Pipe bursting is a reliable and proven method of replacement of deteriorated or under capacity utility lines. The IPBA has developed a recurring series of technical articles and this article is written with the understanding that the reader has an advanced knowledge of pipe bursting and risk management associated with a pipe bursting project.
It was another busy year of growth and accomplishment for NASSCO (National Association of Sewer Service Companies), as membership reached an all-time high of nearly 450, plus the more than 150 delegates at the annual convention also set a record.
Al Colthorp of Lake St. Louis, MO, died on Oct. 18, 2011 at the age of 77. Colthorp graduated from Michigan State University with a masters in Civil Engineering, and was a registered Professional Engineer.
Volunteers are busy finalizing plans for the 2012 RehabZone, the popular sales-free “show within a show” at the annual UCT Show (Underground Construction Technology International Conference & Exposition). The events will be held Jan. 24-26 in San Antonio, TX.
The design of manhole coating and lining systems must take into consideration a number of conditions in the manhole, both as a whole and as individual components. When evaluating the nature of the coating or lining that will work best, a number of conditions should be defined.
Pipe bursting is a proven method for replacing underground pipelines and is the only method of pipeline rehabilitation and replacement other than open-cut excavation that can increase the size of an existing utility without trenching. This article will discuss the replacement of private sanitary sewer lateral pipes.
There are four key elements to having a really good Cured-in-Place Pipe (CIPP) installation:
1. Proper saturation of the tube;
2. Proper inflation of the resin saturated tube in the host pipe;
3. A full and thorough curing of the resin system used; and
4. A proper cool-down of the CIPP.
Manholes consist of multiple components and are made of different materials, each serving a different purpose but contributing to the complete manhole structure. Each component typically has its own set of defects and deterioration mechanisms.