CA2695333A1 - Aggregate repair method and product - Google Patents
Aggregate repair method and product Download PDFInfo
- Publication number
- CA2695333A1 CA2695333A1 CA 2695333 CA2695333A CA2695333A1 CA 2695333 A1 CA2695333 A1 CA 2695333A1 CA 2695333 CA2695333 CA 2695333 CA 2695333 A CA2695333 A CA 2695333A CA 2695333 A1 CA2695333 A1 CA 2695333A1
- Authority
- CA
- Canada
- Prior art keywords
- crack
- aggregate
- droplets
- sealant
- colour
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
- E01C23/0966—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for filling or priming, with or without working the surface of the filling or applying particulate material thereto, e.g. for filling the joints of stone-sett paving
- E01C23/0973—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for filling or priming, with or without working the surface of the filling or applying particulate material thereto, e.g. for filling the joints of stone-sett paving with liquid or semi-liquid materials, e.g. crack sealants
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
- E01C7/14—Concrete paving
- E01C7/147—Repairing concrete pavings, e.g. joining cracked road sections by dowels, applying a new concrete covering
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
A method for repairing cracks in exposed aggregate concrete surfaces, such as residential driveways. The crack is grinded to form a groove within which a base sealant is placed corresponding in colour to the concrete. An elongated spine coated with droplets is inserted into the base sealant, the colour of the spine corresponding to the colour of the sealant and the colour of the droplets corresponding to the colour of the aggregate. The base sealant and droplet coated spine could be sold separately or could be sold as a kit.
Description
TITLE OF THE INVENTION
AGGREGATE REPAIR METHOD AND PRODUCT
FIELD OF THE INVENTION
The present invention relates to a method for repairing cracks in exposed aggregate concrete surfaces, such as residential driveways, and a product for use in same.
BACKGROUND OF THE INVENTION
Exposed aggregate is a common building material. One common example of its use is as a driveway surface. While visually appealing and relatively strong and maintenance free, exposed aggregate can become cracked. These cracks both disturb the visual appeal of the exposed aggregate and are cause for concern for further water damage.
Water that runs into the crack, say from rain, melting snow, or a garden hose, can result in the erosion of interior crack surfaces, as well as undermining the support of the concrete substrate. When frozen, any water within the crack causes freezing damage, mainly expanding crack width. The forces of nature cause movement in these cracks, especially when concrete is exposed to warm days, followed by freezing nights.
Replacement of the entire cracked item (driveway, stairway, etc.) is overly costly, so patching solutions have been developed to repair the cracks and prevent additional water damage. A crack repair must have enough flexibility to handle the expansion and contraction caused by the prevailing weather conditions so that it will not re-crack.
A flexible sealant, bridging the crack, and handling this movement is one common repair method. However, while the repair has flexibility, its appearance has no camouflaging effect when installed in exposed aggregate. This is due to the aggregate's distinct surface.
Accordingly, it is an object of an embodiment of the present invention to provide a method for repairing a crack in an aggregate surface and camouflaging the repaired area.
It is a further object of an embodiment of the present invention to provide a camouflaging product for use in repairing a crack in an aggregate surface.
Other objects of the invention will be apparent from the description that follows.
SUMMARY OF THE INVENTION
The invention consists of a product for use in repairing a crack in an exposed aggregate surface comprising a base sealant and an elongated flexible member spotted with random droplets of sealant material to reproduce the look of the exposed aggregate surface and a method of using same for repairing the crack.
According to the preferred embodiment of the invention there is provided a kit for repairing a crack in an exposed aggregate concrete surface comprising a base sealant for filling the crack and an elongated flexible member corresponding in color to the color of said base sealant. The elongated flexible member being coated with droplets corresponding in size and color to aggregate in the exposed aggregate concrete surface.
In another embodiment of the invention, there is provided a method for repairing a crack in an exposed aggregate concrete surface comprising grinding a groove in the aggregate along the length of the crack and filling the groove with a camouflaged filler.
The camouflaged filler comprises a base sealant and an elongated member coated with droplets of sealant. The base sealant is injected into said groove and then a pre-selected length of elongated member is inserted into the base sealant leaving the droplets visible.
The foregoing was intended as a broad summary only and of only some of the aspects of the invention. It was not intended to define the limits or requirements of the invention. Other aspects of the invention will be appreciated by reference to the detailed description of the preferred embodiment and to the claims.
AGGREGATE REPAIR METHOD AND PRODUCT
FIELD OF THE INVENTION
The present invention relates to a method for repairing cracks in exposed aggregate concrete surfaces, such as residential driveways, and a product for use in same.
BACKGROUND OF THE INVENTION
Exposed aggregate is a common building material. One common example of its use is as a driveway surface. While visually appealing and relatively strong and maintenance free, exposed aggregate can become cracked. These cracks both disturb the visual appeal of the exposed aggregate and are cause for concern for further water damage.
Water that runs into the crack, say from rain, melting snow, or a garden hose, can result in the erosion of interior crack surfaces, as well as undermining the support of the concrete substrate. When frozen, any water within the crack causes freezing damage, mainly expanding crack width. The forces of nature cause movement in these cracks, especially when concrete is exposed to warm days, followed by freezing nights.
Replacement of the entire cracked item (driveway, stairway, etc.) is overly costly, so patching solutions have been developed to repair the cracks and prevent additional water damage. A crack repair must have enough flexibility to handle the expansion and contraction caused by the prevailing weather conditions so that it will not re-crack.
A flexible sealant, bridging the crack, and handling this movement is one common repair method. However, while the repair has flexibility, its appearance has no camouflaging effect when installed in exposed aggregate. This is due to the aggregate's distinct surface.
Accordingly, it is an object of an embodiment of the present invention to provide a method for repairing a crack in an aggregate surface and camouflaging the repaired area.
It is a further object of an embodiment of the present invention to provide a camouflaging product for use in repairing a crack in an aggregate surface.
Other objects of the invention will be apparent from the description that follows.
SUMMARY OF THE INVENTION
The invention consists of a product for use in repairing a crack in an exposed aggregate surface comprising a base sealant and an elongated flexible member spotted with random droplets of sealant material to reproduce the look of the exposed aggregate surface and a method of using same for repairing the crack.
According to the preferred embodiment of the invention there is provided a kit for repairing a crack in an exposed aggregate concrete surface comprising a base sealant for filling the crack and an elongated flexible member corresponding in color to the color of said base sealant. The elongated flexible member being coated with droplets corresponding in size and color to aggregate in the exposed aggregate concrete surface.
In another embodiment of the invention, there is provided a method for repairing a crack in an exposed aggregate concrete surface comprising grinding a groove in the aggregate along the length of the crack and filling the groove with a camouflaged filler.
The camouflaged filler comprises a base sealant and an elongated member coated with droplets of sealant. The base sealant is injected into said groove and then a pre-selected length of elongated member is inserted into the base sealant leaving the droplets visible.
The foregoing was intended as a broad summary only and of only some of the aspects of the invention. It was not intended to define the limits or requirements of the invention. Other aspects of the invention will be appreciated by reference to the detailed description of the preferred embodiment and to the claims.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other features of the invention will become more apparent from the following description in which reference is made to the appended drawings and wherein:
Fig. 1 is a perspective view of a section of aggregate having a crack;
Fig. 2 is a perspective view of the section of aggregate shown in Fig. 1, with the crack repaired;
Fig. 3 is perspective view of a portion of the repaired aggregate showing the various layers of repair material according to the preferred embodiment of the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Exposed aggregate is a mixture of concrete with a consistent aggregate size and colour. When the aggregate is poured in place, the upper surface layer, typically about 2 cm thick, is retarded from curing. Once the un-retarded concrete has cured, the retarded upper surface layer is removed by spraying it with water. This exposes the surface of the concrete slab, revealing the various aggregate set in place in the cured concrete, hence the term exposed aggregate.
A slab of exposed aggregate 10 is shown in Fig. 1 having a large crack 12 extending therethrough. In order to repair the crack 12, a grinder or the like, preferably with a diamond or carbide blade, is used to grind a groove 14 along the length of the crack, preferably with the crack centered along the base of the groove 14. Groove 14 works to smooth out potentially jagged switchbacks of the crack and to provide a uniform depression within which repair material can be placed as discussed in more detail below. Preferably, the groove 14 forms a depression no more than 3/8 of an inch deep to allow proper curing of the repair material. The width of the groove will depend on the displacement of the crack to be repaired.
As shown in Fig. 2, after the groove 14 has been grinded the length of the exposed surface of crack 12 it is filled according to the present invention to seal the crack with a camouflaged filler material 15. This will be described in more detail with reference to Fig. 3.
Camouflaged filler material 16 is preferably comprised of a flexible base sealant 18, and a flexible spine 20 having a plurality of randomly placed rubber droplets 22 affixed thereto. Spine 20 is preferably an elongated flexible member having branching elements 24 extending therefrom. Spine 20 is preferably formed by placing sealant material in a pre-shaped mold and allowing it to dry. It is also contemplated that the spine could be formed of a strip of material such as a string or the like that is coated with the sealant material. Preferably, the flexible member has branching elements providing a surface to which the rubber droplets 22 can be affixed. For example, a strip of carpet matting (the mat matrix used to hook rugs as in hobby type rug making) cut to provide the elongated member with branching elements has been found to work well, however it is contemplated that other materials would be suitable provided that they are flexible and capable of bonding with the rubber droplets 22.
Similarly, other shapes for the spine are contemplated, provided that it is elongated and sufficiently wide to provide a surface upon which droplets can be placed.
After the spine 20 has properly cured it is then coated along one side with droplets 22 of rubber sealant randomly distributed along its length. The colour of the droplets can be varied so as to blend with different aggregate colours. Preferably the sealant and droplets are made of a urethane caulking, which can be varied in colour and viscosity.
The length and width and colour of the spine 20 can be varied for different applications. Similarly, the colour, size and number of droplets can be varied to correspond to different aggregate types.
After grinding the groove 14, it is filled with a base sealant matching the colour of the concrete. A length of spine 20 the colour of the base sealant and with droplets 22 matching the colour of the aggregate is selected and cut to correspond to the length of the groove. The spine is then carefully inserted into the base sealant 18 leaving the droplets 24 exposed along the top surface. By matching the spine 20 to the base sealant 18, the spine 20 essentially becomes invisible when inserted into the base sealant 18 leaving the droplets 22 visible along the top.
The droplet coated spines could be sold as a unit and could come in a variety of colours and sizes. It is contemplated that the product of the invention could be sold as an aggregate repair kit that would include base sealant of a given colour and a length of spine the colour of the base sealant that is coated with droplets, the droplets being a different colour than the spine and base sealant. Each kit could include multiple variations of base sealant having different colours so as to enable proper matching to the exposed aggregate concrete to be repaired. Similarly, multiple variations of spine - different lengths, widths and colours, could be included in the kit, the various spines being pre-coated with droplets. The droplets could also vary in size and colour so as to provide suitable options for repair purposes.
The camouflage filler material of the present invention provides a durable, camouflaging repair to a crack in exposed aggregate. It is a long lasting solution, the rubber characteristics of the sealant and rubber droplets being able to handle heavy vehicular traffic and acting to prevent further water ingress into the crack and the resulting worsening such water ingress may cause. It is a quick and easy repair solution that can be used on any exposed surface regardless of its orientation be it horizontal or vertical surfaces or some angle in between.
It will be appreciated by those skilled in the art that the preferred and alternative embodiments have been described in some detail but that certain modifications may be practiced without departing from the principles of the invention.
These and other features of the invention will become more apparent from the following description in which reference is made to the appended drawings and wherein:
Fig. 1 is a perspective view of a section of aggregate having a crack;
Fig. 2 is a perspective view of the section of aggregate shown in Fig. 1, with the crack repaired;
Fig. 3 is perspective view of a portion of the repaired aggregate showing the various layers of repair material according to the preferred embodiment of the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Exposed aggregate is a mixture of concrete with a consistent aggregate size and colour. When the aggregate is poured in place, the upper surface layer, typically about 2 cm thick, is retarded from curing. Once the un-retarded concrete has cured, the retarded upper surface layer is removed by spraying it with water. This exposes the surface of the concrete slab, revealing the various aggregate set in place in the cured concrete, hence the term exposed aggregate.
A slab of exposed aggregate 10 is shown in Fig. 1 having a large crack 12 extending therethrough. In order to repair the crack 12, a grinder or the like, preferably with a diamond or carbide blade, is used to grind a groove 14 along the length of the crack, preferably with the crack centered along the base of the groove 14. Groove 14 works to smooth out potentially jagged switchbacks of the crack and to provide a uniform depression within which repair material can be placed as discussed in more detail below. Preferably, the groove 14 forms a depression no more than 3/8 of an inch deep to allow proper curing of the repair material. The width of the groove will depend on the displacement of the crack to be repaired.
As shown in Fig. 2, after the groove 14 has been grinded the length of the exposed surface of crack 12 it is filled according to the present invention to seal the crack with a camouflaged filler material 15. This will be described in more detail with reference to Fig. 3.
Camouflaged filler material 16 is preferably comprised of a flexible base sealant 18, and a flexible spine 20 having a plurality of randomly placed rubber droplets 22 affixed thereto. Spine 20 is preferably an elongated flexible member having branching elements 24 extending therefrom. Spine 20 is preferably formed by placing sealant material in a pre-shaped mold and allowing it to dry. It is also contemplated that the spine could be formed of a strip of material such as a string or the like that is coated with the sealant material. Preferably, the flexible member has branching elements providing a surface to which the rubber droplets 22 can be affixed. For example, a strip of carpet matting (the mat matrix used to hook rugs as in hobby type rug making) cut to provide the elongated member with branching elements has been found to work well, however it is contemplated that other materials would be suitable provided that they are flexible and capable of bonding with the rubber droplets 22.
Similarly, other shapes for the spine are contemplated, provided that it is elongated and sufficiently wide to provide a surface upon which droplets can be placed.
After the spine 20 has properly cured it is then coated along one side with droplets 22 of rubber sealant randomly distributed along its length. The colour of the droplets can be varied so as to blend with different aggregate colours. Preferably the sealant and droplets are made of a urethane caulking, which can be varied in colour and viscosity.
The length and width and colour of the spine 20 can be varied for different applications. Similarly, the colour, size and number of droplets can be varied to correspond to different aggregate types.
After grinding the groove 14, it is filled with a base sealant matching the colour of the concrete. A length of spine 20 the colour of the base sealant and with droplets 22 matching the colour of the aggregate is selected and cut to correspond to the length of the groove. The spine is then carefully inserted into the base sealant 18 leaving the droplets 24 exposed along the top surface. By matching the spine 20 to the base sealant 18, the spine 20 essentially becomes invisible when inserted into the base sealant 18 leaving the droplets 22 visible along the top.
The droplet coated spines could be sold as a unit and could come in a variety of colours and sizes. It is contemplated that the product of the invention could be sold as an aggregate repair kit that would include base sealant of a given colour and a length of spine the colour of the base sealant that is coated with droplets, the droplets being a different colour than the spine and base sealant. Each kit could include multiple variations of base sealant having different colours so as to enable proper matching to the exposed aggregate concrete to be repaired. Similarly, multiple variations of spine - different lengths, widths and colours, could be included in the kit, the various spines being pre-coated with droplets. The droplets could also vary in size and colour so as to provide suitable options for repair purposes.
The camouflage filler material of the present invention provides a durable, camouflaging repair to a crack in exposed aggregate. It is a long lasting solution, the rubber characteristics of the sealant and rubber droplets being able to handle heavy vehicular traffic and acting to prevent further water ingress into the crack and the resulting worsening such water ingress may cause. It is a quick and easy repair solution that can be used on any exposed surface regardless of its orientation be it horizontal or vertical surfaces or some angle in between.
It will be appreciated by those skilled in the art that the preferred and alternative embodiments have been described in some detail but that certain modifications may be practiced without departing from the principles of the invention.
Claims (3)
1. A method for repairing a crack in an exposed aggregate concrete surface comprising:
grinding a groove in said aggregate along the length of said crack;
filling said groove with a camouflaged filler.
grinding a groove in said aggregate along the length of said crack;
filling said groove with a camouflaged filler.
2. The method of claim 1 wherein said camouflaged filler comprises a base sealant and an elongated member coated with droplets, said base sealant being inserted into said groove and said elongated member being inserted into said base sealant leaving said droplets visible.
3. A kit for repairing a crack in an exposed aggregate concrete surface comprising:
a base sealant for filling said crack; and an elongated flexible member corresponding in color to the color of said base sealant, said elongated flexible member being coated with droplets, said droplets corresponding in size and color to aggregate in said exposed aggregate concrete surface.
a base sealant for filling said crack; and an elongated flexible member corresponding in color to the color of said base sealant, said elongated flexible member being coated with droplets, said droplets corresponding in size and color to aggregate in said exposed aggregate concrete surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2695333 CA2695333A1 (en) | 2010-03-04 | 2010-03-04 | Aggregate repair method and product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2695333 CA2695333A1 (en) | 2010-03-04 | 2010-03-04 | Aggregate repair method and product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2695333A1 true CA2695333A1 (en) | 2011-09-04 |
Family
ID=44561299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2695333 Abandoned CA2695333A1 (en) | 2010-03-04 | 2010-03-04 | Aggregate repair method and product |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2695333A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2010517C2 (en) * | 2013-03-25 | 2014-09-29 | Robertus Antonius Wilhelmus Muijen | DEVICE AND METHOD FOR PROCESSING A COATING OF A ROAD. |
| CN105603855A (en) * | 2016-01-05 | 2016-05-25 | 杭州修路人科技有限公司 | Method for repairing concrete pavement cracks |
| CN106522077A (en) * | 2016-11-10 | 2017-03-22 | 曹立强 | Rapid compounding repair method of pavement |
| CN106758662A (en) * | 2017-01-05 | 2017-05-31 | 孙晗 | A kind of road damage revamping structure |
| CN107130495A (en) * | 2017-05-16 | 2017-09-05 | 浙江交通职业技术学院 | A kind of pavement crack vacuum cementation of fissures method and apparatus |
| CN108797292A (en) * | 2017-04-26 | 2018-11-13 | 福建省第公路工程公司 | A kind of cement concrete cracks breakage raggle formula patching |
| CN109056484A (en) * | 2018-08-15 | 2018-12-21 | 中国葛洲坝集团股份有限公司 | Cement stabilized macadam layer parting construction method |
| CN112709118A (en) * | 2020-12-31 | 2021-04-27 | 江苏中路工程技术研究院有限公司 | High-pressure seal assembly device for asphalt pavement grouting |
| CN114892466A (en) * | 2022-05-24 | 2022-08-12 | 新疆北新科技创新咨询有限公司 | Road gap filling and repairing structure |
-
2010
- 2010-03-04 CA CA 2695333 patent/CA2695333A1/en not_active Abandoned
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2010517C2 (en) * | 2013-03-25 | 2014-09-29 | Robertus Antonius Wilhelmus Muijen | DEVICE AND METHOD FOR PROCESSING A COATING OF A ROAD. |
| CN105603855A (en) * | 2016-01-05 | 2016-05-25 | 杭州修路人科技有限公司 | Method for repairing concrete pavement cracks |
| CN106522077A (en) * | 2016-11-10 | 2017-03-22 | 曹立强 | Rapid compounding repair method of pavement |
| CN106758662A (en) * | 2017-01-05 | 2017-05-31 | 孙晗 | A kind of road damage revamping structure |
| CN108797292A (en) * | 2017-04-26 | 2018-11-13 | 福建省第公路工程公司 | A kind of cement concrete cracks breakage raggle formula patching |
| CN107130495A (en) * | 2017-05-16 | 2017-09-05 | 浙江交通职业技术学院 | A kind of pavement crack vacuum cementation of fissures method and apparatus |
| CN109056484A (en) * | 2018-08-15 | 2018-12-21 | 中国葛洲坝集团股份有限公司 | Cement stabilized macadam layer parting construction method |
| CN109056484B (en) * | 2018-08-15 | 2020-06-23 | 中国葛洲坝集团股份有限公司 | Cement-stabilized gravel layer parting construction method |
| CN112709118A (en) * | 2020-12-31 | 2021-04-27 | 江苏中路工程技术研究院有限公司 | High-pressure seal assembly device for asphalt pavement grouting |
| CN112709118B (en) * | 2020-12-31 | 2022-04-29 | 江苏中路工程技术研究院有限公司 | High-pressure seal assembly device for asphalt pavement grouting |
| CN114892466A (en) * | 2022-05-24 | 2022-08-12 | 新疆北新科技创新咨询有限公司 | Road gap filling and repairing structure |
| CN114892466B (en) * | 2022-05-24 | 2023-10-31 | 新疆北新科技创新咨询有限公司 | Road gap filling and repairing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |
Effective date: 20130304 |