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Results from a five-year research program

Concrete pipes reinforced with polypropylene synthetic macrofibers


Steel fiber reinforced concrete pipes are currently used as an alternative to conventional steel reinforced concrete pipes in some regions of the world, such as Europe and Australia. However, there are concerns with corrosion of the steel fibers as larger cracks develop in the pipes. An extensive five-year research program was carried out at the University of Texas at Arlington (UTA) to evaluate synthetic polypropylene macrofibers as an alternative reinforcement for concrete pipes. The research was performed through collaborations with the American Concrete Pipe Association (ACPA) and its members, and BASF Construction Chemicals. A performance-based ASTM Specification, ASTM C1818 Specification for Synthetic Fiber Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe, was developed as a result of the UTA research. The new standard describes a technically strong and durable reinforcement option that can be used for underground piping. Synthetic fiber is required to be prequalified for use in concrete pipes through long-term testing to show that the long-term serviceability factor, α, has a value of 0.90 or higher.

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Center for Structural Engineering Research
Department of Civil Engineering
University of Texas at Arlington

BASF Corporation
Beachwood
44122 Beachwood, USA

American Concrete Pipe Association
8445 Freeport Parkway, Suite 350
Irving, Texas 75063-2595, USA

CPi worldwide journals are trade journals for the concrete and precast concrete industry that are published in 12 different language editions in more than 170 countries. These trade journals, with their practical editorial reporting on research, production and applications, are specifically addressing the decision makers of the concrete and precast concrete industry.

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