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Annular, Abandonment and Contact Grouting
Line Grouting Professionals
Superior Grouting has extensive experience in the art of annular space grouting and abandonment grouting, with four decades of experience.
ANNULAR GROUTING
Annular space 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 cellular grouts and sanded grout mix designs.
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 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 with four decades of experience.
USES OF ANNULAR & ABANDONMENT GROUTING
- Pipeline abandonment projects
- Underground utility line projects
- Electrical duct banks
- Tunnel Backfill
- Contact Grouting
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.
SUPERIOR GROUTING SERVICES
Established in 1983, Superior Grouting Services, Inc. is one of the best known and most reliable industry names in Greater Houston and the Texas Gulf Coast Region.
- Safety-First focus
- Leader in Geotechnical Remedial Services
- Rapid-Response Customer Service Across Texas, and the Gulf Coast Region
- Pressure – Compaction – Polyurethane Grouting Application Expertise
- Cellular – Sanded – Cementitious Mix Designs - Poly Materials Solutions
Our Accomplishments
“We have worked with Ron since 1997 helping him grow his business. Superior is a company that you know is going to be successful for the long haul. Their attention to customer service, quality of workmanship and their ability to find creative solutions to see that the job is done right the first time is what makes them a great company! David McAndrew – Harris Leasing Company”
David McAndrew8/21/2019
“Thank you for a job well done, The attention to detail by Andy and Octavio is praise worthy. Companies build their name based on the quality of their people this is evident. The product performed as indicated, or better than expected, look forward to years of good performance and remaining leveled. To the entire staff, thank you for a job very well done”
Rafael S5/3/2017
“ Superior Grouting used injectable foam to fix my cracked concrete. At the same time they lifted various parts of the concrete to even out the surfaces. They were FANTASTIC. On-time, hard-working, clean, precise – everything you want in a contractor. Their pricing was more than fair and their work speaks for itself. I highly recommend anyone using injectable foam for foundations, or lifting any kind of uneven surface to call Ron or Erica at Superior.”
Elyse C2018
“Great work performed by Andy and Octavio, they stuck around until the work was done it was almost 2200 as they wrapped things up. Professional, courteous and a great attention to detail , most companies build a great name based on the quality of their people and these guys demonstrated it.The product worked amazingly well during installation, it was a dramatic improvement with almost no damage. I am looking forward to seeing how well it will perform in years to come.
F. Sanchez2018
“I wasn’t even expecting the job to turn out as good as it did honestly? It exceeded my expectations way above and beyond better! You guys are truly the best!”
Teresa8/2/2019
5/5
“Very friendly, knowledgeable, and efficient service. Crew explained the process and cleaned up after the work was finished. Very professional team.”
Catherine D 5/31/2017
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