Carbonization reinforcement of soft soil by activated brucite powder: innovative technology and research progress

As an effective soil improvement material, active brucite powder has shown great potential in strengthening weak soil through carbonization reaction. This article will outline the research content and key technical points in this field.

Characteristics of active brucite powder

Chemical properties: The chemical formula is Mg(OH)₂, and it has good activity as a magnesium source.

Ultrafine treatment: Improve its dispersibility and reaction efficiency in the soil.

Hydrophilicity and specific surface area: Favorable for uniform dispersion and enhanced reaction in the soil.

Carbonization reaction principle

Reaction generation: Active brucite powder reacts with CO₂ to generate magnesium carbonate, forming a bridge effect between soil particles.

Mechanical property enhancement: Reduce porosity and water content, and improve soil strength and stability.

Test method

Indoor test: Test the physical properties, chemical composition and mechanical properties of the soil before and after carbonization.

Field test: Evaluate the long-term stability and economic benefits of carbonization reinforcement technology in actual engineering.

Enzyme-assisted carbonization

Enzyme application: Such as urease, accelerate the reaction of brucite and CO₂, and improve the reinforcement effect.

Practical application cases

Infrastructure construction: brucite fiber concrete is used for the reinforcement of soft soil roadbeds on rural roads.

Technical advantages

Environmental protection: The absorption of CO₂ during carbonization helps reduce greenhouse gas emissions.

Economical efficiency: High cost-effectiveness, lower than traditional reinforcement methods.

Sustainability: Provides a sustainable solution for the reinforcement of soft soils.

Research prospects

Optimization of carbonization conditions: Improve carbonization efficiency.

Enhancement of brucite activity: Exploration of different sources and pretreatment methods.

Modifier development: Improve the interaction between brucite and soil particles.

Environmental impact study: Ensure the long-term safety and stability of carbonization products.

The study of carbonization reinforcement of soft soil with active brucite powder has brought innovative technologies to the fields of soil engineering and environmental protection. With the continuous optimization of technology and the deepening of application practice, this method is expected to achieve wider application in the future and make greater contributions to sustainable development.

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