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Wiki source code of Special components

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9 A layer consists of special components when more than half of its volume consists of special material. That material can be either natural or anthropogenic in nature. A layer consisting of special material is described less extensively than a layer that consists of soil or rock. Below the categories of special components and their descriptions can be found.
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13 = Unbroken concrete =
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15 Antropogenic material: concrete that is not classified as debris, for example, a concrete slab.
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17 = Geotextile =
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19 Antropogenic material: textiles and films used in ground improvement usually made of plastic.
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21 = Used wood =
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23 Antropogenic material: wood or woody material that has been used. Examples include rice mats, foundation piles, shoring, shipwrecks.
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25 = Charcoal =
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27 Antropogenic material: charred remains of wood due to combustion, usually broken pieces.
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29 = Garbage =
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31 Antropogenic material: unspecified household waste.
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33 = Human made chalk =
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35 Antropogenic material: lime-based human made material such as slaked lime or lime identifiable as an admixture.
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37 = Filler material with plastics =
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39 Antropogenic material: filler material with a low specific weight consisting mainly of plastics and similar plastics, with expanded polystyrene as an example.
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41 = Filler material with stones =
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43 Antropogenic material: filler material with a low specific weight consisting of man-made stony material.
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45 Examples include bims, expanded clay pellets, flugsand foam concrete and foam glass.
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47 = Woody plant remnants =
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49 Natural material: the woody, undigested remains of plants, such as stems, branches and woody roots.
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51 = Not woody plant remnants =
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53 Natural material: the non-woody, undigested remains of plants, such as rootlets, cane stems and leaves.
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55 = Debris =
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57 Antropogenic material: construction and demolition waste, often a mixture of stony materials made or worked by man.
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59 = Mixture of soil =
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61 Antropogenic material: a mixture of the soil on site with a material such as cement or water glass. water glass itself is also included here.
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63 = Stones =
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65 Antropogenic material: stones of natural material that have been used as ballast or dump rock or are the by-product of mining operations.
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67 = Combustion residues =
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69 Antropogenic material: mineral combustion residues with a diameter ranging from less than 63 µm to greater than 2 mm.
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71 = Fine combustion residues =
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73 Antropogenic material: mineral combustion residues with a diameter similar to that of silt and lutum (less than 63 µm).
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75 = Medium coarse combustion residues =
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77 Antropogenic material: mineral combustion residues with a diameter similar to that of sand (0.063 to 2 mm).
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79 = Coarse combustion residues =
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81 Antropogenic material: mineral combustion residues with a diameter greater than 2 mm.
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83 = Road surfacing material =
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85 Antropogenic material: material used for paving of roads and yards. Examples include asphalt, concrete pavers, crushed clinker stones and tiles.
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87 = Weathered boulders =
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89 Natural material: a boulder so weathered that the material is completely pulverized and can be pierced.
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91 = References =
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93 * BRO-Catalogus Geologisch booronderzoek versie 0.99 – 25 maart 2020
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100 **Contents**
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102 {{toc/}}
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