grit

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grit

1. any coarse sandstone that can be used as a grindstone or millstone
2. Engineering an arbitrary measure of the size of abrasive particles used in a grinding wheel or other abrasive process

Grit

 

cemented gravel with the texture of sandstone. Grit is widely distributed among sedimentary formations. Its presence is evidence of the intensive erosion of more ancient layers, and it indicates the proximity of a shoal, dry land, or rises (positive forms of basin bottom relief).

grit

[grit]
(geology)
A hard, sharp granule, as of sand.
A coarse sand.
(materials)
An abrasive material composed of angular grains.
(petrology)
A sandstone composed of angular grains of different sizes.

grit

A granular abrasive material (e.g., consisting of particles of aluminum oxide or silicon carbide) which is used to coat cloth, paper, or wheels for sanding, grinding, or polishing; also used to provide a nonslip finish to a surface.
References in periodicals archive ?
The council said: "Gateshead Council gritted all priority routes on Wednesday afternoon in light of the Met Office forecast of snowfall from the early evening.
The only routes to be gritted in the city will be key routes including the A4232 link road, Central Link, Leckwith Road, Culverhouse Cross, Newport Road, High Street, St Mary Street and several others.
We had gritted extensively over the last few days, putting 150 tonnes of grit down with no rain to wash it away.
Others say we haven't gritted their road, but we discover it's not on the priority network.
It also wants drivers to be given swift and accurate information about which roads are gritted, so they can plan safe routes.
Grit bin locations are to be reviewed to identify areas where action by the public to assist and action taken to identify footways which should be gritted to ensure people can walk in safety.
At one meeting in Batley someone told us we'd not gritted, but the gritter had been out just before the meeting.
I came down the Chester Road past Boldmere Road and the snow was sticking to the main road because it had not been gritted.
The lack of co-ordination between the five different organisations carrying out road gritting can mean drivers set off on a gritted surface and end up on an icy one - even on the same road.
The roads which are gritted are agreed by all parties.
The news came as Colne Valley's Clr Nicola Turner called for gritting routes to be forecast and need based, rather than the whole priority network being gritted if it wasn't needed.
No side roads have been gritted in Birmingham again this year.