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NO. 379
SEALTIGHT®
MEADOW-CRETE® FNP
ONE COMPONENT, FLOWABLE, FORM & POUR STRUCTURAL
REPAIR MORTAR
DESCRIPTION
One component, flowable, shrinkage-compensated,
corrosion inhibitor enhanced, repair mortar for structural applications.
MEADOW-CRETE FNP can be formed and poured or formed and pumped, utilizing a
suitable grout pump.
USES
The product is ideal for the reinstatement or
repair of beams, columns, balcony edges or for partial depth or full depth
placement. MEADOW-CRETE FNP is suitable for industrial, residential and civil
engineering applications.
FEATURES / BENEFITS
 | Migrating Corrosion Inhibitor Enhanced / Protects
Localized and Adjacent Reinforcing Steel
| Very Flowable / Can be Poured or Pumped
| May be Extended / Lower in Cost Placement
| Low Permeability / Protects Embedded Reinforcing Steel
| Shrinkage Compensated / Added Dynamic Stability
| Highly Engineered / Non-segregating / Re-dispersible |
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YIELD
50 LB. (22.7 kg) bag
Yield: 0.39 Cu. Ft.
Yields listed above are based on 3.50 quarts (3.31 liters)
of water per 50 lb. (22.7 kg.) bag and will vary based on substrate profile,
aggregate, variations in mix water amounts and waste/rebound. Field trials
should be performed to determine yields based on job-site conditions.
SHELF LIFE
12 months when stored on pallets in a dry, cool area.
TECHNICAL DATA
The following physical properties were determined
using the maximum liquid (SEALTIGHT ACRY-LOK) to powder ratio of 1-gallon
(3.78L) per 50 lb. bag at 75ºF (23.5ºC)
| Set Time Per ASTM C 191 |
| Initial |
4 hours |
| Final |
6 hours |
| Working Time 30 mins. |
| Flow Per ASTM C 191¹
Flowable |
|
Compressive Strength
Per ASTM C 109¹ |
| at 1 day |
2,250 PSI (15.5MPa) |
| at 7 days |
7,500 PSI (52 MPa) |
| at 28 days |
8,000 PSI (55 MPa) |
|
| Bond Strength Per ASTM C 882¹² |
| @ 1 day |
650 psi (4.5MPa) |
| @ 28 days |
3400 psi (27 MPa) |
Modulus of Elasticity
Per ASTM C 469¹ |
4.13 x 106
psi (28.5 GPa) |
| Length Change Per ASTM C 157¹ |
| Drying Shrinkage @28
days |
-0.040% (400 µ strain) |
| Length Change Per ASTM C 157¹
(Modified) |
| Specimens stored at
73+/-3 F & 50+/- 4% RH, continuously |
| Drying Shrinkage @28
days |
-0.091% (910 µ strain) |
| Flexural Strength Per ASTM
348¹ |
| @ 1 day |
650 psi (4.5 Mpa) |
| @ 28 days |
1,850 psi (13 Mpa) |
| Freeze-Thaw Resistance Per
ASTM C 666 (Procedure A)¹ |
| At 300 Cycles |
97% RDM³ |
|
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 RDM - Relative Dynamic Modulus |
FOR BEST PERFORMANCE
| MEADOW-PATCH FNP is recommended for concrete repairs
only.
| Do not use as an underlayment or overlay.
| Do not apply below 40°F (4°C) or above 90°F (32°C)
or when rain is imminent.
| Protect from freezing for a minimum of 24 hours.
| Do not bridge moving cracks. Extend existing control
and expansion joints through MEADOW-PATCH FNP.
| For large areas with no control, expansion or
construction joints, refer to ACI guidelines.
| Do not add any admixtures.
| Exceeding liquid requirements shall result in reduced
physical properties.
| Realize that set time will decrease as the product,
air, substrate and mixing liquid temperature increases and will be increased
as the temperature decreases.
| Repair areas should be saw cut and slightly undercut to
a minimum depth of a 1/2" (12 mm). Do not featheredge.
| Protect from conditions that may cause early water
loss; windy, low humidity, high temperature and direct sunlight. Early water
loss is exasperated in thin applications.
| Realize that the use of extender aggregate will alter
physical properties.
| Failure to follow industry standard practices may
result in decreased material performance.
| Proper application is the responsibility of the user.
Field visits by W.R. MEADOWS personnel are for the purpose of making
technical recommendations only, and are not to supervise or provide quality
control on the job-site. |
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SURFACE PREPARATION
Perform surface preparation in accordance with ICRI Technical Guidelines No.
03730. 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
bond. Prepared surface must be dust-free and have a sufficient profile to ensure
adequate mechanical lock. Saw cut perimeter of repair zone to a depth of
¼" to avoid featheredging.
Completely expose all reinforcing steel, ensuring a
minimum clearance of ¾" behind reinforcing steel. Perform reinforcing
steel preparation in accordance with ICRI Technical Guidelines No. 03730.
Pre-soak repair zone prior to application of MEADOW-CRETE
FNP to a saturated, surface dry (SSD) condition and free of standing water.
MIXING
Mix only complete bags. Using a mortar type mixer, pour 3.00 quarts (2.84
liters) per 50 lb. (22.7 kg) bag. Slowly add MEADOW-CRETE FNP while mixing.
Adjust mix consistency using up to an additional 0.25 Quarts (0.24 L) of water.
Mix for 3-5 minutes or until homogenous and lump-free. Do not over mix.
FORMING
Support formwork as to ensure a tight seal with repair zone. Formwork should be
rigid, structurally stable, sealed and coated with a suitable release agent
(such as SEALTIGHT DUOGARD). Forming should be accomplished in accordance with
ACI 347-88. Proper vent & drainage ports should be installed as required to
ensure no entrap of air voids. Pre-soak repair zone for 24 hrs. prior to
placement to a saturated, surface dry (SSD) condition.
PLACEMENT
Pour or pump properly mixed product immediately following proper mixing to
ensure adequate flow. Pumping should be accomplished in accordance with ACI
304-R-85. Do not re-temper or over-work product. Follow ACI 305-R89
"Standard on Hot Weather Concreting" or ACI 306-R88 "Standard on
Cold Weather Concreting," when applicable.
CURING
Cure in accordance with ACI 308. Cure MEADOW-CRETE FNP immediately following
removal of forms using a suitable water-based curing compound such as SEALTIGHT
2250-WHITE or SEALTIGHT 1130-CLEAR.
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 November, 2001.
W. R. MEADOWS, INC. warrants that, at the time and place
we make shipment, our materials will be of good quality and will conform with
our published specifications in force on the date of acceptance of the order.
THE FOREGOING WARRANTY SHALL BE EXCLUSIVE AND IN LIEU OF ANY OTHER WARRANTY,
EXPRESS OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE AND ALL OTHER WARRANTIES OTHERWISE ARISING BY
OPERATION OF LAW, COURSE OF DEALING, CUSTOM OF TRADE OR OTHERWISE. As the
exclusive remedy for breach of this Warranty, we will replace defective
materials, provided, however, that the buyer examine the materials when received
and promptly notify us in writing of any defect before the materials are used or
incorporated into a structure. Three (3) months after W. R. MEADOWS, INC. has
shipped the materials, all our Warranty and other duties with respect to the
quality of the materials delivered shall conclusively be presumed to have been
satisfied, all liability therefore terminates, and no action for breach of any
such duties may thereafter be commenced. W. R. MEADOWS, INC. shall in no event
be liable for consequential damages. Unless otherwise agreed to in writing, no
warranty is made with respect to materials not manufactured by W. R. MEADOWS,
INC. We cannot warranty or in any way guarantee any particular method of use or
application of the performance of materials under any particular condition.
Neither this Warranty nor our liability may be extended or amended by our
salesmen, distributors or representatives, or by our distributor's
representatives, or by any sales information or drawings.
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