Mostafa Osman and Ata El-kareim Shoeib
Effect of Nanofibers on the Behavior of Cement Mortar and Concrete
64 - 69
2015
9
1
International Journal of Civil and Environmental Engineering
https://publications.waset.org/pdf/10000511
https://publications.waset.org/vol/97
World Academy of Science, Engineering and Technology
The main objective of this paper is study the influence
of carbon nanotubes fibers and nano silica fibers on the
characteristic compressive strength and flexural strength on concrete
and cement mortar. Twelve tested specimens were tested with square
section its dimensions (4040 160) mm, divided into four groups.
The first and second group studied the effect of carbon nanotubes
(CNTs) fibers with different percentage equal to 0.0, 0.11, 0.22,
and 0.33 by weight of cement and effect of nanosilica (nS) fibers
with different percentages equal to 0.0, 1.0, 2.0, and 3.0 by
weight of cement on the cement mortar. The third and fourth groups
studied the effect of CNTs fiber with different percentage equal to
0.0, 0.11, and 0.22 by weight of cement, and effect of nS fibers
with different percentages were equal to 0.0, 1.0, and 2.0 by
weight of cement on the concrete. The compressive strength and
flexural strength at 7, 28, and 90 days is determined. From analysis of
tested results concluded that the nanofibers is more effective when
used with cement mortar more than used with concrete because of
increasing the surface area, decreasing the pore and the collection of
nanofibers. And also by adding nanofibers the improvement of
flexural strength of concrete and cement mortar is more than
improvement of compressive strength.
Open Science Index 97, 2015