When the bonding quality is not required, the carbon fiber fabric should be cut off along the edge of the empty drum. The size of 100mm is extended to the outer edge of the same carbon fiber material, and the same binder is used in the original.
Self inspection and acceptance criteria for CFRP strengthening are listed in the table below
| Item | Standard of qualification | Test method | Region |
| Stickup position of carbon fiber fabric | Compared with the design requirements, the centerline deviation is less than 10mm | Steel scale measurement | Total |
| Amount of carbon fiber fabric | More than design quantity | Calculate according to the measurement | Total |
Paste qualit | 1. single empty drum area < 1000mm2, filling glue repair; above 1000mm2, mending. 2. the ratio of hollowing area to total paste is less than 5%. | Hammer | Total |
Carbon fiber adhesive thickness | Carbonf fiber laminate: 2mm + 1.0mm | Steel scale measurement | Sampling inspection |
| Carbon fiber fabric: ＜2mm |
When the bonding quality is not required, the carbon fiber fabric should be cut off along the edge of the empty drum. The size of 100mm is extended to the outer edge of the same carbon fiber material, and the same binder is used in the original.
When the strength fails to meet the requirements, the carbon fiber composite material represented by the sample inspection shall be stripped and redone.
The self inspection method of CFRP strengthening is visual inspection or percussion. Inspection standard: the surface of the reinforcement should be strengthened without any glue, gaps, dry yarn, wrinkles, bubbles and sunken defects. Detection time: 3-5 days after completion, check the area with visual or metal mallet (small).
Defect handling of self inspection
Shortcoming | Treatment measures |
Lack of glue and ga | Applying more adhesive |
Crumpled (carbon fiber) | Grinding and adding subsidized carbon fiber |
Dry yarn | Dismantle and adding subsidized carbon fiber |
Sunken | Applying more adhesive |
Bubble | Length is more than 3mm, grinding and adding subsidized carbon fiber |
| Length is less than 3mm, dismantle and adding subsidized carbon fiber | |
| Iintensive style, grinding and adding subsidized carbon fiber | |
| Centralized, applying more adhesive |
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HM-20 est un tissu de fibre de carbone unidirectionnelle. Lorsque mis en place par superposition d’épaisseurs du tissu sur la résine d’imprégnation époxyde HM-180C3P, il forme un système de renforcement composite.
Lamelles en fibres de carbone est une lamelle de composite polymère extrudé par tirage et renforcé de fibres de carbone (CPFC), destiné au renforcement des structures de béton, de bois et de maçonnerie.
Renfort carbone par lamelle précontrainte, ce nouveau procédé permet de traiter des ouvrages, en béton armé ou précontraint, présentant une déformation trop importante ou un manque très important de rigidité.
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