CIPP resin systems are the saturating resins that carry the structural load in a cured-in-place pipe (CIPP) liner, and the trenchless industry names four families for the job: polyester, vinyl ester, epoxy and silicate. The short answer: the resin is chosen from the effluent chemistry first and from the cure route the contractor can run
CIPP Resin Systems Explained: Polyester, Vinyl Ester, Epoxy and Silicate Lire plus »
CIPP vs pipe replacement is decided by the host pipe, not the price: lining wins where the pipe keeps its shape and the surface cannot be opened, while open-cut work wins where the pipe has collapsed, lost grade or run out of capacity. Cured-in-place pipe (CIPP) renewal builds a structural liner inside the existing host,
CIPP vs. Traditional Pipe Replacement: A Structural and Economic Comparison Lire plus »
Choosing between a felt vs fiberglass CIPP liner is really a conversation about the carrier, not the finished pipe. A cured-in-place pipe (CIPP) is built from two parts: the tube that arrives at site, and the thermoset resin that is forced into it during wet-out. The tube holds the resin while it cures, and the
Felt vs. Fiberglass CIPP Liners: Which Tube for Which Job Lire plus »
The history of CIPP (cured-in-place pipe) starts with one stubborn repair problem: in 1970–1971, British agricultural engineer Eric Wood patented a way to insert a resin-impregnated tube into an existing pipeline, press it against the wall and cure it in place, so the tube became a new pipe inside the old one. The first CIPP
The History of CIPP: Eric Wood’s 1971 London Invention That Became an Industry Standard Lire plus »
How does CIPP lining work? It works by inserting a resin-impregnated tube into a cleaned host pipe and curing it in place, so the tube and resin become a new structural pipe inside the old one. CIPP lining runs as a numbered 14-step sequence: CCTV inspection, cleaning, flow control and resin wet-out, then inversion, curing,
How Does CIPP Lining Work? Step by Step From CCTV Inspection to Service Reinstatement Lire plus »
In pipe rehabilitation, CIPP stands for cured-in-place pipe: a resin-impregnated liner is installed inside an existing pipe and cured there, so the liner and the resin form a new structural pipe within the old one. In pipeline work the letters name one method, not a material or a contractor. Most readers meet what does CIPP
What Does CIPP Stand For in Pipe Rehabilitation? (And What It Doesn’t) Lire plus »
Cured in place pipe lining is a trenchless rehabilitation method. The acronym CIPP stands for cured-in-place pipe, and the same method is written CIPP lining, cure-in-place pipe, CIPP pipe lining or CIPP renewal across the industry. This guide answers what is CIPP lining and what is a CIPP, then sets out the CIPP diameter range,
What Is Cured-in-Place Pipe Lining? Definition, Diameter Range and How It Works Lire plus »
This microtunneling case study covers four steel casing crossings on the West Harris County Regional Water Authority supply project in Houston: 99.5-inch outside diameter casing jacked behind a RASA machine, out of 36-foot liner plate shafts roughly 55 feet deep, beneath roadways and waterways below the water table. Bidding a large steel casing drive beneath
Case Study: 99.5-Inch Steel Casing Jacked Beneath a River – What It Took Lire plus »
Most microtunneling problems are symptoms rather than causes. In published forensic cases the real faults were a water model that missed an artesian aquifer, a shaft that breached the clay layer sealing it, and a design grade with no tolerance for error. Microtunneling problems are rarely caused by the machine; the published record points at
Lessons Learned From Difficult Microtunneling Projects: What Goes Wrong and Why Lire plus »
Published microtunneling records are claims, not certificates: about 7,369 ft (2,246 m) for the longest drive worldwide, 5,600 ft (1,707 m) in North America, and 3.4 m (11.2 ft) inside diameter for the largest microtunnel. No recognized depth record exists. If you are weighing a microtunneling records figure against your own drive, the definition matters
Microtunneling Records: The Longest, Largest and Deepest Drives Lire plus »
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