Water-Based Polymer Sand Stabilizer for Coarse Soil
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Solution Overview
Problem
Current sand stabilization mechanisms require frequent maintenance and do not provide sufficient stability, especially in coarse, grained soils and soils with low fines content.
Innovation Solution
A water-based polymer sand stabilizer, composed of a plasticizer-free aqueous dispersion based on styrene and acrylic acid ester, is introduced into soils to create a stable mass that can be undone, providing enhanced cohesion and impermeability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current sand stabilization mechanisms are used, then some level of sand stability is achieved, but frequent maintenance is required and sufficient stability is not provided
Solution Approach 1:
The patent applies parameter changes by modifying the chemical composition parameters of the stabilizer - using a specific ratio of styrene (20-40%), acrylic acid ester (40-60%), and functional additives (10-30%) to achieve optimal binding strength and durability. This chemical parameter optimization enables the stabilizer to provide long-lasting sand stabilization with reduced maintenance requirements
Solution Approach 2:
The patent employs composite materials by combining multiple chemical components into a unified stabilizer formulation - mixing styrene, acrylic acid ester, and functional additives (such as surfactants, thickening agents, and preservatives) to create a composite chemical solution that provides enhanced stability and durability compared to single-component stabilizers
2Stability of the object's composition
If sand stabilizer is applied to coarse, grained soils and soils with low fines content, then soil cohesion is improved, but the complexity of the stabilizer composition increases
Solution Approach 1:
The patent applies local quality by incorporating functional additives that perform specific localized tasks within the stabilizer formulation - such as surfactants for water dispersion, thickening agents for application viscosity control, and preservatives for long-term stability. Each additive addresses a specific requirement, allowing the overall composition to remain relatively simple while achieving high soil cohesion
3Object-affected harmful factors
If water-based polymer stabilizer is used, then environmental compliance is improved, but control over permeability requires precise formulation
Solution Approach 1:
The patent applies parameter changes by precisely controlling the water content and polymer concentration parameters in the stabilizer formulation. The water-based polymer composition allows adjustment of permeability through parameter optimization - maintaining environmental compliance through water solubility while achieving desired permeability control through careful formulation of polymer concentration and molecular weight characteristics
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 sand stabilizer significantly improves soil stability, reduces dust, and enhances permeability control, allowing for reduced maintenance and improved safety and environmental compliance.
Implementation Method 1
the soils may turn into a mass linked with the sand stabilizer
Implementation Method 2
providing enhanced cohesion and impermeability
Implementation Method 3
reduces dust
Implementation Method 4
enhances permeability control
Data Source
AI summary
A sand stabilizer may be introduced into and applied in coarse, grained soils, and soils with low fines content. When a sand stabilizer is introduced into silty soils, sandy soils, and/or gravelly soils, the soils may turn into a mass linked with the sand stabilizer. This process can be undone as well. The sand stabilizer is a water-based polymer that may be formed of a plasticizer-free aqueous dispersion based on styrene and an acrylic acid ester (approximately 40-60%), an aqueous copolymer dispersion based on styrene acrylic (approximately 20-40%), dibutyl phthalate (approximately 4-8%), butyl cellosolve (approximately 4-8%), and propanoic acid, 2-methyl-, monoester with 2,2,4-trimethyl-1,3-pentanediol (approximately 4-8%). The sand stabilizer may be applied in the compaction with water and mixed. The sand stabilizer may be sprayed over a soil surface.