Preparation of Low Carbon Silicomanganese Slag-Based Alkali-Activated Materials Using Alkali-Activated Silica Waste DOI Creative Commons
Zheng Yang, Zhiyuan Zhang, Yisong Liu

et al.

Buildings, Journal Year: 2024, Volume and Issue: 14(12), P. 3835 - 3835

Published: Nov. 29, 2024

The utilization of silicomanganese slag (SiMnS) as a precursor for alkali-activated materials (AAMs) is considered an efficient approach sustainable and eco-friendly large-scale resource utilization. However, sodium silicate solutions account more than 50% the production costs carbon emissions AAMs. In this study, AAM activators were prepared by silica-containing waste (acid leaching residue boron mud, BM-AR) NaOH raw materials, successfully substituted commercial silicate-NaOH activators. Results indicated that dosage had great effect on concentration modulus activator. With appropriate (NaOH: BM-AR = 0.4–0.7), suitable moduli can be produced at wide range solid/liquid ratios (L/S 3–4.5) under mild conditions (80–100 °C). compressive strength SiMnS specimens activator reach 68.58 MPa, its hydration products mainly hydrated calcium amorphous silica–alumina gel, indicating successful preparation AAM. Calculation showed emission AAMs in study was 12.4% 37.6% OPC water glass/NaOH-activated AAMs, cost only 67.14% 60.78% them. process achieves use to replace activators, expected extended variety waste. This makes it highly promising alternative method particularly ‘just add water’

Language: Английский

STUDY OF OLIVE POMACE BOTTOM ASHES AS A SUSTAINABLE ALKALINE ACTIVATOR IN THE SYNTESIS OF GEOPOLYMERS DOI Creative Commons
Elena Picazo Camilo, Raúl Carrillo Beltrán, Juan José Valenzuela Expósito

et al.

Journal of Building Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112383 - 112383

Published: March 1, 2025

Language: Английский

Citations

0
Co-utilization of silicomanganese slag and high-reactivity silicon waste for preparation of one-part alkali-activated materials: Properties and mechanism study DOI
Zheng Yang, Zhiyuan Zhang, Yisong Liu

et al.

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 380, P. 125022 - 125022

Published: March 22, 2025

Language: Английский

Citations

0
Preparation of Low Carbon Silicomanganese Slag-Based Alkali-Activated Materials Using Alkali-Activated Silica Waste DOI Creative Commons
Zheng Yang, Zhiyuan Zhang, Yisong Liu

et al.

Buildings, Journal Year: 2024, Volume and Issue: 14(12), P. 3835 - 3835

Published: Nov. 29, 2024

The utilization of silicomanganese slag (SiMnS) as a precursor for alkali-activated materials (AAMs) is considered an efficient approach sustainable and eco-friendly large-scale resource utilization. However, sodium silicate solutions account more than 50% the production costs carbon emissions AAMs. In this study, AAM activators were prepared by silica-containing waste (acid leaching residue boron mud, BM-AR) NaOH raw materials, successfully substituted commercial silicate-NaOH activators. Results indicated that dosage had great effect on concentration modulus activator. With appropriate (NaOH: BM-AR = 0.4–0.7), suitable moduli can be produced at wide range solid/liquid ratios (L/S 3–4.5) under mild conditions (80–100 °C). compressive strength SiMnS specimens activator reach 68.58 MPa, its hydration products mainly hydrated calcium amorphous silica–alumina gel, indicating successful preparation AAM. Calculation showed emission AAMs in study was 12.4% 37.6% OPC water glass/NaOH-activated AAMs, cost only 67.14% 60.78% them. process achieves use to replace activators, expected extended variety waste. This makes it highly promising alternative method particularly ‘just add water’

Language: Английский

Citations

1