International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 03 | Mar -2017
p-ISSN: 2395-0072
www.irjet.net
A BRIEF STUDY ON THE STRENGTH PROPERTIES OF CONCRETE MODIFIED WITH SILICA FUME AGGREGATES AND IRON OXIDE (NANO MATERIAL) 1S. 1Professor,
RAMESH REDDY, 2B.UMAPRASAD, 3Dr. V. BHASKAR DESAI
Dept. of Civil Engineering, Brindavan Institute of Technology & Science, Kurnool, A.P and Research Scholar JNTUA College of Engineering, Anantapuram-515002, A.P. 2M.Tech
3Professor,
Student, JNTUA College of Engineering, Anantapuram – 515002, A.P
Dept. of Civil Engineering ,JNTUA College of Engineering, Anantapuram-515002, A.P.
---------------------------------------------------------------------***--------------------------------------------------------------------Key Words: Silica fume aggregates, admixtures, ACC 53 Abstract - In the last decade nanotechnology has been grade, concrete, iron oxide, various tests
gathering spectacular amount of attention in the field of building materials. The incorporation of nano sized particles
1 .INTRODUCTION -The recent advancements in the
in a small amount to the building materials can influence their
construction industry necessitate development of new
properties significantly and it can contribute to the creation of
materials. Light weight aggregate has been the subject of
novel and sustainable structures. A mix design was done for
extensive research particularly from the industrial and
M20 grade concrete by IS code method. ACC 53 grade cement
agricultural waste which would otherwise create problem
was used and natural aggregate is fully replaced with Silica
for disposal. The most important characteristic of light
fume aggregates. In this experimental investigation partial
weight aggregate is its lower thermal conductivity, lower
replacement of cement (11%) with three number of pozzolanic
density. An attempt is made to prepare artificial light weight
materials like silica fume, slag and fly ash in equal proportions
aggregate concrete using cold bonded Silica Fume aggregate
along with varying percentages of Nano iron oxide at 0, 0.5, 1,
and the density is around 1000Kg/M3.
1.5 and 2% on 11% of pozzolanic materials. The iron oxide nano particles acted as a filler which improve the micro
The basic purpose of using Nano sized materials in
structural properties of a cementitious composite and it
concrete is to improve compressive and flexural strengths at
reduced its total porosity and thus increasing the density of
early age; it is possible due to the high surface to volume
the composite.. Because of pozzolanic action, silicon dioxide
ratio. It also helps to improve the pore structure of concrete.
reacts with free lime during hydration and produces more C-S-
Nano sized materials help to reduce porosity as they absorb
H gel. After 28 days, various tests has been carried out i.e
less water compared to traditional cementitious materials.
compressive strength test, flexural strength test, modulus of
The presence of Nano materials reduces the amount of
elasticity test, impact test, Mode-II fracture test for concrete.
cement content in concrete than the conventional concrete.
The concrete made with nano iron oxide in combination of
This can be achieved without sacrificing strength
three numbers of pozzolanic materials yielded better results.
characteristics; thereby it is possible to produce ecofriendly concrete.
Š 2017, IRJET
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