US SPEC GP Grout

Identification & Functionality

Product Type

Grout

Technologies

Ready-to-Use Products

Product Families

Ready-to-Use Products — Construction Materials

Mortar & Grouts

Features & Benefits

Labeling Claims

Chlorine-free

Ready-to-Use Product Features

Good Compressive Strength,

High Flexural Modulus,

High Strength,

Low Shrinkage,

Non Corrosive

Benefits

Workability: Meets standards through a wide range of consistencies
Thixotropic: High flow restored by agitation
Non-Corrosive: Will not rust
Cost Effective: Extendable
Strength: Attains high compressive strengths at specified water ratios
Economical: Good performance and low cost
Performance: Joins, supports and anchors
Hardens free of bleeding or segregation
Consistent: Strict Quality Control testing and standards.

Applications & Uses

Markets

Building & Construction

Applications

Building & Construction — Building Materials

Fence, Decks & Rails,

Other Building Materials

Building & Construction — Other Building & Construction Applications

Uses

GP Grout is ideal for a wide variety of applications:

• Machinery Grouting : Machinery bases, compressors, punch presses, generators.
• Structural Grouting : Steel columns, precast columns, crane rails, beams.
• Anchoring : Guard rails, sign posts, dowels, rods, bolts, post-tension anchor heads.

Application

Surface Preparation:

All surfaces in contact with GP Grout shall be free of dirt, oil, grease, laitance and other contaminants that may act as bondbreakers. All unsound concrete should be removed to ensure a good bond. Smooth, dense surfaces need to be mechanically abraded to provide necessary bonding requirements. Mechanically prepare the substrate to a minimum CSP 5 following ICRI Guideline 310.2R to allow proper bonding. ACI recommends that the area to be grouted should be saturated for 24 hours before placement. Remove any standing water. Substrate should be saturated, surface dry (SSD). Maintain contact areas between 40°F (4°C) and 90°F (32°C) prior to grouting and during initial curing period.

Application Thickness:

1-3” Neat, Up to 8” Extended.

Coverage/Yield:

50 lbs (22.7 kg) will fill approximately 0.43 ft³ (0.012 m³) when 4.5 quarts mixing water is used.

Foaming:

Method of forming must provide for rapid, continuous grout placement. For pourable grout, construct forms to retain grout without leakage. Forms should be coated with US SPEC form release for easy removal.

Mixing:

For larger batches, use a mortar mixer with rotating blades. For smaller batches, use a heavy duty 1/2” (15 mm) (or larger) low-speed, corded drill and mixing paddle #6 per ICRI echnical guideline 320.5. Pre-wet mixer and empty excess water. Place 3/4 of the required cool, clean potable water in mixer, then add dry material. Mix on low RPM for a total of 3 to 5 minutes, adding the remaining water, until a homogeneous mixture is achieved. When using a mortar mixer higher RPMs may be necessary to achieve a homogeneous mixture. Mix only enough grout that can be placed within working time. For plastic consistency, use 3.5 quarts of water. For flowable consistency, use 4.0 quarts of water. For fluid consistency, use 4.5 quarts of water. These mix ratios provide a guideline. The actual water demand will depend on type of mixer used, water temperature and ambient temperature. Adjust the water to achieve the desired flow. Recommended flow is 20 to 30 seconds using the ASTM C939 Flow Cone Method. For placements greater than 3” depth, GP Grout must be extended 30% by weight of powder, with clean, washed and dried 3/8” (1 cm) pea gravel. Do not blend excess water as this will cause bleeding and segregation. Do not use any other admixtures or additives.

Placing:

Grout should be placed using established procedures according to American Concrete Institute recommendations. GP Grout can be placed by pumping, pouring, rodding or strapping. Mechanical vibration may cause segregation of aggregates. Place grout on one side of area. Let grout flow to opposite and adjacent sides to avoid entrapment of air and uneven bearing of the grouted surface. When necessary, provide vent holes. Grout should continue to be placed until it protrudes from the entire perimeter area. Grout “head” and excess grout may be removed after initial set. Recommended minimum placement depth is one inch.

Finishing & Curing:

Follow standard ACI curing practices. Do not disturb formwork or grout for 24 hours. Use wet rags or burlap to cure for 6 hours after placement. After 6 hours, remove rags from exposed surfaces and cure with a membrane forming curing compound such as US SPEC Maxcure Resin Clear, US SPEC Hydrasheen or US SPEC CS-25-1315. For best results, exposed grout should extend downward at a 45° angle from edge of base.

Properties

Physical Properties

Property and Test Method	Results
Compressive Strength ASTM C109 via C1107	1 Day	3 Days	7 Days	28 Days
B - PLASTIC 3.5 qts	3,500 psi (24.13 MPa)	5,500 psi (37.92 MPa)	6,500 psi (44.82 MPa)	8,500 psi (58.61 MPa)
C - FLOWABLE 4.0 qts	3,000 psi (20.68 MPa)	5,000 psi (34.47 MPa)	6,000 psi (41.37 MPa)	8,000 psi (55.16 MPa)
D - FLUID 4.5 qts	2,000 psi (13.79 MPa)	4,100 psi (28.27 MPa)	5,000 psi (34.47 MPa)	7,000 psi (48.26 MPa)
Rate of Set ASTM C266	Working Time	Initial	Final
B - PLASTIC - 3.5 qts	:45	2:00	3:30
C - FLOWABLE - 4.0 qts	1:00	3:00	4:15
D - FLUID - 4.5 qts	1:45	4:00	5:30
B - 100% - 125% flow table (ASTM C230, 5 drops in 3 seconds) C - 125% - 145% flow table (ASTM C230, 5 drops in 3 seconds) D - 28 second flow cone method (ASTM C939)
Flexural Strength	7 Days		28 Days
ASTM C348	800 psi (5.51 MPa)		1,200 psi (8.27 MPa)
Density	137 lb/ft3 (2,195 kg/m3)
ASTM C138
Modulus of Elasticity	2.83 x106 (19.48 GPa)
ASTM C469
Splitting Tensile	28 Days
ASTM C496	600 psi (4.13 MPa)
Scaling Resistance	Cycles		Scaled Material
ASTM C672	25		.04 kg/m2
Bond Strength	1 Day	7 Days	28 Days
ASTM C882	1,300 psi (8.96 MPa)	2,000 psi (13.78 MPa)	2,300 psi (15.85 MPa)
Height Change	1 Day	3 Days	7 Days	28 Days
ASTM C1090	0.0001	0.0002	0.0003	0.0004
Effective Bearing Area	>95%
ASTM C1339
Corrosion Resistivity	GP Grout tested compatible with Vector Corrosion Technologies Galvashield embedded galvanic anodes.

Regulatory & Compliance

Standards

GP Grout meets and exceeds the requirements of ASTM C1107 and Corp of Engineers CRD C621. When tested in accordance with ASTM C827, GP Grout yields a controlled, positive expansion.

Technical Details & Test Data

Limitations

Do not apply when the surface or ambient temperature is below 40°F (4°C) or expected to fall below 40°F (4°C) within 48 hours. When grouting at minimum temperatures, ensure surfaces in contact with grout do not fall below 40°F (4°C) until final set has been achieved and grout has reached 3,000 psi. Do not apply over surfaces that are frozen or contain frost. Do not apply over any active faults or cracks in the substrate without addressing any movement that may occur. Do not use as a patching or overlay mortar or in unconfined areas. Setting time will speed up in hot weather and slow in cold weather.

Safety & Health

Danger

This product contains Crystalline Silica (CAS# 14808-60-7) and Portland Cement (CAS# 65997-15-1). Harmful if swallowed. Causes skin irritation. Causes serious eye damage. May cause an allergic skin reaction. May cause cancer. May cause respiratory irritation. Causes damage to organs through prolonged or repeated exposure. Do not eat, drink or smoke when using this product. Wash hands thoroughly after handling. Contaminated work clothing must not be allowed out of the workplace. Do not handle until all safety precautions have been read and understood. Wear protective gloves/protective clothing/eye protection/face protection. Use only outdoors or in a well-ventilated area. Do not breathe dust. Keep away from children. Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

First Aid

• If swallowed : Immediately call a poison center/doctor. Rinse mouth.
• If in eyes : Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a poison center/doctor.
• If on skin : Wash with plenty of water. Take off contaminated clothing and wash it before reuse.
• If skin irritation or rash occurs : Get medical advice/attention.
• If inhaled : Remove person to fresh air and keep comfortable for breathing. Call a poison center/doctor if you feel unwell.

Packaging & Availability

Packaging Type

Bags

Packaging

50 lb (22.7 kg) bag, 63 bags per pallet.

Storage & Handling

Storage

Normal cement storage and handling practices should be observed. Store in an interior, cool, dry place. Shelf life is one year in original, unopened container.