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Investigation of waste clay brick as partial replacement in geopolymer binder
Highlights Investigated the use of waste clay brick (WCB) powder blended with fly ash and slag as a binder in developing geopolymer mortar. Fresh properties, mechanical properties, and durability performance of mortar was investigated. WCB blended binders showed better compressive strengths than binders with only fly ash and slag. Mortar with WCB in the binder showed better resistance to external sulfate attack.
Abstract This study investigates waste clay brick (WCB) as partial binder replacement in geopolymers with fly ash and/or slag. The properties investigated include setting time, flowability, strength, water absorption, volume of permeable voids (VPV), water absorption rate, effect of long-term immersion in water, and sulfate attack. For all WCB-based geopolymer mortar samples tested, the short- and long-term compressive strengths remained between 42 MPa and 62 MPa. Water absorption and VPV were found to be between 6.4–7.1 % and 11.9–13 %, respectively. Compared to OPC, geopolymers investigated here showed enhanced resistance to sulfate attack considering both post-exposure length expansion and strength deterioration.
Investigation of waste clay brick as partial replacement in geopolymer binder
Highlights Investigated the use of waste clay brick (WCB) powder blended with fly ash and slag as a binder in developing geopolymer mortar. Fresh properties, mechanical properties, and durability performance of mortar was investigated. WCB blended binders showed better compressive strengths than binders with only fly ash and slag. Mortar with WCB in the binder showed better resistance to external sulfate attack.
Abstract This study investigates waste clay brick (WCB) as partial binder replacement in geopolymers with fly ash and/or slag. The properties investigated include setting time, flowability, strength, water absorption, volume of permeable voids (VPV), water absorption rate, effect of long-term immersion in water, and sulfate attack. For all WCB-based geopolymer mortar samples tested, the short- and long-term compressive strengths remained between 42 MPa and 62 MPa. Water absorption and VPV were found to be between 6.4–7.1 % and 11.9–13 %, respectively. Compared to OPC, geopolymers investigated here showed enhanced resistance to sulfate attack considering both post-exposure length expansion and strength deterioration.
Investigation of waste clay brick as partial replacement in geopolymer binder
Migunthanna, Janitha (author) / Rajeev, Pathmanathan (author) / Sanjayan, Jay (author)
2022-12-16
Article (Journal)
Electronic Resource
English
Waste Clay Brick as a Part Binder for Pavement Grade Geopolymer Concrete
| Springer Verlag | 2024
Waste Clay Brick as a Part Binder for Pavement Grade Geopolymer Concrete
| Springer Verlag | 2024