International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 05 Issue: 08 | Aug 2018 www.irjet.net p-ISSN: 2395-0072
© 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 1157
An Experimental Study on Performance of Ternary Blended High
Strength Fiber Reinforced Concrete
Ramavath. Sreenu
1,
Katukuri.Hajarath
2
Mathamalla.Madhukar
3
Assistant Professor, Dept. ofCivil Engineering, Anurag Group of Institutions,Telangana,
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Abstract - Over the past several years, the ample research
work is in progress throughout the globe in concrete
technology in finding other materials which can partially or
fully replace ordinary Portland cement (OPC) and which can
also meet the requirements of strength, workability and
durability aspects. Among the many alternative materials
tried as fractional cement replacement materials, the strength,
workability and durability performance of industrial by
products like flyash, blast furnace slag, silica fume, metakaolin,
rice husk ash, and industrial waste etc., now termed as
complimentary cementitious materials (CCM) are quite
promising. Consequently, these have led to the up growing of
binary, ternary and tertiary blended concretes depending on
the number of CCM and their combinations used as partial
cement replacement materials.
In the extant experimental investigation a mix design high
strength concrete of M60 is tried using triple blending
technique with ternary blend of ground granulated blast
furnace slag (GGBS) and Metakaolin (MK) as partial
replacement by weight of cement at various blended
percentages ranging between 0% – 30% and with steel and
glass fibers having aspect ratio of 80 and 150 are added at
0.5%, 1.0%, 1.5% and 2% as total fiber percentages. The
results of fiber reinforced concrete specimens with various
percentages of ternary blends are comparing with control
specimen to study the performance of FRC properties with
various percentages of the blends as partial replacement by of
cement.
Key Words: Ternary blended concrete, matakaolin (MK),
ground granulated blast furnace slag (GGBS),
crimped steel fibers, glass fibers.
1. INTRODUCTION
Over the past several decades, extensive research work is
in progress throughout the globe in concrete technology in
finding alternative materials which can partially or fully
replace ordinary Portland cement (OPC) and which can also
meet the requirements of strength and durability aspects.
Amongst the many alternative materials tried as partial
cement replacement materials, the strength, workability and
durability performance of industrial by products like flyash,
blast furnace slag, silica fume, metakaolin, rice husk ash,etc.,
now termed as complimentary cementitious materials (CCM)
are quite promising.
Subsequently, these have led to the development of
binary, ternary and tertiary blended concretes depending on
the number of CCM and their combinations used as partial
cement replacement materials.
1.2 TRIPLE BLENDED CONCRETE(TBC)
Triple blended cement is characterised by part
replacement of cement with mineral admixtures/additives
such as pozzolanic admixtures (fly ash, silica fume,
granulated slag etc.) or inert fillers. The corresponding
concrete is termed as triple blended concrete. These
admixtures are found to enhance the physical, chemical and
mechanical properties of the concrete i.e. in terms of its
strength parameters (compressive and flexural) as well as
durability parameters.
1.3 Objective
The main objective of this experimental investigation is to
study the performance evaluation of ternary blended hybrid
fiber reinforced concrete. For the study, ternary blend
(GGBS+MK) is chosen, in which 30% of cement is replaced
by ternary blends in different proportions such as (30+0),
(25+5),(20+10), (15+15), (10+20), (5+25) and (0+30). The
strength characteristics such as compressive strength,
tensile strength are studied. The work is carried out on fibre
hybridization of (MK+GGBS) on M60 grade of concrete
1.4 Materials used
In this experimental study, Cement, sand, coarse aggregate,
water, steel fibers and glass fibers, GGBS and metakaolin are
used.
Cement: Ordinary Portland cement of 53 grade was used in
this experiment conforming to I.S12269:1987
Coarse aggregates: Locally available, maximum size 20 mm,
specific gravity 2.60
Sand: Locally available sand zone I with specific gravity 2.60,
water absorption 1% conforming to I.S. – 383-1970.
Water: Potable water was used for the experiment. Chemical
admixture: Super plasticizer
Metakaolin: It is supplied by Twenty Microns company
Vadodhara. Metakaolin is obtained from the calcinations
of kaolinitic clays at temperatures in the range of 700 -
8000 C. GGBS: Low calcium, ground granulated blast furnace
slag from the ACC cement plant, Kudithini, Hospet.
Steel fibers: Crimped (L=35mm, thickness=1mm)
Glass fibers: 15mm lengths were used.