Paving Stone Composite Elements for Joint Material Introduction
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Solution Overview
Problem
Existing paving stone systems fail to accommodate dimensional tolerances and laying errors across multiple stones, leading to inadequate joint material introduction and potential damage from temperature fluctuations.
Innovation Solution
The paving stone design features composite elements on its flanks, with at least two configurations: one extended perpendicular to the flank and another in a grid pattern, ensuring minimal contact area and allowing sufficient joint material introduction by using a key/lock principle to prevent shifting and accommodate dimensional differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If composite elements are arranged in a grid pattern on all stone flanks to prevent displacement, then stability against shifting is improved, but the contact area between stones increases and joint material introduction is restricted
Solution Approach 1:
The composite elements are segmented into two distinct types: grid-arranged composite elements for stability and individually positioned composite elements for spacing. This segmentation allows each type to fulfill its specific function without interfering with the other, resolving the contradiction between stability and contact area reduction.
Solution Approach 2:
Different regions of the stone flanks are assigned different qualities: grid-arranged composite elements provide general stability across the surface, while individually positioned composite elements create localized spacing zones. This local differentiation enables simultaneous achievement of stability and reduced contact area.
2Stability of the object's composition
If composite elements are made broader to fix stones against one another and prevent accumulation of dimensional errors, then stability is improved, but the ability to introduce joint material at these points is reduced
Solution Approach 1:
The composite element system is segmented into grid-arranged elements that provide positional fixing and individually positioned elements that create spacing. This segmentation allows broader elements to fulfill the fixing function while narrower elements preserve joint material access, resolving the contradiction between stability and joint material introduction.
3Reliability
If spacer elements are applied to ensure minimum distance between stones, then protection against temperature fluctuations is improved, but the contact area increases and joint material introduction is hindered
Solution Approach 1:
The individually positioned composite elements act as intermediary spacing features that maintain minimum distances between stones for thermal protection while preserving joint material access. These elements mediate between the need for spacing and the need to maintain low contact area for joint material introduction.
Data Source
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AI summary
The invention relates to a paving stone (1) having stone flanks (2) oriented preferably perpendicular to the laying plane. Composite elements (A, B, C, D) corresponding to composite elements (A, B, C, D) of a stone flank (2) of an adjacent paving stone (1) are formed at the stone flanks (2). At least two designs of composite elements A, B or C, D are provided, which differ at least in that the composite elements (C, D) of one design are elongated with respect to the composite elements (A, B) of the other design in a direction perpendicular to the stone flank (2). At least one composite element A, B or C, D of each design is formed at each stone flank (2). The composite elements (A, B, C, D) formed on the stone flanks (2) are arranged in a grid spacing such that each composite element (A, B, C, D) has a uniform horizontal distance to adjacent composite elements (A, B, C, D) of the same stone flank (2). At least two composite elements (C, D) are in each case offset in a mirror-inverted manner within the positions thereof between two composite elements A, B or a composite element A, B and a vertical stone edge (5) such that the composite elements C, D are arranged outside of the grid spacing. At least one composite element A, B arranged in the grid spacing is located between the composite elements C, D arranged offset.