Gypsum Concrete Underlayment with Silane Additive
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Solution Overview
Problem
The installation of concrete underlayment layers in flooring structures is time-consuming and costly due to the need for applying primer and sealer coats, which prolongs the installation process and increases labor costs.
Innovation Solution
Eliminating the need for primer and sealer coats by using a gypsum concrete underlayment layer with a silane-based water-resistant additive, allowing direct contact between the underlayment and the finished floor layer, thereby reducing installation time and costs while maintaining sound mitigation, moisture barrier, and fire protection functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a concrete underlayment layer is used to provide sound mitigation, moisture barrier, and fire protection functions, then the flooring structure gains enhanced performance in these areas, but the installation process becomes more time-consuming and labor-intensive due to the requirement of applying primer and sealer coats
Solution Approach 1:
The patent extracts and eliminates the primer and sealer coat layers from the flooring structure, retaining only the essential concrete underlayment layer. This removal of unnecessary intermediate layers directly reduces installation time and labor while preserving the moisture barrier function through the concrete underlayment's inherent properties when properly mixed with water-resistant additives.
Solution Approach 2:
The concrete underlayment layer is formulated with water-resistant additives that enable it to self-provide moisture barrier functionality without requiring external primer or sealer applications. The mixture of Portland cement, gypsum, and water-resistant additives creates a self-sufficient underlayment that performs moisture protection inherently.
2Reliability
If primer and sealer coats are applied to the concrete underlayment layer to ensure proper adhesion and moisture protection, then the flooring structure achieves better performance, but labor costs and installation complexity increase
Solution Approach 1:
The patent removes the primer and sealer coat steps from the installation process, simplifying the overall procedure. The concrete underlayment is designed to work directly with the finished floor layer and adhesive, eliminating intermediate treatment steps while maintaining adhesion quality through proper mixture formulation.
Solution Approach 2:
The patent modifies the chemical composition parameters of the concrete underlayment by incorporating water-resistant additives and specific ratios of Portland cement to gypsum. This parameter change enables the underlayment to achieve both adhesion readiness and moisture resistance without requiring additional primer or sealer applications.
3Reliability
If multiple primer and sealer coats are applied to ensure adequate coverage and protection, then the moisture barrier and adhesion performance improve, but the installation time increases significantly due to setting time requirements
Solution Approach 1:
The patent eliminates the need for multiple primer and sealer coat applications by designing a concrete underlayment mixture that inherently provides moisture barrier functionality. This single-layer solution with integrated water-resistant additives removes the time-consuming multi-step application and setting process.
Solution Approach 2:
The patent creates a composite concrete underlayment material combining Portland cement, gypsum, and water-resistant additives in specific proportions. This composite formulation provides both structural integrity and moisture barrier properties in a single layer, eliminating the need for separate primer and sealer treatments and their associated setting times.
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
This approach reduces installation time and labor costs while maintaining the functional benefits of the concrete underlayment layer, including sound mitigation and fire protection, by eliminating the need for primer and sealer coats, and providing a direct adhesive interface for the finished floor layer.
Implementation Method 1
the underlayment layer includes gypsum concrete having a water-resistant additive... the water-resistant additive is a silane-based powder... alkyloxysilane intermixed in the gypsum concrete
Data Source
AI summary
A method of installing a flooring structure is disclosed. The method includes providing an acoustic insulating layer over a sub-floor layer. The method also includes providing an underlayment layer over the acoustic insulating layer. The provided underlayment layer includes gypsum concrete having a water-resistant additive. Also disclosed is a flooring structure. The flooring structure includes an acoustic insulating layer over a sub-floor layer. The flooring structure also includes an underlayment layer having a first side and a second side opposite the first side. The underlayment layer includes gypsum concrete having a water-resistant additive. Additionally disclosed is a gypsum concrete flooring underlayment product. The product includes a mixture of alpha calcium sulfate hemihydrate and beta calcium sulfate hemihydrate. The product also includes a silane-based powder intermixed with the mixture of alpha calcium sulfate hemihydrate and beta calcium sulfate hemihydrate.