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A kind of anti-scouring hydraulic surface protection block and its preparation method

A face protection block and anti-scouring technology, which is applied in chemical instruments and methods, cement production, coastline protection, etc., can solve the problem of low benefit of anti-scouring and wear protection, failure to improve crack resistance, and insufficient bonding strength of concrete substrates Ideal and other problems, to achieve the effect of good adhesion performance, extended service life and simple construction method

Active Publication Date: 2021-03-19
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polymer face armor materials can improve the anti-abrasion performance of the face armor block, but they still have the disadvantages of not being able to improve the anti-crack performance, so that the benefit of the anti-abrasion anti-abrasion face protection is low, and the bond strength with the concrete substrate is not ideal.

Method used

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  • A kind of anti-scouring hydraulic surface protection block and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This embodiment provides an anti-scouring hydraulic face protection block, which includes a concrete block 1 and a geopolymer layer 2 covered on its surface, the geopolymer layer 2 and the concrete block 1 An adhesive is provided between them; the geopolymer layer 2 is the geopolymer in the form of a coating, which is bonded to the surface of the concrete block 1 through an adhesive. like figure 1 As shown, there is an adhesive interface 3 between the concrete block 2 and the geopolymer layer 1 .

[0038] The construction steps are:

[0039] In step a, the raw materials are mixed, and water is added to form a gelled material;

[0040] Step b, the configuration of the alkali excitation solution;

[0041] Step c, uniformly mixing the gelling material in step a and the alkali excitation solution in step b;

[0042] Step d, coating the adhesive on the surface of the concrete block;

[0043] Step e, coating the mixture obtained in step c on the surface of the concrete b...

Embodiment 2

[0053] The geopolymer selected in this embodiment comprises the following components by weight: 22 parts of slag powder, 35 parts of fly ash, 22 parts of desulfurized gypsum, 7 parts of liquid water glass, 8 parts of sodium hydroxide, 35 parts of fine sand, 25 parts of water. The selected adhesive is carbene interface agent.

[0054] The specific steps of preparing the abrasion-resistant hydraulic face armor block in this embodiment are the same as those in Embodiment 1. The hydraulic face protection block comprises a concrete block 1 and a geopolymer layer 2 covered on its surface, and an adhesive is provided between the geopolymer layer 2 and the concrete block 1 . Compared with the traditional concrete block for hydraulic face protection, the hydraulic face protection block prepared in this embodiment has better anti-abrasion performance.

Embodiment 3

[0056] The geopolymer selected in this embodiment comprises the following components by weight: 20 parts of slag powder, 32 parts of fly ash, 25 parts of desulfurized gypsum, 8 parts of liquid water glass, 9 parts of sodium hydroxide, 38 parts of fine sand, 28 parts of water. The adhesive of choice is an acrylic adhesive.

[0057]The specific steps of preparing the abrasion-resistant hydraulic face armor block in this embodiment are the same as those in Embodiment 1. The hydraulic face protection block comprises a concrete block 1 and a geopolymer layer 2 covered on its surface, and an adhesive is provided between the geopolymer layer 2 and the concrete block 1 . Compared with the traditional concrete block for hydraulic face protection, the hydraulic face protection block prepared in this embodiment has better anti-abrasion performance.

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Abstract

The invention discloses an anti-impact and abrasion hydraulic surface protection block body and a preparation method thereof. The hydraulic surface protection block body comprises a concrete block body and a geopolymer layer covering the surface of the concrete block body, and an adhesive is arranged between the geopolymer layer and the concrete block body. The geopolymer layer is formed by bonding a geopolymer on the concrete block body of the hydraulic surface protection block body by an adhesive through a form of coating. According to the anti-impact and abrasion hydraulic surface protection block body, the anti-wear property of the surface protecting block body is good, and erosion of a water flow to the block body is effectively reduced; the coating is used for replacing a common concrete surface, so that strength of the surface layer of the surface protection block body can be enhanced, and the service life of the surface protection block body is prolonged; the coating material is prepared from a plurality of industrial wastes, so that cost for additionally arranging block protection layers is saved; and the preparation method is simple and is high in safety.

Description

technical field [0001] The invention relates to the field of hydraulic structures and preparation methods thereof, in particular to a scour-resistant hydraulic face protection block and a preparation method thereof. Background technique [0002] In the hydraulic structure, the face protection block is placed on the surface of the structure to resist waves, waves, and currents, and to protect the core stones of the embankment from being washed away and rolled down. Abrasion and scouring of the protective surface by high-speed water flow, sandy water flow, and moving water flow have always been a long-term concern in the construction of water conservancy and hydropower and have yet to be resolved. Ordinary concrete face protection block structure, because the surface is often subjected to abrasion, carbonization, chlorine salt erosion, etc., will produce durability diseases, and the protective effect on the embankment core structure will gradually weaken. [0003] At present,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B3/12C04B28/00B32B13/04B32B7/12B32B33/00B32B37/12C04B111/20
CPCB32B7/12B32B13/04B32B33/00B32B37/1284B32B2307/50B32B2307/554C04B28/006C04B2111/00508C04B2111/2038E02B3/12C04B18/141C04B18/08C04B22/145C04B12/04C04B22/062C04B14/06Y02P40/10
Inventor 冯兴国朱超张祎吉卢向雨徐逸文章乐远张菁张香英吴腾秦杰
Owner HOHAI UNIV
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