161. Applications of SCC technology for precast/prestressed elements. The Mexican experiences

Title: 161. Applications of SCC technology for precast/prestressed elements. The Mexican experiences
Author(s): R.E. Rodríguez Camacho, R. Uribe Afif, G. Martínez Corona, H. Montaño Román, B. Martínez Sánchez
Paper category : conference
Book title: 5th International RILEM Symposium on Self-Compacting Concrete
Editor(s): G. De Schutter and V. Boel
Print-ISBN: 978-2-35158-047-9
e-ISBN: 978-2-35158-088-2
Publisher: RILEM Publications SARL
Publication year: 2007
Pages: 1071 - 1078
Total Pages: 8
Nb references: 4
Language: English

Abstract: The Precast/Prestressed industry in Mexico requires making changes on its traditional production process; so they need concretes that help them to enable faster placement without vibration, to eliminate steam curing and operations of finishing with the quality warranty required to be an efficient process and to increase the productivity.
The SCC has been a viable option to get theses changes using it as substitution of conventional concrete. Some kind of precast and prestressed elements of structural type require a compressive strength at 28 days of 34.32 MPa. The SCC technology is optimized to get eighty per cent of compressive strength at different hours; for example 12, 14, 16 hours with stability and flowability according to application.
This presentation focuses in the different applications of SCC in precast and prestressed elements as, precast rings, prestressed members as right beam, Type C beam, T and TT beams. The use of SCC gives a significant benefit for precas/prestressed element producers due to cost reduction, finishing, labor reduction and increment in the productivity. With optimal designs of SCC, the technical and economics benefits are maximized. Aesthetic and environmental benefits include improved appearance of exposed surfaces and noise reduction.

Online publication: 2009-06-16
Publication type : full_text
Public price (Euros): 0.00