All-Solid-Waste Soil-Binding Material for Mucky Soil Solidification
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Solution Overview
Problem
Existing cement-based solidifying materials fail to effectively solidify mucky soils with high organic matter and moisture content, leading to poor solidification effects and increased project costs.
Innovation Solution
A high-performance all-solid-waste soil-binding material composed of slag powder, fly ash, steel-slag powder, alkaline residue powder, and lithium-battery solid waste, with specific activity indices and mineral compositions, is used to enhance solidification strength and environmental friendliness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cement is used as a solidifying material for mucky soil with high organic matter content and high moisture content, then the solidification process can be implemented, but the solidifying effect is poor due to organic acids destroying cement hydration products and high moisture content weakening the solidifying effect
Solution Approach 1:
The patent utilizes the high moisture content and organic matter in mucky soil, which traditionally harm cement solidification, by replacing cement with industrial solid waste materials (slag powder, fly ash, steel-slag powder) that are not susceptible to organic acid degradation. The moisture content becomes beneficial for the hydration and activation reactions of the solid waste materials, converting the harmful high moisture condition into a favorable environment for the alternative solidifying mechanism.
Solution Approach 2:
The patent changes the chemical composition parameters of the solidifying material by substituting cement with a specific ratio of industrial solid wastes (slag powder: 30-60 parts, fly ash: 10-25 parts, steel-slag powder: 10-30 parts, alkaline residue powder: 5-15 parts, lithium-battery solid waste: 5-15 parts). This parameter change makes the material resistant to organic acid attack while maintaining solidification capability through alternative chemical mechanisms.
2Reliability
If the cement addition amount is increased to improve the piling effect of mixing pile, then the piling effect is improved, but the project cost is significantly increased
Solution Approach 1:
The patent replaces expensive cement with inexpensive industrial solid waste materials that can be utilized at no additional cost or with minimal processing. The solid waste materials (slag powder, fly ash, steel-slag powder, alkaline residue powder, lithium-battery solid waste) are by-products from other industries, making them economically advantageous substitutes for cement while achieving comparable or superior solidification effects.
Solution Approach 2:
The patent recovers and utilizes industrial solid wastes that would otherwise be discarded as waste products. By transforming these waste materials into effective solidifying agents for weak soil treatment, the patent achieves both environmental benefits (waste reduction) and economic benefits (cost savings), while eliminating the need for large cement additions.
3Ease of manufacture
If cement is used for solidifying weak soil, then the solidification process is simple, but the solidifying effect is poor and project cost increases
Solution Approach 1:
The patent creates a composite solidifying material by combining multiple industrial solid waste components (slag powder, fly ash, steel-slag powder, alkaline residue powder, lithium-battery solid waste) in specific proportions. This composite approach leverages the complementary properties of each waste material to achieve effective solidification of weak soil, overcoming the limitations of single-material approaches while maintaining process simplicity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The material effectively solidifies weak soils, reduces carbon emissions, and lowers costs by utilizing recycled waste materials, while improving strength and stability through chemical reactions and volume expansion mechanisms.
Implementation Method 1
improving strength and stability through chemical reactions and volume expansion mechanisms
Implementation Method 2
the high moisture content and a high porosity ratio will further weaken a solidifying effect
Data Source
AI summary
The present disclosure provides an eco-friendly high-performance all-solid-waste soil-binding material and a preparation method and use method thereof, and relates to the field of weak soil solidifying agents. The eco-friendly high-performance all-solid-waste soil-binding material includes the following components in parts by weight: a slag powder: 30 parts to 60 parts, a fly ash: 10 parts to 25 parts, a steel-slag powder: 10 parts to 30 parts, an alkaline residue powder: 5 parts to 15 parts, and a lithium-battery solid waste: 5 parts to 15 parts. The implementation of the present disclosure can improve a solidification strength of the soil-binding material, reduce a cost of the soil-binding material, and makes the soil-binding material eco-friendly.