Multi-layer decoupling and sealing system for ceramic paving
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Solution Overview
Problem
Ceramic paving laid using the thin-bed method in exterior areas faces issues with moisture penetration and temperature-induced cracking due to differing coefficients of expansion, leading to mechanical decoupling that compromises load-bearing capacity and anchoring.
Innovation Solution
A multilayer decoupling and sealing system comprising a liquid-impermeable sealing layer, a lattice-type anchoring layer made of plastic rods that cures in place, and a reinforcing layer, which ensures strong bonding with joint mortar for improved mechanical load-bearing capacity and anchoring, while allowing for moisture drainage and thermal decoupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ceramic paving is decoupled from the substratum to prevent cracking and moisture damage, then reliability is improved, but mechanical load-bearing capacity deteriorates
Solution Approach 1:
The system is divided into multiple functional layers: a sealing layer for moisture protection, a drainage layer for water removal, and a reinforcing layer for mechanical strength. Each layer performs a specific function, collectively resolving the contradiction between decoupling for reliability and maintaining load-bearing capacity.
Solution Approach 2:
The invention uses a composite structure combining different materials with complementary properties: impermeable sealing materials, porous drainage materials, and reinforcing materials with high tensile strength. This composite approach allows simultaneous achievement of moisture protection, drainage, and mechanical strength.
2Object-affected harmful factors
If a lattice-type drainage layer is used to drain moisture from the substratum, then moisture drainage is improved, but mechanical load-bearing capacity deteriorates
Solution Approach 1:
The system separates the drainage function into a dedicated drainage layer with lattice structure, while the reinforcing layer provides mechanical strength. This functional segmentation allows the drainage layer to optimize moisture removal without compromising overall structural capacity.
Solution Approach 2:
The combination of the open-lattice drainage layer and the reinforcing layer creates a composite system where the drainage layer handles moisture removal and the reinforcing layer compensates for the reduced mechanical capacity, achieving both drainage efficiency and structural strength.
3Ease of manufacture
If the anchoring layer is made from simple lattice structure for ease of construction, then ease of manufacture is improved, but anchoring strength deteriorates
Solution Approach 1:
The anchoring function is separated from the drainage function into distinct layers. The lattice structure provides geometric simplicity for easy construction, while the reinforcing layer with high-strength materials provides the necessary anchoring strength through its material properties rather than structural complexity.
Solution Approach 2:
The system combines the geometrically simple lattice structure with high-strength reinforcing materials to achieve both ease of construction and strong anchoring. The reinforcing materials compensate for the simple geometry, providing adequate anchoring strength without complex manufacturing.
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 system enhances mechanical load-bearing capacity and anchoring, preventing cracking and moisture damage, while maintaining effective moisture drainage and thermal decoupling, thus improving the durability and reliability of ceramic paving in exterior applications.
Implementation Method 1
a liquid-impermeable sealing layer
Implementation Method 2
joint mortar that is applied to the top face bonds completely with the decoupling and sealing system
Implementation Method 3
an anchoring layer formed by a lattice-type structural element
Implementation Method 4
the very different coefficients of expansion of the substratum, the thin-bed mortar, and the ceramic paving, which are brought about by the very high temperature differences
Data Source
AI summary
The invention relates to a multi-layer decoupling and sealing system (1), in particular for the laying of ceramic paving (10) according to a thin-bed method (12). Said system comprises a layered construction containing, from the base upwards, a liquid-impermeable sealing layer (4), an anchorage layer (2, 3) that is configured from a lattice-type structural element and that is used to hold a filler material (12), which is to be incorporated into the upper face of the decoupling and sealing system (1) and which is plastic during processing and subsequently cures, in addition to a reinforcement layer (5), which is fixed, at least in some sections, to the anchorage layer (2, 3). This improves the load-bearing capacity of the decoupling and sealing system (1) and the bonding properties of ceramic paving (10) that is laid in a conventional manner on the decoupling and sealing system (1).