CN211499891U - Maintenance system suitable for reinforced concrete structure with reinforcing bars - Google Patents
Maintenance system suitable for reinforced concrete structure with reinforcing bars Download PDFInfo
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- CN211499891U CN211499891U CN201922184210.1U CN201922184210U CN211499891U CN 211499891 U CN211499891 U CN 211499891U CN 201922184210 U CN201922184210 U CN 201922184210U CN 211499891 U CN211499891 U CN 211499891U
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Abstract
The utility model discloses a maintenance system suitable for violence muscle reinforced concrete structure, including old concrete base member, there is the incomplete district of concrete on the old concrete base member, the existence exposes the external reinforcing bar body in the incomplete district of concrete, the external cladding of reinforcing bar is provided with the rust inhibitor layer, incomplete district surface of concrete is provided with first waterborne capillary crystalline waterproof layer, the top of first waterborne capillary crystalline waterproof layer is provided with polymer mortar, polymer mortar fills in the incomplete district of concrete, polymer mortar's upper surface is provided with second waterborne capillary crystalline waterproof layer. In this way, the utility model discloses contained the reinforcing of old concrete base face and handled with the closely knit processing of newly mending the base face, guaranteed the durability stability of restoration effect.
Description
Technical Field
The utility model relates to a building material technical field especially relates to a maintenance system suitable for violence muscle reinforced concrete structure.
Background
Reinforced concrete is one of the most widely used building materials in the world, and is large enough for water conservancy dams, bridges and tunnels and small enough for houses and residences, and no reinforced concrete structure is required for weighing. The concrete is a porous building material, external aggressive substances such as water, acid rain, carbon dioxide and the like easily permeate into the interior through capillary holes and microcracks of the concrete and reach the steel bar layer in the interior, so that a passivation layer on the surface of the steel bar is damaged to corrode the steel bar, and once the steel bar is corroded and expands in volume, a concrete protective layer with two to three centimeters on the surface layer is cracked, so that concrete on the surface layer is peeled off, and the steel bar is exposed; the vicious circle can cause the whole reinforced concrete structure to lose the original bearing capacity. Therefore, for reinforced concrete structures, such as anti-collision walls on two sides of a viaduct, how to repair the corroded structures becomes an urgent problem to be solved in the infrastructure industry.
The conventional repair system is to clean up the base layer of the rib-breaking part and then fill and repair the damaged base surface by using special mortar such as epoxy mortar, and the repair system can fill and repair the base surface, but on one hand, the old base surface is eroded and loosened, and the bonding force between the old base surface and the new repair mortar is weak; on the other hand, external aggressive substances can still easily permeate into the internal reinforcing steel bars, so that secondary corrosion of the reinforcing steel bars is caused; therefore, the maintenance system has a short life, and the portion repaired in less than several years is pushed off and peeled off. Based on the above, in order to maintain a long-term repair effect, it is necessary to solve the problems of the adhesive strength of the base surface and the compactness of the new repair mortar at the same time, so that the external corrosive substances are not easy to permeate.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a maintenance system suitable for violence muscle reinforced concrete structure, has contained the reinforcing of old concrete base face and has handled and the closely knit processing of new repair base face, has guaranteed the durability stability of restoration effect.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a maintenance system suitable for violently muscle reinforced concrete structure, includes the old concrete base member, there is the incomplete district of concrete on the old concrete base member, there is the reinforcing bar body that exposes outside in the incomplete district of concrete, the external cladding of reinforcing bar is provided with the rust inhibitor layer, incomplete district surface of concrete is provided with first waterborne infiltration crystallization type waterproof layer, the top of first waterborne infiltration crystallization type waterproof layer is provided with polymer mortar, polymer mortar fills in the incomplete district of concrete, the upper surface of polymer mortar is provided with second waterborne infiltration crystallization type waterproof layer.
Preferably, the coverage area of the second water-based capillary crystalline waterproof layer is larger than the area of the concrete residual area.
Preferably, the first aqueous capillary crystalline waterproof layer comprises a third aqueous capillary crystalline waterproof layer and a fourth aqueous capillary crystalline waterproof layer, and the thickness of the third aqueous capillary crystalline waterproof layer is greater than that of the fourth aqueous capillary crystalline waterproof layer.
Preferably, the third and fourth aqueous capillary crystalline waterproof layers are coated in directions perpendicular to each other.
Preferably, the coating density of the rust inhibitor layer is 400-450 ml/m2。
The utility model has the advantages that: the utility model provides a maintenance system suitable for violently muscle reinforced concrete structure, has contained the strengthening treatment of old concrete base face and the closely knit processing of newly mending the base face, on the one hand lets the bond strength between new and old mortar higher, is difficult to peel off; on the other hand, the new base surface is more compact and stable: the rust inhibitor is arranged on the surface of the exposed steel bar in the system, so that the existing rust can be removed, and the subsequent secondary rust can be prevented; secondly, an aqueous capillary crystalline waterproofing agent is arranged between the old and new base layers, so that the material can penetrate into the old base layer, the hardness and the compactness are improved, and the bonding strength between the old and new base layers is increased; and then, the incomplete area is filled by high-strength polymer mortar, the surface of a new base layer is more compact by combining with the final water-based capillary crystalline waterproofing agent, and the channel for external aggressive substances to permeate into the interior is blocked, so that the durability and stability of a repair system are ensured, and the repair system is simple and practical and has good application prospect.
Drawings
Fig. 1 is a schematic view of a maintenance system suitable for a reinforced concrete structure, which is used for embodying the state of a concrete residual area;
FIG. 2 is an enlarged view of portion A of FIG. 1, illustrating the state of the reinforcement and the damaged area;
fig. 3 is a schematic view of a maintenance system suitable for a reinforced concrete structure with reinforcing bars of the present invention, for showing a state after the maintenance is completed;
FIG. 4 is an enlarged view of the portion B of FIG. 3, showing the polymer mortar and the waterproof layer structure thereon;
the parts in the drawings are numbered as follows:
1. an old concrete matrix; 2. a concrete residual area; 3. a steel bar body; 4. a rust inhibitor layer; 5. a polymer mortar; 6. a second aqueous capillary crystalline waterproof layer; 7. a third aqueous capillary crystalline waterproof layer; 8. and a fourth water-based capillary crystalline waterproof layer.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Example (b):
as shown in fig. 1 and fig. 2, a maintenance system suitable for a reinforced concrete structure with exposed reinforcement comprises an old concrete base body 1, a concrete incomplete area 2 is arranged on the old concrete base body 1, the concrete incomplete area 2 is caused by concrete peeling, a reinforcement body 3 exposed outside is arranged in the concrete incomplete area 2, and the reinforcement body 3 is exposed outside and is easy to cause corrosion so as to reduce the bearing capacity. After cleaning up the concrete matrix of the reinforcement bar part, coating a rust inhibitor layer 4 outside the reinforcement bar body 3, and brushing the exposed reinforcement bar surface with the rust inhibitor, on one hand, the existing rust can be removed, on the other hand, the phenomenon of secondary rust of the reinforcement bar can not occur in the later period is ensured, and the coating density of the rust inhibitor layer 4 is preferably selected to be 400-450 ml/m2。
As shown in fig. 1 and 2, a first water-based capillary crystalline waterproof layer is arranged on the surface of the concrete residual area 2, a water-based capillary crystalline waterproof agent is used as a deep layer capillary crystalline layer, active chemical substances in the water-based capillary crystalline waterproof layer can permeate into an old concrete base layer to heal cracks and capillary channels in the concrete structure, so that the old concrete base layer can realize self-waterproofing, and the durability of the whole structure is greatly improved.
As shown in fig. 1 and 2, in order to ensure a good penetration effect, the first aqueous capillary crystalline waterproof layer includes a third aqueous capillary crystalline waterproof layer 7 and a fourth aqueous capillary crystalline waterproof layer 8, the thickness of the third aqueous capillary crystalline waterproof layer 7 is greater than that of the fourth aqueous capillary crystalline waterproof layer 8, and the coating directions of the third aqueous capillary crystalline waterproof layer 7 and the fourth aqueous capillary crystalline waterproof layer 8 are perpendicular to each other, such a structure design that the third aqueous capillary crystalline waterproof layer and the fourth aqueous capillary crystalline waterproof layer are perpendicular to each other can further ensure that the upper part of the old concrete base layer is completely covered in the actual construction process, the strength hardness and the compactness of the old concrete are improved, and the bonding strength between the new concrete and the old concrete is improved.
As shown in fig. 3 and 4, a polymer mortar 5 is arranged above the first water-based capillary crystalline waterproof layer, the polymer mortar 5 is filled in the concrete incomplete area 2, i.e. the incomplete area is filled up by high-strength polymer mortar, then a second water-based capillary crystalline waterproof layer 6 is arranged on the upper surface of the polymer mortar 5, and the coverage area of the second water-based capillary crystalline waterproof layer 6 is larger than that of the concrete incomplete area 2, so that the new base layer surface is more compact, the channel through which external corrosive substances extend into the interior is blocked, the external corrosive substances are rejected, and the durability of the repair system is ensured.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (5)
1. The utility model provides a maintenance system suitable for violence muscle reinforced concrete structure which characterized in that: including old concrete base member (1), there are incomplete district (2) of concrete on old concrete base member (1), there are reinforcing bar body (3) that expose outside in incomplete district (2) of concrete, the outer cladding of reinforcing bar body (3) is provided with rust inhibitor layer (4), incomplete district (2) surface of concrete is provided with first waterborne infiltration crystallization type waterproof layer, the top of first waterborne infiltration crystallization type waterproof layer is provided with polymer mortar (5), polymer mortar (5) are filled in incomplete district (2) of concrete, the upper surface of polymer mortar (5) is provided with second waterborne infiltration crystallization type waterproof layer (6).
2. The repair system for a reinforced concrete structure according to claim 1, wherein: the coverage area of the second water-based capillary crystalline waterproof layer (6) is larger than the area of the concrete residual area (2).
3. The repair system for a reinforced concrete structure according to claim 1, wherein: the first water-based capillary crystalline waterproof layer comprises a third water-based capillary crystalline waterproof layer (7) and a fourth water-based capillary crystalline waterproof layer (8), and the thickness of the third water-based capillary crystalline waterproof layer (7) is larger than that of the fourth water-based capillary crystalline waterproof layer (8).
4. The repair system for a reinforced concrete structure according to claim 3, wherein: the coating directions of the third water-based capillary crystalline waterproof layer (7) and the fourth water-based capillary crystalline waterproof layer (8) are vertical to each other.
5. The repair system for a reinforced concrete structure according to claim 1, wherein: the coating density of the rust inhibitor layer (4) is 400-450 ml/m2。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922184210.1U CN211499891U (en) | 2019-12-09 | 2019-12-09 | Maintenance system suitable for reinforced concrete structure with reinforcing bars |
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| CN201922184210.1U CN211499891U (en) | 2019-12-09 | 2019-12-09 | Maintenance system suitable for reinforced concrete structure with reinforcing bars |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227233A (en) * | 2020-10-19 | 2021-01-15 | 北京立高立德工程技术有限公司 | Construction process for repairing bridge by using permeable waterproof anticorrosive spraying material |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227233A (en) * | 2020-10-19 | 2021-01-15 | 北京立高立德工程技术有限公司 | Construction process for repairing bridge by using permeable waterproof anticorrosive spraying material |
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