MULTIFUNCTIONAL WATER RETAINING MATERIAL AND MULTIFUNCTIONAL WATER RETAINING PAVEMENT BODY USING THIS MATERIAL

PROBLEM TO BE SOLVED: To provide a multifunctional water retaining material and a multifunctioinal water retaining pavement body, having both humidity conditioning function and ion adsorption-exchange function, in addition to high water retentivity, for coping with multiple problems such as an improvement in an atmospheric environment of a city part, amenity and security of safety, though a conventional water retaining material and the pavement body using its material have only the single function such as water retentivity, since water retention cannot be maintained over a long time due to being low in the water retentivity. SOLUTION: This water retaining material is provided by mainly using porous and multifunctional powder and grain having many pores of a nano level, provided by performing heating dehydration processing on a potassium silicate hydrate generated by hydrothermally reacting a pozzolan substance and a calcium ion in advance. The multifunctional water retaining material and the multifunctional pavement body using this material having both high water retentivity by an extremely high water absorption coefficient, amenity by the autonomous humidity conditioning function, freezing restraint by the ion adsorption-exchange function and adsorptivity of an atmospheric pollutant, are provided by being carried on a pavement material of an opening grain size by adjusting an injection material by adding a cement-based inorganic hardening material and water to this water retaining material. COPYRIGHT: (C)2009,JPO&INPIT