Concrete crack repairing construction technology suitable for high and cold regions

Abstract

The invention provides a concrete crack repairing construction technology suitable for high and cold regions. Concrete crack repairing adhesive is heated through a water bath, and then an existing common region concrete crack repairing method is used for repairing the crack on a concrete component; then, thermal-insulation materials are used for wrapping the repaired concrete component in a full-closed mode; next, the thermal-insulation materials are dismantled, and then concrete crack repairing of the high and cold regions is completed. According to the construction technology, the repairing adhesive is heated through the water bath, mixing and stirring of the repairing materials are facilitated, the flowability of the materials is improved, construction is convenient, construction efficiency is improved, the materials are prevented from being rapidly solidified at low temperature, normal solidification is achieved, and the materials can complete solidification and strength improvement well in a highland low-temperature environment. The thermal-insulation measure is adopted, and needed temperature conditions are provided for the repairing materials to guarantee the repairing effect; needed equipment and tools are simple and easy to purchase, the price is low, and implementation is easy.

Description

technical field [0001] The invention belongs to the technical field of concrete crack repair, and relates to a construction technique for repairing concrete cracks in alpine regions, which can be widely used in the repair of concrete component cracks in reinforced concrete structures in the Qinghai-Tibet Plateau region, and can also be applied to other alpine and severe cold regions. Concrete crack repair works in the area. Background technique [0002] The Qinghai-Tibet Plateau is a high-altitude, high-cold climate zone. Its basic characteristics are: low temperature, thin air, dryness and little rain, high cold and hypoxia, high atmospheric transparency, and extremely strong solar radiation. The average surface temperature of the Qinghai-Tibet Plateau is lower than that of regions at the same latitude. 10℃~14℃. In most parts of the Qinghai-Tibet Plateau, the annual average temperature is below 0°C, and in the permafrost region, the annual average temperature is below -2°C...

AI Technical Summary

Problems solved by technology

[0003] The concrete crack repair technology currently applied in the plateau environment is basically a repair process in general areas. There is no concrete crack repair technology specifically for the plateau area. Due to the restriction of the harsh environmental conditions of the plateau, its repair effect is affected to a certain extent.

According to a large number of on-site investigations, the concrete components that have been repaired with cracks have phenomena such as falling off, peeling, and cracking of the repairing materials, and their engineering effects have been reduced or even completely failed.

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