Mechanical and microstructural performance of engineered geopolymer cementitious composites embedded with activated slag
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
A study was undertaken to calculate the efficacy of Engineered Geopolymer Cementitious Composites (EGCC) mixes withincorporation of activated slag and sisal fibers. Four different Composition of Concrete such as Slag Concrete (SC), CompositeConcrete (CC), Green Concrete (GC), and Geopolymer Concrete (GPC) were cast and tested for their mechanical propertiessuch as workability, compressive strength, and young’s modulus. Also, microstructural performance of these concretecompositions was studied using SEM and XRD. In Slag Concrete (SC) 30% clinkers, 70% activated slag was incorporated. In Composite Concrete (CC) 30% clinkers, 35% flyash, 35% activated slag was mixed. In Green Concrete (GC) 50% flyashand 50% activated slag was added. And in Geopolymer Concrete (GPC) 100% flyash was mixed into the concrete. Themixed compositions were activated by adding alkaline activator solution. All the concrete compositions were compared withNormal Concrete (NC) specimens. And the mixed cementitious concrete specimens were blended with 50% coarse aggregateand 50% Recycled Coarse Aggregate (RCA). Quarry Rock Dust (QRD) was used as fine aggregate in all composites. Thetest results reveal that within the examined concrete compositions, Composite Concrete (CC) with 30% clinkers, 35% flyash,35% activated slag exhibit excellent workability and strength characteristics.
Abstract
A study was undertaken to calculate the efficacy of Engineered Geopolymer Cementitious Composites (EGCC) mixes withincorporation of activated slag and sisal fibers. Four different Composition of Concrete such as Slag Concrete (SC), CompositeConcrete (CC), Green Concrete (GC), and Geopolymer Concrete (GPC) were cast and tested for their mechanical propertiessuch as workability, compressive strength, and young’s modulus. Also, microstructural performance of these concretecompositions was studied using SEM and XRD. In Slag Concrete (SC) 30% clinkers, 70% activated slag was incorporated. In Composite Concrete (CC) 30% clinkers, 35% flyash, 35% activated slag was mixed. In Green Concrete (GC) 50% flyashand 50% activated slag was added. And in Geopolymer Concrete (GPC) 100% flyash was mixed into the concrete. Themixed compositions were activated by adding alkaline activator solution. All the concrete compositions were compared withNormal Concrete (NC) specimens. And the mixed cementitious concrete specimens were blended with 50% coarse aggregateand 50% Recycled Coarse Aggregate (RCA). Quarry Rock Dust (QRD) was used as fine aggregate in all composites. Thetest results reveal that within the examined concrete compositions, Composite Concrete (CC) with 30% clinkers, 35% flyash,35% activated slag exhibit excellent workability and strength characteristics.