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09 September 2014

Chemical Grouting is for Life-Long Learners

Posted in Water & Wastewater

Since becoming part of the Avanti family, I have met with dozens of grouting contractors and municipal crews with years of experience rehabbing underground structures. Most feel confident in their quality of work, and with balancing efficiency, effectiveness, and safety. As someone who served as an infrastructure restoration contractor for a decade, I know from personal experience how difficult it is to make procedure adjustments, modify processes, and implement subtle improvements.

29 July 2013

Preserving the Underground Infrastructure at Miami-Dade

Posted in Water & Wastewater

Preserving the Underground Infrastructure at Miami-Dade

Communities large and small face a delicate balance of improving their underground sanitary sewer collection system and reducing flow to their treatment plant while being good stewards of the rate-payer and protecting quality of life. The intrusion of groundwater and soil files are sabotaging system efficiencies causing the plant to treat twice the volume, increasing sanitary sewer overflows, and polluting our clean water systems.

26 July 2013

Ultrafine Cement Grout Excels at Colorado School of Mines Field Day

Posted in Geotechnical

Ultrafine Cement Grout Excels at Colorado School of Mines Field Day

It happens only once a year. Colorado School of Mines (Golden, CO) hosts a week long short-course on grouting. It’s attended by Who’s Who in the geotechnical grouting industry.

On the afternoon of June 19, 2013, the school hosted a Field Day and participants were able to view a live demonstration of the permeability of different grouts through Sand Column Testing. I’m pleased to announce, US Grout’s Ultrafine Cement excelled over other cement grouts by reaching the top of the sand column (60 inches) in just 80 seconds. No other cement grout came close.

05 July 2013

Preparation--Key Critical for Chemical Grout Repair Projects

Posted in Industry News

Planning for repair work is more than setting a date. Just like a good paint job is all about the preparation, so is chemical grouting. With work often in confined spaces, after hours, and sometimes requiring equipment shut down, it is vital to have everything ready to facilitate starting on time so you can finish as planned.

25 June 2013

The Proof is in the Pudding

Posted in Industry News

The Proof is in the Pudding

The basic meaning of the popular phrase "proof is in the pudding" is being uncertain about the quality of something until it's been tried and tested. That's how we feel about our Field Services Manager, Charlie Lerman. He's a hot commodity, our secret weapon, the real deal, tried and tested ... you see where I'm going with this. Most of all, he's genuine and always willing to assist, teach and mentor those of the grouting community.

03 June 2013

How to Choose a Grout for Sealing Mainlines and Laterals

Posted in Water & Wastewater

Below are some questions to consider when choosing a grout for sealing mainlines and laterals--before, after, or independent of lining:

  1. Cost: Cost should only be one factor. What is more important is that you are using the appropriate product for the job and the grout is applied correctly--in accordance with the 2012 NASSCO recommendation is a good start.
  2. Cost vs. Cure Time: Grouts have different cure times. Be sure to check tech data sheets to determine how much control over cure time you will have in the field. Better yet, you can do a more thorough investigation by performing your own tests. The more catalyst you need to reach the desired goal, the more money you'll spend on product.

03 June 2013

Joint Failure Not Always Obvious--Test Every Joint

Posted in Water & Wastewater

I visited a job site a few weeks ago and talked with the grouting operator. I found three things very cool:

  1. It was nice to visit a grout truck that was kept clean and orderly. This was a municipality that only has one crew responsible for each grout truck, so they treat it like their own.
  2. They air tested every joint. There is no point in grouting only the visible leaking joints and ignoring the ones that are not noticeable. The joints must pass an air test or should otherwise be grouted. If not, once you grout the leaking joints, the groundwater simply migrates to the next joint and enters there.

31 May 2013

Miami-Dade Attacks Infiltration and Scores Major Win for the Community

Posted in Water & Wastewater

I recently visited with Rod Lovett and Juan Bedoya with the Miami-Dade Water and Sewer Department. It was great to see them and meet some of their crew. Last year alone, Miami-Dade invested in nine new grout trucks. After 25+ years of grouting, it is encouraging to see one of the largest municipalities in the country so committed to stopping water infiltration. 

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