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Shale for road building

Updated: 10/18/2022
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9y ago

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Shale in general is the most abundant of stratified rocks. One of the most popular forms of shale used for building roads is called Marcellus Shale. When this clay shale is nearly pure it is known as argillaceous. When it contains a lot of sand it is arenaceous. You will find that shale varies in color, reddish, very black, or grey. Shale is used mainly for top dressing on roads. To have a good road base slate is recommended.

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Q: Shale for road building
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Would shale be a good choice of building materiel in a wet climate?

When mixed as part of concrete (E.G for a building foundation or hard-standing), yes, shale is an excellent building material. Do NOT confuse concrete with cement or mortar. Mortar is useless and unworkable if you put shale in it! Boring holes into shale-concrete is labourious work, so if you intend to do that I suggest you make the mixture lighter on shale the closer to the surface you get. It is not very usefull by itself, and would not make a suitable foundation for any structure. As a decorative feature, shale is an easy and visually pleasing way of (for example) resurfacing a drive, pathway or patio, although if placed directly onto soft soil it will sink and become part of the topsoil relatively quickly. Above all, it is cheap and readily available.


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No, shale is not magnetic.


Is shale a chemical rock?

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What part of speech is shale?

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