Author: Perma-Liner Atlanta

Why is CIPP Rehabilitation Alone Not Sufficient for a Sealed System?

water-tight-cipp-o-rings-seal

It is presumed that the resin in CIPP Liners bonds with host pipe, creating an effective watertight seal after cure. The truth is that resin shrinks due to polymerization leaving behind an annular space between liner and host pipe, allowing infiltration to migrate behind the new lining and re-enter into the collection system at lateral […]

Approvals & Standards – Are They End Game or Path Markers?

By John M Heisler Approvals & Standards – Are They End Game or Path Markers? “I’ve been installing liners for a while now and ran into an engineer who insists I provide all documentation showing that the material have approvals from an independent agency for the resin and tube to the thickness specified for his job. Do you have testing samples approved for 3mm as well as 4.5mm and with each of the hardeners you supply? According to him I need documentation for the Quik-Pox 15 at 3mm x 4”, 4.5mm x 4”, 3mm x 6” and 4.5mm x 6”. Additionally, I need documentation for the Quik-Pox 30 with the same sizes, as well as the Quik-Pox 60. Do you have that documentation?” First things first, the main document that covers our process is ASTM F-1216 for the inversion method and ASTM F-1743 for the pull in place method. This document describes how to install the materials as well as how to determine thickness, as well as outlines the ANSI standards used to test materials. Further reading of these standards shows the method used to test the material and uses results for the material across all design thicknesses. There is no provision for testing each resin model nor is there any provision for testing the finished material at different thicknesses. Here's what becomes confusing regarding this process. While we manufacture the raw materials for preparation of the finished product, the final assembly or manufacture is in the hands of the installer. The installer is charged with the duties of properly measuring, mixing, saturating the tube and calibrating the thickness to meet the design in the field. Since we have two parties involved in the finished product we can test the components in the laboratory, but those results may vary widely from what is found in the field. Here’s an example of why; we manufacture pure or neat resin and test the resin for strength prior to impregnating the material. Our resin is then cured and tested without tube and the results are published showing a flexural modulus more than 400,000 psi. When the liner is added to the mix, the non-structural liner takes up space in the resin but contains no strength. This reduces the value of the resin in its natural state to less than the 400,000 psi we had before. Here’s where the ASTM comes into play. You will note that the minimum value of flexural modulus strength is 250,000 psi, so resin producers that supply resin with a flexural modulus of 370,000psi neat, will most likely meet the 250,000psi minimum strength due to the tube addition reduces the strength. The bottom line, if you are going to build to a standard, the only way you can determine that you’ve met the standard is to test the finished product. Most often this is accomplished by capturing a restrained sample by placing a 12-inch piece of the same sized pipe as is being lined, curing it with the liner, then submitting the sample piece to an independent lab for testing. Depending on the lab and the quantities of samples tested each one may cost between $500 - $1,000 to ensure that the standard is met. The question. Who will pay for this? While we don’t see much interest from homeowners for the added expense of testing, when you move into the public arena and engineering firms get involved, you can be assured that they will look for assurances that what you install will meet the specification they are going for. One final thought. If you install untested materials and it fails, it means you didn’t follow the ASTM standards. If you have a failure and head to court for damages, you will lose the lawsuit and pay the damages. If you need more documentation or require in-depth information, contact us at +1-888-354-6464 or info@pipeliningsupply.com.

By John M Heisler Approvals & Standards – Are They End Game or Path Markers? “I’ve been installing liners for a while now and ran into an engineer who insists I provide all documentation showing that the material have approvals from an independent agency for the resin and tube to the thickness specified for his […]

Savannah completes drain project

With the rainy season here, the $2.4 million drainage project on Bolton Street has been completed. The project took a little more than a month to complete and utilized funding from the Special Purpose Local Option Sales Tax. The project is quite a milestone as Savannah used new trenchless pipelining technology to help with the […]

Perma-Liner™ Certified Installer Highlight

Atlanta Installer New

Located in Chamblee, Georgia and founded in 1985, the Zurns took steps to follow Ted and Wendy’s long-term goal of starting their own Atlanta plumbing business. Zurn Plumbing Service opened with a single truck and working out of their home office. After more than 30 years, the business has grown to more than 20, hard-working […]

Emergency Repairs to Atlanta, DeKalb County Pipes

Emergency Repairs to Atlanta, DeKalb County Pipes

Recently, crews had to replace 300 feet of aging 30-inch-diameter concrete sewer pipe, which was deemed a public safety hazard. The repairs began on Jan. 22 and cost approximately $700,000. These repairs are an effort to comply with the county’s consent decree with the Environmental Protection Agency and Environmental Protection Division. According to the decree, […]

Cured-In-Place-Pipelining Demonstration Days July 18 – 19

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Perma-Liner Industries, LLC. to Hold Live Cured-In-Place-Pipelining Demonstration Days and Educational Sessions Open House will be held in Anaheim, Cali. on July 18 – 19 ANAHEIM, Cali. – With state-of-the-art technology options, it is not necessary to dig up aging or failing pipes to repair them. There is an efficient and cost-effective way to repair […]

Epoxy vinyl ester resin brings many advantages to CIPP industry

Environmental-Impact-Bond

Perma-Liner™ Industries, LLC. (“Perma-Liner”), the leading manufacturer and supplier of trenchless pipeline rehabilitation equipment and materials in North America, is introducing a new high-performance epoxy vinyl ester resin called Perma-Liner™ Vinyl Ester. The resin is Bisphenol-A Epoxy-based dissolved in styrene and is available now for purchase. “We are excited to introduce our newest resin into […]

America’s Failing Water Infrastructure: There are Ways We Can Begin to Fix It

There are many variables threatening America’s water from pollution issues and aging infrastructure to raising costs and droughts and rainfall patterns as the climate changes. The U.S. used to be a leader when it came to water infrastructure and management. Now, the U.S. is lagging behind receiving D ratings for dams, drinking water and wastewater. […]

City Awarded Environment Impact Bond

green-infrastructure

The city of Atlanta recently became the first municipality in the country to be awarded a publicly-offered Environmental Impact Bond (EIB) for green infrastructure projects. The bond will help support eight infrastructure projects within the area. These eight projects were developed to help improve the waste and stormwater management and reduce the strain on the […]