EFFECT OF LATHE WASTE EFFECT OF LATHE WASTE FIBRE ON CEMENT CONCRETE FIBRE ON CEMENT CONCRETE VENKATESH.A VENKATESH.A Guide Guide Miss.K.Kaviya Miss.K.Kaviya Lecturer/Civil Engineering Lecturer/Civil Engineering
Effect of Lathe Waste Review 1
Dec 27, 2015
The experimental analysis of increasing strength of concrete by adding steel fiber waste collected from lath.
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EFFECT OF LATHE WASTEEFFECT OF LATHE WASTEFIBRE ON CEMENT CONCRETEFIBRE ON CEMENT CONCRETE
VENKATESH.AVENKATESH.A
GuideGuide
Miss.K.Kaviya Miss.K.Kaviya
Lecturer/Civil EngineeringLecturer/Civil Engineering
ABSTRACTABSTRACT This project deals with the effect of locally available lathe waste This project deals with the effect of locally available lathe waste steel fibre in the M30 Grade of concrete. The plain concrete steel fibre in the M30 Grade of concrete. The plain concrete posses very low tensile strength, limited ductility and little posses very low tensile strength, limited ductility and little resistance to cracking. Internal micro cracks are inherently resistance to cracking. Internal micro cracks are inherently present in the concrete and its poor tensile strength is due to the present in the concrete and its poor tensile strength is due to the propagation of such micro cracks, evenly leading to brittle propagation of such micro cracks, evenly leading to brittle fracture of the concrete. To avoid the disadvantage of the plain fracture of the concrete. To avoid the disadvantage of the plain cement concrete . An experimental study has been conducted cement concrete . An experimental study has been conducted with the lathe waste of 0.5% and 1% to the total volume of mix to with the lathe waste of 0.5% and 1% to the total volume of mix to enhance the compressive, flexural and split tensile strength of the enhance the compressive, flexural and split tensile strength of the concrete. By using this lathe waste steel fibre in the concrete, the concrete. By using this lathe waste steel fibre in the concrete, the behavior efficiency of this composite material is far superior to behavior efficiency of this composite material is far superior to that plain cement concrete and it improves strength of concrete.that plain cement concrete and it improves strength of concrete.
OBJECTIVEOBJECTIVE
To determine the effect of lathe waste on the properties To determine the effect of lathe waste on the properties of concrete using M30 grade of concrete.of concrete using M30 grade of concrete.
SCOPE SCOPE 1. The main scope of our project is to determine the 1. The main scope of our project is to determine the
properties concrete using with and without of lathe waste properties concrete using with and without of lathe waste fibres. fibres.
2. While adding the lathe waste fiber in the concrete to 2. While adding the lathe waste fiber in the concrete to reduce the internal micro cracksreduce the internal micro cracks
3. By using lathe waste in the concrete leads to 3. By using lathe waste in the concrete leads to effective management of waste fibers. effective management of waste fibers.
LITERATURE REVIEWLITERATURE REVIEW
Sekar.T . Sekar.T . By adding the lathe waste fibres in By adding the lathe waste fibres in the concrete it will increase the compressive the concrete it will increase the compressive strength and the split tensile strength of the strength and the split tensile strength of the concrete.concrete.
Balasubramanian .K, Balasubramanian .K, et.al., The addition of et.al., The addition of lathe fibres to concrete effectively improves lathe fibres to concrete effectively improves the shear strength of concrete. A fibers the shear strength of concrete. A fibers improves tensile stresses across crack surfaces. improves tensile stresses across crack surfaces.
Tavakoli.M , Tavakoli.M , Lathe waste Steel fibres plays an Lathe waste Steel fibres plays an important role in concrete structures for example, important role in concrete structures for example, reinforcing in PCC pavements holds cracks together reinforcing in PCC pavements holds cracks together reinforcement may also eliminate the use of joints in reinforcement may also eliminate the use of joints in pavement-potentially producing a longer lasting, pavement-potentially producing a longer lasting, smoother riding surface. These same qualities are also smoother riding surface. These same qualities are also desirable in reinforced concrete drainage structures. desirable in reinforced concrete drainage structures. ensuring high aggregate interlock exists across the ensuring high aggregate interlock exists across the pavement.pavement.
• Lars Kutzing , Lars Kutzing , The experimental results clarify the The experimental results clarify the enormous influence of steel fibres on the shear capacity of enormous influence of steel fibres on the shear capacity of slender beams. In further calculations various suggestions slender beams. In further calculations various suggestions should be checked with regard to the applicability to the should be checked with regard to the applicability to the SFRC. Some new investigations concerning the calculation of SFRC. Some new investigations concerning the calculation of fracture energy as well as the influence of fibres to the dowel fracture energy as well as the influence of fibres to the dowel action will be performed .The transfer to the punching action will be performed .The transfer to the punching behavior of SFRC plates will be done as well as some new behavior of SFRC plates will be done as well as some new applications for steel fibres reinforced concrete structures will applications for steel fibres reinforced concrete structures will be developed. In this case a connection between the ductile be developed. In this case a connection between the ductile HPC columns and the above mentioned punching and shear HPC columns and the above mentioned punching and shear phenomena would be desirable. Suggestions are already in the phenomena would be desirable. Suggestions are already in the planning and will be introduced in following articlesplanning and will be introduced in following articles next next year.year.
Ganesh Ganesh et,al,et,al,Steel fibre reinforced concrete (SFRS) is defined as Steel fibre reinforced concrete (SFRS) is defined as a mortar or concrete, containing discontinuous discrete steel a mortar or concrete, containing discontinuous discrete steel fibres, which are pneumatically projected at high velocity onto a fibres, which are pneumatically projected at high velocity onto a surface. Steel fibres are incorporated in the concrete to improve its surface. Steel fibres are incorporated in the concrete to improve its crack resistance, ductility, energy absorption and impact crack resistance, ductility, energy absorption and impact resistance characteristics. resistance characteristics.
Steel fibre reinforced concrete has gained widespread use in Steel fibre reinforced concrete has gained widespread use in applications such as the following:applications such as the following:
• Rock slope stabilization and support of excavated foundations, Rock slope stabilization and support of excavated foundations, oftenoften
• in conjunction with rock and soil anchor systems;in conjunction with rock and soil anchor systems;
• Industrial floorings, road pavements, warehouses, Channel linings, Industrial floorings, road pavements, warehouses, Channel linings, protect bridge. abutments and stabilize debris flow prone creeks;protect bridge. abutments and stabilize debris flow prone creeks;
• Rehabilitation of reinforced concrete in structuresRehabilitation of reinforced concrete in structures
MATERIAL AND MIX DESIGNMATERIAL AND MIX DESIGN
MATERIAL AND METHODS:MATERIAL AND METHODS: CEMENT:CEMENT:
Standards consistency Standards consistency test ,Fineness test (By sieving), Specific gravity test , test ,Fineness test (By sieving), Specific gravity test , Lechatlier Expansion test for the 53 grade cement.Lechatlier Expansion test for the 53 grade cement. FINE AGGREGATE:FINE AGGREGATE:
Locally available river sand was Locally available river sand was used as the fine aggregate, which as the particle size used as the fine aggregate, which as the particle size distribution corresponding to ZoneII. The specific distribution corresponding to ZoneII. The specific gravity of sand was found to be 2.67, Sieve analysis gravity of sand was found to be 2.67, Sieve analysis of the fine aggregate , Specific gravity of fine of the fine aggregate , Specific gravity of fine aggregate test conducted.aggregate test conducted.
COURSE AGGREGATECOURSE AGGREGATE
Hard broken stones obtained from local Hard broken stones obtained from local quarry were used as coarse aggregate . The quarry were used as coarse aggregate . The course aggregate was sieved in such way that course aggregate was sieved in such way that aggregate passing through 20mm sieve and aggregate passing through 20mm sieve and retained in 12.5mm sieve was used for the entire retained in 12.5mm sieve was used for the entire experimental work . The specific gravity of course experimental work . The specific gravity of course aggregate was experimentally tested .aggregate was experimentally tested .
MIX DESIGN FOR M30 GRADE OF MIX DESIGN FOR M30 GRADE OF CONCRETECONCRETE
WATERWATER CEMENT CEMENT FINEFINE
AGGREGATEAGGREGATECOURSE COURSE
AGGREGATEAGGREGATE
185.40 185.40 412KG 412KG 477.56Kg/m³ 477.56Kg/m³ 1375Kg/m³1375Kg/m³
Or 0.45Or 0.45 11 1.16 1.16 3.34 3.34
EXPERIMENTAL STUDYEXPERIMENTAL STUDY
DIMENSION OF THE SPECIMENSDIMENSION OF THE SPECIMENS In this experimental work, a total of 24 numbers of In this experimental work, a total of 24 numbers of
concrete specimens were cast with and without lathe concrete specimens were cast with and without lathe waste steel fibres .The specimens considered in this study waste steel fibres .The specimens considered in this study consisted of 18 numbers of 100mm side cube, 3 numbers consisted of 18 numbers of 100mm side cube, 3 numbers of 150mm diameter and 300mm long cylinders and 3 of 150mm diameter and 300mm long cylinders and 3 numbers of 100mm x 100mm x 500mm size of beams. numbers of 100mm x 100mm x 500mm size of beams. METHOD OF MIXING METHOD OF MIXING
The nominal mix proportion used for casting 1: 1.16: The nominal mix proportion used for casting 1: 1.16: 3.34 and water cement ratio of 0.45%.The lathe waste 3.34 and water cement ratio of 0.45%.The lathe waste fibre of 0.5% and 1% to the specimens. Cement, sand and fibre of 0.5% and 1% to the specimens. Cement, sand and course aggregate were mixed in dry state using course aggregate were mixed in dry state using laboratory mixer and then fibre were added required laboratory mixer and then fibre were added required quantity and mixed thoroughly. The testing of cubes was quantity and mixed thoroughly. The testing of cubes was done 3, 7, 28, days of curing. And the cylinder and the done 3, 7, 28, days of curing. And the cylinder and the beams are tested after 28 days of curing.beams are tested after 28 days of curing.
CHAPTER-5CHAPTER-5 RESULT AND DISCUSSTION RESULT AND DISCUSSTION
The test results are given in the form of The test results are given in the form of graphs and tables. Table 5.1 shows the graphs and tables. Table 5.1 shows the variation of strength of concrete by adding variation of strength of concrete by adding lathe waste fibre into the concrete.lathe waste fibre into the concrete.
When the lathe waste of 0.5% & 1% When the lathe waste of 0.5% & 1%
added to M30 grade of concrete it increases added to M30 grade of concrete it increases the compressive strength, split tensile the compressive strength, split tensile strength, Flexural strength of the concrete strength, Flexural strength of the concrete members. Further more increase of the lathe members. Further more increase of the lathe waste fibres on the concrete witch leads to the waste fibres on the concrete witch leads to the increase of strength of concrete members.increase of strength of concrete members.
TABLE 5.1 VARIATION OF STRENGTH OF TABLE 5.1 VARIATION OF STRENGTH OF CONCRETECONCRETE
Sl.noSl.no Type of Type of concreteconcrete
COMPRESSIVE COMPRESSIVE STRENGTH IN STRENGTH IN
N/mm2 N/mm2
SPLIT TENSILE SPLIT TENSILE STRENGTH IN STRENGTH IN
N/mm2 N/mm2
FLEXTURAL FLEXTURAL STRENGTH STRENGTH
TEST IN TEST IN N/mm2 N/mm2
CURING CURING DAYS DAYS
--3 7 283 7 28 2828 2828
1.1.
P.C.CP.C.C 10 20 10 20 2929
2.62.6 0.980.98
2.2. Lathe Lathe waste fibre waste fibre
0.5%0.5%
15 24 15 24 3131
3.43.4 1.21.2
3.3. Lathe Lathe waste fibre waste fibre
1 % 1 %
15 25 15 25 34 34
3.93.9 1.41.4
COMPRESSIVE STRENGTH OF CONCRETE
0
5
10
15
20
25
30
35
40
CURING OF CONCRETE IN DAYS
ST
RE
NG
TH
OF
CO
NC
RE
TE
IN
N/M
M2
PLAINCONCRETE
LATHE WASTEFIBRE 0.5%
LATHE WASTEFIBRE 1%
SPLIT TENSILE STRENGTH IN N/MM2
2.63.4
3.9
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
FIBRE CONTENT IN %
SP
LIT
TE
NS
ILE
ST
RE
NG
TH
IN
N/M
M2
Series1
FLEXURAL STRENGTH IN N/MM2
0.981.2
1.4
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
FIBRE CONTENT IN %
FLE
XU
RA
L S
TR
EN
GT
H IN
N/M
M2
Series1
LATHE WASTE FIBERLATHE WASTE FIBER
COMPERSIVE TESTCOMPERSIVE TEST
SPLIT TENSION TESTSPLIT TENSION TEST
FLEXTURAL TESTFLEXTURAL TEST
CONCLUTIONCONCLUTIONBased on the result it is possible to make lathe waste fibre Based on the result it is possible to make lathe waste fibre reinforced concrete with higher compressive strength by reinforced concrete with higher compressive strength by increasing the lathe waste. It enhances the flexure and the split increasing the lathe waste. It enhances the flexure and the split tensile strength of the concrete by increasing the lathe waste. tensile strength of the concrete by increasing the lathe waste. Higher strength to weight ratio will be useful for the design of Higher strength to weight ratio will be useful for the design of cost effective structure. Since the lathe waste fibre is better cost effective structure. Since the lathe waste fibre is better than the plain concrete than the plain concrete
SUGGESTIONSUGGESTION By using the lathe waste fibres on the concrete, it improves the By using the lathe waste fibres on the concrete, it improves the
compressive strength, split tensile, flexural strength. So it is compressive strength, split tensile, flexural strength. So it is suitable for industrial flooring and road pavement, etc.suitable for industrial flooring and road pavement, etc.
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