Multi-layer concrete block for a paving, as well as paving and method for producing a concrete block
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Solution Overview
Problem
Existing multi-layer concrete blocks with water-absorbing, porous layers suffer from reduced stability, particularly under heavy loads, leading to cracks and breaks during processing and use.
Innovation Solution
A concrete block design featuring a three-layer structure with a high-strength concrete base layer providing increased tensile strength, a porous core layer for water absorption, and a face layer, ensuring enhanced stability and resistance to mechanical stresses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If porous layers are used in the block structure to enable water absorption and permeability, then water permeability and storage capacity are improved, but compressive and tensile stability of the concrete block deteriorates
Solution Approach 1:
The concrete block is divided into multiple functional layers: a water-permeable base layer for drainage, a porous core layer for water absorption and storage, and a stabilizing face layer for mechanical strength. This segmentation allows each layer to optimize its specific function without compromising the overall block performance.
Solution Approach 2:
Different regions of the block are assigned different material properties: the base layer uses permeable material for water infiltration, the core layer uses highly porous material for maximum water storage, and the face layer uses dense, high-strength material for mechanical stability. This local differentiation resolves the contradiction between permeability and strength.
2Quantity of substance
If porous layers are used in the block structure to enable water absorption, then water storage capacity is improved, but tensile stability of the concrete block deteriorates
Solution Approach 1:
The block combines multiple concrete types with complementary properties: permeable concrete for water infiltration, porous concrete for storage capacity, and high-strength concrete for tensile resistance. This composite structure allows the block to achieve high water storage capacity while maintaining adequate tensile stability through the reinforcing face layer.
3Reliability
If multi-layer structure with porous core layer is used, then water absorption capability is improved, but block stability under heavy loads deteriorates
Solution Approach 1:
The face layer is specifically designed with high compressive strength and low porosity to bear heavy loads, while the core layer maintains high porosity for water absorption. This local differentiation of material properties allows the block to achieve both excellent water absorption capability and high load-bearing stability.
Solution Approach 2:
The combination of porous core concrete and dense face concrete creates a composite structure where the weak porous core provides water storage functionality while the strong face layer provides load-bearing capacity, resolving the contradiction between water absorption and load stability.
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 high-strength concrete base layer significantly improves the block's stability, reducing the risk of cracks and breaks, allowing for lower height and material usage while maintaining water permeability and storage capabilities.
Implementation Method 1
the multi-layer concrete blocks of the type mentioned, due to their structure and the nature of the individual layers, in particular, also due to the nature of the concrete used for producing the individual layers are designed in such a way that they comprise a certain or desired water permeability or water penetrability and/or also a certain or desired water storage capacity
Implementation Method 2
the second concrete-block layer, which is formed as a core concrete layer, is disposed between the first and third concrete-block layers... a porous core layer for water absorption
Implementation Method 3
the third concrete-block layer is designed as a high-strength concrete base layer with increased tensile strength, wherein the increased tensile strength of the third concrete-block layer is increased in comparison with the tensile strength of the second concrete-block layer
Implementation Method 4
the third concrete-block layer is designed as a high-strength concrete base layer with increased tensile strength
Implementation Method 5
rainwater can also be stored, which can counteract a so-called urban 'heat island effect' by increasing water evaporation, as evaporative cooling occurs when water evaporates
Data Source
AI summary
The invention relates to a concrete block in the form of a planar element that can be laid in combination in order to create a paving. The concrete block has at least one multi-layer concrete block body having at least one concrete-block lower face suitable for being laid on a foundation layer of an underlying surface, and a concrete-block upper face opposite thereto. The multi-layer concrete block body has at least one first concrete-block layer disposed on the concrete-block upper face and in the form of a face concrete layer, at least one second concrete-block layer in the form of a core concrete layer, as well as a third concrete-block layer. The second concrete-block layers is disposed between the first and the third concrete-block layer. The third concrete-block layer has an increased tensile strength.