjust their (1) rheology, i.e., yield stress and viscosity; (2) time of set, i.e., when plasticity is lost; and ...
Assessing Energy Savings: A Comparative Study of Reflective Roof Coatings in Four US Climate Zones
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: High albedo roof coatings are designed with the specific aim of reflecting a greater proportion of solar radiation compared to traditional roofing materials, thereby lowering the solar energy absorption into the roof. In ...
Crack Healing in Cementitious Mortars Using Enzyme-Induced Carbonate Precipitation: Quantification Based on Fracture Response
Publisher: American Society of Civil Engineers
Abstract: This paper evaluates a nonmicrobial means of carbonate precipitation to heal cracks in concrete. Enzyme-induced carbonate precipitation (EICP) that relies on plant-derived urease enzyme is used to catalyze the reaction ...