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Manholes Files

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

Published Year: 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.

Flyer: Manhole Rehabilitation

Published Year: 2011

  • Manhole Rehabilitation

White Paper: The Role of Chemical Grouting in Wastewater Systems

Published Year: 2011

  • The Role of Chemical Grouting in Wastewater Systems: How to Reduce I&I and Prevent Structural Damage with Intelligent Use of Chemical Grout

Technical Manual: Expanded Gasket Placement (EGP) Technique

Published Year: 2011

  • The EGP Technique: Expanded Gasket Placement Technique Using AV-219 Oakum™ and AV-202® Multigrout

Magazine Article: Effective Point Repair of Laterals

Published Year: 2011

  • Point repairs that effectively address inflow and infiltration problems that are structurally sound and do not require rehabilitation

Grout Workshop: Stop Water Infiltration Now, Not Later

Published Year: 2010

  • Stop water infiltration now, not later

NASSCO Tech Tips - Curtain Grouting Manholes and Underground Structures

Published Year: 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?

NASSCO Tech Tips - Curtain Grouting Manholes and Underground Structures

Published Year: 2010

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

Brochure: Costs of Chemical Grout: What Would You Spend?

Published Year: 2009

  • Are you spending thousands of dollars each year treating clean water? Recent studies and over 50 years of experience indicate that America's first trenchless technology is still the best, most cost-effective, long-term defense against infiltration.

Magazine Article: Acrylamide Grout Aces 20-Year Test

Published Year: 2008

  • Grouting has occasionally been thought of as a more temporary solution, a stop-gap. But recent testing of two 20-year old acrylamide grout rehab projects indicate that grout can certainly stand the test of time.

Tech Perspective: Sealing the Deal

Published Year: 2007

  • Marketing-savvy contractors can educate municipalities on the value of chemical grout and in the process build a profitable new line of business

Comparison of Chemical Grout Properties: Which Grout Can Be Used Where and Why?

Published Year: 2006

  • This paper is about the current uses of chemical grouts, the economics of product use, and a discussion of where specific products within a category can be used.

Magazine Article: First in the World - A Unique Approach to Lateral Grouting

Published Year: 2006

  • A unique approach to lateral grouting keeps homeowners contented with the public works department in a southeastern Wisconsin village.

Magazine Article: Driving Down I/I

Published Year: 2006

  • CIPP lining and grouting of lateral connections proves to be a sound formula for tightening sewers in Graettinger, Iowa

Magazine Article: Slipping Through the Cracks

Published Year: 2006

  • Sustainability, cost-effectiveness and public disruption are all major concerns when a municipality attacks a community-wide problem, especially when that problem concerns water and sewer pipelines.