Coal-Based Solid Waste Backfill

Improved flow and strength

Using fly ash as a cementitious material with an air-entraining agent, optimized bubble distribution enhances slurry fluidity and early strength.

Zhou, Jing · Liu, Lang · Zhao, Yuan · Zhu, Mengbo · Zhuang, Dengdeng · Yuanyuan, Zhao · Sun, Weiji · Yongzhe, Lyu

Journal of Materials Research and Technology 2024

Specifications

at dosage during

{'zh': '4', 'en': '-28'} days curing

Advantages

Fluidity of filling slurry improves with air-entraining agent dosage from 0 to 8%

Strength increases within the first 5 days of curing

Strength at 4% dosage is 11.35% higher than without air-entraining agent