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Ruentex Materials

U799

Long pot life, easy pump, high early and final strength grout for offshore wind turbine foundations. Type approved by DNV GL.

ShifuGrout U799

Long pot life, easy pump, high early and final strength grout for offshore wind turbine foundations. Type approved by DNV GL.

ShifuGrout U799 is an ultra-high strength grout used for offshore wind turbine concrete foundation installation, i.e. monopile, jacket and tripods. Specifically formulated for working environments in subtropical regions like Taiwan, ShifuGrout U799 is 100% developed and manufactured in Taiwan, packed and transported in watertight bulk bag.

ShifuGrout U799 obtained DNV GL Type Approval Certificate (TAC) in September 2019. A full scale mock-up testing at standard (20°C) and elevated (35°C) temperature was performed with procedures approved by DNV GL.

DESCRIPTION

FIELDS OF APPLICATION

ShifuGrout U799 is designed for high temperature, large scale and pumping applications.

  • Grouting for connections in wind turbine foundations and oil & gas installations.
  • Applicable at temperature 5°C ~ 35°C.
  • All void filling from 40mm to 800mm thickness.

FEATURES AND BENEFITS

  • Ultra high characteristic strength fck 127MPa
  • High early and final strength
  • No segregation nor bleeding
  • No wash-out during underwater grouting
  • Pump over long distance and large heights
  • Extended pot life ≥ 2 hours
  • Excellent durability
  • Excellent fatigue resistance

DESCRIPTION

Technical Data(1) Unit Values (20 ℃) Values (35 ℃)
Mixing water demand - % 8.8 ± 0.5 10.5 ± 0.5
Fresh density EN 1015-6 g/cm³ Approx. 2.33 Approx. 2.30
Pot life of mixed material ASTM 1437 hours ≥ 2 ≥ 2
Air content EN 1015-7 % ≤ 3 ≤ 3
Setting time (End of setting) EN 196-3 hours 16 7
Compressive strength (75 mm cubes )
- after 3 days
- after 7 days
- after 28 days
EN 12390-3 MPa

80
100
130


80
100
130
Flexural strength
(40×40×160mm)
-after 28 days
EN 196-1 MPa 16.6 17.9
Splitting tensile strength (150×300mm)
-after 28 days
EN 12390-6 MPa 6.9 7.8
Bleeding / Segregation ASTM C940 - None None
Ring Test
-after 28 days
ASTM C1581 mm/m -0.041
(No crack)
-
Static Young’s modulus ASTM C469 GPa 44.8 -
Poisson's ratio ASTM C469 - 0.20 -
Fatigue factor DNVGL-ST-C502 - For dry
C1=12.0
C5=1.0
For submerged in water
C1=10.0
C5=1.0
-
Characteristic strength fck Unit Values
Compressive strength (75 mm cubes ) EN 12390-3 MPa 127
Application information Unit Values
Nominal Bore (NB) for grout hoses/lines inch NB ≥ 2
Grout annulus thickness mm 40 ≤ t ≤ 800
Pumping length through 2”NB flexible hose m L ≤ 160
Pumping elevation head using 2”NB flexible hoses m H ≤ 20
Application temperature 5 ~35

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