Cladding Element with Sealed Mortar Layers for Corrosion Protection

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Solution Overview

Problem

Existing formwork elements are difficult to process, aesthetically unpleasing, and prone to moisture penetration leading to corrosion and damage, especially when used in building structures with steel reinforcement.

Innovation Solution

A formwork element comprising a sealing layer between two formwork layers, each made of a mixture composition, particularly mortar, ensuring moisture-tight separation and easy processing, with optional cavities and reinforcing elements to enhance stability and aesthetics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If formwork elements have an epoxy coating as their outermost layer, then moisture protection is improved, but processing difficulty increases and aesthetic appearance deteriorates

Engineering Contradiction:
Improvemoisture protectionVSAvoidprocessing difficulty
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The formwork element is divided into multiple layers: a first formwork layer in contact with the building structure, a sealing layer for moisture protection, and a second formwork layer as the outer surface. This segmentation allows each layer to have specialized functions - the sealing layer provides moisture protection while the second formwork layer provides an aesthetically pleasing and easily processable surface, resolving the contradiction between moisture protection and processing ease.

Inventive Principle:
Principle #1Segmentation

2Temperature

If formwork elements contain embedded insulation elements, then thermal insulation is improved, but waterproofing performance deteriorates

Engineering Contradiction:
Improvethermal insulationVSAvoidwaterproofing performance
Core Design Contradiction:
TemperatureVSReliability

Solution Approach 1:

The sealing layer acts as an intermediary between the first formwork layer and the second formwork layer, creating a continuous moisture-tight barrier that prevents water penetration even when insulation elements are embedded within the formwork structure. This intermediary layer ensures waterproofing performance is maintained while allowing thermal insulation elements to be integrated.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of manufacture

If formwork elements use a single-layer structure, then manufacturing simplicity is improved, but moisture protection capability deteriorates

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidmoisture protection capability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The formwork element uses a composite structure with at least three different layers: a first formwork layer, a sealing layer, and a second formwork layer. Each layer can be made from appropriate materials optimized for its specific function - the sealing layer provides superior moisture protection while the formwork layers provide structural integrity and surface quality, achieving enhanced moisture protection while remaining manufacturable.

Inventive Principle:
Principle #40Composite materials

Data Source

PatentEP4600433A1Cladding element
Publication Date: 2025.08.13 INSTITUT FÜR MATERIALPRÜFUNG BAUBERATUNG & ANALYTIK
  • EP4600433A1 patent drawingFigure 1~2
  • EP4600433A1 patent drawingFigure 3~4
  • EP4600433A1 patent drawingFigure 5~7

AI summary

A formwork element (1) comprising a) a sealing layer (2) and b) a first (3) and a second (3') formwork layer, each of the first (3) and the second (3') formwork layer comprising a mixture composition, in particular mortar, wherein the sealing layer (2) is present between the first (3) and the second (3') formwork layer, so that the first (3) and the second (3') formwork layer are separated from each other in a moisture-tight manner.