ISBN: 378-26-138420-01
INTERNATIONAL CONFERENCE ON CURRENT TRENDS IN ENGINEERING RESEARCH, ICCTER - 2014
ADVANCED CONSTRUCTION MATERIALS Viknesh.J, Shankar Narayan.R B.Tech (civil department) Sri Manakula Vinayagar Engineering College, Pondicherry Ph: 8220782967 e-mail id: uniquevicky12@gmail.com
Abstract- This paper is intended to replace the usage of cement by using bagasse, lime and flyash. The main aim is to promote the composite materials in construction and to provide high strength within a short period of time than a normal OPC. The composites in concrete mixture were altered. The proportions are varied with respect to fly ash, lime, bagasse in cement as replacement. Different varied compositions has been made and they has been tested under an UTM which had gained a good result with more strength. I.
II.
SCOPE
The main aim of this project is to promote the use of lime and the industrial waste products such as fly ash and bagasse.
To encourage housing developers in investing these materials in house construction.
To compare the cost incurred and strength characteristics of concrete produced using fly ash, lime along with cement as replacement in proportion.
INTRODUCTION
Requirement for economical and environmentfriendly materials has extended an interest in natural fibers. Most of the natural fibers, like softwood pulp and banana fibers have been used as reinforcement materials in cement composite products. In this work, natural sugar cane bagasse have been utilised for similar study. Bagasse is a fibrous residue obtained from sugar cane during extraction of sugar juice. Sera and co-workers studied the effect of reinforcing concrete with bagasse fibers. The main aim of this paper is to promote composite materials in construction which provides high strength
III.
MATERIALS
Fly ash is produced as a byproduct of coal industry in tones.
There are three types of fly ash.(fly ash F, fly ash N, fly ash C)
Fly ash C is of more alkaline and sulphate nature.
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ISBN: 378-26-138420-01
INTERNATIONAL CONFERENCE ON CURRENT TRENDS IN ENGINEERING RESEARCH, ICCTER - 2014
So we chose fly ash F which is available more.
•
The chemical compositions such as silicates and aluminates present in fly ash, bagasse and cement were compared.
•
Lime is added as an hydrating agent to the fly ash cement mixture as it is rich in calcium oxide.
CEMENT
CHEMICAL POZZOLAN TYPE Baggase
COMPOUND CLASS CLASS C CLASS N F
Fly ash
IV.
LITERATURE STUDY LITERATURE ANALYSIS •
•
SiO2
54.90
39.90
58.20
22.60
A12O3
25.80
16.70
18.40
4.30
Fe2O3
6.90
5.80
9.30
2.40
CaO
8.70
24.30
3.30
64.40
MgO
1.80
4.60
3.90
2.10
SO3
0.60
3.30
1.10
2.30
Na2O & K2O 0.60
1.30
1.10
0.60
AND
The replacement of 15% bagasse ash in cement with respect to their weight gave relatively equal strength when compared to ordinary Portland cement.(Ref.1) The replacement of 20% fly ash in cement with respect to their weight gave equal strength to that of ordinary Portland cement.
DESIGN MIXTURE •
The design mixture is based on 1:2:4 ratio.
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ISBN: 378-26-138420-01
INTERNATIONAL CONFERENCE ON CURRENT TRENDS IN ENGINEERING RESEARCH, ICCTER - 2014
•
The gravel of 20mm size is taken as coarse aggregate.
•
The river bed sand is taken as fine aggregate.
•
A Design cube of 85mm sides is taken as sample piece to test for 14 and 28 days curing periods.
•
Ordinary Portland cement is used.
•
Bagasse ash used is in the form of fibre.
The above picture shows , during the curing period of composite mixture
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This picture shows the concrete block after hardening
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ISBN: 378-26-138420-01
INTERNATIONAL CONFERENCE ON CURRENT TRENDS IN ENGINEERING RESEARCH, ICCTER - 2014
COMPRESSION TEST Cube No
This picture shows the concrete block during compression test under an UTM
14 Days
28 Days
(N/mm2 )
(N/mm2 )
1
1.72
4.81
2
3.61
4.41
3
2.15
3.61
4
1.41
3.63
VARIED COMPOSITIONS Cube No
Composition
5
0.78
0.88
1
100% cement
6
0.12
0.23
2
80% cement, 20% fly ash (Ref.1)
7
0.28
0.48
8
4.08
4.91
3
85%cement, 15% bagasse (Ref.2)
4
70%cement, 15% fly ash, 7% bagasse, 8%lime
5
60% lime, 40% fly ash
6
65%lime , 35% bagasse
7
40%lime,20%bagasse, 40% fly ash
8
47%cement, 30% fly ash, 20% lime,3% bagasse
GRAPH
N/MM
6 4 2 0
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14 DAYS 28 DAYS
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ISBN: 378-26-138420-01
INTERNATIONAL CONFERENCE ON CURRENT TRENDS IN ENGINEERING RESEARCH, ICCTER - 2014
V.
INFERENCE •
The blocks of varied proportions are casted and tested.
•
Block 1 and Block 8 gave more relative compressive strength.
•
Here in Block 8 the usage of cement is almost reduced to nearly 50%.
VI.
CONCLUSION •
The experimental Behavior of Concrete Beams with lime, cement and fly ash in varied proportions are tested.
•
The overall compressive and flexural behaviour of (lime, cement and fly ash mix) concrete beams used in this study produces more strength when compared to ordinary Portland cement beams in this report experimentally.
•
Hence I conclude by saying that this type of procedure can replace nearly 50% of usage of cement and also reduces the carbon-di-oxide emission.
VII.
REFERENCE •
1. International Journal for Service Learning in Engineering.
Vol. 5 - No. 2 - pp. 60-66, Fall 2010. ISSN 1555-9033 •
2. flyash.sustainablesources.com
•
http://www.flyash.com/data/upimages/p ress/TB.2%20Chemical%20Comparison %20of%20Fly%20Ash%20and%20Portl and%20Cement.pdf
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