It has been rainy for a week. People who have been involved in reinforcing works in Nanjing may have such distress. How do we do if the planting hole has water? Is there any adhesive for underwater use? What kind of technical standards and regulations do underwater anchorage adhesive need to meet? We will answer these questions for you.
Underwater anchorage adhesive is a kind of structural adhesive. In "Technical Specifications for Safety Evaluation of Reinforcing Materials for Engineering Structures" GB 50728-2011, there are special provisions for the safety evaluation of underwater curing structures. The requirements of the specification: underwater anchorage adhesive test specimens are to prepare glue, mix glued and bond with wet surfaces (without floating water) in a 5°C environment. And the test pieces should be solidified and cured in still water until the specified time.
At the same time the underwater anchorage adhesive also has certain requirements for the standard values of steel-to-steel tensile shear strength: underwater curing, curing 7d, 5 °C test, the standard value of the steel-to-steel tensile shear strength should be greater than or equal to 10MPa; underwater curing, curing 7d specimens, after drying 3d, and then soaked in water for 30d maturity test, the standard value of its steel to steel tensile shear strength should be greater than or equal to 8MPa.
Nanjing Mankate underwater anchorage adhesive performs full-term performance testing in accordance with the specifications, and the performance indicators of the full-scale inspection should meet the specifications.
Mankate MT500 underwater anchorage adhesive adopts the epoxy resin from the south Asia Taiwan, which is non-toxic and odor-free. It has the advantages of shock resistance and shock resistance. The most important point is that it has the ability to withstand seawater with high strength and can be cured in water. At present, many large-scale underwater projects in China are using Mankate underwater anchorage adhesive.
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Editor: Nanjing Mankate
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