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RISXRD and Unconfined Compressive Strength Study for a Qualitative Examination of Calcium–Arsenic Compounds Retardation of Cement Hydration in Solidified/Stabilized Arsenic–Iron Hydroxide Sludge
Publisher: American Society of Civil Engineers
Abstract: This study investigates the adverse effects of synthesized arsenic–iron hydroxide sludge, the by-product of arsenic removal by coagulation with ferric chloride, on unconfined compressive strength (UCS) and cement hydration ...
Leaching Behaviors of Arsenic from Arsenic-Iron Hydroxide Sludge during TCLP
Publisher: American Society of Civil Engineers
Abstract: The toxicity characteristic leaching procedure (TCLP) is normally used to evaluate if sludge should be managed as hazardous waste. This study examines immobilization mechanisms of arsenic onto arsenic-iron hydroxide sludge, ...
Characteristics and Performance of Cement Modified–Base Course Material in Western Australia
Publisher: American Society of Civil Engineers
Abstract: Hydrated cement–treated crushed rock base (HCTCRB) is produced by adding 2% Portland cement (by mass) to a standard crushed rock base (CRB) at an optimum moisture condition. The unique production process for HCTCRB is ...
Recycled Concrete Aggregates in Roadways: Laboratory Examination of Self-Cementing Characteristics
Publisher: American Society of Civil Engineers
Abstract: This paper examines the self-cementing phenomenon of the road construction material known as recycled concrete aggregate (RCA). Two RCA types were selected as study materials: (1) high-grade RCA (HRCA), a quality RCA ...