Bone Glue Modified Asphalt Binder Rheology

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Solution Overview

Problem

The high energy consumption and cost of polymer-modified asphalt binder processes, along with the rising prices of synthetic polymers, limit the widespread use of improved asphalt binders, particularly in developing countries, where energy costs are significant and polymer prices are prohibitive.

Innovation Solution

The use of animal protein-based Bone Glue, derived from collagen from animal by-products, as a modifier for asphalt binders, which can be mixed at lower temperatures and is more cost-effective, reducing energy consumption and environmental waste.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If polymer-modified asphalt binder is used to improve rheological characteristics and resistance to rutting and fatigue cracking, then pavement durability is improved, but energy consumption and processing cost increase significantly

Engineering Contradiction:

Improvepavement durabilityVSAvoidenergy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent changes the chemical composition parameters of the asphalt binder by incorporating bone glue (collagen) at specific concentrations (5-20% by weight), which modifies the rheological properties and improves pavement durability without requiring the high energy input associated with synthetic polymer modification processes

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent substitutes expensive synthetic polymers with a cheaper alternative (bone glue/collagen) that can be derived from animal by-products, significantly reducing the cost of modification while maintaining the functional benefits of improved rheological characteristics and resistance to rutting and fatigue cracking

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Reliability

If polymer-modified asphalt binder is used to improve resistance to rutting and fatigue cracking, then pavement durability is improved, but processing cost increases due to rising polymer prices

Engineering Contradiction:

Improveresistance to rutting and fatigue crackingVSAvoidprocessing cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent replaces expensive synthetic polymers with bone glue, a material derived from animal by-products that is significantly cheaper and more readily available, thereby reducing processing costs while maintaining the ability to improve resistance to rutting and fatigue cracking

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent modifies the chemical composition of the asphalt binder by incorporating bone glue at optimized concentrations (5-20% by weight), which achieves the desired improvement in resistance to rutting and fatigue cracking at a lower cost than synthetic polymer modification

Inventive Principle:

Principle #35Parameter changes

3Productivity

If traditional asphalt binder processing is used to reduce cost and energy consumption, then processing efficiency is maintained, but rheological characteristics and resistance to rutting and fatigue cracking are insufficient

Engineering Contradiction:

Improveprocessing efficiencyVSAvoidrheological characteristics

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent modifies the chemical composition parameters of the asphalt binder by adding bone glue (collagen) at specific concentrations (5-20% by weight), which enhances rheological characteristics and resistance to rutting and fatigue cracking while maintaining processing efficiency and not significantly increasing energy consumption

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS10040940B2Bone glue modified asphalt

Publication Date: 2018.08.07 UNIVERSITY OF LOUISIANA AT LAFAYETTE

AI summary

The disclosed invention is a method for using collagen extracted from animal bones, hides, and flesh waste as a protein-based glue (Bone Glue) to create asphalt with a modified asphalt binder. The method comprises of mixing Bone Glue with water, adding it to an asphalt binder, evaporating the water, adding the modified binder to aggregate and mixing at an elevated temperature. The modified asphalt binder consists of a predetermined amount of Bone Glue and asphalt binder.