DURABILITY RESPONSE OF HIGH PERFORMANCE CONCRETE WITH METAKAOLIN AND RICE HUSK ASH Swaminathen 1 , Prof. Robert Ravi 2 1 Research Scholar, Sree Sakthi Engineering College, Tamil Nadu, India. 2 Professor SSM Institute of Engineering and Technology, Tamil Nadu, India. Abstract - Concrete is widely used construction material in developing and developed countries in a structure. After several research results across different countries, growth of concrete is eyed forward towards the growth of its performance, where the high performance concrete is developed. This high performance concrete holds different enhanced property in it such as durability by proving resistive to chemically varying atmosphere, improved economic status, reduction of CO2 by reducing the amount of cement ( cement has been partially replaced by mineral admixtures-MK & RHA) , increased Ecology balance by balancing natural resources consumption and furthermore. The vision of this paper extends towards the effect of mineral admixtures on durability properties of high performance concrete. To attend effective results such as Low porosity, sorptivity and proportioning of materials is always been the key. M60 grade of concrete is used in this work. Curing is preferred to3, 7, 14, 28, 56, 90 days with 3 sample blocks (different combinations) each curing day. This different mixture of concrete is preferred upon further tests where the durability is determined cautiously. It is evident through researches that the durability performance can be further induced positively by critically proportioning the mineral admixtures to concrete. Key Words: Durability, Water absorption, Porosity, Sorptivity 1. INTRODUCTION HPC is the concrete that is proving to be effective and efficient than Ordinary concrete. Since last decade, the fashion of using supplementary cementing materials has become integral part of HPC. These supplementary cementing materials are chosen from the source that requires less energy and time, such as Natural materials, by-products or industrial wastes. The application of pozzoloanic materials in HPC proves to reduce the crystalline components – Calcium hydroxide in particular; simultaneously the thickness of the interfacial transition zone is also reduced. Thus densification of the interfacial transition zone allows for efficient load transfer between the cement mortar and the course aggregate contributing to the strength of the concrete. As recent trend, pozzalonic material like GGBFS, fly ash, Silica fume, Metakaolin and Rice Husk Ash blends are used in HPC to make it durable. In present research, MK and RHA is used as pozzolonic materials that is said to increase the mechanical property of concrete .This HPC prepared with supplementary cementing materials and super plasticizer- in fresh and hardened state, has got better performance than OPC concrete. On comparing HPC to OPC concrete, HPC has more binding property, less water requirement, coarser fine aggregate and small size of aggregate which improves the durability of concrete. Rice husk (RH) is an agro waste product. Countries like Malaysia, India, China and Bangladesh (Asian countries) produce tons of RH every year. Super pozzolona Rice Husk Ash (RHA) is obtained by controlled burning and incineration. SiO2 content is rich in RHA, so it becomes highly reactive to lime. MK is naturally available and sometimes a by-product from industries. MK can be obtained by heating the Kaolin mineral. Kaolin is a fine particle size, white clay that is abundantly used material in the production of porcelain. Inclusion of MK as supplementary cementing materials results in enhancement such as strength, durability and less consumption of cement in concrete. The usages of MK have reduced the thickness of interfacial zone and porosity of hardened concrete, the adhesion between cement paste and aggregate is also enhanced. This is due to the finer property of MK than cement particles. International Journal of Scientific Research and Review Volume 7, Issue 2, 2018 ISSN NO: 2279-543X http://dynamicpublisher.org/ 122
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DURABILITY RESPONSE OF HIGH PERFORMANCE CONCRETE
WITH METAKAOLIN AND RICE HUSK ASH
Swaminathen1, Prof. Robert Ravi2
1Research Scholar, Sree Sakthi Engineering College, Tamil Nadu, India. 2Professor SSM Institute of Engineering and Technology, Tamil Nadu, India.
Abstract - Concrete is widely used construction material in developing and developed countries in a structure. After several
research results across different countries, growth of concrete is eyed forward towards the growth of its performance, where the
high performance concrete is developed. This high performance concrete holds different enhanced property in it such as durability
by proving resistive to chemically varying atmosphere, improved economic status, reduction of CO2 by reducing the amount of
cement ( cement has been partially replaced by mineral admixtures-MK & RHA) , increased Ecology balance by balancing natural
resources consumption and furthermore. The vision of this paper extends towards the effect of mineral admixtures on durability
properties of high performance concrete. To attend effective results such as Low porosity, sorptivity and proportioning of materials
is always been the key. M60 grade of concrete is used in this work. Curing is preferred to3, 7, 14, 28, 56, 90 days with 3 sample
blocks (different combinations) each curing day. This different mixture of concrete is preferred upon further tests where the
durability is determined cautiously. It is evident through researches that the durability performance can be further induced
positively by critically proportioning the mineral admixtures to concrete.
Key Words: Durability, Water absorption, Porosity, Sorptivity
1. INTRODUCTION
HPC is the concrete that is proving to be effective and efficient than Ordinary concrete. Since last decade, the fashion of
using supplementary cementing materials has become integral part of HPC. These supplementary cementing materials
are chosen from the source that requires less energy and time, such as Natural materials, by-products or industrial
wastes. The application of pozzoloanic materials in HPC proves to reduce the crystalline components – Calcium
hydroxide in particular; simultaneously the thickness of the interfacial transition zone is also reduced. Thus densification
of the interfacial transition zone allows for efficient load transfer between the cement mortar and the course aggregate
contributing to the strength of the concrete.
As recent trend, pozzalonic material like GGBFS, fly ash, Silica fume, Metakaolin and Rice Husk Ash blends are used
in HPC to make it durable. In present research, MK and RHA is used as pozzolonic materials that is said to increase the
mechanical property of concrete .This HPC prepared with supplementary cementing materials and super plasticizer- in
fresh and hardened state, has got better performance than OPC concrete. On comparing HPC to OPC concrete, HPC has
more binding property, less water requirement, coarser fine aggregate and small size of aggregate which improves the
durability of concrete.
Rice husk (RH) is an agro waste product. Countries like Malaysia, India, China and Bangladesh (Asian countries)
produce tons of RH every year. Super pozzolona Rice Husk Ash (RHA) is obtained by controlled burning and
incineration. SiO2 content is rich in RHA, so it becomes highly reactive to lime. MK is naturally available and
sometimes a by-product from industries. MK can be obtained by heating the Kaolin mineral. Kaolin is a fine particle
size, white clay that is abundantly used material in the production of porcelain. Inclusion of MK as supplementary
cementing materials results in enhancement such as strength, durability and less consumption of cement in concrete. The
usages of MK have reduced the thickness of interfacial zone and porosity of hardened concrete, the adhesion between
cement paste and aggregate is also enhanced. This is due to the finer property of MK than cement particles.
International Journal of Scientific Research and Review
Volume 7, Issue 2, 2018
ISSN NO: 2279-543X
http://dynamicpublisher.org/122
The two materials namely MK and RHA are notably useful pozzolona cement material, which enhances the workability
and mechanical property of concrete when added. In the present work, experimental study was carried out to find the
effect of combination of MK and RHA on workability, strength, durability and reported the results. M60 grade
concrete with 53 Grade OPC Priya Cement was used, and mixes are prepared by replacing part of cement (OPC) with
MK and RHA. Thus the replacement levels are as follows 0%+0%, 5%+10%, 7.5 % + 10 %, 10 % + 10 %, 5 % + 12.5