CN211306754U

CN211306754U - Prestressed decorative concrete plank road plate

Info

Publication number: CN211306754U
Application number: CN201922325328.1U
Authority: CN
Inventors: 蔡林; 李良; 何成伟
Original assignee: Jianhua Building Materials Jingzhou Co ltd
Current assignee: Jianhua Building Materials Jingzhou Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-08-21
Anticipated expiration: 2029-12-20

Abstract

The utility model discloses a prestressed decorative concrete plank road board, which comprises a structure bottom layer and a decorative surface layer adhered on the structure bottom layer, wherein a layer of steel reinforcement framework net is respectively paved in the structure bottom layer and the decorative surface layer, the steel reinforcement framework net comprises main reinforcements, transverse reinforcements and longitudinal reinforcements, and the two layers of steel reinforcement framework nets are fixedly connected through a stool reinforcement; the utility model provides a prestressing force is decorated concrete gallery road plate has characteristics such as very strong impervious, bending resistance, high strength, high tenacity, acid rain resistant, the utility model also provides a preparation method of above-mentioned prestressing force is decorated concrete gallery road plate.

Description

Prestressed decorative concrete plank road plate

Technical Field

The utility model relates to a concrete foresees product technical field, especially relates to a concrete gallery road plate is decorated to prestressing force.

Background

In environmental governance, such as water area governance and tourist attractions, the construction of the plank road is often required, so that a special plank road plate needs to be produced.

The common precast concrete plank road slab of the same type has the following defects: 1. no concrete decorative surface layer; 2. non-skid, anti-fouling, anti-freezing and anti-seepage; 3. the steel bar tension prestress is not generated, the crack resistance of the plate surface is poor, and the bearing capacity is low; 4. the product is simple and the whole is not beautiful.

The same type of stone plank road slab shortcomings: 1. the product is not environment-friendly; 2. the product unit price is high, and the product is not suitable for large-area engineering application; 3. no pollution, freezing and seepage prevention; 4. the cracking resistance and the durability of the stone are poor, and the bearing capacity of a single block is low; 5. the field construction time period is long, and time and labor are wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at not enough among the above-mentioned background art, provide a concrete plank road board is decorated to prestressing force to it is poor to solve among the prior art plank road board crack resistance, the poor technical problem of durability.

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

the utility model provides a concrete plank road board is decorated to prestressing force, includes structure bottom and bonds the architectural surface on the structure bottom, and has all laid one deck framework of steel reinforcement net in structure bottom and the architectural surface, the framework of steel reinforcement net includes main muscle, horizontal muscle and indulges the muscle, and two-layer through stool muscle fixed connection between the framework of steel reinforcement net.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides a prestressed decorative concrete plank road board, it has characteristics such as very strong impervious, bending resistance, high strength, high tenacity, acid rain resistance structurally, compare with the plank road board of natural stone material, this plank road board can be prefabricated in the mill in batches, the quality cost is all controllable, and replace granite, marble and other natural stone materials, be fit for the regional use of different climates, along with our country to environmental protection, sustainable development's weight is increasing, strict restriction to the stone exploitation, the advantage that prestressed decorative concrete goods replace natural stone material will be more and more obvious, very big market promotion and using value have, produce huge economic benefits; meanwhile, the method has irreplaceable advantages during construction, and mainly comprises the following steps:

1. compared with a cast-in-place plate, the prestressed decorative concrete plank road plate reduces the usage amount of on-site formwork erecting, pouring and manual equipment during construction, and greatly shortens the construction period;

2. the pollution to the field environment caused by human factors is reduced, and the field construction environment is civilized and tidy;

3. the prestressed decorative concrete plank road plate is provided with a clear concrete interface, is corrosion-resistant, skid-resistant and impervious, is closer to the nature and has stronger durability;

4. compared with natural stone, the prestressed decorative concrete plank road is limited in size due to poor self anti-cracking performance, but the prestressed decorative concrete plank road can be set in size according to the needs of customers, and can be adjusted in size.

Drawings

FIG. 1 is a schematic structural view of a middle prestressed decorative concrete plank road in the production process of the utility model;

FIG. 2 is a schematic view of a single-layer reinforcing cage net structure of the present invention;

fig. 3 is the utility model discloses well two-layer steel reinforcement cage net connection structure sketch.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

As shown in fig. 1-3, as a preferred embodiment, the utility model provides a prestressed decorative concrete gallery road plate, including structure bottom 10 and bonding architectural surface 20 on structure bottom 10, and all laid one deck framework of steel reinforcement net 30 in structure bottom 10 and the architectural surface 20, framework of steel reinforcement net 30 includes main muscle 31, horizontal muscle 32 and indulges muscle 33, and two-layer through bench muscle 34 fixed connection between framework of steel reinforcement net 30, the interval between the two adjacent main muscle is 110mm in the same layer framework of steel reinforcement net, and the interval between the two adjacent horizontal muscle is 75 mm.

The main reinforcement in the decorative surface layer is a steel bar for prestressed concrete.

The preparation method of the prestressed decorative concrete plank road comprises the following steps:

s1, manufacturing a mould table, namely cleaning the mould table, paving floor leather at the bottom of the mould table, filling glass cement at a joint of the mould, and wiping off the glass cement exposed out of the outer surface;

s2 placing a steel reinforcement framework net: steel bars for prestressed concrete sequentially penetrate through the head end and the tail end of the die in sequence, a group of lifting lugs are symmetrically arranged, the steel bars for prestressed concrete are subjected to prestress tensioning according to the coefficient of 10% of the tensile strength of the steel bars, main reinforcements are locked after the prestress tensioning is finished, an upper steel reinforcement framework and a lower steel reinforcement framework are bound, and protective layer clips are placed at the bottoms of the steel reinforcement frameworks;

s3 pouring the decorative surface layer: mixing the decorative surface layer concrete according to the proportion, pouring the decorative surface layer concrete to two sides in the middle of the rear edge die table, manually flattening and beating the surface of the concrete material by using a spatula to remove air bubbles, flattening and smoothing the smooth decorative surface layer, and then paving a grid cloth;

s4: pouring the bottom layer of the structure: mixing the structural bottom layer concrete after the interval is 55-65 minutes, pouring on the mesh cloth, leveling and collecting light;

s5: demolding and corrosion prevention: the method comprises the following steps of (1) starting demoulding when the strength of concrete reaches 75% of the designed strength, cutting and polishing main ribs with exposed end faces after demoulding, smearing an anticorrosive material on the end faces of the main ribs, hoisting and fixing the main ribs on a mould turnover machine for turnover, cutting lifting rings for polishing, and smearing the anticorrosive material on the cross sections of the lifting rings;

s6 maintenance: putting the mixture into a water culture pond for maintenance, wherein the maintenance temperature is 20 +/-5 ℃, and the maintenance time is 7 d;

s7: surface chemical treatment: and after maintenance is finished, the upper surface of the decorative surface layer is brushed until a uniform rough surface of fine aggregate appears on the surface.

Preferably, the water chestnuts at two sides of the decorative surface layer are ground into 5mm chamfers after the plank road board is formed, and the concrete protective agent is coated on the bottom layer of the structure and two sides of the decorative surface layer. The concrete protective agent is coated once, and a good drying base surface is obtained, so that the water content is below 10% (no defect surface of the base layer is not subjected to the step). After the surface of the component is completely dried, the cement paste is used for repairing air holes on the side edges (the proportion of all repairing materials is that plugging king: white cement and expansion powder is 1:0.1:0.1), the plugging king: white cement and expansion powder is uniformly stirred and added with water to form slurry, a dust shovel is used for filling part of the air holes, after the repaired slurry is finally set, four side edges are polished by a sand paper polishing machine until the surface is smooth, and an angle grinder is used for polishing chamfers, wherein the chamfers are 5 mm. And cleaning dust and impurities on the surface of the component by using an air gun, if the surface is found to have color difference, pickling again, and then uniformly coating the bottom coat on the surface and the side surface by using a roller brush after the plate surface is dried. After 6 hours of bottom painting, brushing a middle painting on 4 side edges of the board surface by using a roller, adding water into the middle painting according to a ratio of 1:5, repeating the middle painting for many times until the color of the paint completely covers the natural color of the prestressed decorative concrete board, standing for 12 hours, then blowing up surface dust by using an air gun, starting to coat the top painting on the board surface and the side edges of the prestressed concrete decorative plank road, uniformly painting, allowing no accumulated liquid on the surface, painting the top painting once, having no color difference on the surface, and standing for 12 hours.

After the production is finished, carrying out bearing capacity test and inspection: and (3) carrying out a loading test on the middle position of the prestressed decorative concrete plank road plate according to 75% of the load weight of 1T, holding the load for 30min, recording, checking whether visible cracks appear on the prestressed decorative concrete plank road plate, continuously loading to 100% according to 5% of the load weight of 1T, standing for 24h, and not generating any crack.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a concrete plank road board is decorated to prestressing force, its characterized in that, includes structure bottom and bonds the architectural surface on the structure bottom, and has all laid one deck framework of steel reinforcement net in structure bottom and the architectural surface, the framework of steel reinforcement net includes main muscle, horizontal muscle and indulges the muscle, and two-layer through stool muscle fixed connection between the framework of steel reinforcement net.

2. The prestressed decorative concrete plank of claim 1, wherein: the main reinforcement in the decorative surface layer is a steel bar for prestressed concrete.

3. The prestressed decorative concrete plank of claim 2, wherein: the interval between two adjacent main muscle is 110mm in same layer framework mesh, and the interval between two adjacent horizontal muscle is 75 mm.