AQUAFIN Inc. 505 Blue Ball Rd. #160 Elkton, MD 21921 p: 410-392-2300 f: 410-392-2324 e: info@aquafin.net w: www.aquafin.net
An AQUAFIN Brand Product
Technical Datasheet
Pavemend KEMROK™
Pre-extended, CHEMICAL RESISTANT REPAIR CONCRETE CSI Div. 03 03 31 23 High Performance Structural Concrete
Physical and Technical Data
LEED Points
Compressive Strengths, psi (MPa) ASTM C 39
> 3,000 @ 3 hours > 4,500 @ 24 hours > 6,000 @ 7 days > 7,500 @ 28 days
Flexural Strength, psi (MPa) ASTM C 78
> 800 @ 7 day > 1,000 @ 28 days
Splitting Tensile Strength, psi (MPa) ASTM C 496
> 500 @ 28 days
Bond Strength, psi ASTM C 882
> 2,200 @ 24 hours > 2,500 @ 7 days
Rapid Freeze Thaw Resistance
100% @ 300 cycles
MR Credit 5.1, Regional Materials..........................Up to 2 Points IEQ Credit 4.2, L ow-Emitting Materials Paints and Coatings...1 Point Using this AQUAFIN product can help contribute to LEED certification of projects in the categories shown above.
General Charateristics: KEMROK is a rapid return to service, chemical and hydrogen sulphide resistant pozzolan cement repair concrete. It is a single component powder that is water activated. KEMROK packaged units have 30 minutes of working time and will reach compressive strengths of greater than 3,000 psi in 3 hours. KEMROK can be applied in ambient temperature ranges from 40°F–120°F, places and finishes like traditional concrete and cleans up easily with water. KEMROK has been engineered for low permeability and is resistant to chemical attack by sulfuric compounds and related acids. Typical Applications: KEMROK has been designed for horizontal, sloped and form and pour or pump applications of industrial concrete infrastructure, secondary containment, sulfuric acid exposure and similar. Site Preparation: • Substrates must be of load bearing capacity, and free from all potential bond breakers such as dirt, dust, grease, oil, sealers, curing compounds, laitance, loose or deteriorated concrete and any bond-inhibiting foreign substances. • Mechanically prepare surfaces to achieve a surface profile equal to CSP 5 – 7. Concrete Surface Profile as per ICRI Guideline No. 310.2-1997 (Formerly Guideline No. 03732) • All surfaces to be repaired should be saturated surface dry (SSD) but have no standing water. Hot surfaces should be cooled and shaded while cold surfaces should be heated and sheltered.Mechanically remove all loose materials by suitable means such as chipping hammer, chisel, sandblast, high pressure water blast (>5000 psi), or similar methods. Mixing Instructions: Standard Mixing Procedures (Rotating Drum Concrete Mixer). Mix at least 2 units at a time (Use 4 quarts of water for 2 bag batches).: 1. Pre-wet cement mixer with water then drain all water from mixer (away from repair area). 2. Start mixer - KEMROK requires a total of 2 quarts of water per 53.5 lb. unit. Initially, add only 1 quart of water to concrete mixer per 53.5 lb unit of KEMROK to be used. 3. Add pre-determined units of KEMROK, mix for 1 minute. 4. Add in remaining quart of water per unit of KEMROK. 5. Mix for 6 additional minutes or 7 minutes total. 6. Pour all contents into repair area. 7. Clean mixer or repeat process for next batch
(Durability Factor - Retained percentage of Dynamic Modulus) ASTM
C 666A
Scaling Resistance, lbs/ft2 ASTM C 672
0 @ 50 cycles
Modulus of Elasticity, msi ASTM C 469
4.7 X 106 @ 28 days
Coefficient of Thermal Expansion, in/in/oF
<1.6 X 10-6 AASHTO TP 60
Length Change, % of total length ASTM C 157
-0.052/-0.057 @ 28 days soak/dry
Abrasion Resistance, mm of wear ASTM C 944 (2005)
0.17 @ 28 days soak/dry
Chemical Resistance, 68% Sulfuric Acid Immersion
5.3 @ 7 days (% change in mass) (Portland Cement = 33.8)
Results provided by licensed engineering test laboratory and represent typical results from production materials. Actual results may vary from third party testing results; however, Pavemend materials meet and/or exceed ASTM C928, and exceed established internal quality control standards, (available upon request). All samples were air cured.
Additional Physical Properties Set Times at 72°F/22°C Initial set: 30 - 40 minutes Final set: 35 - 45 minutes
Unit Weight: approximately 152 lb/ft3 (2,435 kg/m3)
Yield per 53.5 lb Unit
0.40 ft3 (0.011 m3) #8 - 3/8” fractured stone included
NOTES: • In ambient temperatures, < 40°F / 10°C: use warm water (70°F/22°C to 90°F/32°C). • In ambient temperatures > 85°F/ 29°C: use cooler water (50°F/ 10°C to 60°F/16°C). • Working times will vary when mix water temperature’s are outside of these recommendations.
Check our website for the latest version of the Technical Datasheet. www.aquafin.net • www.pavemend.com
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For & As
Pavemend KEMROK™ Application & Finish: Surfaces of host concrete must be damp with no standing water. • Working times based on ambient temperature, types of aggregate and total amount of water. Working times are influenced by surface temperature and repair profile. Working time can be extended by adding Aquafin’s Set Retarder Admixture to mix water. (See Set Retardant product data sheet for more information). • Minimum profile thickness is 1.25” (3.2 cm). There are no restrictions to the depth of the repair profile. • For best results, Aquafin recommends monolithic placement of repair materials. Maintain a minimum thickness of 1” if repair material must be layered. Material must also be layered before final set has been reached. • 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 hours for wheeled traffic and 1 hour for foot traffic after addition of water. Add 30 minutes for every 10°F drop in temperature. Contact Aquafin Field Engineering for Cold Weather Applications (40°F/4.5°C and below). • 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), water curing not required or recommended. • Clean all tools and equipment with water prior to the material reaching final set.
LIMITED WARRANTY: AQUAFIN, INC. warrants this product for a period of one year from the date of installation to be manufactured free of defects and to be consistent with its technical properties as stated in our current Technical Data Sheet. This product must be used as directed and within its stated shelf life. AQUAFIN INC. will replace or at our discretion refund the purchase price of any product, excluding cost of labor, which is proven to be defective. Our product recommendations are based on industry standards and testing procedures. It is the buyer’s obligation to test the suitability of the product for an intended use prior to using it. We assume no warranties written, expressed or implied as to any specific methods of application or use of the product. AQUAFIN INC. MAKES NO WARRANTY AS TO MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE AND THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED. AQUAFIN, INC. shall not be liable for damages of any sort including remote or consequential damages, down time, or delay. Any claim for a defectiveproduct must be filed within 30 days of discovery of a problem, and must be submitted with written proof of purchase.
For Professional Use Only.
Limitations: • Not recommended for surface temperatures above 120°F/49°C or below 40°F/10°C. (Contact Aquafin Technical support for temperatures below 50°F). Packaging & Shelf Life: • PACKAGING 53.5 lb (24.3 kg) Bag • SHELF LIFE: 1 year • STORAGE: Bags must be kept dry Note: Installer is responsible for proper product application. Site visits by Aquafin personnel or representatives are solely for the purpose of making technical recommendations, not for providing supervision or quality control. Safety: Refer to Safety Data Sheet (SDS). The use of a dust mask, safety goggles and gloves is recommended. 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 and materials in accordance with Federal, State and Local regulations. Keep out of the reach of children.
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