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Prestressed concrete cylinder pipe (PCCP) is a common variety of large-diameter concrete pressure pipe used for transporting water and wastewater. PCCP is typical manufactured according to the American Water Works Association (AWWA) standard C304. [ 1 ]
Prestressed concrete is a highly versatile construction material as a result of it being an almost ideal combination of its two main constituents: high-strength steel, pre-stretched to allow its full strength to be easily realised; and modern concrete, pre-compressed to minimise cracking under tensile forces.
The Pressure Pipe Inspection Company (PPIC) is a supplier of large-diameter water and wastewater pipeline condition assessment and leak-detection services in Mississauga, Ontario. It specializes in identifying damaged pipeline sections to protect infrastructure investment, locate leaks, reduce risk and ensure environmental compliance.
In 2013 TMK acquired pipe services and precision manufacturing assets incorporated into OFSi company (Houston, USA). In 2020, TMK closed sale of 100% of Ipsco Tubulars Inc. shares to Tenaris. [4] In 2021, TMK announced the transaction for acquisition of 86.54% of shares in PJSC "ChelPipe" from controlling shareholder Andrey Komarov. [5]
A precast concrete walled house under construction An example of low-quality precast concrete with exposed dowels, connectors, indications of cracks, and malformations, even during its installation, Barangay Lantic, Carmona, Cavite, Philippines Interior view of the walls, supports, and roof of a precast commercial shop in Williston, North Dakota, US.
The usual technique for concrete buildings, bridges and similar structures is to use ICCP, [30] but there are systems available that use the principle of galvanic cathodic protection as well, [31] [32] [33] although in the UK at least, the use of galvanic anodes for atmospherically exposed reinforced concrete structures is considered experimental.
This pipe was deemed totally unusable due to severe issues with threading. Interpipe was the only company that responded to the tender. An industry expert called the supplied materials "scrap metal" and blamed Ukraine's Ministry of Economy for allowing Interpipe to exercise de facto monopoly power over the steel pipe market. [50] [51]
The prestressed strands of the mold are twisted to form a mold compression process, the structure is more compact, and the surface layer is more suitable for anchoring. Production of unbonded prestressed steel strand (unbonded steel strand) using ordinary prestressed steel wire, coated with oil or paraffin after the packaging into high-density ...