Effect of Fly Ash on the Mechanical Properties of Cemented Backfill Made with Brine

• Published in: Geotechnical and geological engineering Vol. 37; no. 2; pp. 691 - 705
• Main Authors: Yan, Bing-qian, Kouame, Kouame-Joseph-Arthur, Tannant, Dwayne, Lv, Wen-sheng, Cai, Mei-feng
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.04.2019; Springer Nature B.V
• Subjects: Admixtures; Backfill; Brines; Cement; Cementing; Civil Engineering; Compressive strength; Concrete; Corrosion; Corrosion mechanisms; Earth and Environmental Science; Earth Sciences; Electron microscopes; Electron microscopy; Fly ash; Geotechnical Engineering & Applied Earth Sciences; Gold; Hydrogeology; Internal friction; Mechanical properties; Modulus of elasticity; Original Paper; Rheological properties; Saline water; Scanning electron microscopy; Slurries; Terrestrial Pollution; Theoretical analysis; Waste Management/Waste Technology; Water use; X-ray diffraction; X-ray diffraction analysis; Cement backfill; Fly ash; Micro-corrosion mechanism; Salt brine; Uniaxial compressive strength

Sanshandao Xinli Gold Mine in Shandong Province is the first Chinese subsea gold mine. The mine uses cement backfill in the open stopes. The existence of a high concentration of Cl − in the water use to create the cement backfill affects its strength. An analysis by scanning electron microscopy and...