To provide a novel technique of concrete in which a mixing ratio of sewage sludge incineration ash mixed in concrete is raised, consumption of sewage sludge incineration ash having a very cheap price can be large, and even when a mixing ratio of sewage sludge incineration ash is raised, constant workability can be obtained, further usability when producing concrete can be remarkably improved.
A concrete comprises mixing a range of 5-50% of particle size control burned ash that is obtained by cracking and pulverizing a lump of burned ash that is generated when incineration disposal is performed on sludge obtained using a flocculant such as a polymer flocculant, to a particulate shape, and in which accumulation (%) of a particle diameter to 4 μm exceeds 50%, and accumulation (%) of a particle diameter to 11 μm exceeds 80% as a chemical admixture based on a cement content.
DEGUCHI TOSHIYUKI
HATTORI KOICHI
ISHII YOSHIAKI
IGAWA HIDEKI
SHIBATA TETSUYASU
YAMASHITA HIROKI
NOGUCHI MASAHIRO
NIPPON HUME CORP
HANEX CO LTD
NAKAGAWA HUME KAN KOGYO KK
| JP2001354465A | 2001-12-25 | |||
| JP2011116657A | 2011-06-16 | |||
| JPH11171628A | 1999-06-29 |
Yukihiko Maejima
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