ENVIRONMENTAL LOAD REDUCING MATERIAL, METHOD OF DEVELOPING SOLITARY ISLAND, CORAL GROWING BED, AND METHOD OF GROWING CORAL

• Main Authors: KAWAGUCHI MASATO, MURATA HIROKAZU, ASADA MOTOYUKI, ENDO HIROTO
• Format: Patent
• Language: English; Japanese
• Published: 30.07.2020
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; ARTIFICIAL STONE; CARE OF BIRDS, FISHES, INSECTS; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; DISPOSAL OF SOLID WASTE; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; LIME, MAGNESIA; METALLURGY; NEW BREEDS OF ANIMALS; PERFORMING OPERATIONS; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; RECLAMATION OF CONTAMINED SOIL SOIL; REFRACTORIES; SLAG; TRANSPORTING; TRAPPING; TREATMENT OF NATURAL STONE

To provide an environmental load reducing material capable of reducing an environmental load, a method of developing a solitary island, a coral growing bed, and a method of growing coral.SOLUTION: The environmental load reducing material for use in construction work on a solitary island, comprises a material comprising a combustion byproduct as a main component thereof. The combustion byproduct is coal ash of an optimum water content of from 19 to 40%. The coal ash is one which has been aged at the optimum water content for a period of three months. The maximum stress of the coal ash alone is 0.01 to 0.3 N/mm2 and that of a mixture of the coal ash and cement externally added thereto in the amount of 3 mass% is 0.3 to 1.5 N/mm2, at an age of 7 days.SELECTED DRAWING: None 【課題】環境負荷を低減することのできる環境負荷低減資材、離島開発方法、サンゴ生育基盤およびサンゴ生育方法を提供する。【解決手段】離島における工事に使用される環境負荷低減型の資材であって、燃焼副産物を主成分とする材料からなる。燃焼副産物は最適含水比が１９％〜４０％の石炭灰であり、この石炭灰は、最適含水比でのエージング期間が３カ月のものであり、材齢７日での最大応力は、石炭灰単体で０．０１〜０．３Ｎ／ｍｍ２、石炭灰単体にセメントを外割で３質量％添加したもので０．３〜１．５Ｎ／ｍｍ２であってもよい。【選択図】なし