For direct screwing into concrete A thread forming screw for concrete, masonry, rock, or similar material. The size ratios of various portions of the screw are defined to reduce thread enga... S Hettich,U Hettich - US 被引量: 43发表: 1997年 Anterior plating and percutaneous iliosacral scre...
A screw is introduced into a drilled hole (6) in a solid but porous material (7), especially concrete, in a sealed manner by means of pushing a cartridge (17) into said drilled hole (6) and then screwing the thread-cutting screw (1) in. A sealing agent (19) that is contained in...
A self-driving, self-tapping screw for screwing into porous concrete has an outer diameter at least one and half times greater than the diameter of the root. The screw thread profile is asymmetrical about a plane perpendicular to the screw axis. The screw thread flank (7) facing the screw ...
The device for support of external building wall facing slabs incorporates an anchorage, with a vertical threaded bolt for screwing into a component anchor... B Nichtnennung 被引量: 0发表: 1978年 Endoprosthesis and dowel for anchorage in a material with bone-like strength The endoprosthesis compr...
not available for EP118021of corresponding document:A screw is introduced into a drilled hole (6) in a solid but porous material (7), especially concrete, in a sealed manner by means of pushing a cartridge (17) into said drilled hole (6) and then screwing the thread-cutting screw (1)...
not available for EP1180219of corresponding document: WO0073671 A screw is introduced into a drilled hole (6) in a solid but porous material (7), especially concrete, in a sealed manner by means of pushing a cartridge (17) into said drilled hole (6) and then screwing the thread-cutting ...
A self-driving, self-tapping screw for screwing into porous concrete has an outer diameter at least one and half times greater than the diameter of the root. The screw thread profile is asymmetrical about a plane perpendicular to the screw axis. The screw thread flank (7) facing the screw ...
Since the proposed system does no... K Susumu,K Takeshi - 《Journal of Advanced Concrete Technology》 被引量: 2发表: 2013年 加载更多研究点推荐 wall to diaphragm anchors self-screwing retrofit wall to diaphragm anchorage system diaphragm anchorage system self-screwing retrofit wall ...
SOLUTION: According to the channel repairing method, the panel 10 which is made of ultra-high strength fiber-reinforced concrete and has fixing bumps 11 formed on a rear surface thereof, is stuck to a channel bottom surface to secure a gap between the panel 10 and the bottom surface, and ...
capable of enhancing penetratability for a diameter-enlarged upper steel pipe by a pipe jacking blade provided in an outer wall face of the upper steel pipe or in an upper outer wall face of a lower steel pipe, capable of providing large supporting force, and reduced in a manufacturing cost...