Concrete Mixing Apparatus Using Bubble Ball-Bearing Dispersion
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Solution Overview
Problem
Current methods for producing high-performance concrete face challenges in uniformly dispersing admixtures like silica fume and increasing production costs due to the need for additional processing and transport, especially when producing structural materials with high air content, which affects strength and durability.
Innovation Solution
An apparatus and method that introduce air into normal concrete using bubbles and admixtures, utilizing a mixing unit with a rotating shaft and blades to disperse the admixtures uniformly, followed by high-pressure air discharge to reduce excess air content, allowing for on-site production of high-performance concrete with desired slump and strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If bubbles are added in large amount to normal concrete to disperse admixture uniformly, then admixture dispersion is improved, but air content increases which reduces strength
Solution Approach 1:
Bubbles are introduced into the concrete mixture before final setting to enable preliminary dispersion of admixture particles. The bubbles act as temporary carriers that distribute admixture uniformly throughout the concrete matrix during mixing, after which excess bubbles are removed to preserve strength.
Solution Approach 2:
The air content parameter is dynamically adjusted during the concrete manufacturing process. Bubbles are temporarily increased to improve dispersion, then excess air is reduced through controlled dissipation to maintain both dispersion quality and structural strength.
2Ease of operation
If bubbles are added to increase slump for better filling properties, then workability is improved, but excess air must be removed to maintain strength
Solution Approach 1:
Bubbles are preliminarily introduced to increase slump and improve workability during the mixing and placement phases. This preliminary action enables better filling properties, after which the concrete is processed to remove excess bubbles to restore strength characteristics.
Solution Approach 2:
The bubble content undergoes periodic changes during the concrete lifecycle: initially increased to improve workability, then gradually reduced through controlled dissipation to maintain strength, creating a time-dependent optimization of both workability and strength parameters.
3Manufacturing precision
If high-pressure air is used to discharge mixed concrete to reduce slump, then flow control is improved, but energy consumption increases
Solution Approach 1:
High-pressure air is utilized as a pneumatic mechanism to discharge mixed concrete and control slump during the shooting process. The compressed air provides the necessary force to move the concrete while allowing precise control over the discharge characteristics and final slump of the placed concrete.
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 method ensures uniform dispersion of admixtures, reduces production and construction costs, and achieves high strength and durability in high-performance concrete by controlling air content, enabling efficient on-site production.
Implementation Method 1
bubbles, which are to be removed, are added in a large amount together with an admixture to pre-blended normal concrete so that the admixture is uniformly dispersed in the normal concrete using the ball-bearing effect of the bubbles
Implementation Method 2
the mixed concrete is discharged using high-pressure air to thereby shoot high-performance concrete of which the slump, increased due to the large amount of bubbles, is reduced to fall within the range of slump of normal concrete while dissipating excess air from the mixed concrete
Data Source
AI summary
Disclosed is an apparatus and method for manufacturing high-performance concrete by introducing air into normal concrete and dissipating air, wherein high-performance concrete is formed in a manner in which bubbles, which are to be removed, are added in a large amount together with an admixture to pre-blended normal concrete so that the admixture is uniformly dispersed in the normal concrete using the ball-bearing effect of the bubbles, thus forming mixed concrete, and the mixed concrete is discharged using air at a high pressure of 5 atom or more to thereby shoot high-performance concrete of which the slump, remarkably increased due to the large amount of bubbles, is reduced to fall within the range of slump of normal concrete while dissipating excess air from the mixed concrete.