High Strength Precision Grout

Ready-to-use, flowable construction grout
Shaveable & Formable Finishing Cement for Overhead Applications

ProSpec High Strength Precision Grout is a specially formulated, ready-for-use, high strength, and flowable grout for repair or finishing of concrete applications. Common uses include precision grouting of machinery base sole plates, rolling mills, generators, anchor bolts, transfer lines, paper mills, and structural grouting of precast columns, crane rails, bridge seats, dowels, and more.

Features & Benefits
  • Interior/Exterior
  • Can be pumped into areas inaccessible by conventional grouting methods
  • High fluidity, excellent working time & early strength build
  • High initial and ultimate flexural and compressive strengths
  • Non-porous, non-shrink, non-metallic, non-staining, & non-corrosive
  • Conforms to CRD-C621 Corps of Engineers Specification for Non-Shrink Grout and ASTM C 1107
PLASTIC FLOWABLE FLUID
Mixing Water (per 50 lbs) 3.7 qt 4.0 qt 4.5 qt
Flow 120-125% 125-140% 20-30 sec
ASTM C191 – SETTING TIME OF HYDRAULIC CEMENT
Initial Set 5 hrs 6 hrs 6.5 hrs
Final Set 5.75 hrs 7 hrs 7.5 hrs
ASTM C109 – COMPRESSIVE STRENGTH
24 hrs 6,000 psi 5,500 psi 4,000 psi
3 days 7,200 psi 7,000 psi 6,100 psi
7 days 8,500 psi 8,500 psi 7,500 psi
28 days 10,500 psi 10,000 psi 9,000 psi
ASTM C1090 – EXPANSION OF HYDRAULIC CEMENT GROUT
24 hrs +0.04% +0.01% 0.00%
3 days +0.04% +0.02% 0.00%
28 days +0.06% +0.03% 0.00%
ASTM C827 – EXPANSION OF CEMENTITIOUS MIXTURES
Final Set Average 0.55% 1.49% 1.23%
DO NOT: 1) overwater, 2) use in applications of high dynamic loading, 3) allow portland cement-based materials to come in direct contact with uncoated aluminum, 3) retemper grout by adding water, use as a floor topping or in large areas with an exposed shoulder around base plates, 4) add accelerators, retarders, plasticizer or other additives, apply in application thicknesses <1” (25 mm), and 5) mix more grout than can be placed in 20 minutes.
  1. Fluid working time 30 minutes at 70°F (21°C).
  2. Agitate material as necessary within its working time to maintain workability.
  3. Shut down nearby machinery prior to and during placement.
  4. Provide vent holes where necessary.
  5. Pour and place grout from one side of form to eliminate air voids.
  6. A vibrator, rod, chain or trowel may be used to assist in consolidating the grout and eliminating air voids. Use a mixer large enough to permit continuous placement before any part of the grout has set.
  7. Confine grout to ensure minimum surface exposure. Avoid vibration for 24 hours after placement.
  8. For placements greater than 4” (76 mm), extend the grout with 25 lb (11.3 kg) of washed clean SSD
    (saturated surface dry) 3/8” (9 mm) graded aggregate per 50 lb (22.7 kg) bag.
  9. After placement, immediately trim the surfaces and edges with a trowel.
  10. Minimum application thickness is 1” (25 mm).
  11. Forms may be removed after grout has hardened to an initial set.

Store in the original, unopened container under cool, dry conditions for up to 12 months from the date of manufacture. Keep out of direct sunlight. Prior to installation, materials should be stored between 40°F (4°C) and 80°F (27°C) for 24 hours.

AVAILABILITY

50 lb bag

APPLICATIONS

Machinery Bases
Sole Plates
Rolling Mills
Generators
Anchor Bolts
Transfer Lines
Precast Columns
Crane Rails
Bridge Seats
+ More

Which grout is right for you?

High Strength
Precision Grout

  • Meets CRD-621 & ASTM 1107
  • Horizontal application
  • Structural
  • Rapid Hardening
  • Non-shrink
  • Non-metallic
  • 1-4" thickness
  • 15 min worktime (fluid)
  • Pumpable
  • Plastic compressive strength (1 day / 28 days)
    6,000 psi / 10,500 psi
  • Flowable compressive strength (1 day / 28 days)
    5,500 psi / 10,000 psi
  • Fluid compressive strength (1 day / 28 days)
    4,000 psi / 9,000 psi

Precast Mortar
Grout

  • Meets CRD-621 & ASTM 1107
  • Vertical & overhead applications
  • Structural
  • Rapid Hardening
  • Non-shrink
  • Non-metallic
  • 1/2-3" thickness
  • 30 min worktime (plastic)
  • Pumpable
  • Plastic compressive strength (1 day / 28 days)
    2,700 psi / 7,250 psi
  • Flowable compressive strength (1 day / 28 days)
    N/A / N/A
  • Fluid compressive strength (1 day / 28 days)
    N/A / N/A

High Strength Precision Grout Requests

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Other Products

*All statements and technical information are based on tests and/or data which MarMac Manufacturing deems reliable, however, MarMac does not warrant or guarantee the accuracy or completeness of such information. Please read further manufacturer liability and warranty information.

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