Curable Waterproofing Composition for Multi-Material Penetration Sealing
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Solution Overview
Problem
Existing liquid waterproofing compositions fail to provide strong adhesion to various materials and surfaces at penetration points, such as concrete, metal, and synthetic polymers, leading to gaps and leaks in pre-applied waterproofing systems.
Innovation Solution
A curable composition comprising silane-modified polymers, latex emulsions, tackifiers, and polymeric additives, which form a solid waterproofing layer that bonds effectively with these surfaces, filling cavities and ensuring a continuous waterproofing system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If liquid waterproofing compositions are applied to penetration points, then application speed and convenience are improved, but adhesion strength to various materials (concrete, metal, synthetic polymers) is insufficient
Solution Approach 1:
The patent uses a composite material system consisting of silane-modified polymer, latex emulsion, tackifier, and polymeric additive. This composite formulation provides both the liquid application characteristics and the strong adhesion to multiple materials. The silane-modified polymer creates chemical bonds with concrete and metal surfaces, while the latex emulsion and tackifier provide adhesion to synthetic polymer membranes, solving the multi-material bonding problem.
Solution Approach 2:
The patent modifies the chemical parameters of the waterproofing composition by incorporating silane-modified polymer with specific molecular weight and functionality. This parameter change enables the composition to cure and form strong adhesion bonds with diverse materials while maintaining liquid application properties. The silane groups react with hydroxyl groups on concrete and metal surfaces to create permanent bonds.
2Reliability
If pre-applied waterproofing membranes are used, then waterproofing continuity is improved, but sealing effectiveness at penetrations and surface irregularities deteriorates
Solution Approach 1:
The curable composition acts as an intermediary material applied at penetration points and surface irregularities. It fills cavities and creates a bonded seal between the waterproofing membrane and the penetration object (pipe, rebar, anchor). The composition cures to form a continuous waterproofing barrier that integrates the membrane with the penetration sealing, eliminating leaks at these critical locations.
3Ease of manufacture
If conventional liquid waterproofing compositions are used, then application simplicity is improved, but bonding capability to diverse materials deteriorates
Solution Approach 1:
The patent formulates a universal waterproofing composition that can bond with multiple material types: concrete (via silane reaction), metal (via silane reaction), and synthetic polymers (via latex emulsion and tackifier). This multi-functional composition eliminates the need for different sealants for different materials, maintaining application simplicity while achieving versatile bonding capability.
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 achieves strong adhesion to diverse materials, preventing leaks and ensuring a continuous waterproofing barrier, even at surface irregularities and penetrations.
Implementation Method 1
at least one silane-modified polymer
Implementation Method 2
at least one silane-modified polymer
Implementation Method 3
at least one latex emulsion with total organic solid in an amount of 5-90 wt % based on the total weight of the curable composition
Implementation Method 4
at least one tackifier in an amount of at least 1 wt %, based on the total weight of the curable composition
Data Source
AI summary
A waterproofing curable composition, method of use, and building product containing such composition is provided. The curable composition, upon cure, exhibits strong adhesion to the construction substrates on which it is applied as well as to concrete cast upon the cured membrane, producing a continuous and fully bonded waterproof system, even though different surfaces and surface textures are presented at the surface-to-surface joinder among various components within a pre-applied waterproofing construction site.