Related Experiment Video
Updated: Jan 7, 2026
06:27
Sandy Soil Improvement through Microbially Induced Calcite Precipitation MICP by Immersion
Published on: September 12, 2019
10.0K
Development of multi-source solid waste fluidized solidified mucky soil curing agent via mixture design-response
Weijun Zheng1, Jin Yu2, Yanyan Cai2
1College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China.
Environmental Research
|January 2, 2026
Summary
A novel low-carbon curing agent (SL-MCM) using industrial waste significantly enhances coastal soil solidification, offering an eco-friendly alternative to traditional cement. This sustainable solution reduces costs and carbon emissions.
Area of Science:
- Materials Science
- Geotechnical Engineering
- Environmental Science
Background:
- Traditional cement-based soil solidification has a high carbon footprint and poor compatibility.
- Challenges include fluidity-strength trade-offs and environmental concerns.
Purpose of the Study:
- To develop a novel, low-carbon curing agent (SL-MCM) by activating industrial solid wastes.
- To optimize the performance of a ternary cementitious system (MCM) for coastal mucky soil solidification.
Main Methods:
- Simplex-centroid mixture design (SCMD) optimized the MCM ratio (GGBS, DG, WM).
- Response surface methodology (RSM-CCF) analyzed water-to-materials ratio (Rw), sodium lignosulfonate (SL) content (Rs), and alkali-to-curing agent ratio (Ra).
- Microstructural analyses elucidated strength enhancement mechanisms.
Main Results:
- The optimal MCM formulation (GGBS:DG:WM = 0.596:0.188:0.216) enhanced strength ~8-fold compared to individual components.
- Optimized parameters: Rw=0.746, Rs=0.688%, Ra=8.321%.
- SL-MCM achieved target compressive strength with lower cost and reduced carbon emissions versus OPC.
Conclusions:
- SL-MCM offers a robust, tunable fluidized filling material for diverse applications.
- The study provides a feasible solution for green, low-carbon soil curing agents and solid waste valorization.
- Strength development involves synergistic binding, framework reinforcement, and particle filling mechanisms.
Related Concept Videos
01:14Design Example: Managing Concrete Workability
275
This example deals with managing the workability of concrete for a raft foundation project under hot weather conditions. Workability is crucial for ensuring the concrete is easy to place, compact, and finish. In this scenario, a slump test — a common method to measure the workability of fresh concrete — initially indicated low workability. This was attributed to the rapid water loss from the concrete mix, exacerbated by the high temperatures causing the course aggregates to heat up.
275
01:20Curing of Concrete
333
The hydration of cement takes place within the water-filled capillary pores. However, environmental elements can disrupt this process by evaporating water from the concrete surfaces. Sealed concrete with a water-cement ratio below 0.5 experiences self-desiccation, leading to water loss. The water loss in concrete is mitigated by curing. This technique involves keeping the concrete saturated to maintain the necessary temperature and moisture conditions, to optimally fill the spaces in the cement...
333
01:16Response Surface Methodology
573
Response Surface Methodology (RSM) is a collection of statistical and mathematical techniques used to develop, improve, and optimize processes. It is particularly valuable when many input variables or factors potentially influence a response variable.
The process of RSM involves several key steps:
The process of RSM involves several key steps:
573
01:22Waterproofing and Anti-Bacterial Admixtures in Concrete
211
Concrete's susceptibility to water absorption is due to the capillary action within the pores of its hydrated cement paste. This action draws water in, creating the need for waterproofing admixtures to prevent such penetration. The efficacy of these admixtures is contingent upon the water pressure, with variations arising from different conditions such as rain, capillary rise, or hydrostatic pressure in structures intended to hold water.
Waterproofing admixtures render concrete hydrophobic,...
Waterproofing admixtures render concrete hydrophobic,...
211