Technical Specifications

CONCRETE REPAIR MORTAR
2025 Centre Pointe Blvd, Suite 300, Mendota Heights, MN 55120 | P 651.688.9116 | F 651.688.9164 | www.tccmaterials.com
Fast-setting, high-strength, sculptable concrete repair
© TCC Materials • October 2017 • Version 2.0
PRODUCT DESCRIPTION
Rapid Patch
®
Concrete Repair Mortar is a
fast-setting, high-performance, multi-use
blend of hydraulic cement, polymers, fine
aggregates, and special additives used for
concrete repair and new construction
where high early strength, excellent
durability, and low shrinkage is required.
Mix with water for applications from ½ in.
minimum to 6 in. maximum thickness
(1.3-15 cm).
WHEN/WHERE TO USE
• Interior or exterior
• Vertical, overhead, and horizontal
• Residential and commercial
• New construction and repairs of
concrete slabs, curbs, steps, driveways,
sidewalks, and stucco
• Structural concrete construction and
repairs
• When high early strength and fast
setting is required
ADVANTAGES
• Fast-setting, initial set in 15 minutes
• High early strength, reaches structural
strength in 1 hour
• Air-entrained
• Excellent freeze/thaw and salt
resistance properties
• Non-metallic, no chlorides
• Trowelable from ½ in. to 6 in.
• Add water, mix, and use
• Excellent low-shrink properties
• Durable in critical applications including
wet environments
• Polymer-modified for increased
adhesion and flexural strength
• Meets ASTM C928, and C387
AVAILABLE SIZE
• 20 lb. (9 kg) bag (BOM #129460)
• 50 lb. (22.7 kg) bag (BOM #129470)
COVERAGE
• 1 sq. ft. per 1 lb. at ⅛ in. thickness
(0.09 m
2
per 0.45 kg at 3 mm)
• Each 20 lb. (9 kg) bag yields
approximately 0.20 cu. ft. (0.0057 m
3
)
• Each 50 lb. (22.7 kg) bag yields
approximately 0.50 cu. ft. (0.014 m
3
)
TECHNICAL DATA
PREPARATION
Read all directions before starting work.
Proper surface preparation is crucial to
achieving a successful application. All
surfaces must be structurally sound.
Remove all dust, acid, waxes, sealers, old
adhesive residue, curing compounds, oil,
paint, or any other foreign materials that
could inhibit bond. Condition all materials
to 65°F-75°F (18°C-24°C) 24 hours prior
to installation. Prior to material placement,
dampen the area to be repaired with clean
water to a saturated-surface-dry (SSD)
condition. Organize mixing and application
to be as close to the work area as
possible to maximize the working time
with this accelerated setting material. Any
rust on exposed rods should be removed
by mechanical methods, wire brushing,
sandblasting, or scraping.
MIXING
Mix only the amount that can be applied in
15 minutes. The use of a ½” heavy-duty
drill (300 RPM or less) with paddle mixer
or a mortar mixer is recommended,
although hand-mixing smaller amounts
can also be used. Avoid high speed
mechanical mixing which can entrap air
into the mixture. Choose the mixer size
most appropriate for the size of the job to
be done. Allow at least 1 cu. ft. (28 L) of
mixer capacity for every 50 lb. (22.7 kg)
bag of product.
1. In a clean container, with clean tools,
mix with clean, cool water only, no
bonding additive is needed. Always stir
powder into liquid to avoid lumps. Add
water to the mixing container first, then
slowly add the powder while the mixer
is running.
2. Mix to a uniform, lump-free consistency,
typically 1-3 minutes. If additional water
is needed for your application, add in
small doses. Material becomes stiff in
approximately 10-15 minutes, so mix
only what you plan on using in this time
period.
3. Do not retemper, exceed water limits, or
add any materials other than clean
potable water. Clean mixer often to
prevent buildup of material. Elevated
temperatures will shorten the working
time. Lower temperatures will delay set
times. The use of cold water at high
temperatures or warm water at low
temperatures will aid in adjusting the
mix temperature.
APPLICATION
Ideal application conditions are when air,
material, and substrate temperatures are
between 45°F-90°F (7°C-32°C) within 24
hours of application and placement, and
rain is not forecast 24 hours after. Set
times will vary in extremely hot or cold
conditions. Do not apply over concrete
cured less than 28 days or surfaces that
are frozen or contain frost.
1. Apply from ½ in. minimum to 6 in.
maximum thickness (1.3-15 cm). For
overhead repairs, use lifts of 2 in. (5
cm) maximum to prevent material from
sluffing off, unless forms are provided
for support. For vehicle traffic or heavy
loads, the minimum thickness will vary.
Helpful Items:
Typical Values • Rapid Patch
Concrete Repair Mortar
Initial Set Time
≤ 15 minutes
Final Set Time
≤ 35 minutes
Compressive Strength ASTM C109
1 Hour
≥ 2,500 psi (17.2 MPa)
3 Hours
≥ 4,000 psi (27.6 MPa)
24 Hours
≥ 5,000 psi (34.6 MPa)
7 Days
≥ 5,500 psi (37.9 MPa)
28 Days
≥ 6,500 psi (44.8 MPa)
Slant Shear Bond ASTM C882
24 Hours
1,200 psi (8.27 MPa)
28 Days
2,200 psi (15.2 MPa)
Splitting Tensile ASTM C496
7 Days
450 psi (3.1 MPa)
28 Days
550 psi (3.79 MPa)
Flexural Strength ASTM C78
7 Days
500 psi (3.45 MPa)
28 Days
550 psi (3.79 MPa)
Length Change ASTM C157
28 Days (air)
-0.04
28 Days (in water)
0.02
Approximate Water Requirements
20 lb. bag
2-4 pint (1-1.9 L)
Do not exceed 4 pt..(1.9 L)
50 lb. bag
2.75-4.5 qt. (2.6-4.3 L)
Do not exceed 4.5 qt. (4.3 L)