grit

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Related to gritting: gritting teeth

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 ?
In a statement on its website, Northumberland County Council said: "Teams have been carrying out gritting in the west, north and south east of the county from 6pm on Wednesday and a night shift operated from 10pm.
A spokesperson for North Tyneside Council said: "In line with our winter maintenance procedures, our fleet of gritting vehicles, which are equipped with snowploughs, were deployed on Thursday morning to treat the 240 miles of main roads and bus routes."
Even if they were gritting just once a day, the amount of usage since December 23 and the lack of any deliveries since would render the council's salt supplies precariously low.
The gritting fleet is operated on behalf of SWTRA by local councils throughout South and West Wales.
"Our gritting operators have racked up over 4,193 hours, often working overnight in order to make our roads and pavements safe.
"When I spoke to (the driver) he said they were only gritting A-roads.
"It is not currently sustainable for the council to continue gritting all roads that it would normally treat," said a spokesman.
Calderdale officials have U-turned on a proposal to prioritise gritting the area's busiest roads after the Examiner's report earlier caused a backlash from concerned residents and motorists.
The council also has a fleet of 29 gritting vehicles, two snow blowers based in the rural areas and five gully tankers which are available to assist anywhere in the county where flooding is caused by rapid snow melt.
Tax officials have asked for views on a consultation document - Use of Rebated Fuel for Gritting in Rural Areas - from anyone who would be affected by the changes, or is involved in doing gritting work.
He said: "I am calling on parish councils to take up the gritting gauntlet.
"This is not the case, gritting crews have been working through the night to try and keep the primary road network clear."