CONCRETE PAVEMENT METHOD

PROBLEM TO BE SOLVED: To provide a technique to reduce glare due to light reflection on a road surface, which occurs more often on concrete pavement than asphalt pavement and dazzles a driver.SOLUTION: As cement for concrete, a cement made from cement clinker, which has 22% or more of a total quanti...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SABAYASHI TAKASHI, KATO HIROYOSHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE FIXED CONSTRUCTIONS LIME, MAGNESIA MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a technique to reduce glare due to light reflection on a road surface, which occurs more often on concrete pavement than asphalt pavement and dazzles a driver.SOLUTION: As cement for concrete, a cement made from cement clinker, which has 22% or more of a total quantity of CA and CAF calculated by the Bogue equation, 60% or more of CS amount, and 0.8 to 1.3 of iron modulus (I.M.), is used. The cement has lower whiteness than conventional cement and can provide glare reducing effect.SELECTED DRAWING: None 【課題】コンクリート舗装では、アスファルト舗装に比べて路面の光反射により運転手がまぶしさを感じて目が眩むことがあり、このまぶしさを低減する技術が求められていた。【解決手段】コンクリートの用のセメントとして、ボーグ式により算出されるＣ３ＡおよびＣ４ＡＦの合計量が２２％以上、Ｃ３Ｓ量が６０％以上、鉄率（Ｉ．Ｍ．）が０．８〜１．３のセメントクリンカーを原料としたセメントを用いる。従来のセメントよりも白色度が低く、眩しさの低減効果が得られる。【選択図】なし