Pavemend SL® |
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Pavemend SL® is a cementitious, rapid setting, semi- self leveling structural repair mortar. It is a single component
powder that is water activated. Pavemend SL® has 15 to 20 minutes of working time and will reach compressive strengths of
more than 2,500 psi within two hours and more than 8,500 psi at 28 days. Designed for use in horizontal and near horizontal
repair applications, Pavemend SL® can be applied in ambient temperature ranges from 40 to 110 degrees Fahrenheit.
Recommended Uses
Pavemend SL® is an ideal rapid repair material for roads and bridges, airport runways, warehouse or manufacturing facility floors, post-tension cable repairs and form and pour projects.
Features and Benefits
Features |
Benefits |
Rapid Strength Development |
Rapid Return to Service |
Non-shrink |
Dimensionally Stable |
Mild Modulus of Elasticity |
Exceptional Volume Stability Over Wide Temperature Ranges Reducing Stress at Bond Interface |
Low Coefficient of Thermal Expansion / Contraction |
Dimensionally Stable in Wide Temperature Ranges for Long Term Durability of Repair |
Self Priming |
No Secondary Bonding Agents |
| Self Curing | No Moist Curing, Tenting or Blanketing |
Water Clean-Up |
No Hazardous Chemicals Required for Cleaning Tools |
Can be Layered |
Will Not Produce Cold Joints |
Wide Temperature Applications |
Can Be Applied in Extreme Temperatures Without Effecting Long Term Performance Characteristics |
Neutral pH Between 7.5 - 8.5 |
Will Not Cause Burns When Handled |
Limitations
- Not recommended for surface temperatures above 110°F/43°C or below 40°F/4°C
- Not for submerged applications
- Will not bond to polymers
- Cannot be pumped
- Can be mixed with drill and paddle, rotating drum concrete mixer or mortar mixer
Unit Weight (with water, sand & aggregate)
152 lb/ft³ (2434 kg/m³)
Setting Time
Set Times at 72°F/22°C at 1” (2.54 cm ) material depth
Initial set: 15 - 20 minutes
Final set: 25 - 35 minutes
Volume Yield
0.41 ft³ (0.012 m³) per 47.4 lb. (24.8 kg) unit
Packaging
47.4 lb (24.8 kg) 5 gallon (18.9 L) bucket
Shelf Life
Buckets - 3 years (when stored in original unopened bucket)
Storage
Buckets are environmentally sealed and require no special storage requirements
Test Data
Results provided by licensed engineering test laboratory and represent typical results from production materials. Actual results may vary from third party testing results; however, CERATECH’s materials meet and/or exceed established internal quality control standards, (available upon request) . All samples were air cured.
| Property | Results 4 in. x 8 in. cylinders |
TEST METHOD |
|
| Compressive Strengths, psi (MPa) 2" cubes | |||
2 hours |
2600 (17.9) |
ASTM C 39 |
|
1 day - 24 hours |
5104 (35.2) |
ASTM C 39 |
|
7 days |
8197 (56.5) |
ASTM C 39 |
|
28 days |
TBD |
ASTM C 39 |
|
| Flexural Strength, psi (MPa) | |||
7 days |
TBD |
ASTM C 78 |
|
28 days |
TBD |
ASTM C 78 |
|
| Splitting Tensile Strength, psi (MPa) | |||
7 days |
TBD |
ASTM C 496 |
|
28 days |
TBD |
ASTM C 496 |
|
| Bond Strength, psi (MPa) | |||
1 day - 24 hours |
1025 (7.0) |
ASTM C 882 |
|
7 days |
1600 (11.0) |
ASTM C 882 |
|
| Scaling Resistance, lbs/ft2 (kg/m2) | |||
25 cycles |
TBD |
ASTM C 672 |
|
| Modulus of Elasticity, msi (GPa) | |||
28 days |
TBD |
ASTM C 469 |
|
| Coefficient of Thermal Expansion, in/in/ºF | |||
| 28 days | TBD |
AASHTO TP 60 |
|
| Length Change, % of total length | |||
| 14 days dry | -0.039 |
ASTM C 157 |
|
Site Preparation
Surfaces should be prepared in accordance with ICRI 03730, “Guide for Surface Preparation for the Repair of Deteriorated Concrete Resulting from Reinforcing Steel Corrosion.” and / or ACI 546R-96 “Concrete Repair Guide” Concrete surface should be prepared by appropriate mechanical methods to obtain an exposed aggregate surface with a minimum surface profile of +/- 1/16” (1.5 mm) in accordance with ICRI 03732. Pre-existing coatings or surface treatments should be completely removed. SSD, clean, stable surfaces are required. Remove all standing water. Reinforcing steel should have no loose scale. Surfaces of concrete host to be repaired must be damp with no standing water.
Standard NEAT Procedures (Bucket Mixing with Drill & Paddle)
- Loosen material by tumbling bucket & dry mixing before adding water.
- To ensure product performance, DO NOT divide or separate individual units into smaller portions. MIX ENTIRE CONTENTS AT ONE TIME.
- A drill (6 amp minimum) with a mixer blade turning at least 500 to 800 rpm is required. Drills with speeds greater than 800 RPMs may entrain air in the mix.
- DO NOT HAND MIX.
- To begin the mixing process, add the proper amount of water:
For Each Add 47 lb (24.8 kg) 5 gallon (18.9 L) bucket 2 U.S. quarts (1.9 L) of water
- Ideal water temperature is between 65°F/18°C and 75°F/24°C.
- After adding the water, it is very important to rapidly incorporate all of the dry Pavemend SL® powders into water to achieve a uniform wet mixture within the first 30 seconds of mixing.
- Mix for 3 1/2 minutes and place.
Standard Mixing Procedures (Rotating Drum Concrete Mixer or Mortar Mixer)
- Pre-wet cement mixer with water then drain all water from mixer (away from repair area)
- Start mixer - Pavemend SL® requires a total of 2 quarts of water per 47 lb. unit. Initially, add 75% of total mix water to concrete mixer
- Add pre-determined units of Pavemend SL® , mix for 1 minute
- Add in remaining mix water
- Mix for 6 additional minutes or 7 minutes total
- Pour all contents into repair area
- Clean mixer or repeat process for next batch
MIXING NOTES
- In ambient temperatures, < 50°F/10°C, use warm water from 70°F/22°C to 90°F/32°C
- In ambient temperatures > 85°F/29°C, use cooler water from 50°F/10°C to 60°F/16°C
- Working times will vary when mix water temperature’s are outside of these recommendations
- Minimum recommended batch size is 2 units ( Use 4 quarts of water for 2 bag batches)
- Surfaces of host concrete must be damp with no standing water.
- Working times are based on ambient temperature
- Working times are influenced by surface temperature and repair profile.
- Minimum profile thickness is 0.38” (0.9 cm). There are no restrictions to the depth of the repair profile.
- Upon initial set, a broom finish can be applied. Upon final set, the material can be saw-cut, drilled, sanded and/or polished
- Do not re-temper. The addition of water to the surface of the repair will negatively affect the materials final properties.
- General loading in 2 - 3 hours for wheeled traffic and 1 - 1 1/2 hours for foot traffic after addition of water. In ambient and/or surface temperatures below 32°F/0°C, extend the loading time by 60 minutes for each 10° below 32°F/0°C.
- All previously existing joints must be re-established within 2-3 hours of final set.
- Self-curing, (Protect with blankets or equivalent in ambient temperatures below freezing (32°F/0°F).
- Clean all tools and equipment with water prior to the material reaching final set.
Safety
- See Material Safety Data Sheet (MSDS).
- This document does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this document to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.
- Dispose of water materials in accordance with Federal, State, and Local regulations.
- The use of a dust mask, safety goggles and gloves is recommended.
- Keep out of reach of children.
WARRANTY
CERATECH, Inc. (“CERATECH”) warrants that its products are free from defects in materials and workmanship. If any CERATECH product fails to conform to this warranty, CERATECH will replace the product at no cost to the buyer or refund the purchase price, at CERATECH’s election. Any warranty claim must be made within one (1) year from the date of the shipment of the product to the buyer. In no event shall CERATECH be liable to the buyer for any consequential or incidental damages of any nature. CERATECH MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED, WRITTEN OR ORAL AS TO THE MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF ITS PRODUCTS AND EXCLUDES THE SAME. THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF.


