TY - JOUR

T1 - One-Part Alkali-Activated Binder Produced from Tungsten-Molybdenum (W-Mo) Tailings

AU - Lazorenko, Georgy

AU - Wang, Yanshuai

AU - Fedotov, Alexandr

AU - Kasprzhitskii, Anton

N1 - Текст о финансировании #1 Yanshuai Wang would like to show appreciation for the financial support from the National Natural Science Foundation of Guangdong Province (No. 2023A0505010020). Текст о финансировании #2 The authors acknowledge the support by the Ministry of Science and Higher Education of the Russian Federation (grant No. FSUS-2024-0027).

PY - 2024/12

Y1 - 2024/12

N2 - This study explores the feasibility of preparing a one-part alkali-activated binder produced from tungsten-molybdenum (W-Mo) tailings with sodium metasilicate (SM). A series of alkali-activated mortar samples were prepared, and the effects of the water/binder (W/B) ratio and mixture proportion on mechanical properties were investigated. Additionally, the microstructure and composition of the alkali-activated W-Mo tailings were characterized by using a combination of scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared (FTIR) spectroscopy techniques. Optimal results were achieved with a W/B ratio of 0.35 and a formulation containing 20% by weight of SM. Under these conditions, the cured samples exhibited an unconfined compressive strength of 11.2 MPa and a bulk density of 1726 kg/m3 after 28 days. The findings show the potential to advance tungsten-molybdenum mine waste upcycling and contribute to the production of environmentally sustainable building materials.

AB - This study explores the feasibility of preparing a one-part alkali-activated binder produced from tungsten-molybdenum (W-Mo) tailings with sodium metasilicate (SM). A series of alkali-activated mortar samples were prepared, and the effects of the water/binder (W/B) ratio and mixture proportion on mechanical properties were investigated. Additionally, the microstructure and composition of the alkali-activated W-Mo tailings were characterized by using a combination of scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared (FTIR) spectroscopy techniques. Optimal results were achieved with a W/B ratio of 0.35 and a formulation containing 20% by weight of SM. Under these conditions, the cured samples exhibited an unconfined compressive strength of 11.2 MPa and a bulk density of 1726 kg/m3 after 28 days. The findings show the potential to advance tungsten-molybdenum mine waste upcycling and contribute to the production of environmentally sustainable building materials.

KW - alkali-activated materials

KW - mine waste

KW - one-part geopolymer

KW - ore tailings

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85213489134&origin=inward&txGid=fc44dc4b1333aaab34f917fd43c625f7

UR - https://www.mendeley.com/catalogue/5c485f68-1611-377e-bff4-b7f23d8dbf79/

U2 - 10.3390/eng5040165

DO - 10.3390/eng5040165

M3 - Article

VL - 5

SP - 3148

EP - 3160

JO - Eng

JF - Eng

SN - 2673-4117

IS - 4

ER -