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LINE GROUTING PROFESSIONALS

Superior Grouting has extensive experience in the art of annular and abandonment grouting, with four decades of experience.

THE SUPERIOR GROUTING BENEFIT

On-site Footprint – small and compact

Mobility – our team can move easily between locations

Cleanliness – minimal waste and clean-up

Responsiveness – multiple crews means we are quick to respond

ANNULAR GROUTING

Annulus grouting

 is the process of filling the area between a host pipe and liner pipe in re-lining applications, and very common for grouting casings with internal conduits in electrical duct banks. It is important when sealing and grouting the annular space, it must be done right the first time, since there is not a second chance.

Superior Grouting has extensive experience in placing 

annular grout

 and sanded grout mix designs.

Workers installing underground pipes at construction site.
Underground pipes at construction site.
ABANDONMENT GROUTING

Excavation and removal of abandoned underground pipes can be extremely expensive, and abandoned pipes often cannot simply be left as is. In certain cases, the law now requires that any abandoned pipe be removed or adequately grouted so that it will not collapse and create voids that could cause settlement to the roadbed or structures above.

Abandonment and 

annular space grouting

 is the process of filling the pipe with a cellular grout or sanded grout. It is important to remember when pressure grouting to abandon a pipe, it must be done right the first time, since there is not a second chance. Superior Grouting has mastered the art of abandonment grouting and 

annular space grouting specifications

 with four decades of experience.

USES OF ANNULAR GROUTING

Underground utility line projects

Electrical duct banks

Tunnel Backfill

Contact Grouting

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CELLULAR GROUT MIX DESIGNS

Mix Designs: When working with cellular grout and considering mix designs, a cardinal rule is that as density decreases, so does strength. In some instances, such as the material needing to be excavated later, the loss of strength is a benefit. An additional benefit is that as the material becomes lighter, it’s thermal and acoustic insulative properties increase as well. A very basic cellular grout mix design would consist simply of Portland cement, water, and externally generated foam, which is also referred to sometimes as preformed foam. The water cement ratio can typically vary from .40-.80, and the foam content is commonly as high as 80%, depending on desired density.

Compared to heavier grouts, cellular concrete is lightweight and highly fluid, resulting in the following advantages:

Lower pressures reduce the risk of pipe or structure damage

Requires fewer access points. Cellular Grouting has the ability to pump for long distances (over 5,000 feet) – fewer access points mean lower costs and less disruption

Minimal shrinkage

Low hydrostatic and buoyant forces acting on carrier pipes

Virtually eliminates risk of incomplete filling or plugging of void spaces

Stability and strength with only minimal weight

Load reduction (vertical and lateral)

CONTACT GROUTING

Contact grouting is the injection of grout between the initial support and the ground or jacked carrier pipe and the ground. It involves the filling of void space between a cast-in-place (CIP) structure and the in-situ geo-material or another structure.

When contact grouting, normally the extent of the void space is not known. Generally, the intent of contact grouting is to increase the structural integrity of the structure. 

Our Accomplishments

Since 1983, Superior Grouting has been a pressure grouting contractor working with various government agencies, large businesses, and corporations. For years, Superior Grouting has been in charge of these customers' specialized pressure grouting and concrete remediation needs.

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Superior Grouting is a top choice for various grouting services in Houston, the entire Gulf Coast Region, and the areas nearby. It holds more than 35 years of experience in the grouting industry. Also, Superior Grouting is known for using the best tools and state-of-the-art equipment in providing clients with the best results.

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