The utility model relates to a concrete structure crack grouting device, which comprises an air compressor, a groute storing tube, high-pressure hoses and a grouting head. The utility model is characterized in that the utility model is composed of the air compressor, the slurry storing tube ...
The plate is so positioned on the surface of the structure that the injection enclosure overlies the crack. Air is evacuated through the outlet ports from the vacuum enclosures to cause the rigid plate to be sucked tightly against the surface of the structure and hardenable material in a semi...
existing stud at a high quality by providing a lead-in pipe, which is provided with plural opening parts with a space, in an inner space or an outer space of the existing stud, and pressure filling the concrete into the space from an inlet provided in the lower part of the lead-in ...
SEALED FILLING ELEMENT AND A METHOD FOR INTRODUCING INJECTABLE MEDIA INTO CRACKS OR CAVITIES IN CONCRETE The packer is inserted into at least one bore in concrete at the crack or cavity to be filled and is sealed with at least one deformable seal (31), which is pressed against a shoulder ...
34,35 established a single crack grouting model considering fluid-structure coupling, and carried out numerical simulation research on the multi-physical coupling mechanism. Xie et al.36 used COMSOL Multiphysics finite element analysis software to build a numerical model and solve the grouting part of...
The tension bars and concrete (10) are immediately joined in the shuttering form which has base (3) , side and end (2) surfaces. The tension bars, (5) before concreting, are inserted from above into the shuttering form through vertical, upward-opening slots (4) in the end surfaces. The...
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The concrete step producing process involves filling a mold (11) in which at least one can be laid, with concrete, compacting and turning out. There may be an underlay board (4) put on the mold before turning the step out by overturning the mold and lifting the mold off of the step....
A concrete block, especially for forming a shoulder in a paved surface, a pavement, etc., having a support surface which is shaped in the form of a ramp and a cross-sectional contour which is provided with an upper surface region, which is at least approximately horizontal, a middle surfac...
Each is a compendium of good practices for asphalt concrete crac... K. Smith,A. Romine,T. Wilson 被引量: 77发表: 1993年 Crack-filling clays and weathered cracks in the DPRI 1800 m core near the Nojima Fault, Japan: Evidence for deep surface-water circulation near an active f... ...