On-Site Concrete Mixing Line with Pre-Packaged Materials
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Solution Overview
Problem
Current concrete production and pumping processes face issues such as decreased durability, increased transportation costs, non-uniform mixture affecting strength, and instability in aggregate gradation, leading to resource wastage and compromised quality, which hinder the development of high-strength, long-lasting, and environmentally friendly concrete.
Innovation Solution
A production line combining on-site mixing and construction, featuring a modular mixing equipment with high-speed planetary powder mixers, automated dispensing, and quantitative material packs, connected to a concrete conveying device, allowing for precise mixing and pouring directly at the construction site, minimizing waste and resource consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If ready-mixed concrete pumping is used to ensure workability during transportation, then concrete can be transported to construction sites within 2 hours, but excessive admixtures are required which compromise long-term quality stability and durability
Solution Approach 1:
The patent pre-packages aggregates, powders, and admixtures in predetermined proportions within sealed containers before transportation. This preliminary preparation eliminates the need for excessive admixtures during mixing, as all components are precisely measured in advance, thereby maintaining long-term quality stability while enabling efficient transportation.
Solution Approach 2:
The patent divides concrete components into separate sealed containers (aggregates, powders, admixtures) that are transported independently and combined at the construction site. This segmentation prevents premature mixing and reduces the need for excessive admixtures, resolving the contradiction between transportation efficiency and long-term quality stability.
2Ease of manufacture
If mechanical mixing is used to blend concrete components, then mixing can be performed with simple equipment, but non-uniform distribution of fine powders results in hidden cracks and reduced strength
Solution Approach 1:
The patent pre-mixes powders and admixtures in sealed containers before transportation. This preliminary mixing ensures uniform distribution of fine particles throughout the concrete matrix, eliminating hidden cracks and enhancing strength while maintaining equipment simplicity.
Solution Approach 2:
The patent achieves homogeneous distribution of fine powders by pre-mixing them with aggregates in sealed containers during the packaging stage. This ensures uniform material distribution throughout the concrete, preventing localized weaknesses and improving overall strength without requiring complex mixing equipment.
3Measurement precision
If traditional on-site mixing is replaced by ready-mixed concrete pumping, then environmental and measurement precision issues are addressed, but transportation costs increase and resource waste occurs
Solution Approach 1:
The patent uses sealed containers that can be fully emptied of concrete materials, eliminating the 5% waste typically left in traditional mixing trucks. The containers are designed for complete discharge, recovering all valuable materials and reducing resource waste while maintaining measurement precision.
Solution Approach 2:
The patent employs disposable or single-use sealed containers for concrete material transportation. These containers are designed for one-way use, eliminating the need for expensive cleaning and maintenance of reusable mixing trucks, thereby reducing transportation costs and resource waste while ensuring precise material measurement.
4Manufacturing precision
If quantitative material packs with pre-determined formulations are used, then mixing precision and concrete quality are improved, but device complexity increases due to packaging and transfer mechanisms
Solution Approach 1:
The patent pre-packs aggregates, powders, and admixtures in predetermined proportions within sealed containers during the manufacturing stage. This preliminary preparation ensures precise material formulation and uniform concrete mixture quality, while the packaging complexity is resolved in advance rather than at the construction site.
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 approach ensures high-quality, high-strength concrete with reduced production costs, minimized waste, and enhanced durability, while promoting a green and efficient construction process by eliminating the need for excessive admixtures and optimizing material handling and transportation.
Implementation Method 1
The mixing equipment may include a high-speed planetary powder mixer
Implementation Method 2
The concrete pump may include a hydraulic pressure
Data Source
AI summary
A production line combining on-site mixing and construction for a green and ultra-high-performance concrete includes a concrete manufacturing area and raw material stacking area located directly at a construction site. A mixing equipment is provided on the concrete manufacturing area. A concrete discharge end of the mixing equipment is connected to a construction pouring area through a concrete conveying device. A plurality of quantitative material packs and a transfer mechanism are provided in the raw material stacking area. The transfer mechanism is configured for both the stacking of the plurality of quantitative material packs and the transfer of at least one package per time to the mixing equipment. The production line features a straightforward overall structure, convenient operation, cost-effective equipment investment, minimal space occupancy, and enables integrated on-site manufacturing and pouring of concrete.