Solvent-Based Bond Breaker Composition for Low-Residue Concrete Finishing
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Solution Overview
Problem
Conventional bond breakers for tilt-up construction leave residues and alter the surface of concrete panels, making it difficult to finish them as desired.
Innovation Solution
A solvent-based and water-based bond breaker compositions comprising organic solvents, monosaturated fatty acids, fatty acid esters, and film formers, which provide improved release performance and reduced residue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional wax or petroleum based release agents are used, then the bond breaker function is achieved, but the surface of concrete panels is altered and residue is left
Solution Approach 1:
The patent changes the chemical composition parameters of the release agent by using water-based formulations with specific ratios of fatty acids (0.1-5 wt%), film formers (1-15 wt%), and controlled solvent content (5-20 wt%), replacing conventional petroleum-based compositions to eliminate harmful residues while maintaining bond breaker functionality
Solution Approach 2:
The invention creates a composite release agent system combining multiple components: water as base, fatty acids (monosaturated and polyunsaturated), film formers (acrylic, polyvinyl, polyurethane), and optional additives, where each component contributes specific properties to achieve both bond breaking and clean surface finish
2Ease of operation
If conventional release agents are applied, then panels release from forms, but painting and finishing becomes difficult
Solution Approach 1:
The patent extracts and removes the harmful residue component from conventional release agents by formulating a water-based system that evaporates completely or washes away cleanly, separating the essential bond breaker function from the harmful surface alteration effect, thereby enabling subsequent painting and finishing operations
Solution Approach 2:
The water-based release agent acts as a temporary, disposable coating that performs its bond breaker function during construction and then evaporates or washes away completely, leaving no permanent residue that would interfere with later painting or finishing operations
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 compositions enable smooth release of concrete panels with reduced peel strength and minimal residue, enhancing the finishability of concrete surfaces.
Implementation Method 1
a solvent-based bond breaker composition comprising at least 50 wt. % of an organic solvent, such as one or more of an aromatic hydrocarbon, isopropyl alcohol, or combinations thereof
Implementation Method 2
a liquid release agent comprising: 0.05 wt. % to 10 wt. % of a monosaturated fatty acid and 0 to 10 wt. % of a fatty acid ester
Implementation Method 3
1 to 15 wt. % of at least one film former
Data Source
AI summary
A solvent-based bond breaker composition is disclosed comprising at least 50 wt. % of an organic solvent, a liquid release agent, and 1 to 15 wt. % of at least one film former. The liquid release agent includes 0.05 wt. % to 10 wt. % of a monosaturated fatty acid and 0 to 10 wt. % of a fatty acid ester, based on the total weight of the solvent-based bond breaker. The solvent-based bond breaker composition has a solids content of between 3% and 15%.