Reinforced Plaster Interior Elements for Seamless Crack-Resistant Walls

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Solution Overview

Problem

Existing interior decoration systems often develop cracks, splits, and apertures over time due to material property differences between construction elements and wall plastering, leading to a loss of seamless integration and aesthetic appeal, especially in modern and hygienic environments.

Innovation Solution

The use of reinforced wall plastering material for both the body and joining elements of interior decoration elements, such as glass-reinforced gypsum, ensures a strong bond with the wall plaster, reducing the risk of cracks and providing improved strength, rigidity, and impact resistance, allowing for seamless integration and easy production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If construction elements are mounted to walls before plastering and covered with plaster to achieve seamless integration, then aesthetic appearance is improved, but connection reliability deteriorates over time causing cracks and splits

Engineering Contradiction:
Improveseamless integrationVSAvoidconnection stability
Core Design Contradiction:
ShapeVSReliability

Solution Approach 1:

The construction element is made from the same reinforced wall plastering material as the wall plaster itself, creating material homogeneity. This ensures both elements expand and contract uniformly with temperature and humidity changes, preventing differential movement that causes cracks and maintains seamless integration over time.

Inventive Principle:
Principle #33Homogeneity

Solution Approach 2:

The invention uses reinforced wall plastering material containing fibrous reinforcement (such as glass fibers) that provides both the seamless aesthetic quality and enhanced mechanical strength. The composite structure with distributed fibers prevents crack propagation and maintains connection reliability while achieving the desired seamless appearance.

Inventive Principle:
Principle #40Composite materials

2Ease of manufacture

If conventional materials are used for construction elements, then ease of manufacture is maintained, but bond strength with wall plaster deteriorates leading to cracks

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidbond strength
Core Design Contradiction:
Ease of manufactureVSStrength

Solution Approach 1:

Using the same reinforced plastering material for both the construction element and wall plaster eliminates material incompatibility issues. The homogeneous material composition ensures strong chemical and mechanical bonding while maintaining ease of manufacture through standardized production processes for reinforced plaster products.

Inventive Principle:
Principle #33Homogeneity

Solution Approach 2:

The invention changes the material parameters by incorporating fibrous reinforcement into the plastering material, transforming it from a brittle conventional plaster to a toughened composite material. This parameter change enhances bond strength and crack resistance while the material remains processable using standard plastering manufacturing techniques.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If construction elements are made from materials different from wall plaster, then manufacturing versatility is improved, but material compatibility deteriorates causing differential expansion and cracking

Engineering Contradiction:
Improvematerial selection flexibilityVSAvoidmaterial compatibility
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The construction element is manufactured from the same reinforced wall plastering material as the wall, ensuring homogeneous composition and compatible thermal-hygrometric behavior. This eliminates differential expansion and contraction that would otherwise cause cracking at the interface between different materials.

Inventive Principle:
Principle #33Homogeneity

4Strength

If reinforced wall plastering material is used for construction elements, then bond strength and crack resistance are improved, but weight of the element increases

Engineering Contradiction:
Improvebond strength and impact resistanceVSAvoidelement weight
Core Design Contradiction:
StrengthVSWeight of moving object

Solution Approach 1:

The reinforced plastering material uses lightweight fibrous reinforcements (such as glass fibers) dispersed in the plaster matrix. These fibers provide significant strength and crack resistance improvements while adding minimal weight compared to conventional solid materials, achieving high strength-to-weight ratio.

Inventive Principle:
Principle #40Composite materials

Data Source

PatentEP1873325B1Interior decoration system
Publication Date: 2009.03.11 UNDER COVER
  • EP1873325B1 patent drawingFigure 1~4
  • EP1873325B1 patent drawingFigure 5~7
  • EP1873325B1 patent drawingFigure 8~10

AI summary

A construction element (1) for use in interior decoration of a building construction (5), comprising a body (2) having a functional, non planar shape, adapted for fulfilling an additional function with respect to wall plastering (6), characterised in that the construction element (1) comprises joining elements (4) at one or more peripheral edges (3) of the body (2), adapted for being covered with wall plastering (6), the body (2) and the joining elements (4) being constructed in a reinforced wall plastering material.