How to deal with the cracks in the box girder
If the structure cracks, while continuing to the direction of the development of the proposed use of epoxy resin modified cement mortar repair.If the surface layer of cement slurry is too thick, it is recommended to clean the surface, re repair.
Your cantilever cast-in-place box girder is not prestressed construction.Need to identify the type of crack, if it is hot up cracks or superficial expansion cracks, the depth of not more than 2mm, not to the vertical and horizontal direction of development is not related, you can not deal with.
Measurement of cracks can be watered with black ink, and then cut a section of cracks observed.The subsequent construction, the need to strengthen quality control, especially the control of masonry cracks in protective layer, the protective layer is too large or because most of the causes of cast-in-situ box cantilever especially should improve the understanding of crack, prestressed anchor head near the pipeline, after the proposal directly after chiseling epoxy resin mending.
