Last fall and winter they came at least twenty times to a spot within forty feet of the rear window of my office, in order to feed upon the wheat screenings that we placed there for them.
The best food is wheat screenings placed under little tents of straw, bringing food and shelter together.
Hardpan or stone screenings are much preferred for this purpose if they can be had.
Binding material to produce the best results should be equal in hardness and toughness with the road stone; the best results are therefore obtained by using screenings or spalls from the broken stone used.
When the stone construction is made to the required depth or thickness, the whole surface should be subjected to a coat of screenings about one inch thick.
Water and binding material--stone screenings or good packing gravel--can be added if found necessary for proper consolidation.
For this purpose clay or the screenings from some other variety of stone may be utilized.
The lower course of broken stone is finished in the same manner as water-bound macadam, being bonded with stone screenings or with fine gravel of high clay content.
Depressions or ruts are repaired by first loosening the surface with a pick and then adding broken stone and screenings to restore the surface.
After the upper course has been rolled, the screenings are spread on it from piles alongside the road, enough being used to fill the voids in the layer of stone and furnish a slight excess.
During the period before raveling starts, it is comparatively easy to restore the road surface at any time by the addition of screenings or clay and sand.
As the screenings are spread they are rolled to work them into the voids.
The fine aggregate is generally natural sand, but a mixture of natural sand and stone screenings is sometimes employed.
The macadam is placed in a single layer and is rolled and bonded with screenings as described in the chapter dealing with water-bound macadam.
There will ordinarily be some stone dust and some screenings remaining on the surface at the time bituminous treatment is undertaken, and there may also be some caked mud or other foreign material.
Oiling a Gravel Road] If there is any dust or screenings on the road surface, the bituminous material will not adhere to the stones and will soon flake off under traffic.
Screenings having good bonding properties will also be required for the base course.
The automobile traffic first brushes aside all of the screenings and smaller particles of rock, exposing the larger stones.
Where special colors or tints are wanted they can be secured by using for sand and aggregate screenings from stones of the required color.
The second coat should consist of a mixture of clean sand and screenings, free from earthy admixtures, previously heated and dried, and asphalt, in the proportion of 1 of asphalt to 3 or 4 of sand or screenings by volume.
The concrete used in manufacturing these pipes was composed of American Portland cement, limestone screenings and crushed limestone that has passed through a ¾-in.
Generally a rich mixture of cement and sand or fine stone screenings will be used for the surface and will be backed with the ordinary concrete mixture.
The concrete was mixed in the proportions of one part cement to three and one-half parts each of screenings and crushed stone.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "screenings" in a variety of sentences. We hope that you will now be able to make sentences using this word.
