Product Data Sheet
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Expansive Dry Pack Grout
PAC-IT packable grout is a non-ferrous, non-shrink grout specifically formulated for grouting applications, without the need for expensive form work. PAC-IT is a pre-mixed, low-slump grout with high density and high strength. PAC-IT offers excellent workability and high one-day strengths in addition to the non-shrink property.
PAC-IT is ideal for grouting column bases, precast walls, panels, beams, pre-tensioned or post-tensioned, pre-stressed member applications.
- Furnished premixed … ready to use … just add water.
- Offers high density and one-day strengths with non-shrink characteristics.
- Mixes quickly and easily to desired consistency right on the jobsite.
- Features excellent workability.
- Requires no bonding agent.
- Forms are not required … saves time and money.
- No Added Chloride or Gypsum.
50 lb. (22.7 kg) Poly-Lined Bags
Each bag yields 0.43 (0.0122 m³) of in-place grout using 7.5 pints (3.55 L) of water.
Twelve months when stored indoors on pallets in a dry, cool area. Do not store product outside.
Mix: 7 1/2 pints (3.55 L) of water per 50 lb. (22.7 Kg) bag of PAC-IT
Flow: 25%, 5 drops of the Flow Table within 2 minutes.
|Setting Time* (Per ASTM C 191)|
|Initial Set||30 minutes|
|Final Set||1 hour 10 minutes|
|Compressive Strength* (Per ASTM C 109)|
|24 hours||4,800 psi (33.1 MPa)|
|3 days||6,400 psi (44.1 MPa)|
|7 days||6,900 psi (47.6 MPa)|
|28 days||7,500 psi (51.7 MPa)|
|Expansion (Per ASTM C 157)|
|28 days @ 90% RH||0.125%|
VOC Content: 0 g/L
All technical data is typical information, but will vary due to testing methods, conditions, procedures, batching variations, and raw materials variances.
*Set time, strength development and performance are dependent on temperature; therefore, follow ACI methods during hot or cold weather grouting.
ACI 305R-91 “Standard on Hot Weather Concreting”
ACI 306R-88 “Standard on Cold Weather Concreting”
All grouting should be done using established concreting procedures according to American Concrete Institute recommendations: ACI 351.1R-93 “Grouting for Support of Equipment and Machinery.” Failure to follow all industry standard practices, such as the American Concrete Institute (ACI), will compromise the performance of the PAC-IT and/or grouting system.
This data sheet does not supersede any and/or all engineering, architectural, or equipment manufacturers’ recommendations or drawings. A professional engineer must determine suitability of PAC-IT for grouting, anchoring, doweling, or any other use. This is a not a standalone engineering document. The design configuration or system is the sole responsibility of the licensed design professional for the project, equipment manufacturer, or installing contractor.
Surface Preparation … Mechanically roughen or abrasive blast concrete substrate. Remove all unsound concrete and provide a profiled, porous surface. Substrate must be structurally sound, dust-free, and free of grease, oil, dirt, curing compounds, release agents, or any other surface or penetrated contaminants, coatings, sealers, or similar that will adversely affect bond. Sanding, acid etching, cup-grinding, or wire-abrading are not approved concrete surface preparation methods. Substrate must be rough and profiled, but generally level. Grouting area must be saturated with water two hours prior to grouting to a saturated surface dry condition. Remove all excess water before placing grout.
Mixing … Small quantities of PAC-IT may be hand-mixed in a concrete mixing pan until lump-free. For large quantities, mix using a mortar mixer with rubber-tipped blades for three minutes and until lump-free. Use minimum water required to produce desired placement consistency.
Mixing requirements per bag:
7 pts. (3.3 L) for stiff consistency
8 pts. (3.79 L) for plastic consistency
Mix in two steps. Fist, add 2/3 of water requirement. Then, add grout. After partial mixing, add remainder of water to achieve desired consistency.
Do not mix more material than can be placed in 30 minutes.
Placement … Place by packing or rodding in to area to be grouted.
Curing … Cure immediately following application, cure PAC-IT using a suitable curing compound from W. R. MEADOWS, or in accordance with ACI 308. 2200-WHITE series or 1100-CLEAR series from W. R. MEADOWS is recommended. When conditions exist for rapid early water loss, the use of EVAPRE™ from W. R. MEADOWS is also recommended.
HEALTH AND SAFETY
Avoid direct contact with this product, as it may cause skin and eye irritation. Utilize gloves and safety glasses to minimize direct contact. Avoid inhalation of dust. Inhalation may cause respiratory irritation and/or lung disease (silicosis). This product contains silicon dioxide, which is carcinogenic to humans (IARC Group 1A). The use of NIOSH approved respiratory protection is recommended in dusty environments. Refer to Material Safety Data Sheet for complete health and safety information.
May help contribute to LEED credits:
- MR Credit 2: Construction Waste Management
- MR Credit 4: Recycled Content
- MR Credit 5: Regional Materials
This material last updated September 2013.