A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
DURABILITY AND MECHANICAL PROPERTIES OF NANOCOPOSITE FIBER REINFORCED CONCRETE
In this study we investigated the influence of polypropylene/organoclay fibers on durability and mechanical behaviour of concrete. Pure polypropylene fibers and polypropylene nanocomposite fibers of two different lengths (20 and 60 mm) have been mixed in concrete at two volume fractions (0.1% and 0.3%). Nanoclay addition increases fibers elastic modulus (about 27%) reducing ductility. Workability of concrete is greatly influenced by fibers length and volume fraction: increasing these two values workability decreases. Fibers are not influent on compressive and flexural strength while post-cracking toughness is increased. Nanocomposite fibers have a better pull-out strength due to a better friction during slipping, but this doesn’t ensure a better adhesion. Water absorption, freeze/thaw cycles and sulfate attack test demonstrate that increasing fibers volume fraction, durability of concrete increases.
DURABILITY AND MECHANICAL PROPERTIES OF NANOCOPOSITE FIBER REINFORCED CONCRETE
In this study we investigated the influence of polypropylene/organoclay fibers on durability and mechanical behaviour of concrete. Pure polypropylene fibers and polypropylene nanocomposite fibers of two different lengths (20 and 60 mm) have been mixed in concrete at two volume fractions (0.1% and 0.3%). Nanoclay addition increases fibers elastic modulus (about 27%) reducing ductility. Workability of concrete is greatly influenced by fibers length and volume fraction: increasing these two values workability decreases. Fibers are not influent on compressive and flexural strength while post-cracking toughness is increased. Nanocomposite fibers have a better pull-out strength due to a better friction during slipping, but this doesn’t ensure a better adhesion. Water absorption, freeze/thaw cycles and sulfate attack test demonstrate that increasing fibers volume fraction, durability of concrete increases.
DURABILITY AND MECHANICAL PROPERTIES OF NANOCOPOSITE FIBER REINFORCED CONCRETE
Coppola, Bartolomeo (author) / Scarfato, Paola (author) / Incarnato, Loredana (author) / Di Maio, Luciano (author)
2014-01-01
Article (Journal)
Electronic Resource
English
DDC:
690
Mechanical Properties and Durability of Fiber Reinforced Alkali Activated Slag Concrete
| British Library Online Contents | 2017
Mechanical Properties and Durability of Fiber Reinforced Alkali Activated Slag Concrete
| Online Contents | 2017