Prestressed Concrete Cylinder Pipe (PCCP) has been used in water and wastewater applications for nearly 80 years. The thought process behind PCCP was sound, in that it would combine concrete's high compressive strength with steel's high tensile strength. However, like many products, PCCP has continued to fall short in the following years in many comparative categories to Ductile iron.
Cement-mortar lining for iron pipe has been used for nearly 100 years. The first installation of gray iron pipe with a cement lining was recorded in Savannah, GA in 1922. Todays modern Ductile iron pipe still utilizes cement lining for a safe and reliable means of providing clean drinking water to millions of people every day.
On occasion, however, the cement lining may have incurred some damage in the field. The lining, although very durable, does not have the same resistance to bending stress or impact as the pipe itself. Certainly, the pipe or fitting should be checked for further structural damage, but once determined the affected area is only the cement lining, repairs can be made under the applicable provisions within the ANSI/AWWA C104/A21.4 standard CEMENT-MORTAR LINING FOR DUCTILE IRON PIPE AND FITTINGS.
“Why should I use Ductile iron pipe?”
The question is ostensibly meant to include “instead of other types of piping material.” Well, the reasons are vast and vary depending on project requirements. Since we aren’t talking about a specific project, we’ll look at the general overriding reasons Ductile iron pipe is the best choice for your piping projects.
In this second installment of our Iron Strong Blog on Sustainability and Resiliency, we will focus on recycling and the recyclability of various pipe materials. As you may know, Ductile iron pipe is made from recycled iron and steel scrap, making it not only a recycled product but a recyclable product.
Okay, since that fact has been stated, why read further? Well, besides being the only primary full-size-range piping product made from recycled material, you should know why this is important to you, me, and everyone else. We will look at the impact of recycling on cities and towns as well as countries and the planet.
McWane Ductile is committed to offering educational resources based upon sound engineering data to our clients and potential clients. One of these resources includes banners that display certain information about our product.
While attending a recent conference, we were challenged on the information these banners contained. In fact, one unknown individual walked by the booth and shouted, “Lies... that information is lies!” without the courtesy of stopping to discuss why he felt that way or what exactly was his objection.
I have been on the road for nearly 20 years, talked with numerous contractors and distributors during that time, and there is a common question that I often get asked, "Why do Ductile iron pipe lengths vary?"
In years past, gray cast iron pipe was originally sold with no lining or coating on the pipe's interior. After many years of study, it became apparent that the inside of cast iron pipe might be affected by certain types of water. In this Iron Strong Blog, we will describe tuberculation, why it happened in older iron pipe, and the modern solution for tuberculation.
Did you know the mattress industry is one of the oldest continuous industries in the world? The first mattresses were believed to have been manufactured in 37 BC in Persia. Today, more than 35 million mattresses are shipped world-wide to replace those that have been in service for an average of seven years. So, what does this have to do with Ductile iron pipe (DI pipe), you ask? This article will discuss how setting improper bedding in a pipe trench can cause sleepless nights for the water company and its crews due to pipe failures, seemingly always at night — as it is my experience that most large main breaks typically occur after dark!
Question – What is the difference between Ductile Iron and Polyvinyl Chloride (PVC)? Answer – Many things, but some groups may attempt to “muddy the waters” with inaccurate information regarding the two materials.
With the information that follows, we will take a closer look at what really separates Ductile Iron from PVC and why it matters.
At McWane Ductile, we are proud to manufacture the strongest, most durable, and most flexible piping material available to the waterworks industry. Even with these great attributes, we still take great care when handling Ductile iron pipe (DI pipe). In this Iron Strong Blog, we’ll cover key tips for safely handling your DI pipe once it arrives at your job site and throughout the construction of your pipeline project.
In a continuous effort to make your job easier, we have developed an online submittal builder to quickly and neatly package your personalized presentation.
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Looking for answers to your DI pipe questions? Find decades of Ductile iron expertise with installation guides, videos, tip sheets, training resources, and more in our Learning Center.
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Stop struggling with those hard-to-figure field calculations and put ease and efficiency right at your fingertips with our Pocket Engineer for mobile and desktop devices.
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