Microtexture
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Microtexture is the collative term for a material's crystallographic parameters and other aspects of microstructure: such as morphology, including size and shape distributions; chemical composition; and crystal orientation and relationships[1]
[edit] Vehicular pavement engineering
Micro Texture (MiTx) is a family of road surface characteristics with sizes below 0.5 mm.
MiTx contributes to dry road surface friction.
It relates to the surface of the binder, of the ballast, and of contaminations such as rubber deposits from tyres.
Typically, road agencies do not monitor MiTx directly, but indirectly by brake friction tests. However, friction also depends on other surface properties, such as Macrotexture.
[edit] Further reading
- Development of a Fundamental Skid Resistance Asphalt Mix Design Procedure, Pavement Management Service, Sydney, Australia
- Relationship of Aggregate Microtexture to Asphalt Pavement Skid Resistance, ASTM International, West Conshohocken, United States
[edit] References
- ^ Microtexture Determination and its Applications (Second edition), V Randle, 2003

