Masonry Magazine July 2006 Page. 37
Choosing a Grout Based on Job Parameters
| | Traditional High-lift | Traditional Low-lift | SCG | Traditional Extended Set |
| - | - | - | - | - |
| Mixing | Plant or field | Plant or field | Plant | Plant |
| Location | All locations for field mixed; All locations, except remote, for plant mixed | All locations for field mixed All locations. except remote, for plant mixed | All locations, except remote | Suited to remote or hard to reach locations, or for large volume placements |
| Labor Crew | Standard | Standard | Smaller crews | Standard |
| Consolidation | Required | Required | Not required | Required |
| econsolidation | Required | Only required if lifts are greater than 12 inches | Not required | Only required if lifts are greater than 12 inches |
| Speed of Placement | Faster | Standard | Faster | Standard |
| Demonstration Panel | Recommended for pour heights over 12.67 | Not required | Most likely reqared | Not required |
*The mortar-as-grout technique is not included here.
**A grout pour height may be comprised of a single lift or multiple lifts (in a plastic condition).
Note: Regarding placement, each of these grout types are placed with the same type of equipment, which Includes lange or small buckets and grout pumps. Contractor experience and grout volume affect the method of placing grout.
Once more is understood about their performance, such as through the NCMA research, it is anticipated that they will be incorporated into the C 476 standard.
Taking Another Look at Reinforced Masonry
Which grout formulation is right for your job? Some general considerations are outlined in the table at left. Traditional grouts have proven themselves over many decades. Each grout formulation has some unique abilities, highlighted in the table here, which may be beneficial on a particular project.
Masonry construction will continue to be valued for its aesthetics, durability, favorable construction schedule and versatility. The efforts being put forth on grout seem to indicate a healthy industry. Having so many different types of grout to choose from is good news for mason contractors. Grout, in its varied forms and with all its installation methods, offers many options for designers and builders to customize each project, while meeting or exceeding the owner's expectations.
Jamie Farny is the program manager of Masonry & Special Products for Portland Cement Association. He can be reached at jfarny@cement.org.
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