Strengthening of pre-loaded RC beams using sustainable ambient-cured FA/GGBS geopolymer mortar DOI Creative Commons
Abdullah Y. Osman, Mohammad R. Irshidat

Emergent Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 17, 2024

Abstract This study investigates the effect of using ambient-cured geopolymer mortar (GPM) made fly ash (FA) and ground-granulated blast furnace slag (GGBS) as a sustainable strengthening material on flexural behaviour pre-loaded reinforced concrete (RC) beams. Ten RC beams were prepared, then eight them loaded at different levels strengthened with depths FA/GGBS-based GPM. The investigated parameters in this include pre-loading level depth ultimate moment capacity, midspan deflection, initial stiffness, toughness, mode failure. obtained results showed that 50% GPM 25 mm contributed to improving capacity by about 10%. It was also found strengthen thick layer affected negatively. Finally, an analytical model provided ACI code implemented predict instantaneous deflection GPM-strengthened

Language: Английский

Study on the solidification/stabilization of Cu(II) and Cd(II)-contaminated soil by fly ash-red mud based geopolymer DOI

Haojie Hao,

Xiaofeng Liu, Xiaoqiang Dong

et al.

Construction and Building Materials, Journal Year: 2025, Volume and Issue: 469, P. 140515 - 140515

Published: Feb. 22, 2025

Language: Английский

Citations

1
Adhesion of Asphalt to Natural Aggregates and Sanitary Ceramic Waste DOI Open Access
Wojciech Andrzejuk, Agnieszka Woszuk, Danuta Barnat-Hunek

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(6), P. 1201 - 1201

Published: March 7, 2025

Research was conducted to improve our knowledge pertaining the physical processes happening at interfaces between solids (i.e., asphalt and aggregate) determine appropriate choice of as well additives enhance longevity bituminous mineral mixtures. The lowest mean contact angle CA with 140 °C obtained for dolomite 50/70 + W (45.0°) 29.5% lower than highest granodiorite 45/80-55 (63.8°). SFE value aggregate, it 14.3% amounted 47.68 mJ/m2. In case waste ceramic detachment stress (0.77 MPa) using modified without adhesives, 120 °C, 69.2% (2.50 when samples 160 °C. Statistically, temperatures both aggregate had most considerable influence on asphalt–to-aggregate adhesion, measured by asphalt, pull-off. employed defined its roughness characteristics, also importance, but a lesser degree. type smallest impact is crucial remember that viscosity strongly influenced temperature.

Language: Английский

Citations

0
Strengthening of pre-loaded RC beams using sustainable ambient-cured FA/GGBS geopolymer mortar DOI Creative Commons
Abdullah Y. Osman, Mohammad R. Irshidat

Emergent Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 17, 2024

Abstract This study investigates the effect of using ambient-cured geopolymer mortar (GPM) made fly ash (FA) and ground-granulated blast furnace slag (GGBS) as a sustainable strengthening material on flexural behaviour pre-loaded reinforced concrete (RC) beams. Ten RC beams were prepared, then eight them loaded at different levels strengthened with depths FA/GGBS-based GPM. The investigated parameters in this include pre-loading level depth ultimate moment capacity, midspan deflection, initial stiffness, toughness, mode failure. obtained results showed that 50% GPM 25 mm contributed to improving capacity by about 10%. It was also found strengthen thick layer affected negatively. Finally, an analytical model provided ACI code implemented predict instantaneous deflection GPM-strengthened

Language: Английский

Citations

0