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International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 09 Issue: 03 | Mar 2022 www.irjet.net p-ISSN: 2395-0072
© 2022, IRJET | Impact Factor value: 7.529 | ISO 9001:2008 Certified Journal | Page 719
An Experimental Investigation on Self Curing Self Compacted Concrete
Poonam V. Chavan1, Dr. P. O. Modani2
1Student, M. E. Structure, Dept of Civil Engineering, PLITMS Buldana, Maharashtra, India
2Professor, Dept of Civil Engineering, PLITMS Buldana, Maharashtra, India
---------------------------------------------------------------------***----------------------------------------------------------------------
Abstract - The objective of the investigation is to study the
strength characteristics of self compacting concrete by using
self curing agent. To study concrete mix with and without Self
curing agent were subjected to different types of curing i.e.
conventional(water curing) and self curing(Air curing). Self-
curing is perform which will satisfy the water requirementsof
concrete while self-compacting concrete is ready so that it
may be placed in tough position & in congestedreinforcement
present. This experimental work was aimedtomakeuseof the
benefits of both self curing concrete in addition with self
compacting concrete. This research discuss the compressive
and split tensile strength of the concrete. Self Curing Self
Compacted concrete (SCSCC) usage of water soluble
Polyethylene glycol (PEG) of molecular weight 4000 (PEG
4000). The mix design for the M60 grade is accomplished
using the Nansu method. In this layout, super plasticizer is
added at a dosage of 1.2 percent. The percentageofself-curing
agent used from 0, 0.5, 0.1, 1.5 and 2 percent by weight of
cement and fly ash at 4.89 percent by weightofconcrete.From
the experimental result is observed that optimal dosage PEG
4000 is achieved at one percent being maximum strength. Itis
also observed, the increase in PEG4000 dosage decreases the
strength of concrete mix.
Key Words: Self Compacting Concrete, Self Curing
Concrete, Polyethylene Glycol,PEG 4000,SelfCuringSelf
Compacted Concrete (SCSCC)
1.INTRODUCTION
Self-compacting concrete (SCC) is a mixture of flowing
concrete that is able to compact under its own weight. The
highly liquid nature of the SCC makes it suitable for
placement in harsh conditions and in a phase with high
reinforcement. The use of SCC can also help reduce hearing-
related damage in the workplace caused by concrete
vibrations. The advantage of the SCC is that the time
required to install large components is greatly reduced. [1]
As water becomes a daily threat, there is an urgent need to
conduct research on savingofwaterinconcreteconstruction
and the curing. The treatmentretainsa satisfactoryhumidity
in its original state in order to improve the desirable
features. However, effectivetreatmentdoesnotalwayswork
in most cases. Self-adhesive or internal healing is a method
that can be used to provide additional moisture to the
concrete to obtain an effective flow of cement and to reduce
isolation. Internal treatment means the introduction of a
treatment agent in concrete that will act as an internal water
source. The role of self curing agent is reducing water
evaporation in concrete mix. [2] Subsistence refers to the
process by which the flow of cement occurs due to the
availability of additional internal water thatisnotpartofthe
mixing Water. Typically, curing concrete means creating
conditions so that water is not lost from the surface that is,
curing is considered to occur from the outside to the inside.
In contrast, self curing allows for curing from the inside to
out. [3]
2. EXPERIMENTAL METHODOLOGY
This chapter deals with the experimental program
particulars. The materials used, concrete mix details and
casting procedures are explained.
2.1 Materials:
Cement:
Cement is one of the important constituents of mortar.
Ordinary Portland cement was used confirming to IS
12269:1987 [5]. The specific gravity of the cement 3.16;
initial setting time and final setting time were 35 minutes
and 560 minutes.
Fine Aggregate (FA):
The fine aggregate was used from river locally available,
confirming to IS383:1970 [4]. The specific gravity of FA was
2.7 and bulk density was 1560.
Coarse Aggregate (CA):
The Coarse aggregate of 10mm size was used confirming to
IS 383:1970. [4]. The specific gravity used was 2.6 and bulk
density was 1505.
Fly ash:
In this experimental work, the specific gravity of Fly ash
was used is 2.8 and of grey colour.
Polycarboxylate Ether (Super Plasticizer):
The high range water reducing admixture commonly known
as super plasticizer, which used for improving the flow or
workability for decreased water cement ratio without
sacrificing the compressive strength.
Polyethylene Glycol-4000:
The Polyethylene glycol is condensation polymer of the
ethylene oxide and water H2O. The general formula for
polyethylene glycol is given by H(OCH2CH2)nOH, where nis
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 09 Issue: 03 | Mar 2022 www.irjet.net p-ISSN: 2395-0072
© 2022, IRJET | Impact Factor value: 7.529 | ISO 9001:2008 Certified Journal | Page 720
a average number of repeatingoxy-ethylenegroupstypically
from 4 to about 180. Before adding of water in concrete the
chemicals were mixed with waterthoroughly.Themolecular
weight of polyethylene glycol-4000was3600– 4400andthe
physical form was of white flakes, water soluble.
Water:
In this experimental work, Potable water was used.
2.2 Mix Design
There is no standard method for SCC mix design. The blend
design for the M60 grade is accomplished using the Nansu
method. Super plasticizer polycarboxylate ether is at a
dosage of 1.2 percent in this layout. The fly ash admixtures
are added to the blend at 4.87% by weight of concrete and
PEG 4000 at 0, 0.5 to 2% by weightofcement. Water/cement
ratio was 0.40. After trial mixes, final mix proportion
adopted in this study is given in Table 1
Table -1: Final Mix Design per m3 of Concrete for M60
2.2 Test on Concrete
Tests for Fresh Properties of Concrete
Slump cone test, V funnel and L box test were conducted to
measure the workability of concrete mix IS specification.
Tests for Hardened Properties of Concrete
Compressive Strength Test
The compressive strength test was conductedasperIS516–
1959, cubes of size 150mm x150mm x150mm using a
compression testing machine(CTM).Thetestwasconducted
on both conventional concrete as well on self curing
concrete with varying % of PEG-4000.
4 Split Tensile Strength Test
The spilt tensile strength test was carried out by placing a
cylindrical specimen of size 300mm in height and of 150
mm diameter.
3. RESULT AND DISSCUSION
3.1 Detail of specimen:
Following Table 2 shows the six mixes used in this
experiment with varying proportion of PEG4000.
Table-2: Details of specimen
3.2 Test Results:
Workability Test:
The workability test results of various dosages of
Polyethylene Glycol 4000 are shown in Table 3.
Table-3: Test result of workability test
Test M1 M2 M3 M4 M5 M6
Slump
flow test
650 635 630 640 645 650
L-box 0.7 0.7 0.72 0.75 0.78 0.8
V-
funnel
12 14 14 13 12 10
Compressive Strength Test:
The compressive strength test results of various dosages of
Polyethylene Glycol 4000 are as shown in Table 4.
Cement
(kg/m3)
Fly ash
(kg/m3)
FA CA
Water
(lit/m3)
Super
plasticizer
(%)
390 120 1100 810 204 1.2
Mixes
Percentage of
PEG4000
Type of curing
M1 PEG 0% (WC)
Traditional curing(Water
Curing)
M2 PEG 0% (AC)
Traditional curing (Air
Curing)
M3 PEG 0.5% Self curing
M4 PEG1% Self curing
M5 PEG 1.5% Self curing
M6 PEG 2% Self curing
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 09 Issue: 03 | Mar 2022 www.irjet.net p-ISSN: 2395-0072
© 2022, IRJET | Impact Factor value: 7.529 | ISO 9001:2008 Certified Journal | Page 721
Table-4: Test results of Compressive strength
Split Tensile Strength Test:
The spilt tensile strength test results of various dosages of
Polyethylene Glycol 4000 are shown in Table 5.
Table-5: Test results of Split Tensile strength
4. CONCLUSIONS
From this experimental study, the following findings are
observed:
1. The use of self-curing agent in concrete increases the
strength characteristics of concrete under an air curing
system is gives the better retention of water and causes
continuous hydration of cement paste resulting inreduction
in voids .
2. It has been observed that 2% PEG4000 provides a lower
compressive and split tensile strength comparedto1%PEG.
3. So it is found that addition of PEG at a high dose of over
1% of cement would not give the expected strength and
practically not applicable.
4. Compared to conventional curing concrete, settingtimeof
SCSCC is slow with increase in PEG dosage.
5. In this experiment, 1 percent of PEG gives better result as
compared to 0.5%, 1.5%, 2% of PEG as a self curing agent.
6. In desert regions, Self curing concrete is an option to
conventional cure concrete where water shortages are
major problem.
ACKNOWLEDGEMENT
It gives me the great pleasure in presenting the Paper titled
as “An Experimental Investigation on Self Curing Self
Compacted Concrete”. I would like to thank my guide Dr. P.
O. Modani for giving me help and guidance I needed. I am
really grateful to them for kind support and their valuable
suggestions. I would also like to take this opportunity to
thanks my parents for their constant support. And lastly I
would like to thank all those who directly or indirectly
helped me throughout my project work.
REFERENCES
[1] Dinesh. A, Harini. S Jasmine Jeba.P, The Experimental
Study On Self Compacting Concrete, International
Journal Of Engineering Sciences&ResearchTechnology,
March, 2017.
[2] Akshara O.S & Divya Sasi, Experimental Study on
Mechanical Properties of Self Curing Concrete,
International Journal of Scientific & Engineering
Research, Volume 7, Issue 10, October-2016
[3] Mr. Shailesh Vetal and Swapnali Kunjir, The Internal
curing of self compacted concrete by using polyethylene
glycol, International Journal of Engineering Research &
Technology Vol. 5 Issue 03, March-2016
[4] V Mallikarjuna Reddy and Rathod Praveen, The Effectof
Polyethylene Glycol in Self-Curing of Self Compacting
Concrete ,International Journal of Recent Technology
Engineering, Volume-8 Issue-3, September 2019
[5] Bopardikar M. Satish and A. Sofi, Studies on properties
of internal sealing of self-compacting concrete using
polyethylene glycol Article in Indian Concrete Journal ·
January 2018
[6] Dadaji B. Jadhav and Ranjana Ghate, A Study On Self-
Curing And Self-Compacting Concrete Using
Polyethylene Glycol, International Research Journal of
Engineering and Technology 04 Issue: 02 | Feb -2017
[7] Elba Helen George and Anisha Mariya Paul, on Self-
Compacting Self Curing Concrete: Review, International
Research Journal of Engineering and Technology 05
Issue: 11 | Nov 2018.
Details of the specimen
Compressive strength
(N/mm2)
7 days 28 days
PEG 0% Traditional curing 48 69.5
PEG 0% Self Curing 23 38
PEG 0.5% Self curing 31 44
PEG1% Self curing 49 70
PEG 1.5% Self curing 43 62.5
PEG 2% Self curing 36 54
Details of the specimen
Compressive strength
(N/mm2)
7 days 28 days
PEG 0% Traditional curing 4.3 6.3
PEG 0% Self Curing 3.3 4.5
PEG 0.5% Self curing 4.4 5.3
PEG1% Self curing 4.8 6.7
PEG 1.5% Self curing 4.5 5.9
PEG 2% Self curing 3.6 5.1

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An Experimental Investigation on Self Curing Self Compacted Concrete

  • 1. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 09 Issue: 03 | Mar 2022 www.irjet.net p-ISSN: 2395-0072 © 2022, IRJET | Impact Factor value: 7.529 | ISO 9001:2008 Certified Journal | Page 719 An Experimental Investigation on Self Curing Self Compacted Concrete Poonam V. Chavan1, Dr. P. O. Modani2 1Student, M. E. Structure, Dept of Civil Engineering, PLITMS Buldana, Maharashtra, India 2Professor, Dept of Civil Engineering, PLITMS Buldana, Maharashtra, India ---------------------------------------------------------------------***---------------------------------------------------------------------- Abstract - The objective of the investigation is to study the strength characteristics of self compacting concrete by using self curing agent. To study concrete mix with and without Self curing agent were subjected to different types of curing i.e. conventional(water curing) and self curing(Air curing). Self- curing is perform which will satisfy the water requirementsof concrete while self-compacting concrete is ready so that it may be placed in tough position & in congestedreinforcement present. This experimental work was aimedtomakeuseof the benefits of both self curing concrete in addition with self compacting concrete. This research discuss the compressive and split tensile strength of the concrete. Self Curing Self Compacted concrete (SCSCC) usage of water soluble Polyethylene glycol (PEG) of molecular weight 4000 (PEG 4000). The mix design for the M60 grade is accomplished using the Nansu method. In this layout, super plasticizer is added at a dosage of 1.2 percent. The percentageofself-curing agent used from 0, 0.5, 0.1, 1.5 and 2 percent by weight of cement and fly ash at 4.89 percent by weightofconcrete.From the experimental result is observed that optimal dosage PEG 4000 is achieved at one percent being maximum strength. Itis also observed, the increase in PEG4000 dosage decreases the strength of concrete mix. Key Words: Self Compacting Concrete, Self Curing Concrete, Polyethylene Glycol,PEG 4000,SelfCuringSelf Compacted Concrete (SCSCC) 1.INTRODUCTION Self-compacting concrete (SCC) is a mixture of flowing concrete that is able to compact under its own weight. The highly liquid nature of the SCC makes it suitable for placement in harsh conditions and in a phase with high reinforcement. The use of SCC can also help reduce hearing- related damage in the workplace caused by concrete vibrations. The advantage of the SCC is that the time required to install large components is greatly reduced. [1] As water becomes a daily threat, there is an urgent need to conduct research on savingofwaterinconcreteconstruction and the curing. The treatmentretainsa satisfactoryhumidity in its original state in order to improve the desirable features. However, effectivetreatmentdoesnotalwayswork in most cases. Self-adhesive or internal healing is a method that can be used to provide additional moisture to the concrete to obtain an effective flow of cement and to reduce isolation. Internal treatment means the introduction of a treatment agent in concrete that will act as an internal water source. The role of self curing agent is reducing water evaporation in concrete mix. [2] Subsistence refers to the process by which the flow of cement occurs due to the availability of additional internal water thatisnotpartofthe mixing Water. Typically, curing concrete means creating conditions so that water is not lost from the surface that is, curing is considered to occur from the outside to the inside. In contrast, self curing allows for curing from the inside to out. [3] 2. EXPERIMENTAL METHODOLOGY This chapter deals with the experimental program particulars. The materials used, concrete mix details and casting procedures are explained. 2.1 Materials: Cement: Cement is one of the important constituents of mortar. Ordinary Portland cement was used confirming to IS 12269:1987 [5]. The specific gravity of the cement 3.16; initial setting time and final setting time were 35 minutes and 560 minutes. Fine Aggregate (FA): The fine aggregate was used from river locally available, confirming to IS383:1970 [4]. The specific gravity of FA was 2.7 and bulk density was 1560. Coarse Aggregate (CA): The Coarse aggregate of 10mm size was used confirming to IS 383:1970. [4]. The specific gravity used was 2.6 and bulk density was 1505. Fly ash: In this experimental work, the specific gravity of Fly ash was used is 2.8 and of grey colour. Polycarboxylate Ether (Super Plasticizer): The high range water reducing admixture commonly known as super plasticizer, which used for improving the flow or workability for decreased water cement ratio without sacrificing the compressive strength. Polyethylene Glycol-4000: The Polyethylene glycol is condensation polymer of the ethylene oxide and water H2O. The general formula for polyethylene glycol is given by H(OCH2CH2)nOH, where nis
  • 2. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 09 Issue: 03 | Mar 2022 www.irjet.net p-ISSN: 2395-0072 © 2022, IRJET | Impact Factor value: 7.529 | ISO 9001:2008 Certified Journal | Page 720 a average number of repeatingoxy-ethylenegroupstypically from 4 to about 180. Before adding of water in concrete the chemicals were mixed with waterthoroughly.Themolecular weight of polyethylene glycol-4000was3600– 4400andthe physical form was of white flakes, water soluble. Water: In this experimental work, Potable water was used. 2.2 Mix Design There is no standard method for SCC mix design. The blend design for the M60 grade is accomplished using the Nansu method. Super plasticizer polycarboxylate ether is at a dosage of 1.2 percent in this layout. The fly ash admixtures are added to the blend at 4.87% by weight of concrete and PEG 4000 at 0, 0.5 to 2% by weightofcement. Water/cement ratio was 0.40. After trial mixes, final mix proportion adopted in this study is given in Table 1 Table -1: Final Mix Design per m3 of Concrete for M60 2.2 Test on Concrete Tests for Fresh Properties of Concrete Slump cone test, V funnel and L box test were conducted to measure the workability of concrete mix IS specification. Tests for Hardened Properties of Concrete Compressive Strength Test The compressive strength test was conductedasperIS516– 1959, cubes of size 150mm x150mm x150mm using a compression testing machine(CTM).Thetestwasconducted on both conventional concrete as well on self curing concrete with varying % of PEG-4000. 4 Split Tensile Strength Test The spilt tensile strength test was carried out by placing a cylindrical specimen of size 300mm in height and of 150 mm diameter. 3. RESULT AND DISSCUSION 3.1 Detail of specimen: Following Table 2 shows the six mixes used in this experiment with varying proportion of PEG4000. Table-2: Details of specimen 3.2 Test Results: Workability Test: The workability test results of various dosages of Polyethylene Glycol 4000 are shown in Table 3. Table-3: Test result of workability test Test M1 M2 M3 M4 M5 M6 Slump flow test 650 635 630 640 645 650 L-box 0.7 0.7 0.72 0.75 0.78 0.8 V- funnel 12 14 14 13 12 10 Compressive Strength Test: The compressive strength test results of various dosages of Polyethylene Glycol 4000 are as shown in Table 4. Cement (kg/m3) Fly ash (kg/m3) FA CA Water (lit/m3) Super plasticizer (%) 390 120 1100 810 204 1.2 Mixes Percentage of PEG4000 Type of curing M1 PEG 0% (WC) Traditional curing(Water Curing) M2 PEG 0% (AC) Traditional curing (Air Curing) M3 PEG 0.5% Self curing M4 PEG1% Self curing M5 PEG 1.5% Self curing M6 PEG 2% Self curing
  • 3. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 09 Issue: 03 | Mar 2022 www.irjet.net p-ISSN: 2395-0072 © 2022, IRJET | Impact Factor value: 7.529 | ISO 9001:2008 Certified Journal | Page 721 Table-4: Test results of Compressive strength Split Tensile Strength Test: The spilt tensile strength test results of various dosages of Polyethylene Glycol 4000 are shown in Table 5. Table-5: Test results of Split Tensile strength 4. CONCLUSIONS From this experimental study, the following findings are observed: 1. The use of self-curing agent in concrete increases the strength characteristics of concrete under an air curing system is gives the better retention of water and causes continuous hydration of cement paste resulting inreduction in voids . 2. It has been observed that 2% PEG4000 provides a lower compressive and split tensile strength comparedto1%PEG. 3. So it is found that addition of PEG at a high dose of over 1% of cement would not give the expected strength and practically not applicable. 4. Compared to conventional curing concrete, settingtimeof SCSCC is slow with increase in PEG dosage. 5. In this experiment, 1 percent of PEG gives better result as compared to 0.5%, 1.5%, 2% of PEG as a self curing agent. 6. In desert regions, Self curing concrete is an option to conventional cure concrete where water shortages are major problem. ACKNOWLEDGEMENT It gives me the great pleasure in presenting the Paper titled as “An Experimental Investigation on Self Curing Self Compacted Concrete”. I would like to thank my guide Dr. P. O. Modani for giving me help and guidance I needed. I am really grateful to them for kind support and their valuable suggestions. I would also like to take this opportunity to thanks my parents for their constant support. And lastly I would like to thank all those who directly or indirectly helped me throughout my project work. REFERENCES [1] Dinesh. A, Harini. S Jasmine Jeba.P, The Experimental Study On Self Compacting Concrete, International Journal Of Engineering Sciences&ResearchTechnology, March, 2017. [2] Akshara O.S & Divya Sasi, Experimental Study on Mechanical Properties of Self Curing Concrete, International Journal of Scientific & Engineering Research, Volume 7, Issue 10, October-2016 [3] Mr. Shailesh Vetal and Swapnali Kunjir, The Internal curing of self compacted concrete by using polyethylene glycol, International Journal of Engineering Research & Technology Vol. 5 Issue 03, March-2016 [4] V Mallikarjuna Reddy and Rathod Praveen, The Effectof Polyethylene Glycol in Self-Curing of Self Compacting Concrete ,International Journal of Recent Technology Engineering, Volume-8 Issue-3, September 2019 [5] Bopardikar M. Satish and A. Sofi, Studies on properties of internal sealing of self-compacting concrete using polyethylene glycol Article in Indian Concrete Journal · January 2018 [6] Dadaji B. Jadhav and Ranjana Ghate, A Study On Self- Curing And Self-Compacting Concrete Using Polyethylene Glycol, International Research Journal of Engineering and Technology 04 Issue: 02 | Feb -2017 [7] Elba Helen George and Anisha Mariya Paul, on Self- Compacting Self Curing Concrete: Review, International Research Journal of Engineering and Technology 05 Issue: 11 | Nov 2018. Details of the specimen Compressive strength (N/mm2) 7 days 28 days PEG 0% Traditional curing 48 69.5 PEG 0% Self Curing 23 38 PEG 0.5% Self curing 31 44 PEG1% Self curing 49 70 PEG 1.5% Self curing 43 62.5 PEG 2% Self curing 36 54 Details of the specimen Compressive strength (N/mm2) 7 days 28 days PEG 0% Traditional curing 4.3 6.3 PEG 0% Self Curing 3.3 4.5 PEG 0.5% Self curing 4.4 5.3 PEG1% Self curing 4.8 6.7 PEG 1.5% Self curing 4.5 5.9 PEG 2% Self curing 3.6 5.1