Tile Adhesive Composition for Noise and Vibration Damping
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Solution Overview
Problem
Existing adhesive compositions do not sufficiently contribute to noise or vibration suppression in tiled structures, while also facing issues with processability, adhesion, and durability.
Innovation Solution
A tile adhesive composition comprising 10-50 wt.% hydraulic binder, 20-60 wt.% lightweight aggregates, and 10-20 wt.% polymer, which is mixed with water to form a one-component mixture that provides good adhesion to various materials and suppresses noise and vibrations, with a pot life of around 30 minutes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional adhesive compositions are used to achieve good adhesion and processability, then adhesion to materials like mortar, concrete, wood and metals is improved, but noise and vibration suppression is insufficient
Solution Approach 1:
The adhesive composition uses a composite formulation combining hydraulic binder (30-40 wt.%), lightweight aggregates (35-55 wt.%), and polymer (10-20 wt.%) to achieve both adhesion and noise/vibration suppression. The lightweight aggregates create a porous structure that dampens vibrations and absorbs noise while the hydraulic binder provides bonding strength.
Solution Approach 2:
The adhesive composition incorporates lightweight aggregates that create a porous internal structure, enabling the material to absorb acoustic energy and dampen vibrations. This porosity is key to achieving noise reduction (1-10 dB) and vibration suppression while maintaining structural integrity for adhesion.
2Object-affected harmful factors
If adhesive composition is formulated for noise suppression, then noise reduction is improved, but processability and pot life may be compromised
Solution Approach 1:
The adhesive composition carefully controls the water content (weight ratio water to dry adhesive: 0.25-0.5) and the proportions of each component to achieve optimal consistency for processing. The polymer content (10-20 wt.%) is specifically tuned to provide workability and adhesion while the noise suppression functionality remains effective.
3Strength
If adhesive composition uses high polymer content to improve adhesion, then adhesion strength is improved, but cost and potential deformation increase
Solution Approach 1:
The adhesive composition optimizes the polymer content to a specific range (10-20 wt.%) to achieve sufficient adhesion strength without excessive polymer usage. This balanced formulation, combined with hydraulic binder and lightweight aggregates, provides the necessary bonding performance while controlling material quantity and cost.
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 adhesive composition achieves significant noise reduction (1-10 dB) and vibration suppression, while maintaining ease of application and adhesion to different materials, including mortar, concrete, wood, and metals.
Implementation Method 1
a) 10-50 wt. % of a hydraulic binder
Implementation Method 2
c) 10-20 wt. % of a polymer
Implementation Method 3
b) 20-60 wt. % of lightweight aggregates... contribute to noise or vibration reduction
Implementation Method 4
b) 20-60 wt. % of lightweight aggregates... suppresses noise and vibrations
Data Source
AI summary
An adhesive composition, in particular a tile adhesive, includes: a) 10-50 wt. % of a hydraulic binder, b) 20-60 wt. % of lightweight aggregates, c) 10-25 wt. % of a polymer.