FCS3

Table 11 Predicted Crumb Rubber Attribute Effects Matrix for Case Study 2

Dir of Change

Abrasion Resistance

Skid Resistance

Attribute

Viscosity

Adhesion

Solids









Particle Size* Particle Size Distribution** Heat history

NA

NA

Broad

~

~

~

−

~

−

−

−

−



NA

−











Loading

 





− 

Surface Area

NA 

* Poor interfacial adhesion is assumed, since this is typical in most crumb rubber filled applications. ** The effect of particle size distribution can vary depending on the relative shape, breadth and location of the distribution.

Contractor’s Report

26