Mechanical, Chloride Resistance, and Microstructural Properties of Basalt Fiber-Reinforced Fly Ash–Silica Fume Composite Concrete DOI Open Access

Yishan Li,

Yan Liu, Wei Zhang

et al.

Minerals, Journal Year: 2025, Volume and Issue: 15(4), P. 348 - 348

Published: March 27, 2025

Basalt fiber has advantages in enhancing the mechanical properties of concrete, but comprehensive effects content and length, as well relationship between impermeability performance, remain unclear require systematic verification. This study aims to quantify basalt length on (compressive strength, tensile flexural strength) concrete permeability performance reveal underlying mechanisms. The macroscopic results indicate following: (1) optimum compressive strength fiber-reinforced is 1.5 kg/m3; (2) 1.0 (3) most significantly improved when reaches kg/m3 18 mm. During tests, a nonlinear functional exists two indicators, electric flux chloride ion migration coefficient. Microscopic analysis showed that mineral admixtures (fly ash silica fume) promoted secondary hydration reaction cementitious material, generating significant amount C-(A)-S-H gels increase density matrix. After incorporating fibers, they tightly envelop matrix, reducing number internal voids achieving synergistic stress-bearing effect with confirming addition fibers optimizes concrete. provides quantitative reference for reinforcement design engineering structures helps extend service life buildings.

Language: Английский

Concrete Resilience Under the Impact of Water Forces: A Review of Abrasion Resistance in Hydraulic Structures DOI Creative Commons

G. Murali,

Leong Sing Wong, K. Karthikeyan

et al.

Results in Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 104654 - 104654

Published: March 1, 2025

Language: Английский

Citations

0
Mechanical, Chloride Resistance, and Microstructural Properties of Basalt Fiber-Reinforced Fly Ash–Silica Fume Composite Concrete DOI Open Access

Yishan Li,

Yan Liu, Wei Zhang

et al.

Minerals, Journal Year: 2025, Volume and Issue: 15(4), P. 348 - 348

Published: March 27, 2025

Basalt fiber has advantages in enhancing the mechanical properties of concrete, but comprehensive effects content and length, as well relationship between impermeability performance, remain unclear require systematic verification. This study aims to quantify basalt length on (compressive strength, tensile flexural strength) concrete permeability performance reveal underlying mechanisms. The macroscopic results indicate following: (1) optimum compressive strength fiber-reinforced is 1.5 kg/m3; (2) 1.0 (3) most significantly improved when reaches kg/m3 18 mm. During tests, a nonlinear functional exists two indicators, electric flux chloride ion migration coefficient. Microscopic analysis showed that mineral admixtures (fly ash silica fume) promoted secondary hydration reaction cementitious material, generating significant amount C-(A)-S-H gels increase density matrix. After incorporating fibers, they tightly envelop matrix, reducing number internal voids achieving synergistic stress-bearing effect with confirming addition fibers optimizes concrete. provides quantitative reference for reinforcement design engineering structures helps extend service life buildings.

Language: Английский

Citations

0