Waterproof material capable of continuously repairing concrete micro-crack as well as preparation process and construction method thereof

Abstract

The invention relates to a waterproof material capable of continuously repairing concrete micro-crack as well as a preparation process and a construction method thereof. The waterproof material comprises the following raw materials by weight percent: 50 to 70 percent of gelled component, 5 to 15 percent of active component wrapped by modified cyclodextrin, 15 to 30 percent of ultrafine quartz powder, 1 to 10 percent of flexibilizer and 1 to 2 percent of delayed-coagulation water reducing agent, wherein in the active component wrapped by the cyclodextrin, the active component is arranged inside a nano cavity of the modified cyclodextrin. Due to the adoption of the continuously-repaired concrete micro-crack waterproof material, the problem that the later concrete micro-crack of the water material cannot be repaired or the repairing effect is poor can be solved, and the concrete micro-crack can be continuously repaired.

Description

technical field [0001] The invention relates to a waterproof coating, in particular to a waterproof material for continuously repairing concrete micro-cracks, a preparation process and a construction method thereof. Background technique [0002] Concrete used in construction projects is a porous substance. Due to thermal expansion and contraction, uneven settlement, and external dynamic loads, microcracks will occur on the concrete surface. Capillary pores and microcracks are the root causes of concrete leakage. [0003] In order to improve the impermeability of concrete, a cement-based permeable crystalline waterproof material has been developed on the market, and a series of new brands with independent intellectual property rights have been formed. In 2004, Jiang Zhe applied for the invention patent of "cement-based osmotic crystalline waterproof material and its production process and construction method". The cement-based osmotic crystalline waterproof material involved ...

AI Technical Summary

Problems solved by technology

In 2007, Xu Xiaoqiu and others from Tianjin Yaoxin Technology Development Co., Ltd. declared "an inorganic powder permeable crystalline waterproof coating". Composed of polymer toughening agent, when it is mixed with water and painted on the concrete surface, the active chemical substances in the paint will penetrate into the concrete under the action of concentration gradient, and promote the hydration of unhydrated cement in the concrete to form insoluble The dendritic crystals can block and close capillary channels, repair surface micro-cracks, thereby improving the impermeability of concrete. The waterproof coating can be used in various anti-seepage, waterproof, moisture-proof, and plugging projects, but the activity of the waterproof coating Chemical substances work once, and as time goes on, the repair and anti-seepage effect will become worse and worse

[0004] To sum up, as long as this type of product is in contact with water, the active substances in it will all participate in the crystallization reaction at one time, which means that as time goes by, no active ingredients will continue to play a role in the later stage. As the concrete continues to deform, New microcracks cannot be further repaired