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Cement-based capillary crystalline waterproof material

A osmotic crystalline waterproof and cement-based technology, applied in the field of building materials, can solve the problems of poor compressive and flexural properties, impermeability and other problems

Pending Publication Date: 2021-05-14
XUZHOU HECHENG BUILDING MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the compressive and flexural properties of cement-based penetrating waterproofing agents currently available on the market are still poor, and may not achieve good impermeability

Method used

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  • Cement-based capillary crystalline waterproof material
  • Cement-based capillary crystalline waterproof material
  • Cement-based capillary crystalline waterproof material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: The performance of the waterproof material of the present invention is shown in Table 1.

[0027] Table 1: Properties of waterproof materials

[0028] serial number Material properties illustrate 1 Withstand strong water pressure for a long time The test proves that the maximum water pressure can reach 12.3Mpa. 2 penetration depth The penetration depth of the chemical reaction reaches 30cm. 3 service life The service life is synchronized with the concrete. 4 self-healing ability When the crack width is less than or equal to 0.4mm, it can heal itself. 5 Good ventilation It can block water but not block air, and does not affect the breathing of concrete. 6 High temperature resistance, oxidation resistance, carbonization resistance It can work normally at -32℃~-130℃. 7 Corrosion resistance, freeze-thaw resistance When used, it will not be damaged when the pH is between 3 and 11; it can resist...

Embodiment 2

[0030] Embodiment 2: The present invention can be used as a waterproof repair paint. In this embodiment, the waterproof material of the present invention is used to smear and repair the cracks in the sewage pool.

[0031] Wherein the waterproof material of the present invention The active chemical substance in the waterproof material of the present invention has stronger permeability, can use water as the carrier to infiltrate and diffuse deeply into the internal pores of cement concrete, and chemically react with calcium ions in the concrete, Generate water-insoluble calcium silicate hydrate (dendritic crystals), the crystals are filled with capillary pores and integrated with the concrete, blocking the capillary channels inside the concrete, thereby making the concrete dense, preventing water penetration, and has good anti-penetration and self-repairing functions .

[0032] figure 1 For the concrete that has not been processed by the present invention, the surface layer of ...

Embodiment 3

[0035] Embodiment 3: The present invention can be used as repairing material to handle the crack of concrete

[0036] The waterproof material of the present invention adopts different construction methods for different cracks.

[0037](1) Treatment of concrete cracks less than 0.4mm wide

[0038] For cracks smaller than 0.4mm, when there is water flow in the crack, plug the leak first, then clean the surface of the crack, and directly apply two layers of the waterproof material of the present invention, wherein the waterproof material and water are in a volume ratio of 5:2 Dubbed as paint. After the coating is in a semi-dry state, continue curing for 72 hours. In hot or dry weather, spray water several times to strengthen maintenance and prevent premature drying of the coating. Within 48 hours after construction, avoid sun exposure, rain, frost, sewage and low temperature below 4°C. It is better to cover with wet straw bags for open-air construction.

[0039] (2) Treatment ...

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Abstract

The invention discloses a cement-based capillary crystalline waterproof material. The active chemical substances in the cement-based capillary crystalline waterproof material have relatively strong permeability, can be deeply permeated and diffused into internal pores of cement concrete by taking water as a carrier, and chemically react with calcium ions in the concrete to generate water-insoluble silicon-calcium hydrates (branch and tendril-shaped crystals). The crystals are filled with capillary tube pores, the crystals and the concrete are integrated, capillary channels in the concrete are blocked, and therefore the concrete is compact, water leakage is prevented, and the waterproof and anti-seepage functions are achieved. The waterproof material disclosed by the invention has the characteristics and properties of multiple anti-permeability and self-repairing, and has extremely high compression resistance and bending resistance. A waterproof layer prepared from the waterproof material can form a complete system with the surface of concrete, the interface bonding force is high, separation is avoided, and permanent waterproofness can be achieved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a cement-based permeable crystalline waterproof material. Background technique [0002] At present, due to the improper selection of waterproof materials on the surface of buildings in a humid environment, water seepage often occurs on the surface of the building, resulting in corrosion of steel bars inside the building, peeling of the concrete pavement, and other problems, which seriously affect the durability of the building and the normal use of the building. life. [0003] In traditional construction projects, it is generally used to lay waterproof membranes on the facing or back surface of the ordinary concrete surface to isolate the water source. However, this construction process requires special treatment of the joints of the waterproof layer, such as the use of step-reinforced construction joints. Seaming method, the process is more complicated. In order to ...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B111/27C04B111/20C04B111/22C04B111/28C04B111/72
CPCC04B28/04C04B2111/27C04B2111/72C04B2111/29C04B2111/20C04B2111/22C04B2111/28C04B2111/00267C04B2111/00508C04B14/06C04B18/08C04B18/146C04B24/2623C04B22/143C04B16/0633C04B24/383C04B14/304C04B14/062C04B2103/302C04B2103/0051C04B22/16C04B24/123C04B12/04C04B2103/10
Inventor 李翔
Owner XUZHOU HECHENG BUILDING MATERIAL TECH
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