CN219060614U

CN219060614U - Rectangular shape anti-corrosion concrete cushion

Info

Publication number: CN219060614U
Application number: CN202222547236.XU
Authority: CN
Inventors: 徐培林
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-05-23
Anticipated expiration: 2032-09-26

Abstract

The utility model provides a strip-shaped anti-corrosion concrete cushion block, which comprises a strip-shaped concrete cushion block main body formed by casting at one time, wherein the bottom surface of the concrete cushion block main body is a straight surface, the bottom surface of the concrete cushion block main body is attached to a steel bar, the top surface of the concrete cushion block main body is a wavy arc-shaped curved surface, the peak positions of the arc-shaped curved surfaces are positioned on the same horizontal plane, the top surface of the concrete cushion block main body is in contact with a template, a through hole is formed in the side surface, close to the bottom surface, of the concrete cushion block main body, a binding belt for binding the concrete cushion block main body on the steel bar is penetrated in the through hole, and a protective layer is covered on the outer surface of the concrete cushion block main body. The utility model solves the problems that the existing concrete cushion block is insufficient in strength and insufficient in seawater corrosion resistance.

Description

Rectangular shape anti-corrosion concrete cushion

Technical Field

The utility model relates to the field of concrete, in particular to an elongated corrosion-resistant concrete cushion block.

Background

The concrete cushion block, called a reinforcement protection layer cushion block, is placed between a reinforcement and a template in a brick-concrete structure and a frame structure, fixes the position of the reinforcement, is used for preventing the reinforcement from being exposed and corroded, and is a common method for solving reinforcement fixation, because the concrete cushion block has a plurality of advantages compared with the common plastic cushion block in the prior art, and gradually replaces the plastic cushion block.

The existing concrete cushion block has the following defects: the existing concrete cushion block is poor in strength, so that the concrete cushion block is easy to damage when being stressed by the reinforcing steel bars for a long time, the service life of the concrete cushion block is shortened, and meanwhile, the corrosion resistance of the concrete cushion block is poor, so that the concrete cushion block is easy to corrode and damage when being used for a long time, and the service life of the concrete cushion block is shortened.

The reinforced concrete structure has high bearing capacity and is widely applied to coastal engineering construction due to the combination of the advantages of high compressive strength of concrete, high tensile strength of reinforcing steel bars and good bond wrapping of the reinforcing steel bars and the concrete. However, chloride ions in the seawater can enter the concrete through the micro-pores of the concrete and react with alkaline substances such as calcium hydroxide in the concrete, so that the PH value in the concrete is gradually reduced to below 9, and the passivation film on the surface of the steel bar in the concrete is gradually destroyed and the steel bar is corroded. The steel bar is expanded in volume after being rusted, so that the concrete protective layer with lower tensile strength is cracked, peeled off and damaged, the bond between the steel bar and the concrete is damaged, the stressed cross section of the steel bar is reduced, the bearing capacity and durability of the reinforced concrete structure are reduced, and even the reinforced concrete structure is damaged.

In order to improve the capability of the reinforced concrete structure of the coastal engineering for resisting the invasion of chloride ions, prevent the reinforced concrete structure from being damaged too early due to seawater corrosion, improve the durability of the reinforced concrete structure and prolong the service life of the coastal engineering, a novel concrete cushion block which can resist corrosion and has longer service life is needed, and the problems can be solved.

Disclosure of Invention

The utility model provides a strip-shaped anti-corrosion concrete cushion block, which solves the problems that the existing concrete cushion block is insufficient in strength and insufficient in seawater corrosion resistance through technical improvement on the existing concrete cushion block structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an anti corrosion concrete pad of rectangular shape, includes the long bar-shaped concrete pad main part of disposable pouring shaping, concrete pad main part bottom surface is the straight face, concrete pad main part bottom surface sets up with the reinforcing bar laminating, concrete pad main part top surface is corrugated arc curved surface, arc curved surface crest position is on same horizontal plane, concrete pad main part top surface and template conflict set up, the through-hole has been seted up on the side that the concrete pad main part is close to the bottom surface, wear to be equipped with in the through-hole to be used for binding up the tie-up area of concrete pad main part on the reinforcing bar, concrete pad main part surface cover is provided with the protective layer.

Preferably, the through holes are arranged at the left end and the right end of the side surface of the concrete cushion block main body.

Preferably, the protective layer comprises a waterproof layer and an anti-corrosion layer, the waterproof layer is arranged above the outer surface of the concrete cushion body, and the anti-corrosion layer is arranged above the waterproof layer.

Preferably, the waterproof layer is a high-molecular waterproof paint layer, and the thickness of the waterproof layer is 0.5-3mm.

Preferably, the corrosion-resistant layer is an epoxy resin protective layer, and the thickness of the epoxy resin protective layer is 0.5-3mm.

Preferably, the concrete cushion block body is made of C30 high-strength concrete.

The utility model has the beneficial effects that:

the utility model adopts the C30 high-strength concrete, can effectively improve the strength of the concrete cushion block, prevent the concrete cushion block from being damaged, prolong the service life of the concrete cushion block, and simultaneously, the waterproof layer and the anti-corrosion layer are arranged on the outer surface of the concrete cushion block, so that the waterproof and the anti-corrosion performances of the concrete cushion block are improved, the concrete cushion block can be corroded by seawater in a mode, and the service life of the concrete cushion block is prolonged.

The bottom surface of the utility model is a straight surface, and the traditional cushion block can be attached to the outer surfaces of different steel bars, and is provided with the steel bar grooves, and can be attached and bound only to transverse or radial steel bars, and can not be arranged on a steel bar net in a crossing manner, so that the waste of resources is caused.

The top surface of the concrete cushion block is provided with the wavy arc-shaped curved surface, and when the concrete cushion block is installed at the template, the wave crest of the arc-shaped curved surface is abutted against the template, so that the exposed area of the concrete cushion block is reduced, and the concrete cushion block is more attractive and tidy in integrity after concrete is poured.

Drawings

FIG. 1 is a block diagram of the present utility model;

FIG. 2 is a schematic diagram of a hierarchy of the present utility model;

FIG. 3 is a schematic view of the utility model attached to a rebar grid;

reference numerals illustrate: the concrete cushion block comprises a concrete cushion block body 1, an arc-shaped curved surface 11, a through hole 12, a template 2, reinforcing steel bars 3, binding belts 4, a protective layer 5, a waterproof layer 51 and an anti-corrosion layer 52.

Detailed Description

The details of the present utility model are described below in conjunction with the accompanying drawings and examples.

Referring to fig. 1-3, the utility model provides a strip-shaped anti-corrosion concrete cushion block, which comprises a strip-shaped concrete cushion block main body 1 formed by casting at one time, wherein the bottom surface of the concrete cushion block main body 1 is a flat surface, the bottom surface of the concrete cushion block main body 1 is attached to a steel bar 3, the top surface of the concrete cushion block main body 1 is a wavy arc-shaped curved surface 11, the peak positions of the arc-shaped curved surfaces 11 are positioned on the same horizontal plane, the top surface of the concrete cushion block main body 1 is in abutting arrangement with a template 2, a through hole 12 is formed in the side surface of the concrete cushion block main body 1, which is close to the bottom surface, a binding belt 4 for binding the concrete cushion block main body 1 on the steel bar 3 is penetrated in the through hole 12, and a protective layer 5 is covered on the outer surface of the concrete cushion block main body 1.

Further, in order to facilitate binding and fixing the concrete pad, the through holes 12 are disposed at left and right end positions of the side surface of the concrete pad body 1.

Further, in order to protect the concrete structure, the protective layer 5 includes a waterproof layer 51 and an anti-corrosion layer 52, the waterproof layer 51 is disposed over the outer surface of the concrete pad body 1, and the anti-corrosion layer 52 is disposed over the waterproof layer 51.

Further, the waterproof layer 51 is a polymer waterproof paint layer, and the thickness of the waterproof layer 51 is 1mm. The high polymer waterproof coating layer adopts a high polymer waterproof material as a waterproof coating layer, and is used for waterproof engineering to replace a high polymer material of petroleum asphalt felt which is easy to leak and has short service life. The waterproof plastic has the characteristics of elastoplasticity or high elasticity, aging resistance, light weight, low pollution, excellent waterproof performance, simple construction, cold operation and strong adaptability to expansion and contraction or cracking of a base layer. The waterproof material can be used as a high-molecular waterproof coiled material, a high-molecular waterproof coating, a caulking sealing material and the like.

The waterproof polymer coating is one waterproof polymer emulsion film with several polymer materials as main film forming matter, thixotropic agent, anti-sagging agent, anti-precipitating agent, thickener, leveling agent, antiager and other additive and catalyst, and through special technological process, the waterproof polymer emulsion film has excellent high elasticity and excellent waterproof performance. The product is nontoxic, odorless, safe and environment-friendly. The coating film has strong water resistance, alkali resistance and ultraviolet resistance, and has higher elongation at break, tensile strength and automatic repair function. Wherein AST synthesized polymer waterproof paint is represented. The varieties include polyurethane waterproof paint, acrylic ester waterproof paint, epoxy resin waterproof paint, organic silicon waterproof paint and the like.

Further, the anti-corrosion layer 52 is an epoxy protective layer 5, and the thickness of the epoxy protective layer 5 is 3mm. The epoxy resin as anticorrosive material has the features of compactness, water resistance, high leakage resistance, high strength, etc. and has the advantages of high adhesion, simple construction, etc. and moderate cost. The epoxy resin commonly used in the anti-corrosion engineering can be used independently, and can be used in combination with unsaturated polyester resin, vinyl ester resin, phenolic resin, furan resin and other resins to form a composite structure so as to fully exert the respective advantages, reduce the cost, improve the product quality and facilitate the construction. Can also be modified with other resins to form modified resins, and the modification method comprises a physical method and a chemical method. Epoxy coal tar belongs to a typical epoxy resin physical modification product, and the performance of the epoxy coal tar is between that of the epoxy resin and the coal tar. The secondary resin in the physical modified resin generally accounts for 30-50% of the total amount; the properties of the products of the chemically modified resins have changed substantially, with vinyl ester resins being essentially the most typical chemically modified epoxy resins. Sometimes, 2 or more than two resin materials with better comprehensive performance are used, and according to the respective characteristics, different structures of unified parts at different parts of engineering can be sequentially constructed to generate obvious effects which are difficult to achieve by a single material.

Further, the concrete cushion block main body 1 is made of C30 high-strength concrete. The high-strength concrete is used as a new building material, and is widely applied to high-rise building structures, large-span bridge structures and certain special structures by virtue of the advantages of high compressive strength, strong deformation resistance, high density and low porosity. The high-strength concrete has the greatest characteristic of high compressive strength, which is 4-6 times of common strength concrete, so that the cross section of the member can be reduced, and the high-strength concrete is most suitable for high-rise buildings. Tests show that the high-strength concrete frame column has better anti-seismic performance under the conditions of a certain axial pressure ratio and proper hoop matching rate. And the cross section of the column is reduced, the dead weight is reduced, short columns are avoided, the structure is also beneficial to earthquake resistance, and the economic benefit is improved. The high-strength concrete material provides favorable conditions for the prestress technology, and high-strength steel materials and artificial control stress can be adopted, so that the bending rigidity and the cracking resistance of the flexural member are greatly improved. So that the prestressed high-strength concrete structure is increasingly adopted worldwide and is applied to large-span houses and bridges. In addition, the high-strength concrete with high density can be used for building (building) structures bearing impact and explosion loads, such as atomic energy reactor foundations and the like. By utilizing the characteristics of strong impermeability and strong corrosion resistance of the high-strength concrete, industrial water tanks with high impermeability and high corrosion resistance requirements are built.

The embodiment adopts C30 high strength concrete, can effectually improve the intensity of concrete cushion, prevents that concrete cushion from appearing damaging, has prolonged the life of concrete cushion, and concrete cushion surface is provided with waterproof layer 51 and corrosion resistant layer 52 simultaneously, has improved the waterproof and the corrosion resistance of concrete cushion, can mode concrete cushion by the sea water corrosion, has prolonged the life of concrete cushion.

The bottom surface of the embodiment is a straight surface, the traditional cushion blocks can be attached to the outer surfaces of different steel bars 3, the traditional cushion blocks are provided with steel bar grooves, the traditional cushion blocks can only be attached to and bound on transverse or radial steel bars 3, the traditional cushion blocks cannot be arranged on a steel bar 3 net in a crossing mode, and accordingly resource waste is caused.

The top surface of this embodiment is provided with wavy arc curved surface 11, and when installing in template 2 departments, the crest of arc curved surface 11 contradicts with template 2, reduces concrete cushion exposed area for the wholeness is more pleasing to the eye after the concreting, and is neat.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of the parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machines, the parts and the equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that the details are not described.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or can be connected through an intermediate medium, and can be communication between two elements or interaction relationship between two elements. The specific meaning of the above terms in the present utility model will be understood by those skilled in the art in specific cases.

Claims

1. The utility model provides an anti corrosion concrete pad of rectangular shape, its characterized in that, including once only pour fashioned rectangular concrete pad main part, concrete pad main part bottom surface is the straight face, concrete pad main part bottom surface and reinforcing bar laminating set up, concrete pad main part top surface is wavy curved surface, curved surface crest position is in on same horizontal plane, concrete pad main part top surface and template conflict set up, the through-hole has been seted up on the side that the concrete pad main part is close to the bottom surface, wear to be equipped with in the through-hole to be used for binding up the binding belt of concrete pad main part on the reinforcing bar, concrete pad main part surface cover is provided with the protective layer.

2. The elongated corrosion-resistant concrete pad of claim 1, wherein said through holes are provided at left and right end positions of the side surface of the concrete pad body.

3. The elongated corrosion-resistant concrete pad of claim 1, wherein said protective layer comprises a waterproof layer disposed over the outer surface of the concrete pad body and a corrosion-resistant layer disposed over the waterproof layer.

4. A strip-shaped corrosion-resistant concrete pad according to claim 3, wherein the waterproof layer is a high polymer waterproof paint layer, and the thickness of the waterproof layer is 0.5-3mm.

5. A strip-shaped corrosion-resistant concrete pad according to claim 3, wherein the corrosion-resistant layer is an epoxy protective layer, and the thickness of the epoxy protective layer is 0.5-3mm.

6. The elongated corrosion resistant concrete pad of claim 1, wherein said concrete pad body is a C30 high strength concrete material.