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 f_ck 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

PERFORMANCE

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