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HYDRAULIC CEMENT  
  
Description
Unitex HYDRAULIC CEMENT is a blend of hydraulic cement and admixtures used for plugging and stopping water or fluid leaks in concrete structures and masonry walls.

When mixed to a thick consistency and hand formed, HYDRAULIC CEMENT will set in 3-5 minutes to seal out water for the life of the structure. HYDRAULIC CEMENT is a non-corrosive, non-rusting and non-shrink material.

  

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Features
  • Contains no gypsum
  • Non-metallic – will not rust or corrode
  • Durable – provides lifetime repairs
  • Vertical and overhead applications
  • Resistant – withstands freeze/thaw cycles
  • Fast-setting – sets in 3-5 minutes
  • Performance – instantly stops seepage
  • Consistent – strict quality control testing and standards
  • Non-corrosive, non-metallic, non-shrink
  • Pre-blended – just add water
Usage
  • Dams, culverts
  • Basement walls
  • Swimming pools
  • Manholes, cisterns
  • Water tanks
  • Underground electric vaults
  • Elevator pits
  • Mines, tunnels
  • Sewer, water pipes
  • Any situation requiring a fast, durable, long-lasting repair

Physical Properties

Compressive Strength (ASTM C-109*)
1 DAY 3 DAYS 7 DAYS 28 DAYS
4,200 psi 4,300 psi 4,500 psi 6,100 psi
28.94 MPa 29.63 MPa 31.00 MPa 42.03 MPa
*Notes: 73°F (22.8°C)
   55% Humidity
   5 qt. water/50 lb. material

Rate of Set (ASTM C-266)
INITIAL FINAL
3 min. 5 min.

Yield

0.43 cu. ft./50 lb. pail (0.012 cu. m/22.7 kg. pail) when mixed with 4 qt. of water

Packaging

50 lb. pail (22.7 kg)

  
Application
SURFACE PREPARATION: All surfaces in contact with HYDRAULIC CEMENT shall be free of dirt, oil, grease, laitance, and other contaminants. Best results will be obtained by undercutting the area to be filled. Small cracks should be enlarged to maximize bonding area. The area to be repaired must be saturated with water before placement (SSDÐsaturated surface dry). If possible, remove any standing water prior to repair. Maintain contact areas between 40°F (7°C) and 90°F (32°C) prior to repair, and during initial curing period. For hot and cold weather patching applications, refer to ACI 305 Hot Weather Conditions or ACI 306 Cold Weather Conditions.

MIXING: For best results, add HYDRAULIC CEMENT to clean, potable water in a small mixing vessel. Mix to a stiff, putty consistency and mix only enough material that can be placed immediately.
PLACING: For general repairs, force material into the area to be repaired by gloved hand or with a trowel. Fill to the full depth and trowel to final level without overworking the material. To stop running water, mold material by gloved hand into a ball or wedge shape and hold HYDRAULIC CEMENT in gloved hand or on a trowel until material becomes warm. Press firmly into opening and maintain pressure on the patch until material stops the leak or approximately 3-5 minutes. Trowel material into final shape without damaging plug. For sealing cracks in walls or floors, force Hydraulic Cement into the crack by starting at the area with the least amount of pressure. Hold into place and maintain pressure until the material has hardened. HYDRAULIC CEMENT will not permanently repair cracks and joints subjected to thermal or structural movement.

STORAGE: Normal cement storage and handling practices should be observed. Store in a cool, dry place. Read and follow application information, precautions, and Material Safety Data Sheet.
Limitations
  • Do not apply when temperature is below 40°F or when the temperature is expected to fall below 40°F within 48 hours.
  • Do not apply over surfaces that are frozen or contain frost.
  • The wearing of protective gloves is recommended.
  • Mix only enough material as can be used immediately.
  • Do not apply over any active faults or cracks in the substrate without addressing any movement that may occur.
  
Cautions
  • Contains portland cement (CAS# 65991-15-1). Do not allow contact with eyes or skin.
  • Contains concrete aggregates, sand/gravel (CAS# 14808-60-7).
  • Avoid breathing dust. Respirable silica may cause serious lung problems.
  • There is limited evidence silica is a carcinogen. The use of gloves, goggles and, where appropriate, dust masks and other protective clothing is recommended.
 
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