OCTOCRETE U
A Polymer Modified Concrete Repair Mortar for Underwater Use
Product Data Sheet

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Description:

OCTOCRETE U is a single component, ready to use with water, quick set, high strength polymer modified cementitious patching mortar for horizontal and vertical repair of concrete and masonry under water.

Advantages:

  • Superior physical properties to conventional Portland cement mortars

  • Excellent adhesion *

  • Coefficient of expansion similar to concrete

  • Excellent resistance to de-icing chemicals

  • Excellent workability results in labor savings

  • Hangs up in thick layers to speed vertical and overhead repairs *

  • Repaired areas will breathe

  • Excellent freeze-thaw resistance

  • Sets in 6 minutes at 70°F (21°C)

* For extra bond strength, add one gallon (3.8 L) of IPA Systems OCTOBLEN (Bonding Agent) per 50 pound (22.7 kg) bag in place of one gallon (3.8 L) of mixing water.

 

TECHNICAL DATA

Packaging: 

50 lb. Bag (22.7 kg), 55 gallon drum (208.2 L)

Yield:  A 50 lb. (22.7 kg) bag of OCTOCRETE U yields about 0.5 cubic feet (.01 cubic meter) of material
Shelf Life: 

One year in unopened bag.  Requires dry storage

Color: Concrete Gray
Initial Set Time:  OCTOCRETE U sets in 5 to 6 minutes at 70ºF (21ºC)
Sculpture Time: For an additional 20 minutes after initial set, OCTOCRETE U can be formed (shaved) by the edge of a trowel.  The finisher can shape (shave) the contour during this period of time.

 

Underwater Application:

Surface to be repaired must be sound and all loose material must be removed.  OCTOCRETE U is designed to set in 6 minutes and must be placed in area to be patched within 6 minutes after mixing.  Mix ratio is one 50 pound (22.7 kg) bag per 5 quarts (4.7 L) of water.  Mix only as much material as can easily be used in 6 minutes.  Mix powder with water and wait 2 to 4 minutes before placing underwater according to the depth of patch area below the water surface.  Pack all material quickly and firmly into patch area making sure to displace all trapped air and water out of patch.  Once OCTOCRETE U sets, no deterioration will occur.

Clean-up:

Cleanup must be done immediately due to the high bonding characteristics of OCTOCRETE U.  Clean equipment with water.

 

Physical Properties:

Compressive Strength  ASTM C-109

1 day

7 day

28 day

Exceeds 2800 psi (19.3 MPa)

Exceeds 4600 psi (31.7 MPa)

Exceeds 5800 psi (40 MPa)

Flexural Strength 

ASTM C 348

1 day

7 day

28 day

600 psi (4.1 MPa)

750 psi (5.2 MPa)

900 psi (6.2 MPa)

ASTM C 78

28 day 

1500 psi (10.3 MPa)

Slant Shear Bond Strength  ASTM C 882

         (No epoxy used)

7 day

28 day

1190 psi (8.2 MPa)

1640 psi (11.3 MPa)

Composition Characteristics: Contains no calcium chloride, added gypsum, or metals susceptible to corrosion, lime or high alumina cements
Heat of Hydration: No appreciable heat of hydration

 

Limitations:

Do not install OCTOCRETE U unless substrate, water and air temperatures are at least 40ºF (4.4ºC) and rising for the next 48 hours.  Do not apply to a frozen surface.  DO NOT USE SOLVENT BASED CURING COMPOUNDS.  Care must be taken to insure proper concrete practices are used in preparation, mixing, placing and curing.

 

CAUTION – FOR INDUSTRIAL USE ONLY:

Freshly mixed cement, mortar, grout, or concrete may cause minor skin irritation.  Avoid direct contact where possible and wash exposed skin areas promptly with water.  If any of the cementitious material get into the eyes, rinse immediately and repeatedly with water.  If irritation persists, obtain medical assistance.

WARRANTY

This product is warranted and guaranteed to be of good quality.  Manufacturer, as its sole and exclusive liability hereunder, will replace material if proved defective.  THIS WARRANTY AND GUARANTEE ARE EXPRESSLY IN LIEU OF ALL OTHERS, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, AND MAY NOT BE EXTENDED BY REPRESENTATIVES OR ANY PERSONS, WRITTEN SALES INFORMATION, OR DRAWINGS IN ANY MANNER WHATSOEVER.

While the manufacturer recommends uses for the product based on tests believed reliable, no warranties, express or implied, or guarantee can be given as to particular methods of use or application, nor can performance be warranted, expressly or impliedly, or guaranteed under special conditions.  Distributors, salespersons or company representatives are NOT authorized to extend or vary any warranties or guarantees beyond those outlined herein nor may the manufacturer’s or seller’s limitation of liability be waived or altered in any manner whatsoever.




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