Carbon Black Soil Stabilizer for Strength and Permeability

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Solution Overview

Problem

Conventional soil stabilization methods using materials like cements, lime, and polymers are costly and difficult to handle, necessitating a more effective and efficient stabilization solution.

Innovation Solution

The use of a carbonaceous material, specifically carbon black, as a soil stabilizer, which can be mixed with soil to enhance strength and reduce permeability, thereby improving road surface durability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If conventional stabilization aids (cements, lime, polymers) are used to stabilize soil, then soil strength is improved, but cost and handling difficulty increase

Engineering Contradiction:

Improvesoil strengthVSAvoidhandling difficulty

Core Design Contradiction:

StrengthVSEase of operation

Solution Approach 1:

The patent changes the chemical composition parameter of the stabilizer from conventional materials (cements, lime, polymers) to carbonaceous materials such as carbon black, charcoal, or graphite. This parameter change maintains soil strength improvement while dramatically reducing handling difficulty and cost, as carbonaceous materials are more readily available and easier to mix with soils

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent substitutes expensive conventional stabilization aids with inexpensive carbonaceous materials. Carbon black, charcoal, and graphite are significantly cheaper than cements, lime, or polymers, allowing for cost-effective soil stabilization without compromising structural integrity

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Strength

If conventional stabilization aids (cements, lime, polymers) are used to stabilize soil, then soil strength is improved, but cost increases

Engineering Contradiction:

Improvesoil strengthVSAvoidcost

Core Design Contradiction:

StrengthVSQuantity of substance

Solution Approach 1:

The patent replaces expensive conventional stabilization aids with inexpensive carbonaceous materials. Carbon black, charcoal, and graphite are significantly cheaper than cements, lime, or polymers, allowing for cost-effective soil stabilization while maintaining improved soil strength and road surface durability

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Strength

If carbon black is mixed with soil to enhance strength, then soil strength increases, but mixing complexity increases

Engineering Contradiction:

Improvesoil strengthVSAvoidmixing complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The patent changes the physical form parameter of the stabilizer to fine particulate carbonaceous materials that naturally disperse well in soil. This parameter change reduces mixing complexity compared to conventional materials that require specialized equipment or procedures, making the mixing process more straightforward while still achieving enhanced soil strength

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS8894322B2Soil stabilizer containing carbonaceous material and methods for using same

Publication Date: 2014.11.25 BOARD OF RGT THE UNIV OF TEXAS SYST

AI summary

A soil stabilizer containing a carbonaceous material is disclosed, together with methods for preparing and using the soil stabilizer.