A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Provided is a prescribed apparatus to start pressure-feeding concrete using a concrete transport tube without requiring preceding mortar. The invention is configured as a plug (10) to be inserted intoa concrete transport tube (6) prior to starting pressure-feeding concrete. When the plug is inserted into a concrete transport tube prior to starting pressure-feeding concrete, the plug (10) elastically deforms and adheres liquid-tight at a prescribed pressure to the inner circumferential face of the concrete transport tube (6). When concrete (22) starts to be pressure-fed with a concrete pump, the plug (10) is pushed by the front edge of the fed concrete (22) and advances by sliding in the concrete transport tube (6). Thus, the front edge of the concrete (22) is not exposed to the air, and aggregate (24) in the concrete (22) stays in the plug flow region. Blockages are prevented.
本发明的课题在于提供一种规定的器具，该规定的器具在混凝土输送管对混凝土的压送开始时，不需要前置砂浆。本发明被构造成插塞(10)，其在开始混凝土的压送之前，插入到混凝土输送管(6)中。如果在混凝土压送开始之前将插塞插入到混凝土输送管中，则插塞(10)弹性变形，以规定的压力，按照液体密封的方式紧贴于混凝土输送管(6)的内周面上。如果通过混凝土泵开始混凝土(22)的压送，则通过所压送的混凝土(22)的前端部挤压插塞(10)，使该插塞在混凝土输送管(6)的内部滑动地前进。由此，混凝土(22)的前端部不曝露于空中，混凝土(22)中的骨料(24)停留于插塞的流动区域中。防止被封闭。
Provided is a prescribed apparatus to start pressure-feeding concrete using a concrete transport tube without requiring preceding mortar. The invention is configured as a plug (10) to be inserted intoa concrete transport tube (6) prior to starting pressure-feeding concrete. When the plug is inserted into a concrete transport tube prior to starting pressure-feeding concrete, the plug (10) elastically deforms and adheres liquid-tight at a prescribed pressure to the inner circumferential face of the concrete transport tube (6). When concrete (22) starts to be pressure-fed with a concrete pump, the plug (10) is pushed by the front edge of the fed concrete (22) and advances by sliding in the concrete transport tube (6). Thus, the front edge of the concrete (22) is not exposed to the air, and aggregate (24) in the concrete (22) stays in the plug flow region. Blockages are prevented.
本发明的课题在于提供一种规定的器具，该规定的器具在混凝土输送管对混凝土的压送开始时，不需要前置砂浆。本发明被构造成插塞(10)，其在开始混凝土的压送之前，插入到混凝土输送管(6)中。如果在混凝土压送开始之前将插塞插入到混凝土输送管中，则插塞(10)弹性变形，以规定的压力，按照液体密封的方式紧贴于混凝土输送管(6)的内周面上。如果通过混凝土泵开始混凝土(22)的压送，则通过所压送的混凝土(22)的前端部挤压插塞(10)，使该插塞在混凝土输送管(6)的内部滑动地前进。由此，混凝土(22)的前端部不曝露于空中，混凝土(22)中的骨料(24)停留于插塞的流动区域中。防止被封闭。
PLUG FOR CONCRETE TRANSPORT TUBE
混凝土输送管用的插塞
DEGUCHI HIDEO (author)
2020-09-18
Patent
Electronic Resource
Chinese