POSTCRETE GROUT/WS® Hydraulic Cement FAQs, Cement Patch | UNIQUE Paving

Answers to frequently asked questions about POSTCRETE GROUT/WS® Hydraulic Cement .

Here is where you can learn all about UNIQUE’s POSTCRETE GROUT/WS® Hydraulic Cement patches: What is POSTCRETE GROUT/WS® Hydraulic Cement and how to use it? Questions about packaging, shelf life, preferred applications, placement limitations, curing process, and much more. These are the answers to your questions.

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What type of product is POSTCRETE GROUT/WS® Hydraulic Cement?

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UNIQUE POSTCRETE GROUT/WS® Hydraulic Cement is hydraulic cement blended with proprietary ingredients.

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What are the preferred applications for POSTCRETE GROUT/WS® Hydraulic Cement?

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Use UNIQUE POSTCRETE GROUT/WS® Hydraulic Cement can be used to instantly stop running water or seepage through holes or cracks in concrete or masonry walls, swimming pools, water storage facilities, tunnels, fountains, water channels, ponds and piers. Use to patch mortar joints, cracks and holes in masonry walls.

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What are the placement limitations for UNIQUE POSTCRETE GROUT/WS® Hydraulic Cement?

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Do not use UNIQUE POSTCRETE GROUT/WS® Hydraulic Cement applications on unsound concrete or like surfaces. Mix only enough for immediate use. POSTCRETE GROUT/WS® Hydraulic Cement sets in 3-5 minutes and cannot be reworked once it has set.

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What is the best way to apply UNIQUE POSTCRETE GROUT/WS® Hydraulic Cement when making a dry repair?

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For dry repair applications, make sure surface is Saturated Surface Dry (SSD) before applying the material.

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What is the best way to apply UNIQUE POSTCRETE GROUT/WS® Hydraulic Cement when making a wet repair that is not under pressure?

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To stop surface leaks not under pressure start at the top of the crack and work your way down pressing the UNIQUE POSTCRETE GROUT/WS® Hydraulic Cement into place. Remove excess material to form a uniform surface.

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What is the best way to apply UNIQUE POSTCRETE GROUT/WS® Hydraulic Cement when making a wet repair that is under pressure?

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To stop leaks under pressure or under water start at the top of the crack working your way down pressing and holding the UNIQUE POSTCRETE GROUT/WS® Hydraulic Cement into place. Maintain constant pressure on the applied material until final set has been achieved. Remove excess material to form a uniform surface.

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What is the set time for POSTCRETE GROUT/WS® Hydraulic Cement?

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3-5 minutes.

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What is the curing time for POSTCRETE GROUT/WS® Hydraulic Cement?

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20 minutes.

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Do I need to add any curing agents or other additives to UNIQUE’s POSTCRETE GROUT/WS® Hydraulic Cement?

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All you need to do is just add UNIQUE POSTCRETE GROUT/WS® Hydraulic Cement to the pre-measured water.

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How can I delay or speed up the set time for UNIQUE POSTCRETE GROUT/WS® Hydraulic Cement?

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You can extend the cure time of UNIQUE POSTCRETE GROUT/WS® Hydraulic Cement by using cold or ice cold water and speed up the set time by using warm or hot water.

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What is the best way to cure the POSTCRETE GROUT/WS® Hydraulic Cement repair?

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Damp cure all POSTCRETE GROUT/WS® Hydraulic Cement installations. Begin curing as soon as the surface has lost its moist sheen. Keep exposed surfaces wet for a minimum of 1 hour. When experiencing extended setting times, due to cold temperature or the use of retarder, longer cure times may be required. The objective of damp curing shall be to maintain the continuously wet surface until the product has achieved sufficient strength.

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Do I need anything special to clean my tools or other items?

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No, UNIQUE® concrete products are water soluble prior to drying. Clean container and tools with water prior to the material drying.

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What is the coverage rate of POSTCRETE GROUT/WS® Hydraulic Cement?

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One pound of UNIQUE POSTCRETE GROUT/WS® Hydraulic Cement mixed with water fills approximately 17 cubic in and will repair a crack 3/4″ x 3/4″ x 30″ long.

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What type of packaging is available for UNIQUE POSTCRETE GROUT/WS® Hydraulic Cement?

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POSTCRETE GROUT/WS® Hydraulic Cement is available in 50, 20 and 10 pound plastic pails and in 50 lb. poly lined paper bags by special
order.

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What is the shelf life for a pail of POSTCRETE GROUT/WS® Hydraulic Cement?

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Two years if stored in an unopened pail according to ACI Guidelines.

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Features and Benefits of POSTCRETE GROUT/WS® Hydraulic Cement

  • Multi Use – Interior or exterior use and can be used vertically and horizontally
  • Excellent Adhesion – Bonds without a bonding agent, high early strength
  • Durable – Freeze-thaw resistant, Sulfate resistant, volume stable
  • User Friendly – Self-curing, easy clean up with water

UNIQUE® is a registered trademark of UNIQUE Paving Materials Corp.

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About the author

Becky Dunlavey

With over 10 years of experience, I wear many hats at UNIQUE Paving Materials. In addition to managing our multimedia marketing efforts and coordinating trade shows and regional events, working with the sales and customer service departments has allowed me to gain a multifaceted knowledge of the industry.