Moisture-proof structure
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Solution Overview
Problem
Existing moisture-proof structures fail to effectively prevent moisture caused by both condensation on cold floors and underground water surging, leading to indoor humidity issues.
Innovation Solution
A multi-layered structure of fire bricks with vertically and horizontally staggered air channels, bonded with cement slurry and filled with lime powder, combined with a lime layer or cement mortar for additional moisture absorption and disinfection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional building structure (foundation, cushion layer, surface layer) is used, then construction is simple, but moisture-proof performance is insufficient for both condensation and underground water
Solution Approach 1:
The floor structure is divided into multiple functional layers: foundation layer, cushion layer, and surface layer, with the surface layer further segmented into breathable concrete layer, moisture-proof layer, and wear-resistant layer. Each layer addresses specific moisture-related functions, collectively providing comprehensive moisture-proof performance against both condensation and underground water.
Solution Approach 2:
The patent employs composite material strategies by combining different materials with complementary properties: breathable concrete (cementitious material with permeability), extruded polystyrene board (closed-cell foam for vapor barrier), and lime powder (hygroscopic material). This composite approach creates a multi-functional moisture-proof system that handles multiple moisture sources simultaneously.
2Reliability
If extruded polystyrene board is used as moisture-proof layer, then underground water surging is prevented, but condensation moisture is not addressed
Solution Approach 1:
The moisture-proof system is designed with multi-functionality to address multiple moisture sources. The breathable concrete layer handles condensation through vapor permeability, while the extruded polystyrene board blocks underground water. The lime powder provides additional moisture absorption capacity. This universal design makes the system effective against both condensation and underground water simultaneously.
Solution Approach 2:
Different layers are assigned different material properties suited to their specific functions: the breathable concrete layer has high vapor permeability for condensation management, the extruded polystyrene board has low permeability for underground water blocking, and the lime powder has hygroscopic properties for supplemental moisture control. Each layer's local quality matches its specific moisture-control task.
3Ease of operation
If breathable concrete layer is added to address condensation, then moisture removal improves, but structure complexity increases
Solution Approach 1:
The surface layer is segmented into distinct functional sub-layers: breathable concrete layer for vapor transmission, moisture-proof layer for liquid water blocking, and wear-resistant layer for protection. This segmentation allows each component to be optimized for its specific function while maintaining overall system manageability through clear functional separation.
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 structure provides effective ventilation, moisture removal, and disinfection, maintaining a comfortable indoor environment by addressing both condensation and underground water issues while utilizing the thermal properties of fire bricks.
Implementation Method 1
densely distributed air channels which are vertically and horizontally staggered are formed at a gap between the fire bricks, so as to achieve the effects of ventilation and moisture removal
Implementation Method 2
achieve the effects of ventilation and moisture removal
Implementation Method 3
the water-absorbing, disinfecting, and sterilizing effects of the lime powder
Implementation Method 4
using the characteristic of being warm in winter and cool in summer of the fire bricks
Implementation Method 5
using the characteristic of being warm in winter and cool in summer of the fire bricks
Data Source
AI summary
A moisture-proof structure comprises a first fire brick layer, a second fire brick layer, a third fire brick layer, a fourth fire brick layer, a fifth fire brick layer and a floor/ceramic tile layer arranged from bottom to top. The five fire brick layers are all laid by using stretcher bond, the fourth fire brick layer is laid by using a means of header bond, upper and lower layers of the first fire brick layer, the second fire brick layer, the third fire brick layer, the fourth fire brick layer and the fifth fire brick layer are bonded by using a cement slurry, a gap between fire bricks of the first fire brick layer is filled with lime powder and fire bricks of the fourth fire brick layer and the fifth fire brick layer are closely connected.