Manholes Files

Making the Grade - Manhole Rehab

Ken Wysocky Cleaner Magazine 2017

  • if may seem far-fetched that two former PE teachers would make abrupt career changes and build a multi-million dollar a year manhole rehabilitation business, but that's exactly what Kim and Lawrence Vallow did in 1982.

NASSCO Tech Tips - Never Lose Man Hours on a Grouting Job

Tech Tips from NASSCO - Charlie Lerman Underground Construction Magazine 2013

  • Underground contractors, utilities and municipalities do big things well. It's the small jobs that can turn proftable projects upside down and lead to cost overruns.

'Grout First,' Right Answer for Sullivan's Island, SC

Don Rigby Trenchless Technology 2016

  • Greg Gress, manager of sewer and water for Sullivan’s Island, S.C., just completed the community’s CMOM self-assessment of its collection system. The condition assessment clearly indicated 90% of Sullivan’s Island problem was infiltration and inflow (I/I)

NASSCO Report: Grouting

Infiltration Control Grouting Association (ICGA) Trenchless Technology 2016

  • Think You Know Municipal Grouting? Think Again - Reeducate! To further the objectives of ICGA, reeducation is now core to its mission, as injection grouting has experienced monumental advances in the last decade, with more to come.

Trenchless Pioneers Build on Past, Look to Future

Sharon M. Bueno Trenchless Technology August 2016

  • Avanti International Continues to Educate and Develop Chemical Grouting Industry

Injection Hose Kit Manual

Avanti

  • Avanti International’s Injection Hose Kit is a preventative chemical grout injection system for the permanent sealing of cold and construction joints in concrete and voids between slurry walls and slabs.

NASSCO Report: Past, Present and Future of Municipal Grouting

NASSCO's Infiltration Control Grouting Association (ICGA) Trenchless Technology May 2016

  • This year the municipal grouting industry celebrates 50 years as the original trenchless technology. It is appropriate to honor our past, but - more importantly - prepare for the future and the renewed focus on our failing infrastructure.

NASSCO Tech Tips - Curtain Grouting Manholes and Underground Structures

Tech Tips from NASSCO - Daniel Magill Underground Construction Magazine 2010

  • Picture this: You're standing in a brick manhole that is 50 years old and is leaking extensively. You've already been working for over an hour and for every leak you stop, several new leaks appear. Now what?

Irreversible Changes in the Grouting Industry Caused by Polyurethane Grouting

Alex Naudts DFI/Geo-Institute of the A.S.C.E 2003

  • An Overview of 30 Years of Polyurethane Grouting

EGP Quick Reference Guide

Avanti 2014

  • EGP Quick Reference Guide: How to Stop Stubborn Leaks with AV-202 and Oakum

Urethane Grouts for Stopping Leaks

Avanti 2015

  • Top 5 Urethane Grouts for Stopping Leaks

Chemical grouting: An effective tool against groundwater infiltration

Andrew Topf Canadian Underground Infrastructure 2014

  • Groundwater infiltration of sewer pipes is a common problem encountered by municipalities, especially those with aging infrastructure

Efficient, Economical Grout Solution for Downers Grove

Underground Construction 2014

  • Reducing sewer line I&I with grouting allows Downers Grove Sanitary District (DGSD) to avoid major repair expenses.

Out of Sight But Not Out of Mind: Sealing Manholes with Polyurethane Grouts

Charlie Lerman Trenchless Technology 2014

  • Five techniques to successfully sealing manholes using polyurethane grouts

When 'Old School' is the Right School

Underground Construction 2013

  • Combined Grout, CIPP Effective Solution for Granite City, Illinois
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