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VERY RAPID-HARDENING HORIZONTAL
REPAIR MORTAR
DESCRIPTION
FUTURA-15 is a one component,
cementitious, very rapid-hardening structural repair mortar designed
for horizontal applications. FUTURA-15 is composed of selected
cements, graded sands and chemical additives. This proprietary
blend produces a very rapid-setting structural repair mortar even
in cold weather conditions without the aid of chloride or gypsum
based accelerators.
USES
FUTURA-15 is ideal for structural patching of concrete
pavements, bridges, parking decks, airport runways and taxiways.
FUTURA-15 is also designed for repair of industrial floors, expansion
joint nosings, sidewalks and general commercial applications,
along with grouting keyways.
FEATURES AND BENEFITS
SPECIFICATIONS
Conforms to ASTM C 928-99a "Packaged,
Dry, Rapid Hardening Cementitious Materials for Concrete Repair,"
Classification R3, Very Rapid Hardening.
SHELF LIFE
12 months when stored on pallets
in a dry, cool area.
YIELD
Yields listed above are based on 5.25 pints (2.48 L) of water per 50-lb. bag and will vary based on substrate profile, mix ratios, aggregate type and waste. Field trials should be performed to determine yields based on aggregate type.
TECHNICAL DATA*
The following physical properties
were determined using the maximum water to powder ratio of 5.25
pints (2.48 L) per 50 lb. (22.7 kg) of FUTURA-15 at 75ºF
(23.5ºC)
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*All technical
data is typical information, but may vary due to testing methods,
conditions and procedures. ¹ Independent reports are available upon request. ² Modified – No bonding agent used. Pre-dampening of properly prepared substrate. ³ Cured after 3 hours at 73+/-3ºF and 50+/-4% RH 4 RDM - Relative Dynamic Modulus |
FOR BEST PERFORMANCE
SURFACE PREPARATION
Perform surface preparation
in accordance with ICRI Technical Guidelines No. 03730, "Guide
for Surface Preparation for the Repair of Deteriorated Concrete
Resulting from Reinforcing Steel Corrosion." Mechanically
abrade existing substrate to remove all unsound concrete, but
do not use excessive force, which may cause micro-fracturing.
Substrate must be structurally sound and free of any contaminants
that will adversely affect the bond. Prepared substrate surface
must have a sufficient profile of ¼" to ensure adequate
mechanical lock. Saw cut perimeter of repair zone to a depth of
½" to avoid feather edging.
Completely expose all reinforcing steel,
ensuring a minimum clearance of ¾" behind reinforcing
steel. Abrade entire circumference of steel to a white metal finish.
Perform reinforcing steel preparation in accordance with ICRI
Technical Guidelines No. 03730. Pre-dampen concrete substrate
to a saturated surface dry (SSD) condition. Remove all standing
water and puddles.
MIXING
Mix only complete bags. Using a suitable sized mortar type mixer,
add 4.75-5.25 pints (2.24-2.48L) of clean water to the mixer per
50 lbs. (22.7 kg) bag of FUTURA-15. If extension is required,
add appropriate amount of aggregate to mixer prior to the addition
of FUTURA-15. Mix for 3-5 minutes until homogenous and lump-free.
Do not mix more product than can be mixed, placed and finished
in 15 minutes at 70°F (21°C). Do not over-mix.
AGGREGATE EXTENSION
For repairs greater than 2" (51mm) in depth; extend FUTURA-15
with 12.5 lbs. (5.68 kg) of aggregate. For repairs greater than
4" (102 mm) in depth extend FUTURA-15 with 25 lbs. (11.36
kg) of aggregate. The aggregate must be a minimum of 3/8"
(9mm) size, saturated but surface dry condition, clean pea gravel.
Always add the aggregate to the mixing water prior to the addition
of FUTURA-15. For configurations requiring greater than 50% extension
or larger areas, contact your local W. R. MEADOWS representative.
Proper stress relief must be given for large patch areas.
PLACEMENT
Apply FUTURA-15 by trowel or screed. Compact FUTURA-15 well against
the prepared substrate prior to bulk placement. Ensure complete
encapsulation of reinforcing steel. Finish surface by screeding
FUTURA-15 to a level surface. For a rough finish, a broom or burlap
bag is suitable. Do not re-temper or overwork.
Application Range: 20 to 85°F (-7 to
29°C)
Follow ACI 305-R89 "Standard on Hot Weather Concreting"
or ACI 306-R88 "Standard on Cold Weather Concreting,"
when applicable.
May be top-coated with an epoxy-based overlay after 4 hours. For most systems, wait a minimum of 24 hours prior to topcoating. Consult appropriate installation guide for the product to be overlaid.
CURING
Cure FUTURA-15 immediately following application using a suitable
curing compound from W. R. MEADOWS, or in accordance with ACI
308. W. R. MEADOWS recommends 2250-WHITE or 1130-CLEAR for curing.
On large patches, cure repair zone as work proceeds. Wet curing
for a minimum of one day, followed by a suitable curing compound,
helps minimize shrinkage.
SAFETY AND TOXICITY
Avoid inhalation of dust. Avoid direct contact with this product.
Utilize gloves and safety glasses to minimize direct contact.
If contact occurs, wash affected areas with mild soap and water.
Keep product out of reach of children. FOR INDUSTRIAL USE ONLY.
Refer to Material Safety Data Sheet
for complete health and safety information.
This material last updated July, 2004.
