Microtexture

Microtexture

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]

Contents

Vehicular pavement engineering

Microtexture (MiTx) is a family of wave-shaped road surface characteristics. While vehicle suspension deflection and dynamic tyre loads are affected by longer waves (roughness), road texture affects the interaction between the road surface and the tyre footprint. Microtexture has wavelengths shorter than 0.5 mm. Other types of road texture are Macrotexture and Megatexture (roads).

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 tires.

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.

Further reading

Line notes

  1. ^ Microtexture Determination and its Applications (Second edition), V Randle, 2003

References



Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • microtexture — [mikʀotɛkstyʀ] n. f. ÉTYM. V. 1975; de micro , et texture. ❖ ♦ Didact. (minér.). Texture très fine. ❖ DÉR. Microtextural …   Encyclopédie Universelle

  • microtexture — noun The set of crystallographic orientations whose components are linked to their individual location in the microstructure …   Wiktionary

  • Profilometer — is a measuring instrument used to measure a surface s profile, in order to quantify its roughness. Vertical resolution is usually in the nanometre level, though lateral resolution is usually poorer.While the historical notion of a profilometer… …   Wikipedia

  • Airfield rubber removal — Airfield rubber removal, also known as runway rubber removal, is the use of high pressure water, abrasives, chemicals and/or other mechanical means to remove the rubber that builds up on airport landing strips. The Federal Aviation Administration …   Wikipedia

  • Road — This article is about a route, thoroughfare or way that supports travel by a means of conveyance. For a place outside a harbor where a ship can lie at anchor, see Roadstead. For public roads, see Highway. For other routes, see thoroughfare. For… …   Wikipedia

  • Texture (crystalline) — In materials science, texture is the distribution of crystallographic orientations of a polycrystalline sample. A sample in which these orientations are fully random is said to have no texture. If the crystallographic orientations are not random …   Wikipedia

  • Electron backscatter diffraction — An electron backscatter diffraction pattern An electron backscatter diffraction pattern of monocrystalline silicon, taken …   Wikipedia

  • Pole figure — A pole figure is a graphical representation of the orientation of objects in space. For example, pole figures in the form of stereographic projections are used to represent the orientation distribution of crystallographic lattice planes in… …   Wikipedia

  • Texture (roads) — Road surface texture is divided into: * Microtexture, with wavelengths up to 0.5 mm * Macrotexture, with wavelengths from 0.5 mm up to 50 mm * Megatexture (roads),with wavelengths from 50 mm up to 500 mm …   Wikipedia

  • Megatexture (roads) — Megatexture (MeTx) is a family of wave shaped road surface characteristics. While vehicle suspension deflection and dynamic tyre loads are affected by longer waves (roughness), road texture affects the interaction between the road surface and the …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”