Occasionally the question arises as to how long concrete pipe will last. It is a generally accepted fact that concrete pipe will last at least 100 years and probably several centuries.
Considering the above factors, a concrete sewer pipe's life expectancy is about 75 to 100 years with good maintenance. But sewer pipes can also be made from clay, cast iron, and plastic pipes. How does the life expectancy of these materials compare to concrete pipes?
This pipe, which lies buried under the soil of your yard, can last anywhere from 50-100 years or more, depending on the material from which the pipe is made and the conditions under which it is used.
While concrete pipe offers a number of advantages, there are some potential disadvantages to consider. One of the most common issues is that concrete is subject to cracking and collapse if it is not properly supported. Additionally, concrete pipes can be quite heavy, making it difficult to transport and install.
A cement mortar coating is sprayed around the pipe to protect the wire against corrosion. Most PCCP mains are designed to reach a minimum service life of 50 years.
Life Expectancy of a Sewer Pipe
Old homes, or homes built prior to 1980, will most likely have clay sewer pipes. Clay sewer pipe life expectancy is approximately 50 years. PVC pipe, which became more prominent after 1980, typically lasts longer – approximately 100 years.
When it comes to design and specification of reinforced concrete pipeline systems, the CPAA recommends the use of AS/NZS 4058 “Precast concrete pipe (Pressure and non-pressure)” and AS/NZS 3725 “Desing for installation of buried concrete pipe”, for 100 year design life.
Concrete pipe is proven to have an incredibly long lifespan—you can expect RCP to last at least 100 years.
Occasionally the question arises as to how long concrete pipe will last. It is a generally accepted fact that concrete pipe will last at least 100 years and probably several centuries.
Cost Estimates
As we mentioned earlier, in the state of California, the cost of sewer line replacement can amount to anywhere between $50-$250 per linear foot, with an average of around $150.
Expert Recommendations for Sewer Line Cleaning
We recommend homeowners schedule sewer line cleaning every 18 to 24 months to prevent buildup and clogs. Regular cleanings help avoid costly repairs and extend the life of your plumbing system.
The Life Expectancy of Your Sewer Line
PVC piping is light, waterproof, and long-lasting. Clay pipes can last 50 to 60 years, while PVC pipes can last more than 100 years. However, sewer lines often experience issues years before they reach their life expectancy.
General Timeframe for Completion
Clearing a clogged sewer line may take between one and three hours. Performing a complete sewer line replacement using trenchless methods may take two or fewer business days. Replacing a sewer line using traditional trench-reliant methods may take three or more business days.
You can, but it would be wise to bury the pipe in sand or pea-gravel under the slab to be poured. Not a great idea to embed the PVC pipe directly in the concrete, because of the old (and well established reliable) saw “concrete cracks”.
Exposure to chemicals, such as acids, salts and oils, can also damage concrete surfaces. These substances can cause the concrete to deteriorate and weaken over time. For example, salt used to melt ice on concrete surfaces can seep into the concrete and cause it to crack.
Causes: Exposure to acid rain, de-icing salts, in-service chemicals and naturally occurring sulfates in soils and ground water dissolve the cement matrix which results in aggregate loss. Effects: Loss of concrete cover and subsequent corrosion of reinforcing steel.
However, its tensile strength is extremely weak compared to many construction materials, including our products. This means that it's easy for concrete to chip and crack — damage which can easily grow and will grow over time.
With a typical life span of 50 years, it is past or nearing the end of its useful life. Over time, the cementitious bonds in AC pipe erodes, causing leaks and the continued degradation of the pipe.
Brass, cast iron, and galvanized steel have a life span of 80 to 100 years, copper lasts 70 to 80 years, and PVC piping only survives for 24 to 50 years. In most new construction, this is seldom a problem, but if you live in an old home you might want to see what pipe material your house has.
Class 3 concrete pipe is typically used for drain, waste, and vent lines, while Class 4 pipe is typically used for sewer lines. The main difference between the two is the thickness of the walls. Class 3 pipe has thinner walls than Class 4 pipe, which makes it lighter and less expensive.
With proper installation and maintenance, concrete pipes can last for decades (and possibly much longer). In fact, many existing sewer and drain systems are made up of concrete pipes that were installed over 100 years ago.
Concrete Pipe Performance
For all normal, everyday instal- lations, the service life of concrete pipe is virtually unlimited. For exam- ple, some of the Roman Aqueducts are still in use after more than 2,000 years, and there is a buried concrete pipeline in Israel that was tentatively dated at 3,000 years old.
The Standard for concrete pipe, AS 4058 Precast concrete pipe - pressure and non-pressure, is no exception, identifying potentially harmful situations and providing limits for concentrations of aggressive agents, along with specifications for cover, to give the typical required service life of 100 years minimum.