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Wiki source code of Gravel

Last modified by Roelof Zwaan on 2021/09/30 15:18
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9 Gravel is a granular sedimentary rock. The grains need to have a diameter of more than 2 mm and less than 63 mm. De grains of this rock are coarser than those of [[sand>>doc:Environmental Surveys.Rock types.Sedimenten.Sand.WebHome]] and less coarse than those of [[pebbles>>doc:Environmental Surveys.Rock types.Sedimenten.Pebbles.WebHome]] and [[boulders>>doc:Environmental Surveys.Rock types.Sedimenten.Boulders.WebHome]].
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13 = Sub-categories =
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15 Within the grainsize gravel there are some subcategories to characterize the types of gravel. Following table describes them.
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18 |=Type|=Grain size
19 |Coarse gravel|> 20 - ≤ 63 mm
20 |Medium coarse gravel|> 6.3 - ≤ 20 mm
21 |Fine gravel|> 2.0 - ≤ 6.3 mm
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23 = References =
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25 * NEN-EN-ISO 14688-1:2019
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32 = Gravel =
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34 [[image:Gravel.jpg||alt="image.jpg"]]
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37 |=(% scope="row" %)Image|[[Gravel>>url:https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.kurtz-bros.com%2Flandscape-supplies%2Fgravel%2F34-gravel%2F&psig=AOvVaw1HOO3ay1HNQQVkKDXved5L&ust=1607177561668000&source=images&cd=vfe&ved=0CAIQjRxqFwoTCMi-npLBtO0CFQAAAAAdAAAAABAb]]
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42 **Contents**
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44 {{toc/}}
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