Composite Curing Agent for Fluid Solidified Soil Strength and Shrinkage
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Solution Overview
Problem
Existing fluid solidified soil exhibits low compressive strength, large shrinkage deformation, and poor durability, limiting its effectiveness in road engineering applications.
Innovation Solution
A self-curing fluid solidified soil composite curing agent composed of specific ratios of cement, slag, gypsum, calcium carbide slag, microbial curing agent, and self-curing microbeads, which enhance compressive strength, inhibit shrinkage, and improve durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fillers are used in roadbed filling, then natural resources are consumed and dust pollution occurs, but the compaction in narrow spaces is insufficient
Solution Approach 1:
The patent changes the physical state of the filling material from solid traditional fillers to a fluid solidified soil composition. This parameter change enables the material to flow into narrow spaces for complete filling, then solidify to provide adequate compaction quality while eliminating dust pollution associated with traditional dry fillers
Solution Approach 2:
The patent creates a composite material system consisting of soil, cement, water, and optional additives. This composite formulation combines the advantages of natural soil with binding agents to achieve both excellent flowability for narrow space filling and sufficient strength for structural support, resolving the contradiction between compaction quality and environmental harm
2Quantity of substance
If blast furnace slag and carbide slag are used as raw materials, then waste resources are intensively utilized, but the compressive strength is low and shrinkage deformation is large
Solution Approach 1:
The patent formulates a composite curing agent system combining multiple components (cement, calcium carbide slag, gypsum, and optional additives) in specific proportions. This composite approach leverages the waste resource content while the synergistic interaction between components compensates for the low strength and high shrinkage characteristics of individual waste materials
Solution Approach 2:
The patent optimizes the chemical composition parameters of the curing agent by controlling the ratios of different components and adjusting the water-cement ratio. These parameter changes enable the system to achieve adequate compressive strength and control shrinkage deformation while maintaining high waste resource utilization
3Object-affected harmful factors
If the fluid solidified soil is prepared with high waste content, then environmental benefits are achieved, but the durability is poor
Solution Approach 1:
The patent develops a composite curing agent system that combines cement, calcium carbide slag, and gypsum in optimized proportions. This composite formulation provides comprehensive performance enhancement, improving durability through synergistic chemical reactions while maintaining high waste resource content for environmental benefits
Solution Approach 2:
The patent applies different functional components in specific locations and proportions within the curing agent system. For example, cement provides structural strength, calcium carbide slag controls shrinkage, and gypsum accelerates early strength development. This localized quality distribution ensures durability is enhanced in critical areas while maintaining overall environmental sustainability
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 solution significantly improves compressive strength, reduces shrinkage deformation, and enhances durability, making it suitable for large-scale road engineering applications with environmental benefits.
Implementation Method 1
30-39% of microbial curing agent
Implementation Method 2
1-5% of self-curing microbeads
Data Source
AI summary
The present disclosure discloses a self-curing fluid solidified soil composite curing agent and its application, which is composed of the following raw materials by mass percentage: 30-35% of cement, 10-20% of slag, 10-20% of gypsum, 5-8% of calcium carbide slag, 30-39% of microbial curing agent, 1-5% of self-curing microbeads. The present disclosure can effectively improve the compressive strength of the fluid solidified soil while ensuring the early fluidity of the fluid solidified soil, inhibit the shrinkage deformation of the fluid solidified soil, and improve the durability of the fluid solidified soil. The present disclosure improves the recycling rate of solid waste resources and has the characteristics of low cost and remarkable environmental protection effect under the premise of ensuring the application effect, which is suitable for large-scale promotion and application.