CN215857418U - Active powder concrete composite hard shoulder - Google Patents
Active powder concrete composite hard shoulder Download PDFInfo
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- CN215857418U CN215857418U CN202122103352.8U CN202122103352U CN215857418U CN 215857418 U CN215857418 U CN 215857418U CN 202122103352 U CN202122103352 U CN 202122103352U CN 215857418 U CN215857418 U CN 215857418U
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Abstract
The utility model relates to the technical field of road traffic isolation piers, in particular to an active powder concrete composite isolation pier. The technical scheme comprises the following steps: the concrete tank comprises an active powder concrete tank body and a recycled aggregate concrete filling body filled in the active powder concrete tank body, wherein the active powder concrete tank body is of an inverted V shape. The utility model has higher strength, wear resistance, durability and overall beauty, and works in cooperation with the recycled aggregate concrete filling body, so that the active powder concrete composite hard shoulder has very high appearance quality, shock resistance, wear resistance and excellent durability, and also consumes a large amount of solid construction waste; the problems of poor appearance, low strength, easy edge missing and corner dropping, poor durability and the like of the common concrete hard shoulder are solved.
Description
Technical Field
The utility model relates to the technical field of road traffic isolation piers, in particular to an active powder concrete composite isolation pier.
Background
The isolation pier is called as a water horse, mainly comprises a plurality of common concrete isolation piers, glass fiber reinforced plastic isolation piers, plastic isolation piers and the like, is one type of traffic facilities, has the functions of separating and protecting different functional areas, is widely applied to bidirectional road separation, motor way and non-motor way separation, important facility separation and resistance protection, toll stations, entrances and exits of elevated roads and the like, has the function of isolation, can keep traffic smoothness, and can prevent vehicles from rushing out of the roads to cause secondary damage when accidents happen. The glass fiber reinforced plastic hard shoulder is too light in weight and only can play a role in separation warning, and the common concrete hard shoulder has the advantages of lower strength, poor appearance quality, large volume and consumption of concrete, high consumption of non-renewable resources and short service life, and cannot meet the requirements of high-quality road engineering and the requirements of green environmental protection development; in view of the above drawbacks, we propose a reactive powder concrete composite hard shoulder.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an active powder concrete composite hard shoulder aiming at the problems in the background technology.
The technical scheme of the utility model is as follows: the utility model provides a reactive powder concrete composite hard shoulder, includes reactive powder concrete cell body and fills in the inside regeneration aggregate concrete obturator of reactive powder concrete cell body, the reactive powder concrete cell body is the type of falling V.
Preferably, the reactive powder concrete tank body is made of a R100 strength grade reactive powder concrete material.
Preferably, the recycled aggregate concrete filling body is made of recycled aggregate concrete with the strength grade of C15.
Preferably, the reactive powder concrete tank body is of an equal-wall-thickness structure, and the wall thickness of the reactive powder concrete tank body is 20mm-40 mm.
Preferably, the width of the top of the reactive powder concrete tank body is 160mm-240mm, the width of the bottom of the reactive powder concrete tank body is 450mm-650mm, the length of the reactive powder concrete tank body is 800mm-1200mm, and the height of the reactive powder concrete tank body is 600mm-1000 mm.
Compared with the prior art, the utility model has the following beneficial technical effects:
1. the active powder concrete groove has higher strength, wear resistance, durability and overall beautiful appearance, and works in cooperation with the recycled aggregate concrete filling body, so that the active powder concrete composite isolation pier has very high appearance quality, shock resistance, wear resistance and excellent durability, and a large amount of solid construction waste is absorbed; the problems of poor appearance, low strength, easy edge missing and corner dropping, poor durability and the like of the common concrete hard shoulder are solved;
2. the active powder concrete has excellent mechanical property, wear resistance and durability, can play good roles of impact resistance, wear resistance, corrosion resistance and the like when being used as an outer layer material of the road isolation pier, can improve the overall mechanical property and strength of a structure after the recycled aggregate common concrete inner layer is filled, increases the weight of the isolation pier, ensures the blocking effect, and reduces the manufacturing cost of a member and is more environment-friendly compared with the isolation pier which is made of the active powder concrete single material.
3. The recycled aggregate concrete filling body is tightly attached to the inner layer of the active powder concrete groove, no gap exists between the recycled aggregate concrete filling body and the active powder concrete groove, and an integral composite structure is formed to jointly resist the external force.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
fig. 2 is a front cross-sectional view of the present invention.
Reference numerals: 1. a reactive powder concrete tank; 2. recycled aggregate concrete filling body.
Detailed Description
The technical solution of the present invention is further explained with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 1-2, the reactive powder concrete composite hard shoulder provided by the utility model comprises a reactive powder concrete tank body 1 and a recycled aggregate concrete filler 2 filled in the reactive powder concrete tank body 1, wherein the reactive powder concrete tank body 1 is of an inverted V shape, the reactive powder concrete tank body 1 is made of a R100 strength grade reactive powder concrete material, the recycled aggregate concrete filler 2 is preferably made of C15 strength grade recycled aggregate concrete, and an open end of the reactive powder concrete tank body 1 faces the ground when in use.
The preparation method comprises the following steps: the die for manufacturing the inverted V-shaped groove which meets the size specification has enough rigidity and surface smoothness. And after the mold is qualified, pouring the mixed R100 active powder concrete into the mold, filling the mold and uniformly distributing, vibrating the mixture by adopting a vibrating rod and a vibrating table to compact, removing the redundant active powder concrete and finishing. And covering a plastic film on the surface after the vibration is finished, placing the plastic film in a curing area for curing, and removing the mold when the strength of the active powder concrete reaches 40 MPa. And (4) after the mould is removed, placing the mould into a steam curing chamber, curing for 48 hours at a constant temperature of 70 ℃, and taking the mould out of the curing chamber after the temperature is reduced to be less than 20 ℃ of the temperature difference with the environment. And installing side molds at two ends of the inverted V-shaped reactive powder concrete tank, pouring C15 recycled aggregate common concrete, placing the concrete in a curing area for curing, removing the molds when the strength of the common concrete reaches 70% of the designed strength, and placing the concrete in the curing area for watering and curing for 28 days. The compressive strength of the common concrete test block manufactured under the same conditions is 16.7MPa through detection, and the compressive strength of the active powder concrete outer layer test block and the common concrete inner layer test block manufactured under the same conditions is 110.5MPa, the flexural strength is 13.6MPa, and the elastic modulus is 45.7 GPa; therefore, the composite isolation pier provided by the utility model has excellent mechanical property
Example two
As shown in fig. 2, the present invention provides a reactive powder concrete composite hard shoulder, in this embodiment: the width of the top of the reactive powder concrete tank body 1 is 160mm-240mm, the width of the bottom of the reactive powder concrete tank body 1 is 450mm-650mm, the length of the reactive powder concrete tank body 1 is 800mm-1200mm, and the height of the reactive powder concrete tank body 1 is 600mm-1000 mm.
The above embodiments are merely some preferred embodiments of the present invention, and those skilled in the art can make various alternative modifications and combinations of the above embodiments based on the technical solution of the present invention and the related teaching of the above embodiments.
Claims (5)
1. The reactive powder concrete composite hard shoulder is characterized by comprising a reactive powder concrete groove body (1) and a recycled aggregate concrete filling body (2) filled in the reactive powder concrete groove body (1), wherein the reactive powder concrete groove body (1) is of an inverted V shape.
2. The reactive powder concrete composite hard shoulder as claimed in claim 1, characterized in that the reactive powder concrete trough body (1) is made of R100 strength grade reactive powder concrete material.
3. The reactive powder concrete composite hard shoulder of claim 1, characterized in that, the recycled aggregate concrete filling body (2) is made of recycled aggregate concrete of C15 strength grade.
4. The reactive powder concrete composite hard shoulder as claimed in claim 1 or 2, characterized in that the reactive powder concrete trough body (1) is of an equal wall thickness structure, and the wall thickness is 20mm-40 mm.
5. The reactive powder concrete composite hard shoulder as claimed in claim 1 or 2, characterized in that the width of the top of the reactive powder concrete tank body (1) is 160mm-240mm, the width of the bottom of the reactive powder concrete tank body (1) is 450mm-650mm, the length of the reactive powder concrete tank body (1) is 800mm-1200mm, and the height of the reactive powder concrete tank body (1) is 600mm-1000 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122103352.8U CN215857418U (en) | 2021-09-02 | 2021-09-02 | Active powder concrete composite hard shoulder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122103352.8U CN215857418U (en) | 2021-09-02 | 2021-09-02 | Active powder concrete composite hard shoulder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215857418U true CN215857418U (en) | 2022-02-18 |
Family
ID=80246413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122103352.8U Active CN215857418U (en) | 2021-09-02 | 2021-09-02 | Active powder concrete composite hard shoulder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215857418U (en) |
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2021
- 2021-09-02 CN CN202122103352.8U patent/CN215857418U/en active Active
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