concrete pipe testing Articles

  • Completing Condition Assessments using In-pipe GPR as Pipe Penetrating Radar

    Abstract This paper describes the development of Pipe Penetrating Radar (PPR), the underground in-pipe application of GPR, a non-destructive testing method that can detect defects and cavities within and outside mainline diameter (>18 in / 450mm) non-metallic (concrete, PVC, HDPE, etc.) underground pipes. The method uses two or more high frequency GPR antennae carried by a robot into ...


    By SewerVUE

  • BOSS 2000 HDPE Storm Sewer Pipe, Stettler, AB

    Owner: Town of Stettler Installer: Woooden Construction Ltd. Designer: Associated Engineering Alberta Ltd. Location: 57 Street, Stettler, Alberta As part of a sanitary main replacement project, the Town of Stettler was faced with the challenge of replacing an aging storm sewer line under very low cover conditions. ...


    By Armtec

  • Impact-Echo Response of Hollow Cylindrical Concrete Structures Surrounded by Soil and Rock: Part I—Numerical Studies

    The studies summarized in this paper and the following paper in this issue demonstrate that the impact-echo method can be used for integrity testing of concrete pipes, mine shaft liners, and tunnel liners in contact with soil or rock. Results obtained from numerical (finite element) studies are presented in this paper (Part I), and results obtained from experimental studies on mine shaft liners ...


    By ASTM International

  • Case study - Baltimore City public works intervenes on pipe section about to fail

    Service: SoundPrint AFO Client: Baltimore City Project Date: 2012 Location: Baltimore, MD Type of Pipeline: Water Transmission Main Diameter: 54-inch (1350mm) Pipe Material: PCCP Baltimore City features 130 miles of Prestressed Concrete Cylinder Pipe (PCCP), 15 percent of which is Class IV PCCP installed in the 1970s. This particular class of pipe has been prone to early ...

  • Frankfort Electric and Water Plant Board Verifies Distress on Ductile Iron Pipe Using Electromagnetics

    Commercial introduction of ductile iron pipe (DIP) began in the mid-1950s and was established as the most frequently selected material of choice for ferrous pressure pipe by the early 1970s. Due to the widespread use of DIP during a large expansion of pipeline infrastructure in the 1970s, there are many thousands of miles of pressurized DIP in operation today. Water and wastewater utilities ...

  • Looking for Clues: Hamilton Demonstrates Value of Condition Assessment Program During Investigation of Critical Watermain

    In late 2015, the City of Hamilton, Pure Technologies (Pure) and Robinson Consultants worked together to perform an external investigation of a pipe section in the Woodward Greenhill Transmission Main (WGTM) to gain understanding of what was causing degradation in a specific geographical area. A 2014 condition assessment ...

  • Tonabrocky reservoir roof lining - case study

    Geosythetic lining works include the installation of a 1,825m2 of 1.5mm smooth HDPE liner over the concrete roof of one existing and one new reservoir. Works included Fusion and extrusion welding techniques Sealing of HDPE liner to vertical concrete surface of 6nr. access hatches  using a stainless steel battening system Fabrication and sealing of 16 nr. pipe boots around ...

  • Case study - Tarrant Regional Water District (TRWD)

    Service: Electromagnetic Testing Client: Tarrant Regional Water District (TRWD) Type of Pipelines: Transmission Mains Diameter: 72, 84 and 90-inch Pipe Material: PCCP Length: ~1 mile The Tarrant Regional Water District (TRWD) is a raw water supplier that serves ten counties in north central Texas. Most of the 1.5 million people served by the District are in Tarrant County, ...

  • Dynamic Lateral Response of a Pile Group in Clay

    A series of lateral dynamic loading tests were conducted on a rigid concrete cap supported by nine 273-mm-diameter steel pipe piles in a square group. The piles were driven 13.7 m into a layered deposit of overconsolidated clay. A linear inertial mass vibrator applied horizontal constant-rate frequency sweep and steady state loadings from frequencies above the first mode resonance to frequencies ...


    By ASTM International

  • Salting icy roads affects water supplies

    It’s basic chemistry: Saline water’s freezing point is much lower than fresh water’s, which can help keep ice from forming on roads. To reduce winter accidents, municipal and state workers often apply salt and other compounds to icy roads, because if not accidents start to happen and people end up in need cash in emergency. Unfortunately, this may have unintended consequences ...


    By Fluence Corporation

  • Key Safety and Quality Practices for Industrial Fabrication

    Industrial fabrication requires an unwavering commitment to quality and safety. Industrial fabrication companies should thus utilize certain best practices to ensure that these standards are met every time with every unit that is shipped. Some keep areas of focus for maximizing safety and quality include certifications and standards, weld quality and selection, quality assurance and testing, and ...


    By STI Group, Inc.

  • BeiYi makes contribution to Beijing Winter Olympic Game.

     (May 9th), a 6 meters high, 3 meters wide countdown erected in the national speed skating hall on the south side of foundation pit construction is tense. Countdown display: from December 31, 2019 there for 600 days, and the "great craftsmen, winter pioneer, day and night, decisive success" four ...


    By lydite trading company

  • BeiYi makes contribution to Beijing Winter Olympic Game.

     (May 9th), a 6 meters high, 3 meters wide countdown erected in the national speed skating hall on the south side of foundation pit construction is tense. Countdown display: from December 31, 2019 there for 600 days, and the "great craftsmen, winter ...

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you