Waterproof impermeable concrete with self-repairing function and preparation method of waterproof impermeable concrete

Abstract

The invention discloses waterproof impermeable concrete with a self-repairing function and a preparation method of the waterproof impermeable concrete. The preparation method comprises the following steps: S1, preparing water-soluble polyrotaxane, namely A, preparing modified cyclodextrin; and B, synthesizing the water-soluble polyrotaxane; S2, preparing a repairing material, namely A, preparing bioremediation microspheres; B, preparing supplementing and repairing capsules; and C, synthesizing the repairing material; S4, preparing modified adhesive resin; and S5, synthesizing concrete slurry.According to the invention, a filling material growth skeleton is firstly formed in a crack, and then a filling material is generated in situ on the growth skeleton, so that the filling material in the crack can be effectively fixed, and the problem that the mechanical property recovery degree of the concrete material is poor and the filling material is easy to fall off due to insufficient compatibility between the newly generated filling material and the concrete in the traditional self-repairing concrete is avoided; The waterproof impermeable concrete has the advantages of good filling effect on concrete material cracks, high mechanical property recovery degree, good compatibility between the filling material and the concrete material, difficult loss, greenness, environmental protection,no pollution and high practicability.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a waterproof and anti-seepage concrete with self-repairing function and a preparation method thereof. Background technique [0002] Concrete is an artificial stone made of cementitious materials, aggregates, water, admixtures, and admixtures in a certain proportion. It has high compressive strength and good durability. It is one of the most widely used engineering materials in the world today. 1. However, concrete is brittle and is prone to cracks under ambient temperature or load. If these cracks are not repaired in time, it is easy to make concrete cracks deepen, and moisture and other harmful substances in the air will enter into the Erosion is caused inside the concrete, reducing the mechanical properties of the concrete material, and in severe cases, it will cause the wall to collapse, posing a threat to personal safety and a risk of economic loss. [0003] At present, the...

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Problems solved by technology

[0002] Concrete is an artificial stone made of cementitious materials, aggregates, water, admixtures, and admixtures in a certain proportion. It has high compressive strength and good durability. It is one of the most widely used engineering materials in the world today. 1. However, concrete is brittle and is prone to cracks under ambient temperature or load. If these cracks are not repaired in time, it is easy to make concrete cracks deepen, and moisture and other harmful substances in the air will enter into the Erosion is caused inside the concrete, which reduces the mechanical properties of the concrete material. In severe cases, it will cause the wall to collapse, causing personal safety threats and economic loss risks.

[0003] At present, there are two main repair methods for concrete materials: manual repair and automatic repair. The traditional manual repair method has a better repair effect, but this method can only repair the cracks visible to the naked eye, and it is difficult to detect and repair the internal damage of the concrete in time. At the same time, manpower repair has no way to cracks in some special structures and cracks in dangerous environments, which has certain limitations; in order to make up for the limitations of manpower repair technology, people have developed an automatic repair technology for concrete on this basis; The pre-embedded shape memory alloy method in the automatic repair technology mainly uses the pre-embedded memory alloy metal in the concrete. When the concrete cracks, the memory alloy is deformed by energizing and heating to realize the self-repair of the concrete. The repair effect of this method is better. Good, but the energy consumption is high, the cost is high, and there are certain limitations in marketing; the bionic self-healing technology mainly embeds the repair material in microspheres, when cracks occur in the concrete, the microspheres rupture, and the repair material flows out Fill the cracks to achieve the self-healing effect of concrete; although this method can achieve self-healing of concrete to a certain extent, the repair material has poor compatibility with concrete, and it is easy to be lost under the wind or rain, and the repair effect is poor. Difference;

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