505 Blue Ball Rd. #160
Elkton, MD 21921
An AQUAFIN Brand Product
Pre-extended, CHEMICAL RESISTANT REPAIR CONCRETE
CSI Div. 03
03 31 23 High Performance Structural Concrete
Physical and Technical Data
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.
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
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.
• 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
• 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.
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
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
<1.6 X 10-6
AASHTO TP 60
Length Change, % of total length
ASTM C 157
-0.052/-0.057 @ 28 days
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
Initial set: 30 - 40 minutes
Final set: 35 - 45 minutes
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
• 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
Check our website for the latest version of the Technical Datasheet.
www.aquafin.net • www.pavemend.com
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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
• 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
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.
• Not recommended for surface temperatures above 120°F/49°C or
below 40°F/10°C. (Contact Aquafin Technical support for temperatures
Packaging & Shelf Life:
53.5 lb (24.3 kg) Bag
• SHELF LIFE:
Bags must be kept dry
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.
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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