Polymer-Modified Ground Stabilisation for Frost Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for constructing roads and foundations are costly due to soil replacement and material disposal, and often result in surfaces that are prone to cracking and insufficient compressive strength, especially when exposed to frost.
Innovation Solution
A method involving a polymer-based elastic network former, used in conjunction with a binder and water, is applied to the subsoil to create a hardened substrate with enhanced frost resistance and compressive strength, where the amounts of network former, binder, and water are optimized based on the subsoil's nature, reducing the need for external material and minimizing logistical efforts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If soil replacement and gravel base layer are used, then compressive strength and frost resistance are improved, but construction costs and logistical efforts increase
Solution Approach 1:
The patent changes the chemical and physical parameters of the existing subsoil by adding a polymer-based elastic network former (latex polymer) that modifies the soil's properties in situ. This transforms the weak subsoil into a strengthened substrate without removing or replacing it, thereby improving compressive strength while minimizing material usage and construction costs.
Solution Approach 2:
The invention extracts only the essential strengthening function from the traditional gravel base layer concept. Instead of removing the entire subsoil and replacing it with thick gravel layers (50-70 cm), the patent applies a concentrated polymer-based strengthener that provides the necessary mechanical strength with minimal material quantity.
2Object-affected harmful factors
If soil replacement is carried out, then frost resistance is improved, but construction costs and earthworks increase
Solution Approach 1:
The existing subsoil serves itself by being strengthened in place through the polymer additive. The soil remains in its original location and performs its load-bearing function after treatment, eliminating the need for excavation, removal, and replacement operations. This self-service approach maintains frost resistance while dramatically reducing construction costs and earthworks.
Solution Approach 2:
The polymer-based elastic network former acts as an intermediary substance that mediates between the existing subsoil and the required frost resistance performance. The latex polymer forms a protective network within the soil matrix, enabling the subsoil to withstand frost conditions without physical removal or replacement.
3Force
If gravel base layer is applied, then load-bearing capacity is improved, but the number of transports and soil disposal increase
Solution Approach 1:
The patent segments the load-bearing function from the bulk material requirement. Instead of using large quantities of gravel material to achieve load-bearing capacity, the invention segments the strengthening function into a concentrated polymer additive that can be applied in small amounts while still providing the necessary mechanical support.
Solution Approach 2:
The invention creates a composite material system by combining the polymer-based elastic network former with the existing subsoil particles. This composite strengthens the subsoil matrix, enabling it to bear loads effectively without requiring thick layers of separate gravel material, thereby reducing transportation and disposal operations.
4Quantity of substance
If conventional subsoil treatment is used, then material quantity is reduced, but cracking and insufficient compressive strength occur
Solution Approach 1:
The polymer-based elastic network former forms a flexible, film-like network within the subsoil matrix. This elastic network acts as a flexible reinforcement that can accommodate stress and strain without breaking, thereby preventing crack formation while using minimal material quantity. The latex polymer creates a continuous flexible phase that binds soil particles together.
Solution Approach 2:
The invention creates a composite material system combining the polymer network with soil particles, where the polymer phase provides crack resistance and flexibility while the soil provides structural framework. This composite structure achieves both material efficiency and reliability by distributing stresses through the polymer-soil interface.
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 method significantly increases the subsoil's compressive strength, modulus of elasticity, and frost resistance, while reducing the likelihood of cracking, thus improving the quality and durability of road and foundation layers with minimal effort and material usage.
Implementation Method 1
The crosslinking of the polymer of the network former can result in the substrate hardener hardening and the substrate interacting with it hardening
Implementation Method 2
a binder and water to form a hardened substrate
Data Source
Figure 1~4
Figure 5~8
AI summary
Method for consolidating a substrate (100), wherein in the method a polymer-based elastic network former (102) of a substrate consolidator (104) is processed with a binder (106) and water (108) to form a consolidated substrate (100), and an amount of network former (102), an amount of binder (106) and an amount of water (108) used is adjusted depending on the properties of the substrate (100).