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Meets or exceeds the following ASTM requirements:
ASTM C 140 | ASTM C 67 | ASTM C 33 | ASTM C 150 | ASTM C 979 | ASTM C 1028-96

 

 


1 5/8” Thick Specifications

Technical Specification – Cobble Systems Pavers with Integrated Nylon Grid Backing and Epoxy Grout

A. Materials

1. The contractor or home owner shall furnish and install Cobble Systems pavers as specified. The cobble paver design shall be Straight, Fan, Fan Start/End, or Half Circle as manufactured by Cobble Systems, Inc. 100 W. Livingston Street, Orlando, FL, 32801. The pavers shall be Charcoal, Rustic Red, Sand or Terracotta color, granite and cement mix according to design #MH 730. Integral grid backing design of nylon and rubber according to design #NL Pi 452. Epoxy grout # US P3227.

2. Cobble Systems paver Mats: concrete and granite mold designed mats rising from a strong open grid intregal to the stones. Units will be shipped preassembled and on a pallet. Standard colors are Charcoal, Rustic Red, Sand or Terracotta.

3. EuroGrout D-2000 Epoxy Grout: a user friendly, water cleanable (soap and water), 100% solids epoxy grout. Used for grouting Cobble Systems patented stone mats. It is supplied in prepackaged kits containing resin, hardener, and special silica sand.

B. Installation

1. A 6” base course of soil cement, paving fines, or acceptable aggregate base. Aggregate base should consist of Class II, 6-12, crusher-run or equal. Soil subgrade should be compacted prior to installation of the base material to 98% of standard Proctor density as specified in ASTM D 698. However, modified Proctor density (ASTM D 1557) is preferred, especially for areas under constant vehicular traffic. Like compaction of the soil subgrade, adequate compaction of the base is critical to minimizing settlement of interlocking concrete pavements. Special attention should be given to achieving compaction standards adjacent to edge restraints, catch basins and utility structures. When spread and compacted, the aggregate base should be at its optimum moisture. Bases for pedestrian areas and residential driveways should be compacted a minimum 98% of standard Proctor density. For vehicular areas, compaction should be at least 98% of modified Proctor density as determined by ASTM D 1557, or AASHTO T180. While the highest percentage compaction (100%) is preferred, it may not be achievable on weak or saturated soils. Density measurements of the compacted base should be made a nuclear density gauge or other methods approved by the local, state or provincial transportation department. Unless otherwise specified, the compacted thickness should be + 3 / 4 in. to 1 / 2 in. (+19 mm to 13 mm), and variation in surface smoothness should not exceed + 3 / 8 in. (+10 mm) when tested with a 10 ft. (3 m) straightedge. Bedding sand under concrete pavers should conform to ASTM C 33 or CSA A23.1 with no greater than 1% passing the No. 200 (0.075 mm) sieve. This material is often called concrete sand. Masonry sand for mortar should never be used for bedding, nor should limestone screenings or stone dust. The bedding sand should have symmetrical particles, generally sharp, washed, with no foreign material. Waste screenings or stone dust should not be used, as they often do not compact uniformly and can inhibit lateral drainage of moisture in the bedding sand. Bedding sand should be spread and screeded to a consistent thickness, between ¾” and 1 in.

2. Inspection: Examine subgrade and base course installed conditions. Do not start Cobbles System installation until unsatisfactory conditions are corrected. Check for poor drainage, improperly compacted trenches, debris, and improper gradients. Installation constitutes acceptance of existing conditions and responsibility for satisfactory performance. If existing conditions are found unsatisfactory, contact Project Manager for resolution.

3. Install the Cobble Systems mats by placing stones up. Borders should be installed first to insure proper design layout. To install continuous mats remove half stones at ends using pruning type sheers (Fiskar’s Soft Grip Multi-Snip # 7925). Stones should be cut using a stone splitter. Stones should be compacted using a vibrating plate and compacting the bottom of the stones at least 3/8” into the subbase. Once design is fully installed clean off excess debris and dirt with an air blower. Joints should be free of leaves and debris. Base shall be free of standing water. Mix epoxy with mixing machine following manufacturer’s instructions for proper mixing. In small sections use a squeegee (Etore #61018-24) to work grout between stones. It is important to remove all excess sand from the stone with the squeegee prior to spreading another batch of epoxy.

 

 


3/4" Thick Specifications

Technical Specification – Cobble Systems Pavers with Integrated Nylon Grid Backing and Epoxy Grout

A. Materials

1. The contractor or home owner shall furnish and install Cobble Systems pavers as specified. The cobble paver design shall be Straight as manufactured by Cobble Systems, Inc. 100 W. Livingston Street, Orlando, Fl 32801. The pavers shall be Charcoal, Rustic Red, Sand or Terracotta color, granite and cement mix according to design #MH 730. Integral grid backing design of nylon and rubber according to design #NL Pi 452. Epoxy grout #US P3227.

B. Materials

1. A base course of concrete.

2. Cobble Systems paver Mats: concrete and granite mold designed mats rising from a strong open grid intregal to the stones. Units will be shipped preassembled and on a pallet. Standard colors are Charcoal, Rustic Red, Sand or Terracotta.

C. Installation

1. Inspection: Examine base course installed conditions. Do not start Cobble System installation until unsatisfactory conditions are corrected. Check for poor drainage, improperly compacted trenches, debris, and improper gradients. Installation constitutes acceptance of existing conditions and responsibility for satisfactory performance. If existing conditions are found unsatisfactory, contact Project Manager for resolution.

2. Install using proper thin set mortar as conditions warrant.

3. Install the Cobble Systems mats by placing stones up. Borders should be installed first to insure proper design layout. To install continuous mats remove half stones at ends using pruning sheers (Fiskar's Soft Grip Multi-Snip # 7925). Stones should be cut using a stone splitter. Once design is fully installed clean off excess debris and dirt with an air blower.

 

 


Epoxy Grout Instructions

***CLEAN ALL DEBRIS (LEAVES, TRASH, ETC…) OUT OF GROUT JOINTS BEFORE GROUTING. DO NOT GROUT IF WATER IS STANDING IN THE GROUT JOINTS. DO NOT GROUT IF TEMPERATURE IS BELOW 45 DEGREES FAHRENHEIT OR IF TEMPERATURE IS EXPECTED BELOW 32 DEGREES FAHRENHEIT WITHIN 24 HOURS. ALWAYS BEGIN GROUTING THE STONES AT THE TOP OF A SLOPED DRIVEWAY OR WALKWAY. ***

1. Apply over properly prepared sub-base. Minimum joint depth shall be 1 ¼” on 1 5/8” product and ½” on ¾” product. Minimum joint width shall be 3/16”. Clean all debris (leaves, trash, etc…) out of grout joints before grouting. Do not grout if water is standing in the grout joints. Do not grout if temperature is below 32 degrees Fahrenheit within 24 hours. Always begin grouting the stones at the top of a sloped driveway or walkway. Working time is approximately 10 minutes at 68 degrees Fahrenheit. Lower temperatures will slow hardening and warmer temperatures will speed hardening.

2. Lightly spray water on inside of mixer before starting first batch. Empty one 50 lb. bag of sand into mixer. (Red Lion “Big Cat”, 3 ½ cubic foot, electric mixer, or equal) (Larger electric and/or gas mixers may be used for larger batches)

3. Empty one Part (A) and one Part (B) container into mixer.

4. Add water into mixer by using empty Part A and B containers. Fill Part A and B containers to the top with water and pour into mixer. Turn mixer on and run for 2 minutes. When using a wheelbarrow, lightly coat wheelbarrow with water and add above mixed grout. (Batches may be doubled, tripled, etc… in mixer if space is available.)

5. Lightly spray cobblestones and squeegee with water prior to pouring out the epoxy grout.

6. Use foam squeegee to grout joints using medium pressure to insure coverage. (Acceptable foam squeegee manufacturers: Unger #92123, or Ettore #61018-18) Gently sweep excess grout off the top of the stones using the squeegee. Remove as much sand as possible from the top of the stones with the squeegee before spreading another batch of grout. Stay off of grouted areas to avoid separating the bond between the grout and the stone.

7. Excess sand on top of the stones may be swept off with a stiff bristle push broom. Any brooming should be performed before the grout begins to harden. In 68 degree Fahrenheit temperature brooming should be performed within 15 to 20 minutes and at a 45 degree angle to the joint.

8. Let dry. Cover if rain is predicted within 5 hours. Keep foot traffic off of stones for 5 hours. Light vehicular traffic can drive on the cobblestones after 24 hours in warm temperatures (70 to 100 degrees) and 48 to 72 hours in colder temperatures (33 to 70 degrees).

NOTE:
Do not reuse swept off material. During the initial application of the grout, a very thin film of epoxy may remain on the stone causing the stone color to intensify. This film however, will begin to disappear in exposed weather and through abrasion over a few weeks.

Mixer, foam squeegees and brooms are available at your local material supply houses.

 

 


Warranty

Cobble Systems manufactures premier simulated stone products by utilizing superior materials and admixtures along with high quality control standards. We provide a 20 year guarantee on the structural integrity of our products, but not the installation. Material that is found to be defective beyond normal wearing of the product will be replaced as long as the material was installed according to manufacturers specifications using approved installation techniques. Color, texture and finish cannot be guaranteed to match the original product. Labor and transportation costs relating to replacement of material are not included. No claims will be accepted without authorization from a Cobble Systems representative. Proof of purchase is required. Damage resulting from misuse, abuse or abnormal use, chemical action, improper installation or faulty design are expressly excluded from this Warranty. Due to the nature of the products, color variances and efflorescence cannot be guaranteed.

 




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