Mechanical Properties of Sustainable Foam Lightweight Soil at Varying Curing Temperatures and Its Early-Stage Quality Control

Sustainability, Journal Year: 2025, Volume and Issue: 17(4), P. 1343 - 1343

Published: Feb. 7, 2025

Sustainable foam lightweight soil (FLS) with the introduction of solid waste-based binders and dredged mud has shown high engineering environmental value in expressway reconstruction extension projects. Accelerated testing through high-temperature curing is considered a crucial method for early-stage assessment sustainable FLS construction quality. This study aims to explore temperature effect on strength development different mix proportions applicability accelerated method. Strength tests were first conducted kaolin clay-based three wet densities water contents under temperatures (T), mud-based was also tested broaden applicability. Results indicate that higher T increased density significantly enhance at any age, while content reduces it. The proposed recommended this considering requirements are 800 kg/m3 100%, respectively. Moreover, effectiveness aging demonstrated by fact no dramatic loss occurs due expansion collapse elevated up 50 °C. On basis, prediction model based concept activation energy both effect. Changes have minimal impact parameters, but variations type require updating these parameters ensure accuracy. Finally, an early quality control introduced applying field

Language: Английский

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Study on solidification modification and engineering characteristics of solid waste-based cementitious materials on pile spoil

Journal of Engineering and Applied Science, Journal Year: 2025, Volume and Issue: 72(1)

Published: Feb. 21, 2025

Abstract In view of the problem difficult treatment pile spoil in infrastructure construction, solid waste-based cementitious material was designed and used as solidifier for spoil. The modification on studied from aspects physical chemical characteristics, microstructure, engineering characteristics. results show that material, primarily composed granulated blast furnace slag (GBFS) powder, steel dust, desulfurization gypsum, exhibits excellent synergistic hydration effects. Under action alkaline solution, a large amount Ca 2+ , [SiO 4 ] 4− [AlO 5− SO 2− are released system, to form C-S–H, Ca(OH) 2 N-A-S–H, AFt, other products through series reaction processes. With slag/(steel slag) ratio 6:3, S631 shows superior hardening performance, achieving compressive strengths 15.9 MPa, 25.7 49.8 MPa at 3, 7, 28 days, respectively. Solid further treat solidified begins harden within about 5 16 h loses its plasticity between 67.5 84.1 h. higher dosage solidifier, quicker rate, with containing 10% reaching unconfined 0.68 1.13 7 active silicoaluminate minerals produce C-S–H gels solution-precipitation reaction, which connects mineral particles Macroscopically, it is manifested soil generation strength. terms use reduces liquid plastic limits while increasing index, optimum moisture content, maximum dry density. experiments simulating influence compaction degree wheel loading rate strength actual roadbed engineering, has shown better indicating improved optimized characteristics

Language: Английский

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Effect of Current Loading Path on Slurry Stabilization Using Horizontal Electroosmosis And Vacuum Preloading Synergistic Method

Published: Jan. 1, 2025

Language: Английский

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Efficiency of physicochemical combined method for solidifying/stabilizing heavy metal-contaminated slurry-like mud at high water content

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 457, P. 139481 - 139481

Published: Dec. 1, 2024

Language: Английский

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