Permeable Epoxy Paving Composition for Humid Strength Retention
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Solution Overview
Problem
Existing paving materials for landscape paving face challenges in achieving high water permeability, weather resistance, and strength retention in humid environments, with complex processes like fiberizing epoxy resins complicating the structure formation.
Innovation Solution
A paving material composition comprising an epoxy resin, a polyamine compound represented by formula (1) or its modified products, and an aggregate, with specific ratios and properties to enhance water permeability, weather resistance, and strength retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fiberizing epoxy resin by kneading with fibers is used to improve weather resistance, then weather resistance is improved, but the process becomes complicated
Solution Approach 1:
The patent changes the chemical parameters of the epoxy resin system by specifying particular epoxy resin types (alicyclic, aromatic, phenolic, aliphatic) and their molecular weight ranges, along with specific curing agent ratios. This parameter optimization achieves excellent weather resistance without requiring complex fiberizing processes, thus resolving the contradiction between weather resistance and process simplicity
Solution Approach 2:
The patent creates a composite binder system combining multiple epoxy resin types with specific curing agents in optimized ratios. This composite material approach provides superior weather resistance and mechanical properties while maintaining a simple mixing process, avoiding the complexity of fiberizing operations
2Strength
If high initial strength is achieved through complex fiberized resin, then initial strength is improved, but strength retention in humid environment deteriorates
Solution Approach 1:
The patent optimizes the molecular weight parameters of epoxy resins (specifically 200-1000 for alicyclic and 100-500 for aromatic) and the ratio of epoxy resin to curing agent (0.8-1.2). These parameter changes create a binder system that achieves high initial strength while maintaining excellent strength retention in humid environments, eliminating the trade-off between initial strength and humidity resistance
3Quantity of substance
If water permeability is increased for landscape paving, then water permeability is improved, but structural strength may deteriorate
Solution Approach 1:
The patent specifies particular molecular weight ranges for different epoxy resin types and optimizes the epoxy resin to aggregate ratio (0.05-0.5). These parameter changes enable the formation of a binder system that provides both high water permeability and structural strength, resolving the contradiction between permeability and strength requirements for landscape paving
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 composition forms a structure with high water permeability, weather resistance, and excellent strength retention even in humid conditions, ensuring durability and performance in outdoor environments.
Implementation Method 1
an epoxy resin curing agent containing 50% by mass or more of a polyamine compound represented by the following formula (1) or a modified product thereof
Data Source
AI summary
A paving material composition containing:an epoxy resin:an epoxy resin curing agent containing 50% by mass or more of a polyamine compound represented by the following formula (1) or a modified product thereof. (A); and an aggregate.wherein X is a cyclohexylene group.