Work

Optimization of Cement-Slag-Based Stabilizer Proportions and Macro-Micro Properties Research of Solidified Soil

Year: 2025

Type: article

Abstract: In response to the high energy consumption and large carbon emissions of traditional cement materials, this paper takes slag micro-powder as the main raw material, supplemented by cement and gypsum, and uses the D-optimal mixture design method to optimize the mix ratio. It systematically studies the solidification performance of slag-based cementitious materials on Guangzhou silt. Through unconfined compressive strength and fluidity tests, the optimal main material ratio is determined to be m(slag):m(cement):m(gypsum) = 57:30:13, and 4% sodium silicate is selected as the activator. Microstructure analysis shows that this system can effectively promote the formation of C-S-H gel and ettringite, significantly improving the compactness and cementation performance of the soil. The study also shows that this material outperforms traditional cement in terms of strength, environmental friendliness, and economy, and has good engineering application prospects.

Source: Processes

DOI: 10.3390/pr13123855

Authors: Qingzhao Zhang, Sun Chen, Ying Chen, Songbo Yu, Bo Feng, Wenkai Gao

Institutions: Tongji University, Shanghai Lixin University of Accounting and Finance

Language: English

Topic: Geotechnical Engineering and Soil Stabilization

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Responsible consumption and production, Industry, innovation and infrastructure

Open Access status: gold

Estimated APC paid: $2,896