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FX-930 Rapid Hardening Cement

DESCRIPTION:

FX-930 Rapid Hardening Cement is a fast hardening, non-shrink hydraulic cement. It is especially formulated for concrete repairs where rapid strength gain, good durability, no shrinkage and positive bond are essential. When used as a replacement for Portland Cement, and mixed with water and suitable aggregates, it produces a quality concrete, which attains 2,500+ psi compressive strength in two hours. FX-930 contains no added chlorides.

ADVANTAGES:

FX-930 exceeds all requirements of ASTM C-928. It is especially desirable for patching with minimum downtime. For grout—mix FX-930 cement with sand. For concrete—mix FX-930 cement with sand and coarse aggregate. Amounts may vary depending on strength required. Both fine and coarse aggregate shall meet the requirements of ASTM C-33.

APPLICATIONS:

As a Portland Cement replacement, FX-930 is ideal for applications where quick concrete strength is required, including repairs of highways, runways, sidewalks, and floors.

TECHNICAL DATA

GROUT
FX-930	50 lbs.
Sand	100 lbs.
Water	2.3 gals.
CONCRETE
FX-930	720 lbs.
Fine Aggregate	1,200 lbs.
CA	1,600 lbs.
Water	33 gals

PHYSICAL PROPERTIES:

TEST METHOD	GROUT	CONCRETE
Hardening Time (ASTM C-266)
Initial Set	20-30 minutes	25-35 minutes
Final Set	35 minutes	35 minutes
Compressive Strength	ASTM C-109	ASTMC-695
2 hours after set	3,000 psi	2,500 psi
1 day	4,000 psi	3,200 psi
7 days	5,500 psi	5,000 psi
28 days	7,000 psi	6,000 psi
Freeze/Thaw - NY DOT 502-3P	0% Loss	Good
Expansion/Contraction	0%	0%
Theoretical Yield above mix	1.2 cu. ft.	1 cu. yd.
Length Change CRD-C 621	0	0
Wet Density	135#/cu. ft.	145#/cu. ft.
Bond Strength	520 psi @ 5 days
Flexural Strength, psi (ASTM C 78)	5 Hours 650
	28 Days 1,260
Modulus of Elasticity, psi (ASTM C 469)	28 Days 4,220,000
Cement specific gravity, g/cu. cm	2.98

DIRECTIONS FOR CONCRETE:

Remove all unsound concrete keeping edges and corners square. Adjacent concrete should be free of oil, grease, laitance and debris. Apply FX-752 Bonding Agent or dampen area with water where fresh grout or concrete will be placed against existing concrete.

A slump of approximately 4" is recommended for ease of placement and to assure a good bond. The working time for FX-930 Rapid Hardening Cement is approximately 20 minutes at 70°F (longer at lower temperatures, shorter at higher temperatures).

It is important that the placement operation be organized within this time limitation. After Hardening, the concrete will gain strength quickly, and finishing operations may be difficult. In hot weather, the working time may be extended by using cold materials, ice, and/or FX-343 DP Retarder. In cold weather, warm materials may be used to hasten the set and strength development.

For best results, wet cure or apply FX-15 Membrane Curing Compound.

COVERAGE:

Each 50 lb. (23 kg) bag mixed with 100 lb. sand, and water—will yield approximately 1.2 cu. ft. of mortar.

SHELF LIFE:

One (1) year

LIMITATION:

FX-930 Rapid Hardening Cement should not be used in temperatures below 40°F (4°C) or placed at layers of less than 1/2" (12.7 mm) thick. Areas for patching must be clean; precautions should be taken when sandblasting or when compressors are used, that water and oil collection traps are used.

CAUTION:

Contains cementitious materials. Freshly mixed materials may cause skin irritation or skin injury. Avoid contact with skin and wash exposed skin areas promptly with water. If any cement powder or mixture gets into eyes, rinse immediately and repeatedly with water and get prompt medical attention. SEE MSDS.

FOR INDUSTRIAL USE ONLY. KEEP AWAY FROM CHILDREN. 12/2004