Construction Board With Perforated Cover Layer For Controlled Adhesion
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Solution Overview
Problem
Existing construction boards with large adhesive quantities are difficult to remove and reuse in circular construction due to strong adhesion to the ground surface, making it impractical to dismantle and reposition them after their lifespan.
Innovation Solution
A construction board with a cover layer featuring holes allows for controlled adhesion by distributing adhesive force through these holes, enabling easy release by breaking adhesive connections one at a time, using self-adhesive tape strips with holes for defined adhesion areas and optimized adhesive application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a large quantity of adhesive is used to secure the construction board firmly to the ground surface, then the adhesion strength is improved, but the ease of removal and reuse deteriorates
Solution Approach 1:
The cover layer is segmented into multiple discrete holes distributed across its surface. Adhesive is applied only at these hole locations, creating multiple small adhesion points instead of one large continuous adhesion area. This segmentation allows the total adhesion strength to be sufficient while enabling easy removal by breaking individual adhesive connections one at a time, starting from an edge or corner.
2Ease of operation
If a cover layer with holes is introduced to enable controlled adhesion and easy removal, then the ease of removal is improved, but the device complexity increases
Solution Approach 1:
The cover layer is implemented as a thin film or sheet material with holes formed therein. This thin-film approach adds minimal structural complexity while effectively controlling adhesive application areas. The cover layer can be a simple perforated sheet or membrane that allows adhesive to pass through to the cement mortar layer only at designated hole locations.
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 solution provides a construction board that can be securely attached and easily removed from surfaces by applying adhesive only through the holes, allowing for efficient reuse and repositioning without damaging the underlying cement mortar layer.
Implementation Method 1
The adhesive will however adhere only via the holes to the cement layer lying thereunder, whereby a controlled adhesion area is obtained
Implementation Method 2
the at least one strip is arranged with the self-adhesive side on the cover layer
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a construction board, comprising: - a plate-like core of hard foam, such as extruded or expanded polystyrene foam, which plate-like core has two parallel main surfaces and a peripheral surface extending between the main surfaces; - a layer of cement mortar arranged on at least one main surface of the core; and - a cover layer arranged on the layer of cement mortar, which cover layer is provided with a number of holes arranged at mutual distances.