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No. 382 |
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DESCRIPTION
CG-86 construction-grade grout is a non-ferrous, non-gaseous, non-shrink economical grout. It was specifically developed as a high strength, cost-effective, general purpose grout for use across a broad range of large and small construction projects. CG-86 is non-gaseous, will not rust and contains no added chlorides or gypsum. It is furnished pre-mixed and ready to use. CG-86 may be extended for deep grouting with pea gravel for greater yield and increased economy.
USES
CG-86 is very versatile and may be used for either interior or exterior applications. CG-86 is designed for base-plate grouting, anchoring, pre-cast wall panels and bridge seats.
SPECIFICATIONS
ASTM C 1107, Grade A, B & C
Corps of Engineers Spec. CRD-C-621
PACKAGING
50 lb. (22.7 kg) Poly-lined Bags
YIELD
0.43 ft³ (0.012 m³) per 50 lb. (22.7 kg) bag.
| FEATURES/BENEFITS |
|
TECHNICAL DATA*
| Consistency (per ASTM C 827-95A) | Plastic | Flowable |
| Mix Ratio (per 50 lbs.) | 6.25 pints | 6.75 pints |
| Flow (per ASTM C 230-90) | 110% | 130% |
| Set Time (per C 191-92, Initial) | 4-6 hours | 5-7 hours |
|
Compressive Strength (per ASTM C 109-93) @ 1 day @ 3 days @ 7 days @ 28 days |
4100 psi (28.2 MPa) 6500 psi (44.8 MPa) 8000 psi (55.2 MPa) 9600 psi (66.2 MPa) |
3600 psi (24.8 MPa) 5800 psi (40.0 MPa) 7600 psi (53.4 MPa) 9200 psi (63.4 MPa) |
| *All technical data is typical information, but may vary due to testing methods, conditions and procedures. | ||
APPLICATION
All grouting should be done using established procedures according to American Concrete Institute recommendations.
Surface Preparation…All grout contact surfaces must be free of oil, grease, scale, etc. Unsound concrete must be chipped out. Leave surface rough but level. Grouting area must be saturated with water 12-24 hours prior to grouting. Remove all excess water before placing grout.
Pouring… Method of forming must provide for rapid, continuous grout placement. Ensure form is well sealed.
Placement…CG-86 is easily placed by pouring or pumping and compaction can be accomplished by rodding or light vibrating. Place grout on one side, flowing to opposite and adjacent sides, to avoid entrapment of air. When necessary, provide vent holes. Grout "head" and excess grout may be removed after initial set.
Curing…Cure CG-86 immediately following application using a suitable curing compound from W. R. MEADOWS, or in accordance with ACI 308. W. R. MEADOWS recommends 2250-WHITE or 1130-CLEAR for curing. When conditions exist for rapid early water loss, the use of EVAPRE™, an evaporation retarder from W. R. MEADOWS, is also recommended.
Venting…Forming also must ensure adequate venting to avoid air entrapment. Do not make close fitting forms; allow 1/2" (12.7 mm) clearance and 1" (25.4 mm) for "head."
Mixing…Small quantities of CG-86 may be hand mixed in a concrete mixing pan until lump-free. For large quantities and continuous pours, use a mortar mixer with rubber-tipped blades. Mix for a minimum of three minutes or until uniform and lump-free. Use minimum water required to produce desired placement consistency. Do not mix more than can be placed in 30 minutes. Do not re-temper. Use only clean, potable water.
Set time and strength development are dependent on temperature; therefore, follow ACI methods during hot or cold weather grouting.
ACI 305 - "Standard on hot weather concreting"
ACI 306 - "Standard on cold weather concreting"
PRECAUTIONS
Do not use as a repair mortar. (Please contact
W. R. MEADOWS for specific repair mortar recommendations.) Normal cement storage handling practices should be observed. Grouting should be done using established concreting procedures according to ACI recommendations. Read and follow application information, precautions and Material Safety Data Sheet information.
This material last updated May 2007.
