Technical Data

High Performance Cement by Quikrete
®
www.highperformancecement.com • (800) 388-4338
FastSet
Repair Mortar
Table 1 Typical
Physical Properties
Setting time, ASTM C191
Initial Approx. 20 min.
Final 20 - 40 min.
Approx. water content / 55# bag
10 pints (4.7 L)
Consistency
gel-like
Unit weight
128 lb/cu ft (2051kg/m3)
Compressive strength, ASTM C109 modified
3 hours 2000 psi (13.8 MPa)
24 hours 4000 psi (27.6 MPa)
7 days 5000 psi (34.5 MPa)
28 days 6000 psi (41.4 MPa)
Slant shear, ASTM C882 modified
24 hours 1000 psi (6.9 MPa)
7 days 1500 psi (10.3 MPa)
28 days 2500 psi (17.2 MPa)
Length change, ASTM C157 (typical)
28 days, air -0.1%
28 days, water +0.1%
Installation
SURFACE PREPARATION
Remove all spalled areas, as well as areas of unsound
concrete and previous patching materials.
Holes should be chipped out to create a new sound
substrate.
If rusty reinforcing steel is present, it must be
abrasive blasted to remove rust. Wear appropriate
personal protective equipment. In many cases, it will
be best to remove enough material to completely
expose the reinforcing steel.
Large vertical or overhead patches deeper than 2”
(51 mm) should contain reinforcing steel. If none
is present, new steel should be inserted using
appropriate techniques.
Holes should be dampened with clean water before
patching. No puddles of water should be left in the
hole.
MIXING
WEAR IMPERVIOUS GLOVES, such as nitrile when
handling product.
Add approximately 10 pints (4.7 L) of water to the
mixer for each 55 lb (25 kg) bag of FastSet
Repair
Mortar being mixed.
Add the product and mix for approximately 3
minutes. Adjust water as needed to achieve a stiff
gel-like consistency.
Where large quantities of material are used for
patches deeper than 2” (51 mm), FastSet
Repair
Mortar may be extended up to 27.5 lb (12.5 kg) of
-3/8” (-9.5 mm) (or -1/2(-12.7 mm)) clean maximum
size aggregate per 55 lb (25 kg) bag. This will
require a small addition of water depending on the
dampness of the aggregate.
APPLICATION
FastSet
Repair Mortar should be trowel applied to
the damp surface. Apply a thin layer with heavy trowel
pressure, and then go back and build up to the desired
thickness. FastSet
Repair Mortar obtains high bond
strength without the use of bonding adhesives or
acrylic additives. After initial set, the material may be
trimmed and shaped to match the existing contours of
the patch area.
CURING
During the rst 24 hours, it is best to keep the patch
covered or damp to prevent excessive loss of water.
Under hot, dry and windy placement conditions,
all concrete tends to lose moisture unevenly and
may develop plastic shrinkage cracks. The use of
QUIKRETE
®
Acrylic Concrete Cure & Seal (No. 8730),
plastic sheeting, or an application of a very fine fog
spray of water avoids shrinkage cracking.
Precautions
Do not apply when temperatures are below 40
degrees F (4 degrees C) or are expected to drop
below 32 degrees F (0 degrees C) within 24 hours.
In hot weather, use cool mixing water to lengthen
setting time.
Mix no more material than can be used in 15 minutes.
Do not re-temper with additional water.
Notice of Limited Warranty:
The QUIKRETE
®
Companies, LLC. warrant this product
to be of merchantable quality when used or applied
in accordance with the instructions hereon. This
product is not warranted as suitable for any purpose
or use other than the general purpose for which it
is intended. Liability under this warranty is LIMITED
to the replacement of its product (as purchased) if
found to be defective, or at the shipping companies
option, to refund the purchase price. In the event of
a claim under this warranty, notice must be given to
The QUIKRETE
®
Companies, LLC. in writing at: One
Securities Centre, 3490 Piedmont Road, Suite 1300,
Atlanta, GA 30305. THIS WARRANTY IS ISSUED
AND ACCEPTED IN LIEU OF ALL OTHER EXPRESS
WARRANTIES AND EXPRESSLY EXCLUDES
LIABILITY FOR CONSEQUENTIAL DAMAGES.
Refer to www.highperfomancecement.com for
the most current technical data, MSDS, and guide
specifications.