PAVEMENT BODY

To provide a pavement body whose vertical displacement amount is low at the time of impact and shock absorptivity is excellent.SOLUTION: A pavement body includes a base layer, a durable layer arranged on the base layer, and a surface finishing layer arranged on the durable layer. The base layer comp...

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Bibliographische Detailangaben
Hauptverfasser:	SHODA KENICHI, KAKO HIDEKI, DORO MUTSUKO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE FIXED CONSTRUCTIONS MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	To provide a pavement body whose vertical displacement amount is low at the time of impact and shock absorptivity is excellent.SOLUTION: A pavement body includes a base layer, a durable layer arranged on the base layer, and a surface finishing layer arranged on the durable layer. The base layer comprises a polyurethane composition having a hardness of 48 or more in a Type A durometer measured in accordance with JIS K 6253-3: 2012 and expanded polystyrene (here, the polyurethane composition is a composition of components constituting the base layer excluding foam, the composition containing at least polyurethane).SELECTED DRAWING: None 【課題】衝撃時の垂直変位量が低く、衝撃吸収性にも優れる舗装体を提供する。【解決手段】ベース層と、ベース層上に配置された耐久層と、耐久層上に配置された表面仕上げ層とを備える舗装体であって、前記ベース層が、ＪＩＳＫ６２５３－３：２０１２に準拠して測定されるタイプＡデュロメータの硬さが４８以上であるポリウレタン組成物と、発泡ポリスチレンとを含むことを特徴とする舗装体である（ここで、ポリウレタン組成物とは、ベース層を構成する成分のうち発泡体を除いた成分の組成物であり、少なくともポリウレタンを含む組成物である）。【選択図】なし