A self-repairing material and concrete with the self-repairing material and its preparation

A self-repairing material, concrete technology, applied in the field of building materials, can solve the problems of poor stability of concrete matrix, poor controllability, and insignificant recovery of mechanical properties, so as to improve long-term effectiveness and controllability, improve mechanical properties, and dissolve The effect of speed increase

Active Publication Date: 2017-12-26
山西耀辉生态环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the controllability of this invention is poor, repeated repairs cannot be realized, and the stability of the concrete matrix is ​​poor when repairs occur, the long-term effectiveness of minerals is weak, and the recovery of mechanical properties is not significant

Method used

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  • A self-repairing material and concrete with the self-repairing material and its preparation
  • A self-repairing material and concrete with the self-repairing material and its preparation
  • A self-repairing material and concrete with the self-repairing material and its preparation

Examples

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Embodiment 1

[0042] A self-dissolving hybrid mineral self-repairing material, the self-repairing material is composed of uniformly mixed mineral component microspheres, and the mineral component microspheres are composed of mineral components and a carrier protective film coated with mineral components , The self-healing material contains the following mineral components in parts by weight: 20 parts of silicon-based minerals, 10 parts of silicate minerals, 25 parts of expanded minerals, 5 parts of crystalline minerals, and 5 parts of calcium ion source minerals. Silicon-based minerals are compounded by silica fume and fly ash. Among the silicon-based minerals, the content of silicon oxide is 65wt%, the content of aluminum oxide is 10wt%, the content of calcium oxide is 18wt%, and the silicate mineral is sodium Bentonite-based bentonite has a layered structure, and its layers contain exchangeable cations, which have ion exchange capacity; the expanded mineral is composed of calcium aluminosi...

Embodiment 2

[0046] A self-dissolving hybrid mineral self-repairing material, the self-repairing material is composed of uniformly mixed mineral component microspheres, and the mineral component microspheres are composed of mineral components and a carrier protective film coated with mineral components , The self-healing material contains the following mineral components in parts by weight: 55 parts of silicon-based minerals, 30 parts of silicate minerals, 50 parts of expanded minerals, 30 parts of crystalline minerals, and 10 parts of calcium ion source minerals. Silicon-based minerals are compounded by silica fume and fly ash. In silicon-based minerals, the content of silicon oxide is 62wt%, the content of aluminum oxide is 12wt%, the content of calcium oxide is 15wt%, and the silicate mineral is calcium Bentonite-based bentonite has a layered structure, and its layers contain exchangeable cations, which have ion exchange capacity; the expanded mineral is composed of calcium aluminosilica...

Embodiment 3

[0050] A self-dissolving hybrid mineral self-repairing material, the self-repairing material is composed of uniformly mixed mineral component microspheres, and the mineral component microspheres are composed of mineral components and a carrier protective film coated with mineral components , The self-healing material contains the following mineral components in parts by weight: 40 parts of silicon-based minerals, 16 parts of silicate minerals, 30 parts of expanded minerals, 7 parts of crystalline minerals, and 7 parts of calcium ion source minerals. Silicon-based minerals are compounded by silica fume and fly ash. In silicon-based minerals, the content of silicon oxide is 65wt%, the content of aluminum oxide is 10wt%, and the content of calcium oxide is 18wt%. Desoiled, in a layered structure, the layers contain exchangeable cations, which have ion exchange capacity; the expanded mineral is composed of calcium aluminosilicate, alumina and calcium sulfate, and the chemical compo...

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Abstract

The invention relates to a self-repair material, concrete with the self-repair material and preparation thereof. The self-repair material is composed of uniformly mixed mineral constituent microspheres, wherein the mineral constituent microspheres are composed of mineral constituents and a carrier protective film coated on the mineral constituents. The self-repair material comprises the following mineral constituents in parts by weight: 20-55 parts of silyl mineral, 10-30 parts of silicate mineral, 25-50 parts of expansion mineral, 5-30 parts of crystallizing mineral and 5-10 parts of calcium ion source mineral. The concrete is formed by mixing and pouring a cementing material, aggregate, autolysis hybrid mineral microspheres and water. In the concrete, the addition amount of the hybrid mineral is 8-17 wt% of the cementing material. The preparation method of the concrete comprises the following steps: putting the hybrid minerals into a carrier protective film material solution, adding the autolysis hybrid mineral microspheres into the water, uniformly stirring and dispersing, sequentially adding the cementing material and aggregate, stirring uniformly, carrying out casting molding, demolding, and curing to obtain the concrete. Compared with the prior art, the concrete has the advantages of high controllability, favorable autolysis property, excellent repair property and the like.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a self-dissolving mixed mineral self-repairing material, concrete with the self-repairing material and its preparation. Background technique [0002] The design life of the urban rail transit tunnel structure is 100 years. The rock and soil conditions in which it is located are complex, the surrounding environment is sensitive, the train running density is extremely high, and the service conditions are harsh. Or cannot be replaced, and will induce underground engineering disasters. Cracks in cement-based materials are the root cause of premature structural failure. The self-healing material of cement-based materials provides a new method for the repair of micro-cracks in the concrete matrix and effectively delays potential damage. A self-healing material will eliminate the high cost of effective monitoring and external repair, and avoid artificial Problems such as th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/28C04B24/26
CPCC04B40/0042C04B24/285C04B22/0006C04B22/08C04B22/0093C04B22/06C04B22/143C04B24/06C04B22/064C04B24/283C04B22/10C04B24/163
Inventor 蒋正武钱辰袁政成
Owner 山西耀辉生态环保科技有限公司
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