Application of fiber reinforced high performance composites in spun-cast elements

Title: Application of fiber reinforced high performance composites in spun-cast elements
Author(s): J. P. Kaufmann, D. Hesselbarth, K. Moser, G. P. Terrasi
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 38
Issue: 279
Issue date: 2005-06-01
Publication year: 2005
Pages: 549 - 555
Total Pages: 7
Nb references: 14
Language: English

Abstract: Spin casting is an effective method to produce concrete pylons, masts or pipes.
Through the centrifugation process the concrete is compacted and the desired shape, mostly round or ellipsoidal, is obtained.
The concrete generally has to be reinforced with steel bars which are susceptible to corrosion.
Furthermore the placement of the reinforcement is time consuming and hence expensive and leads to rather thick and heavy structural elements.
The application of short fiber reinforced cement (FRC) or mortar is a suitable alternative.
Special requirements regarding workability and strength have to be considered.
Optimization of cement matrix was achieved with a blend of microfine cement and ordinary Portland cement, improving the rheological properties of the fresh mixture and resulting in a very dense cement matrix with excellent mechanical properties.
Reinforcement with different kinds of short fibers of carbon and polyvinylalcohol was studied.
Flow properties of the FRC were optimized with regard to the centrifugation process applying a new coneconsistency test.
The mechanical properties of conventionally cast specimens and of centrifuged prototypes were investigated.

Online publication: 2005-03-09
Classification: Scientific Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/14328