Stratified Cementitious Panel Single-Pour Method
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The production of multi-layered concrete panels is expensive and has performance weaknesses due to the boundaries between successive layers, as they require multiple casting and curing steps, and existing methods for forming stratified cementitious bodies are inefficient.
Innovation Solution
A method for forming a stratified cementitious body by mixing a cementitious binder with aggregate materials and water to create a slurry with controlled yield shear stress and plastic viscosity, allowing it to stratify under gravitational and buoyancy forces, and applying vibrations to encourage layering in a single pour, resulting in a homogeneous stratified panel with distinct dense and less dense aggregate layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple casting and curing steps are used to form multi-layered concrete panels, then the physical properties can be refined, but the production cost increases and performance weaknesses occur at layer boundaries
Solution Approach 1:
The patent combines multiple casting steps into a single casting operation by forming a heterogeneous slurry containing both light and dense aggregates that stratifies during a single pour, eliminating the need for multiple separate casting and curing cycles while maintaining the ability to produce multi-layered panels with refined physical properties
Solution Approach 2:
The patent controls the rheological parameters of the slurry, specifically maintaining yield stress between 1-100 Pa and plastic viscosity between 1-50 Pa·s, to enable proper stratification of aggregates during a single cast. These parameter adjustments allow the slurry to flow and stratify correctly without requiring multiple processing steps
2Productivity
If a slurry with low yield shear stress and low plastic viscosity is used, then the slurry stratifies efficiently into layers, but the slurry may be difficult to handle
Solution Approach 1:
The patent optimizes the rheological parameters within specific ranges (yield stress: 1-100 Pa, plastic viscosity: 1-50 Pa·s) to achieve the optimal balance between stratification efficiency and handling ease. These controlled parameter changes ensure the slurry flows sufficiently for stratification while remaining manageable during pouring
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
This method enables the production of stratified cementitious panels with improved structural strength and thermal insulation in a single pour, reducing production costs and eliminating performance weaknesses at layer boundaries, while maintaining homogeneity and efficient stratification.
Implementation Method 1
allowing the slurry to stratify into layers under the influence of gravitational forces and/or buoyancy forces
Implementation Method 2
allowing the slurry to stratify into layers under the influence of gravitational forces and/or buoyancy forces
Implementation Method 3
applying vibrations to the slurry to encourage the slurry to stratify into layers
Data Source
Figure 1A~1F
Figure 2
Figure 3
AI summary
The present invention relates to a method for forming a stratified cementitious body comprising placing a cementitious slurry comprising a cementitious binder, to form the body in a single pour and curing the slurry to form a stratified cementitious body. The method may also comprise the steps of mixing a cementitious binder and at least one aggregate material with water to form a slurry, pouring the slurry into a mould, allowing the slurry to stratify into layers under the influence of gravitational forces and/or buoyancy forces, optionally applying vibrations to the slurry to encourage the slurry to stratify into layers, and curing the slurry to form a stratified cementitious body.