- Open Access
- Authors : Kalki E, Keshikasri R, Dharshini R, A. Oorkalan
- Paper ID : IJERTCONV10IS09040
- Volume & Issue : ICONNECT – 2022 (Volume 10 – Issue 09)
- Published (First Online): 05-08-2022
- ISSN (Online) : 2278-0181
- Publisher Name : IJERT
- License: This work is licensed under a Creative Commons Attribution 4.0 International License
Experimental Study on Partial Replacement of Fine Aggregate by using Agro Waste in PCC
1 Kalki E
Student, Department of Civil Engg, K.Ramakrishnan College of Technology, Trichy-12, india.
2 Keshikasri R
Student, Department of Civil Engg, K.Ramakrishnan College of Technology, Trichy-12, india.
3Dharshini R
Student, Department of Civil Engg, K.Ramakrishnan College of Technology, Trichy-12, india.
4A. Oorkalan,
Assistant professor, Department of Civil Engg, K.Ramakrishnan College of Technology, Trichy-12, india.
Abstract:- Partial replacement of fine aggregate by agro product. Agro waste are used for partially replacement of fine aggregate. This pape discuss a study on the use of agro waste as partial replacement of fine aggregate in PCC. When agro waste is added to the concrete the compressive strength of concrete is found to reduce marginally. However, This marginally reduction can obtain with applicable percentage of addition thereby satisfaction result can be achieved. It is also result in lower consumption of natural material in the manufacture process in concrete thereby resulting in environmentally friendly and cheaper.
Keywords; Agro waste, PCC,Fine Aggregate, Partial Replacement.
-
INTRODUCTION
Concrete is mixture of cement ,Fine Aggregate, Coarse Aggregate and Water in are all natural resource .This paper presents the studies of conducts strength of characteristic of PCC with agro waste of coconut rachis .cubes casting with % of 20,25,30 of fine aggregate with cement, sand, coarse aggregate. Compared with PCC cubes with standardized proportion. Increased consumption create as scarcity motivates us to look for alternate materials which are easily available in abundanceand economically better economically better and environmentally less polluted .Generally more study is needed for long term durability properties of this type of concrete.
Fig 1 coconut rachis
D. Water Cement Rachis
Typically water cement ratio is used in different grades of concrete to bond the mixture it varies between 0.40 to 0.60.
Table -1 Mix design ratio
Cement(kg)
Fine aggregate(kg/m3)
Coarse aggregate(kg/m3)
Water(lit)
54
21.92
162.5
24.3
1
1.5
3
0.45
RACHIS
Perentage (%)
20
25
30
kg
1.35
1.68
2.01
Table -2 Percentage of rachis
-
Cement
-
-
MATERIAL USED:
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PROPERITIES OF MATERIALS
The commonly used cement is Portland Pozzolana Cement with grade 43.
-
Sand
It is a granular material which is loose and obtained from the crushing of quarry or if is also taker from the river.
-
Rachis
It is obtained from the coconut tree. We make it is dry state and grinded to fine aggregate
Tests
Coarse Aggregate
Fine Aggregate
Cement
Rachis
specific gravity
2.8
2.7
3.15
2.19
Water absorption (%)
1.07
0.6
–
3
Abrasion (%)
30
–
–
–
Table-3 Properties of material
-
Specific gravity test
In this test materials are required to know the density of water in the material for getting good quality of materials.
-
Sieve analysis
It is also known gradation test, where it determines the aggregate particle by all size with given sample of distribution.
-
Abrasion test
-
In this test it measure the size of aggregate ,toughness of aggregate and resistance like crushing ,disintegration and degradation.
-
-
PROPERITIES OF CONCRETE
A. Fresh concrete test
-
Vee bee consitometer
It is test which measure the change a concrete of mass from one fine shape to another cylinder by means of vibrates
-
Flow table test
It is a method to find the consistency of fresh concrete and also identify workability moisture limits in the concrete.
Table 4 Flow table test
Table 5 Slump cone test
% of rachis
w/c ratio
slump value(mm)
20
0.45
139
25
0.45
147
30
0.45
168
B. Hardened concrete test
-
Compression test
This test is which a specimen experiences the compressing force that enters upon the specimen from the opposite side. It will squash or crushed or smashed.
Table 6 compression test for cube
normal
16.26
22.29
14 days(kg/m)
28 days(kg/m)
20% of rachis
15.26
20.96
25% of rachis
18.96
26.28
30% of rachis
19.70
28.28
30
25
20
15
10
5
0
Table 7 compression test for cylinder
% of rachis
% of flow
20
60
25
54
30
64
C. Slump cone test
It is also measure the consistency of workability of the concrete before it sets. It can also be identify the improperly mixed proportion of the batch. In this there are only three types values is taken in this test they are:
-
True slump
-
Shear slump
-
Collapsed slump
Fig 5 Slump test
normal
15.77
7 days(kg/m)
20% of rachis
15.63
25% of rachis
15.58
30% of rachis
15.74
22.29
16.26
14th Day 28th Day
Compressive
strength(N/mm²)
Fig 7 Conventional concrete for compressive strength
20.96
15.48
30
25
Compressive
strength(N/mm²)
20
15
10
5
0
14th Day 28th Day
30
25
20
15
10
5
0
18.93
Compressive
strength(N/mm²)
Fig 8 20% of rachis for compressive strength
26.28
14th Day 28th Day
Fig 9 25% of rachis for compressive strength
-
-
Split tensile test
It is also referred as Brazillian test is notch performed on 150mm iameter, 300mm long cylindrical specimen .It is given a diametric suppressive load along the total length until failure occurs.
-
stress strain curve
It is a relationship between stress and strain of the specimen where the load is gradually applied to measure the deformation from which stress and strain can be determined separately.
-
-
CONCLUSION
-
It is fire resistance it can be use in rural housing
-
It has lesser strength concrete
-
It may be used partition wall ,Thermal insulation, Sound insulation ,floor finish etc.,
-
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REFERENCE
T. K., & Anilkumar, V. (2020, June). Strength of concrete with wood ash and waste glass as partial replacement materials. In IOP Conference
Series: Earth and Environmental Science (Vol. 491, No. 1, p. 012040). IOP Publishing.
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