Title:
爆裂防止超高強度プレキャストコンクリート及びその製造方法
Document Type and Number:
Japanese Patent JP5872165
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a super strength precast concrete that has at least 150 N/mm2 of a compressive strength, and can prevent explosion, and a method of manufacturing the same.SOLUTION: A hardened concrete in which a fresh concrete with which synthetic resin fiber is mixed is performed with placing and demolding, is performed with high temperature history curing, then is cured by at least the temperature in which the mixed plastic fiber melts even if the concrete temperature is low in a drying furnace, the melted synthetic resin is made to be absorbed into microvoids of the concrete in the curing, thereby at least a portion of an occupancy space of the synthetic resin is changed into a cavity of a cement hardened body to manufacture a super strength precast concrete. The super strength precast concrete has a structure that has a cavity in which at least a portion of the synthetic resin fiber mixed into an inside of the concrete is melted to be absorbed into microvoids of the hardened cement body to control explosion.
Inventors:
Shintaro Michikoshi
Shigeaki Baba
Shigehiro Sakamoto
Hiroshi Jinnai
Shusuke Kuroiwa
Korenaga Takeyoshi
Yamamoto Kajo
Shigeaki Baba
Shigehiro Sakamoto
Hiroshi Jinnai
Shusuke Kuroiwa
Korenaga Takeyoshi
Yamamoto Kajo
Application Number:
JP2011011200A
Publication Date:
March 01, 2016
Filing Date:
January 21, 2011
Export Citation:
Assignee:
Taisei Corporation
International Classes:
C04B28/04; C04B14/06; C04B14/48; C04B16/06; C04B18/08; C04B18/14; C04B40/02
Domestic Patent References:
| JP2009167054A | ||||
| JP2005320200A | ||||
| JP2006016900A | ||||
| JP2003306366A | ||||
| JP2003112954A | ||||
| JP6321606A | ||||
| JP2003171161A | ||||
| JP2001132935A |
Other References:
三井健郎、外4名,設計基準強度150~200N/mm2超高強度繊維補強コンクリートの開発と実建物への適用,日本建築学会技術報告書,日本,日本建築学会,2010年 2月19日,Vol. 16 No. 32,p. 21-26
Attorney, Agent or Firm:
Zentaro Hasebe