Cemgrout NS
Non-shrink High Strength Structural Grout

Conforms to BS 4451, BS 4450: Part 3, BS 6319: Part 4, CRD-C621, ASTM C939:93 ASTM C940: 89, ASTM C942: 91 & ASTM C953: 87

PRODUCT DESCRIPTION

Cemgrout NS is a ready-to-use, non-shrink, cementitious compound that is specially blended using Portland cement, highly graded filler, expanding agent and plasticising additives. It is non-corrosive and is free of chlorides and nitrates.

Cemgrout NS is designed to exhibit different consistencies for different application requirements by simply adjusting the water/ Cemgrout NS ratio.

Cemgrout NS is specially formulated for use in the following areas:

  • repair of structural concrete by patching or pressure grouting methods;
  • as a levelling bed for machinery and equipment stanchion;
  • grouting of semi-precast construction joints; and
  • grouting of structure stanchion base plate.

TYPICAL PROPERTIES

  1. Ease of preparation as Cemgrout NS requires only the addition of a predetermined amount of water.
  2. Reduces site variations and errors as Cemgrout NS
    is pre-muted.
  3. Possesses high compressive strength.
  4. Possesses high early strength even at fluid (pumpable) consistency.
  5.  Possesses non-shrinking property under restraint and is free of bleeding and segregation.
  6. Possesses excellent flow characteristics at
    pumpable and flowable consistencies even in
    difficult access areas.
  7. Possesses high cohesion at stiff consistency.
  8. Possesses high thixotropicity at plastic consistency.
  9. Is free of chlorides and metallic elements.
  10. Possesses good weatherproofing property.

APPLICATION PROCEDURES

Surface Pre on

  • All substrate surfaces should be free of loose, flaky materials, oil, grease and other contaminants.
  • All substrate surfaces should be clean and pre-wetted with clean water.
  • All free surface water should be removed before the application of Cemgrout NS.
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Preparation of Cemgrout NS:

  • Fill the appropriate amount of water for the required consistency (as given in the Performance Data below).
  • Add Cemgrout NS slowly to the water and mix concurrently with a slow speed muter (high shear paddle shall be used) until a lump-free and homogenous mortar is achieved.
  • Ensure minimal air-entrapment into the mix.

Structure And Machinery Base-Plate

Application of Cemgrout NS:

  • Apply the well mixed Cemgrout NS mortar onto the prepared surface within 45 minutes in order to gain the full benefit of the expansion process.
  • Cemgrout NS may be applied, in one application,
    up to 100 mm thickness. For thicker application,
    the addition of clean and graded 6mm aggregate
    at the rate of 1:1 by weight is recommended.
    This is to minimise temperature rise.
  • If pouring or pressure grouting methods is used, Cemgrout NS mortar should be applied from only
    one side of the void in order to eliminate air entrapment and facilitate continuous grout flow.
  • The ideal temperature range for Cemgrout NS
    mortar application is between 5C to 35C.
    This is because cooler temperatures retards the setting time and strength gain.

SAFETY PRECAUTION

  • Avoid direct contact with eye and skin although Cemgrout NS is non-toxic.
  • Wear gloves and goggles.
  • Wash skin or affected area with clean water.
  • Avoid ingestion.
  • For more detail information please refer to the Material Safety Data Sheet.

Unicorp Sendirian Berhad Lot 66, Beribi II Industrial Estate,
B.S.B. BE1118 P.O. Box 620, Bandar Seri Begawan BS8671,
Brunei Darussalam
Tel: 673-245 0450, 245 0500, 245 0998
Fax: 673-245 0999 E-mail: unicorp@brunet.bn or unicorpbrunei@brunet.bn
Copyright Unicorp Sendirian Berhad All Rights Reserved 2005

mixed Cemgrout NS mortar onto the prepared surface within 45 minutes in order to gain the full benefit of the expansion process.
  • Cemgrout NS may be applied, in one application,
    up to 100 mm thickness. For thicker application,
    the addition of clean and graded 6mm aggregate
    at the rate of 1:1 by weight is recommended.
    This is to minimise temperature rise.
  • If pouring or pressure grouting methods is used, Cemgrout NS mortar should be applied from only
    one side of the void in order to eliminate air entrapment and facilitate continuous grout flow.
  • The ideal temperature range for Cemgrout NS
    mortar application is between 5C to 35C.
    This is because cooler temperatures retards the setting time and strength gain.
  • SAFETY PRECAUTION

    Unicorp Sendirian Berhad Lot 66, Beribi II Industrial Estate,
    B.S.B. BE1118 P.O. Box 620, Bandar Seri Begawan BS8671,
    Brunei Darussalam
    Tel: 673-245 0450, 245 0500, 245 0998
    Fax: 673-245 0999 E-mail: unicorp@brunet.bn or unicorpbrunei@brunet.bn
    Copyright Unicorp Sendirian Berhad All Rights Reserved 2005