HYDRAULIC COMPOSITION

PROBLEM TO BE SOLVED: To obtain a high function and high strength or high toughness hydraulic compsn. having surface characteristics such as antifouling property, high hardness and a specular surface state by using at least a hydraulic cement, water and a polycarbodiimide resin. SOLUTION: The hydrau...

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Bibliographische Detailangaben
Hauptverfasser:	OISHI FUJIO, MORIMOTO KIYOTAKE, AMANO SATOSHI, NUKUI MITSUO, OGAWA YOSHIHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain a high function and high strength or high toughness hydraulic compsn. having surface characteristics such as antifouling property, high hardness and a specular surface state by using at least a hydraulic cement, water and a polycarbodiimide resin. SOLUTION: The hydraulic compsn. contains at least a hydraulic cement such as Portland cement, magnesia cement, alumina cement, mixed cement or natural cement, water and a polycarbodiimide resin synthesized by the decarboxylation condensation of an org. diisocyanate in the presence of a catalyst. The average polymn. degree of the resin is an integer of >=1. The cliisocyanate is, e.g. 2,4-tolylene diisocyanate. Phenyl isocyanate is, e.g. used as a monoisocyanate for controlling the mol.wt. of polycarbodiimide by blocking its terminals. The amt. of the resin is 0.01-30 pts.wt. based on 100 pts.wt. hydraulic cement per 1 m hydraulic compsn.