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International Journal of Trend in Scientific Research and Development (IJTSRD)
Volume 6 Issue 5, July-August 2022 Available Online: www.ijtsrd.com e-ISSN: 2456 – 6470
@ IJTSRD | Unique Paper ID – IJTSRD50601 | Volume – 6 | Issue – 5 | July-August 2022 Page 965
Assessment of Potential of Marble Slurry
as a Mineral Admixture in Concrete
Manisha Parte, Prof. Nitesh Kushwaha, Prof. Afzal Khan
Department of Civil Engineering, Millennium Institute of Technology, Bhopal, Madhya Pradesh, India
ABSTRACT
Marble is a metamorphic rock composed of recrystallized carbonate
minerals, most commonly calcite or dolomite. Marble is typically not
foliated, although there are exceptions. In geology, the term marble
refers to metamorphosed limestone, but its use in stonemasonry more
broadly encompasses unmetamorphosed limestone. Marble is
commonly used for sculpture and as a building material.
Quite a few industrial by-products have found their use as a partial
replacement of cement. Also, they have been found to positively
influence the properties of concrete. Fly ash (FA), silica fume (SF)
and blast furnace slag (BFS) are the by-products of a coal-based
thermal power plant, Ferro-silicone industry, and steel industry,
respectively.
Cement industry all around the world is facing the pressure of
continuously rising demand as there is a need to develop an
enormous amount of infrastructure, such as power plants, roads, and
ports, finding an alternative material, which can partially replace the
cement clinker, are one of the best ways to meet this challenge. The
experimental program, design compositions of the experimental
samples and the methodology adopted to conduct the experimental
trials. In first section material used in making of the cement mortar
and the concrete mixes, and then their physical & chemical
composition are determined. Concrete mix proportions, their design
compositions and mixing procedures are mentioned in the second
section. In the third section the experimental setup, tests adopted,
reference codes used for testing have been discussed in detail.
KEYWORDS: Marble Slurry, Compressive Strength, Tensile Strength,
Concrete Mix, Physical & Chemical Composition, Partial
Replacement
How to cite this paper: Manisha Parte |
Prof. Nitesh Kushwaha | Prof. Afzal
Khan "Assessment of Potential of
Marble Slurry as a Mineral Admixture in
Concrete" Published
in International
Journal of Trend in
Scientific Research
and Development
(ijtsrd), ISSN: 2456-
6470, Volume-6 |
Issue-5, August
2022, pp.965-978, URL:
www.ijtsrd.com/papers/ijtsrd50601.pdf
Copyright © 2022 by author (s) and
International Journal of Trend in
Scientific Research and Development
Journal. This is an
Open Access article
distributed under the
terms of the Creative Commons
Attribution License (CC BY 4.0)
(http://creativecommons.org/licenses/by/4.0)
1. RESULTS AND DISCUSSION
This chapter deals with results and discussion of experimental program conducted in the previous chapter.
Characterization of marble slurry
Table 1.1: Physical and chemical properties of cement and marble dust
Chemical
composition
OPC (%)
Marble dust
(%)
Physical
Properties
OPC
(%)
Marble dust
(%)
SiO2 20.27 3.86
Al2O3 5.32 4.62
Fe2O3 3.56 0.78
Specific gravity 3.15 2.67
CaO 60.41 28.63
MgO 2.46 16.9
Fineness (m2
/kg)
SO3 3.17 - 313 250
LOI 3.55 43.3
IJTSRD50601
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Preliminary data analysis
Test results of coarse aggregates (size – 10mm)
Table 1.2: Aggregate impact value .
SI. NO. Initial weight (gm) Final weight (gm) AIV (%) Avg. AIV (%)
1. 343.5 75.3 21.92
21.23
2. 344.2 70.7 20.54
Table 1.3: Specified limits of percent aggregates impact value for different types of road construction
by Indian road congress (IRC)
SI. NO Pavement type Maximum aggregate impact value
1. Wearing course
30
a) Bituminous surface dressing
b) Penetration macadam
c) Bituminous carpet concrete
d) Cement concrete
2. Bitumen bound macadam base course 35
3. WBM base course with bitumen surfacing 40
4. Cement concrete base course 45
(Source - IS: 383-1970)
The aggregate impact value is found to be 21.23 % which is found to be in the permissible range for the
pavement. This test is done to perform the toughness of the aggregates.
Aggregate plays an important role in pavement construction. Aggregates influence, to a great extent, the load
transfer capability of pavements. Hence it is essential that they should be thoroughly tested before using for
construction
Table 1.4: Aggregate crushing value
SI. NO. Initial weight (gm) Final weight (gm) ACV (%) Avg. ACV (%)
1. 345.2 80.2 23.23
23.67
2. 346.7 83.6 24.11
Table 1.5: Aggregate Crushing Values for Roads and Pavement Construction
SI. No. Types of roads and pavements Aggregates crushing value
1. Flexible pavement
a) Soiling 50
b) Water bound macadam 40
c) Bituminous macadam 40
d)
Bituminous surfacing dressing or thin
premix carpet
30
e) Dense mix carpet 30
2. Rigid pavements
a) Other than wearing course 45
b) Surface wearing course 30
(Source - IS: 383-1970)
The aggregate crushing value is found to be 23.67%, which is suitable for the designing of pavements.
Table 1.6: Specific gravity (G)
SI.
No.
Wt. of
empty
bowl in air
(gm) (I)
Submergd
wt of bowl
(gm) (II)
Wt of
specimen
&bowl in air
(gm) (III)
Submergewt
of bowl &
specimen
(gm) (IV)
Wt of
aggregate
in air (gm)
(III – I)
Wt of
Aggregate in
water (gm)
(IV – II)
Specific
Gravity
(G)
1. 204 120 727 447 523 327 2.668
The Specific gravity of the coarse aggregates lies in the range of 2.4 – 3. This test results the specific gravity as
2.67, which is in the desirable range to give appropriate results of compressive strength test.
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Test results of fine aggregate (% finer than 4.75mm)
Table 1.7: Fineness modulus
SI. No. Sieve size Weight retained (gm) Cumulative % wt retained
1 4.75mm 038 03.8%
2 2.36mm 065 10.3%
3 1.18mm 156 25.9%
4 600µ 490 74.9%
5 300µ 197 94.6%
6 150µ 052 99.8%
7 75µ 002 100%
FM = 309.3/100 = 3.09
Table 1.8: Standards of fineness modulus & nature of sand
SI. No. Fineness Modulus Nature of Sand
1 2.2 – 2.6 Fine sand
2 2.6 – 2.9 Medium sand
3 2.9 – 3.2 Coarse sand
(Source: IS: 383: 1970)
The sieve analysis of fine aggregates gives the fineness modulus of 3.09, which lies in the range of 2.9 to 3.2,
that represents the coarse sand.
Table 1.1.2.2 Grading of fine aggregate
Table 1.9: Standards of grading zone of fine aggregates
Percentage passing for different zones
IS Sieve designation Zone I Zone II Zone III Zone IV
10mm 100 100 100 100
4.75mm 90-100 90-100 90-100 95-100
2.36mm 60-95 75-100 85-100 95-100
1.18mm 30-70 55-90 75-100 90-100
600µm 15-34 35-59 60-79 80-100
300µm 5-20 8-30 12-40 15-50
150µm 0-10 0-10 0-10 0-15
(Source: IS: 383: 1970)
Percentage passing through 600µ is 25.1% (15-34%), therefore the fine aggregates lies in grading zone I, which
conforms to IS 383: 1970.
1.1.3.2 Initial and final setting time
Table 1.10: Initial setting time with or without RSA
SI. No. Symbol of mix Initial setting time
1. OPC 155
2. RSA 7% 160
3. RSA 10% 170
4. RSA 10.1% 170
5. RSA 12% 200
Figure 1.1: Initial setting time for different percentage of RSA in cement
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Table 1.11: Standards of initial setting time (from earlier work done) (Source: Sharma et. al. 2013)
SI. No. Symbol of mix Initial setting time
1. OPC 140
2. RSA 5% 155
3. RSA 10% 165
4. RSA 15% 170
Table.1.12: Final setting time with or without RSA
SI. No. Symbol of mix Final setting time
1. OPC 250
2. RSA 7% 265
3. RSA 10% 280
4. RSA 10.1% 295
5. RSA 12% 305
Figure 1.2: Final setting time for different percentage of RSA in cement
Table 1.13: Standards of initial setting time (from earlier work done)
SI. No. Symbol of mix Initial setting time
1. OPC 240
2. RSA 5% 255
3. RSA 10% 270
4. RSA 15% 285
(Source: Sharma et. al. 2013)
The deviation in the previous study is due to the temperature difference, which might have changed the chemical
composition of the Rice Straw Ash. The other reason may be the change in water cement ratio and grade of the
mix. The variation in size of coarse aggregates could also attribute to the change in the setting time.
Mortar compressive strength
An increase in compressive strength of mortar cubes is reported for 10% marble dust substitution of cement and
for any further addition of marble dust compressive strength was found to decrease. The results are tabulated in
Table 1-3. Increase observed could be due to micro filler effect of marble dust owing to which the strength starts
decreasing after 10 % substitution as the amount of C3A and C2S required for hydration process reduces (Ergün
2011) . Micro structural analysis of broken samples was also conducted to ascertain whether any major changes
in chemistry phases were observed.
However, the reason for increase in strength and confirmation was studied using strength activity test and XRD
analysis of the samples.
Table 1.14: Drying shrinkage at 56 days and mortar cubes failure load
Mix Drying shrinkage (mm) Failure load (kN)
C0 1.31 60
C10 0.95 65
C15 0.83 65
C20 0.74 63
C25 0.67 60
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Strength activity
The results for strength activity showed additional increase of strength in samples containing marble dust instead
of silica sand. The strength ratio for samples at the end of 28 days is higher by almost 13 percent; indicating that
a chemical reaction may be taking place. However, as very little amounts of silica and alumina were found to be
present in marble dust, XRD was performed to determine the reason for the gain in strength. Table 1-4 shows the
strength activity test results.
Table 1.15: Strength ratios
Days/CS 100% Cemen t ∆ 10% MD ∆ 10% Silica Sand ∆
7 days 25 MPa 3.25 21 MPa 2.67 17 MPa 3.56
28 days 41 MPa 4.10 36 MPa 3.44 32 MPa 4.07
28-day Strength Ratio 0.88 0.78
PROPERTIES OF FRESH CONCRETE
SLUMP AND DENSITY
The reductive power of the admixture improves the compactness of the concrete mix.
Figure 1-3: Marble dust percent vs density
Figure 1.4: Marble dust percent vs slump
PROPERTIES OF HARDENED CONCRETE
MECHANICAL PROPERTIES
Compressive strength
The compressive strength test results for cubes containing 0%, 10%, 15%, 20% and 25% marble dust used as
partial replacement of cement by weight are presented in Figure 1-13 (a-c). 7.5% incompressivestreng that
10%and15%replacementlevelsisobservedforw/bratioof 0.35 where as 6% and 8% increase for w/b ratio 0.40 for
same percentage replacement is found at 28days curing age. However, for w/b ratio of 0.45, there is a minimal
increase in compressive strength at 28 days curing age for same percentage replacement levels of cement by
marbledust.
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(a) w/b 0.35
(b) w/b 0.40
(c) w/b 0.45
Figure 1.5: (a-c) Compressive strength test results of marble dust incorporated concrete
EFFECT OF VARYING DOSAGES OF SUPERPLASTICIZER
Table 1.16: Compressive strength trend at different dosages of plasticizer with use of marble dust
w/b ratio 0.35 0.4 0.45
CS at
increasing
Dosage
(MPa)
CS at
Constant
dosage
(MPa)
CS at
Increasing
Dosage
(MPa)
CS at
Constant
dosage
(MPa)
CS at
Increasing
Dosage
(MPa)
CS at
Constant
dosage
(MPa)
0% MD 39.77 38.54 32.54 31.37 24.32 23.54
10% MD 40.78 39.88 33.56 32.44 24.50 24.65
15% MD 42.67 41.35 34.78 33.65 24.40 23.08
20% MD 36.00 35.09 27.78 27.01 21.56 20.42
25% MD 34.52 33.12 26.95 25.74 21.23 20.03
*CS - Compressive Strength
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Effect of particle size on compressive strength
Effect of particle size on compressive strength is shown in Figure 1-15.
Figure 5.6: Effect of particle size on compressive strength
1.1.1.1.3 Long term effect
The strength value of reference concrete varied from 30 to 46 MPa depending upon the curing conditions. For
the higher water-binder ratios of 0.35 and 0.4, the results show a progressive rise in strength until 15 percent
marble dust replacement levels, across all curing times. The 15 percent replacement of marble dust resulted in a
3.9 and 7.4 percent increase in compressive strength at the end of 360 days for the water-binder ratios of 0.35
and 0.45For water-binder ratios of 0.35 and 0.40, severe strength losses are recorded throughout the testing ages
for percentage replacements more than 15%. These strength decreases can be as high as 20%. Rai et al. (2011)
reported similar findings, stating that a 5-10% rise in replacement levels was found up to 15%. For a w/b ratio of
0.45, as described in section 1.1.1.1, an increase in strength of up to 10% replacement level and up to 1% at the
end of 90 days is observed. Any additional increase in replacement levels resulted in strength losses, which
might be attributed to a lower binder content. All of the testing ages show a similar pattern. After examining the
samples for up to a year after exposing them to unfavourable environmental conditions, no loss in strength is
found.
Talah et al
(a) w/b 0.35
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(b) w/b 0.40
(c) w/b 0.45
Figure 1.8: (a-c) Percentage variation in Compressive strength
Split tensile strength
The test results of split tensile strength of concrete are shown in Figure 1-18 (a-c) . The maximum tensile
strength is attained after 15% replacement, after which the strength begins to deteriorate. However, at 10%
cement replacement by weight, maximum split tensile strength is observed for w/b ratio 0.45. Similar findings
were also reported by Deshmukh et al. (2015) and Vaidevi (2013) .
For example, at 10 percent and 15 percent replacement levels, w/b ratio 0.35 shows a 5.5 and 7.5 percent rise at
28 days curing age, respectively, but w/b ratio 0.45 shows a 4 percent increase at 10 percent replacement level.
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a) w/b 0.35
(b) w/b 0.40
(c) w/b 0.45
Figure 1.9: (a-c) Split tensile strength test results of marble dust incorporated concrete
1.1.1.2.1 Long term effect
Equation (1.1) is the best fit equation considering concrete made with marble dust as partially replaced cement.
ST= 0.0738 CS+2.7378 (1.1)
The concrete split tensile strength is ST, while the concrete compressive strength is CS in MPa. The equation
was created using data from three water-binder ratios, testing ages of up to 360 days and marble dust
replacement amounts of up to 25%.
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Figure 1.10: Split tensile strength in MPa vs. replacement percentage and No. of days
(a) w/b 0.35
(b) w/b 0.40
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(c) w/b 0.45
Figure 1.11: (a-c) Percentage variations in Split Tensile Strength
Figure 1.12: Relationship between Compressive and Split Tensile Strength
1.1.1.3 Flexural strength
Figure 1-22 (a-c) illustrates the results of a flexural strength test for concrete in which 10 percent, 15 percent, 20
percent, and 25 percent by weight of cement is replaced with dried marble dust. There is a trend that is similar to
compressive strength and split tensile strength.. Lower w/b ratios of 0.35 and 0.40 result in a 15 percent
replacement gain in flexural strength, while w/b ratio 0.45 results in a very minor 10 percent replacement
increase in strength. For 15% replacement, the flexural strength of w/b 0.45 is comparable to that of the control
mix. There has been a documented increase in flexural strength when 10% cement is replaced with marble dust.9
(a) w/b 0.35
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(b) w/b 0.40
(c) w/b 0.45
Figure 1.13: (a-c) Flexural strength test results of marble dust incorporated concrete
Experimental trails on reinforced concrete
Flexural strength
The failure loads of the beams are shown in Table 1-9. In comparison to the test mean result of 61.5 kN, the
theoretical failure load for OPC concrete with a compressive strength of 25.33 MPa is 28.5 kN. In comparison to
the test mean result of 66.5 kN, the predicted failure load for marble dust concrete with 15% cement replacement
(S15) of compressive strength 30 MPa is 30 kN.. The increased concrete strength in the beams due to the
presence of compression steel and confinement by shear reinforcement can be attributed to the substantial
disparity between the computed and measured failure load. It could also be explained by higher compressive
strength, which is related to the Limiting moment carrying capacity. (Mu lim) according to Annex G of IS 456
(2000) .
Deflections
Three dial gauges were placed below the beam at mid-span and one-third-sections to monitor deflections. The
smallest dial gauge count was 0.01 mm. To avoid damage to the dial gauges, the deflections are only measured
up to 60 kN and not up to failure loads.
Figure1-41 and Figure1-42 show the mean values of deflections at the one-third span and mid-span portions,
respectively. Table 1-9 displays the results.
The behaviour of the sections and the values of deflections at a load of 60 kN at mid-span and one-third sections
at 28 days are not significantly different for RS/15 and RC mix. When compared to the mid-span section, the
range in values at the one-third span section is not as great. At one-third section, the RC beams have a mean
deflection of 11.53 mm, whereas the RS/15 beams have a mean deflection of 11.88 mm. This is because more
steel would be required to carry the load for concrete with higher strength, yet the same quantity of steel was
provided for both sections.. The mean deflection at mid-span for RC beams is 13.99 mm, while for RS/15 beams
it is 15.24 mm. Because the observed deflections are close together, it may be assumed that the marble dust
concrete will also meet the serviceability requirements for deflections in structures.
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Figure 1.14: Mean values of beams at 1/3rd span at different loads
Figure 1.15: Mean values of beams at mid-section at different loads
Table 1.17: Failure loads of the beams and deflection at 60KN load at 1/3rd and mid span section
S. No. Beam Failure Load (kN) Average Deflection (mm) Average Average
1 RS/15 1 67.00 1/3 section Mid- span
2 RS/15 2 67.50
66.50
13.23
11.88
15.32
3 RS/15 3 66.00 11.98 15.97 15.24
4 RS/15 4 65.50 12.44 15.11
5 RC 1 62.00 61.50 9.87 14.56
6 RC 2 61.50 12.32
11.53
14.32 13.99
7 RC 3 62.00 10.91 13.86
8 RC 4 60.50 10.87 13.25
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SOCIAL AND HISTORICAL CONTEXT - LFTVD.pptx
 

Assessment of Potential of Marble Slurry as a Mineral Admixture in Concrete

  • 1. International Journal of Trend in Scientific Research and Development (IJTSRD) Volume 6 Issue 5, July-August 2022 Available Online: www.ijtsrd.com e-ISSN: 2456 – 6470 @ IJTSRD | Unique Paper ID – IJTSRD50601 | Volume – 6 | Issue – 5 | July-August 2022 Page 965 Assessment of Potential of Marble Slurry as a Mineral Admixture in Concrete Manisha Parte, Prof. Nitesh Kushwaha, Prof. Afzal Khan Department of Civil Engineering, Millennium Institute of Technology, Bhopal, Madhya Pradesh, India ABSTRACT Marble is a metamorphic rock composed of recrystallized carbonate minerals, most commonly calcite or dolomite. Marble is typically not foliated, although there are exceptions. In geology, the term marble refers to metamorphosed limestone, but its use in stonemasonry more broadly encompasses unmetamorphosed limestone. Marble is commonly used for sculpture and as a building material. Quite a few industrial by-products have found their use as a partial replacement of cement. Also, they have been found to positively influence the properties of concrete. Fly ash (FA), silica fume (SF) and blast furnace slag (BFS) are the by-products of a coal-based thermal power plant, Ferro-silicone industry, and steel industry, respectively. Cement industry all around the world is facing the pressure of continuously rising demand as there is a need to develop an enormous amount of infrastructure, such as power plants, roads, and ports, finding an alternative material, which can partially replace the cement clinker, are one of the best ways to meet this challenge. The experimental program, design compositions of the experimental samples and the methodology adopted to conduct the experimental trials. In first section material used in making of the cement mortar and the concrete mixes, and then their physical & chemical composition are determined. Concrete mix proportions, their design compositions and mixing procedures are mentioned in the second section. In the third section the experimental setup, tests adopted, reference codes used for testing have been discussed in detail. KEYWORDS: Marble Slurry, Compressive Strength, Tensile Strength, Concrete Mix, Physical & Chemical Composition, Partial Replacement How to cite this paper: Manisha Parte | Prof. Nitesh Kushwaha | Prof. Afzal Khan "Assessment of Potential of Marble Slurry as a Mineral Admixture in Concrete" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456- 6470, Volume-6 | Issue-5, August 2022, pp.965-978, URL: www.ijtsrd.com/papers/ijtsrd50601.pdf Copyright © 2022 by author (s) and International Journal of Trend in Scientific Research and Development Journal. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0) (http://creativecommons.org/licenses/by/4.0) 1. RESULTS AND DISCUSSION This chapter deals with results and discussion of experimental program conducted in the previous chapter. Characterization of marble slurry Table 1.1: Physical and chemical properties of cement and marble dust Chemical composition OPC (%) Marble dust (%) Physical Properties OPC (%) Marble dust (%) SiO2 20.27 3.86 Al2O3 5.32 4.62 Fe2O3 3.56 0.78 Specific gravity 3.15 2.67 CaO 60.41 28.63 MgO 2.46 16.9 Fineness (m2 /kg) SO3 3.17 - 313 250 LOI 3.55 43.3 IJTSRD50601
  • 2. International Journal of Trend in Scientific Research and Development @ www.ijtsrd.com eISSN: 2456-6470 @ IJTSRD | Unique Paper ID – IJTSRD50601 | Volume – 6 | Issue – 5 | July-August 2022 Page 966 Preliminary data analysis Test results of coarse aggregates (size – 10mm) Table 1.2: Aggregate impact value . SI. NO. Initial weight (gm) Final weight (gm) AIV (%) Avg. AIV (%) 1. 343.5 75.3 21.92 21.23 2. 344.2 70.7 20.54 Table 1.3: Specified limits of percent aggregates impact value for different types of road construction by Indian road congress (IRC) SI. NO Pavement type Maximum aggregate impact value 1. Wearing course 30 a) Bituminous surface dressing b) Penetration macadam c) Bituminous carpet concrete d) Cement concrete 2. Bitumen bound macadam base course 35 3. WBM base course with bitumen surfacing 40 4. Cement concrete base course 45 (Source - IS: 383-1970) The aggregate impact value is found to be 21.23 % which is found to be in the permissible range for the pavement. This test is done to perform the toughness of the aggregates. Aggregate plays an important role in pavement construction. Aggregates influence, to a great extent, the load transfer capability of pavements. Hence it is essential that they should be thoroughly tested before using for construction Table 1.4: Aggregate crushing value SI. NO. Initial weight (gm) Final weight (gm) ACV (%) Avg. ACV (%) 1. 345.2 80.2 23.23 23.67 2. 346.7 83.6 24.11 Table 1.5: Aggregate Crushing Values for Roads and Pavement Construction SI. No. Types of roads and pavements Aggregates crushing value 1. Flexible pavement a) Soiling 50 b) Water bound macadam 40 c) Bituminous macadam 40 d) Bituminous surfacing dressing or thin premix carpet 30 e) Dense mix carpet 30 2. Rigid pavements a) Other than wearing course 45 b) Surface wearing course 30 (Source - IS: 383-1970) The aggregate crushing value is found to be 23.67%, which is suitable for the designing of pavements. Table 1.6: Specific gravity (G) SI. No. Wt. of empty bowl in air (gm) (I) Submergd wt of bowl (gm) (II) Wt of specimen &bowl in air (gm) (III) Submergewt of bowl & specimen (gm) (IV) Wt of aggregate in air (gm) (III – I) Wt of Aggregate in water (gm) (IV – II) Specific Gravity (G) 1. 204 120 727 447 523 327 2.668 The Specific gravity of the coarse aggregates lies in the range of 2.4 – 3. This test results the specific gravity as 2.67, which is in the desirable range to give appropriate results of compressive strength test.
  • 3. International Journal of Trend in Scientific Research and Development @ www.ijtsrd.com eISSN: 2456-6470 @ IJTSRD | Unique Paper ID – IJTSRD50601 | Volume – 6 | Issue – 5 | July-August 2022 Page 967 Test results of fine aggregate (% finer than 4.75mm) Table 1.7: Fineness modulus SI. No. Sieve size Weight retained (gm) Cumulative % wt retained 1 4.75mm 038 03.8% 2 2.36mm 065 10.3% 3 1.18mm 156 25.9% 4 600µ 490 74.9% 5 300µ 197 94.6% 6 150µ 052 99.8% 7 75µ 002 100% FM = 309.3/100 = 3.09 Table 1.8: Standards of fineness modulus & nature of sand SI. No. Fineness Modulus Nature of Sand 1 2.2 – 2.6 Fine sand 2 2.6 – 2.9 Medium sand 3 2.9 – 3.2 Coarse sand (Source: IS: 383: 1970) The sieve analysis of fine aggregates gives the fineness modulus of 3.09, which lies in the range of 2.9 to 3.2, that represents the coarse sand. Table 1.1.2.2 Grading of fine aggregate Table 1.9: Standards of grading zone of fine aggregates Percentage passing for different zones IS Sieve designation Zone I Zone II Zone III Zone IV 10mm 100 100 100 100 4.75mm 90-100 90-100 90-100 95-100 2.36mm 60-95 75-100 85-100 95-100 1.18mm 30-70 55-90 75-100 90-100 600µm 15-34 35-59 60-79 80-100 300µm 5-20 8-30 12-40 15-50 150µm 0-10 0-10 0-10 0-15 (Source: IS: 383: 1970) Percentage passing through 600µ is 25.1% (15-34%), therefore the fine aggregates lies in grading zone I, which conforms to IS 383: 1970. 1.1.3.2 Initial and final setting time Table 1.10: Initial setting time with or without RSA SI. No. Symbol of mix Initial setting time 1. OPC 155 2. RSA 7% 160 3. RSA 10% 170 4. RSA 10.1% 170 5. RSA 12% 200 Figure 1.1: Initial setting time for different percentage of RSA in cement
  • 4. International Journal of Trend in Scientific Research and Development @ www.ijtsrd.com eISSN: 2456-6470 @ IJTSRD | Unique Paper ID – IJTSRD50601 | Volume – 6 | Issue – 5 | July-August 2022 Page 968 Table 1.11: Standards of initial setting time (from earlier work done) (Source: Sharma et. al. 2013) SI. No. Symbol of mix Initial setting time 1. OPC 140 2. RSA 5% 155 3. RSA 10% 165 4. RSA 15% 170 Table.1.12: Final setting time with or without RSA SI. No. Symbol of mix Final setting time 1. OPC 250 2. RSA 7% 265 3. RSA 10% 280 4. RSA 10.1% 295 5. RSA 12% 305 Figure 1.2: Final setting time for different percentage of RSA in cement Table 1.13: Standards of initial setting time (from earlier work done) SI. No. Symbol of mix Initial setting time 1. OPC 240 2. RSA 5% 255 3. RSA 10% 270 4. RSA 15% 285 (Source: Sharma et. al. 2013) The deviation in the previous study is due to the temperature difference, which might have changed the chemical composition of the Rice Straw Ash. The other reason may be the change in water cement ratio and grade of the mix. The variation in size of coarse aggregates could also attribute to the change in the setting time. Mortar compressive strength An increase in compressive strength of mortar cubes is reported for 10% marble dust substitution of cement and for any further addition of marble dust compressive strength was found to decrease. The results are tabulated in Table 1-3. Increase observed could be due to micro filler effect of marble dust owing to which the strength starts decreasing after 10 % substitution as the amount of C3A and C2S required for hydration process reduces (Ergün 2011) . Micro structural analysis of broken samples was also conducted to ascertain whether any major changes in chemistry phases were observed. However, the reason for increase in strength and confirmation was studied using strength activity test and XRD analysis of the samples. Table 1.14: Drying shrinkage at 56 days and mortar cubes failure load Mix Drying shrinkage (mm) Failure load (kN) C0 1.31 60 C10 0.95 65 C15 0.83 65 C20 0.74 63 C25 0.67 60
  • 5. International Journal of Trend in Scientific Research and Development @ www.ijtsrd.com eISSN: 2456-6470 @ IJTSRD | Unique Paper ID – IJTSRD50601 | Volume – 6 | Issue – 5 | July-August 2022 Page 969 Strength activity The results for strength activity showed additional increase of strength in samples containing marble dust instead of silica sand. The strength ratio for samples at the end of 28 days is higher by almost 13 percent; indicating that a chemical reaction may be taking place. However, as very little amounts of silica and alumina were found to be present in marble dust, XRD was performed to determine the reason for the gain in strength. Table 1-4 shows the strength activity test results. Table 1.15: Strength ratios Days/CS 100% Cemen t ∆ 10% MD ∆ 10% Silica Sand ∆ 7 days 25 MPa 3.25 21 MPa 2.67 17 MPa 3.56 28 days 41 MPa 4.10 36 MPa 3.44 32 MPa 4.07 28-day Strength Ratio 0.88 0.78 PROPERTIES OF FRESH CONCRETE SLUMP AND DENSITY The reductive power of the admixture improves the compactness of the concrete mix. Figure 1-3: Marble dust percent vs density Figure 1.4: Marble dust percent vs slump PROPERTIES OF HARDENED CONCRETE MECHANICAL PROPERTIES Compressive strength The compressive strength test results for cubes containing 0%, 10%, 15%, 20% and 25% marble dust used as partial replacement of cement by weight are presented in Figure 1-13 (a-c). 7.5% incompressivestreng that 10%and15%replacementlevelsisobservedforw/bratioof 0.35 where as 6% and 8% increase for w/b ratio 0.40 for same percentage replacement is found at 28days curing age. However, for w/b ratio of 0.45, there is a minimal increase in compressive strength at 28 days curing age for same percentage replacement levels of cement by marbledust.
  • 6. International Journal of Trend in Scientific Research and Development @ www.ijtsrd.com eISSN: 2456-6470 @ IJTSRD | Unique Paper ID – IJTSRD50601 | Volume – 6 | Issue – 5 | July-August 2022 Page 970 (a) w/b 0.35 (b) w/b 0.40 (c) w/b 0.45 Figure 1.5: (a-c) Compressive strength test results of marble dust incorporated concrete EFFECT OF VARYING DOSAGES OF SUPERPLASTICIZER Table 1.16: Compressive strength trend at different dosages of plasticizer with use of marble dust w/b ratio 0.35 0.4 0.45 CS at increasing Dosage (MPa) CS at Constant dosage (MPa) CS at Increasing Dosage (MPa) CS at Constant dosage (MPa) CS at Increasing Dosage (MPa) CS at Constant dosage (MPa) 0% MD 39.77 38.54 32.54 31.37 24.32 23.54 10% MD 40.78 39.88 33.56 32.44 24.50 24.65 15% MD 42.67 41.35 34.78 33.65 24.40 23.08 20% MD 36.00 35.09 27.78 27.01 21.56 20.42 25% MD 34.52 33.12 26.95 25.74 21.23 20.03 *CS - Compressive Strength
  • 7. International Journal of Trend in Scientific Research and Development @ www.ijtsrd.com eISSN: 2456-6470 @ IJTSRD | Unique Paper ID – IJTSRD50601 | Volume – 6 | Issue – 5 | July-August 2022 Page 971 Effect of particle size on compressive strength Effect of particle size on compressive strength is shown in Figure 1-15. Figure 5.6: Effect of particle size on compressive strength 1.1.1.1.3 Long term effect The strength value of reference concrete varied from 30 to 46 MPa depending upon the curing conditions. For the higher water-binder ratios of 0.35 and 0.4, the results show a progressive rise in strength until 15 percent marble dust replacement levels, across all curing times. The 15 percent replacement of marble dust resulted in a 3.9 and 7.4 percent increase in compressive strength at the end of 360 days for the water-binder ratios of 0.35 and 0.45For water-binder ratios of 0.35 and 0.40, severe strength losses are recorded throughout the testing ages for percentage replacements more than 15%. These strength decreases can be as high as 20%. Rai et al. (2011) reported similar findings, stating that a 5-10% rise in replacement levels was found up to 15%. For a w/b ratio of 0.45, as described in section 1.1.1.1, an increase in strength of up to 10% replacement level and up to 1% at the end of 90 days is observed. Any additional increase in replacement levels resulted in strength losses, which might be attributed to a lower binder content. All of the testing ages show a similar pattern. After examining the samples for up to a year after exposing them to unfavourable environmental conditions, no loss in strength is found. Talah et al (a) w/b 0.35
  • 8. International Journal of Trend in Scientific Research and Development @ www.ijtsrd.com eISSN: 2456-6470 @ IJTSRD | Unique Paper ID – IJTSRD50601 | Volume – 6 | Issue – 5 | July-August 2022 Page 972 (b) w/b 0.40 (c) w/b 0.45 Figure 1.8: (a-c) Percentage variation in Compressive strength Split tensile strength The test results of split tensile strength of concrete are shown in Figure 1-18 (a-c) . The maximum tensile strength is attained after 15% replacement, after which the strength begins to deteriorate. However, at 10% cement replacement by weight, maximum split tensile strength is observed for w/b ratio 0.45. Similar findings were also reported by Deshmukh et al. (2015) and Vaidevi (2013) . For example, at 10 percent and 15 percent replacement levels, w/b ratio 0.35 shows a 5.5 and 7.5 percent rise at 28 days curing age, respectively, but w/b ratio 0.45 shows a 4 percent increase at 10 percent replacement level.
  • 9. International Journal of Trend in Scientific Research and Development @ www.ijtsrd.com eISSN: 2456-6470 @ IJTSRD | Unique Paper ID – IJTSRD50601 | Volume – 6 | Issue – 5 | July-August 2022 Page 973 a) w/b 0.35 (b) w/b 0.40 (c) w/b 0.45 Figure 1.9: (a-c) Split tensile strength test results of marble dust incorporated concrete 1.1.1.2.1 Long term effect Equation (1.1) is the best fit equation considering concrete made with marble dust as partially replaced cement. ST= 0.0738 CS+2.7378 (1.1) The concrete split tensile strength is ST, while the concrete compressive strength is CS in MPa. The equation was created using data from three water-binder ratios, testing ages of up to 360 days and marble dust replacement amounts of up to 25%.
  • 10. International Journal of Trend in Scientific Research and Development @ www.ijtsrd.com eISSN: 2456-6470 @ IJTSRD | Unique Paper ID – IJTSRD50601 | Volume – 6 | Issue – 5 | July-August 2022 Page 974 Figure 1.10: Split tensile strength in MPa vs. replacement percentage and No. of days (a) w/b 0.35 (b) w/b 0.40
  • 11. International Journal of Trend in Scientific Research and Development @ www.ijtsrd.com eISSN: 2456-6470 @ IJTSRD | Unique Paper ID – IJTSRD50601 | Volume – 6 | Issue – 5 | July-August 2022 Page 975 (c) w/b 0.45 Figure 1.11: (a-c) Percentage variations in Split Tensile Strength Figure 1.12: Relationship between Compressive and Split Tensile Strength 1.1.1.3 Flexural strength Figure 1-22 (a-c) illustrates the results of a flexural strength test for concrete in which 10 percent, 15 percent, 20 percent, and 25 percent by weight of cement is replaced with dried marble dust. There is a trend that is similar to compressive strength and split tensile strength.. Lower w/b ratios of 0.35 and 0.40 result in a 15 percent replacement gain in flexural strength, while w/b ratio 0.45 results in a very minor 10 percent replacement increase in strength. For 15% replacement, the flexural strength of w/b 0.45 is comparable to that of the control mix. There has been a documented increase in flexural strength when 10% cement is replaced with marble dust.9 (a) w/b 0.35
  • 12. International Journal of Trend in Scientific Research and Development @ www.ijtsrd.com eISSN: 2456-6470 @ IJTSRD | Unique Paper ID – IJTSRD50601 | Volume – 6 | Issue – 5 | July-August 2022 Page 976 (b) w/b 0.40 (c) w/b 0.45 Figure 1.13: (a-c) Flexural strength test results of marble dust incorporated concrete Experimental trails on reinforced concrete Flexural strength The failure loads of the beams are shown in Table 1-9. In comparison to the test mean result of 61.5 kN, the theoretical failure load for OPC concrete with a compressive strength of 25.33 MPa is 28.5 kN. In comparison to the test mean result of 66.5 kN, the predicted failure load for marble dust concrete with 15% cement replacement (S15) of compressive strength 30 MPa is 30 kN.. The increased concrete strength in the beams due to the presence of compression steel and confinement by shear reinforcement can be attributed to the substantial disparity between the computed and measured failure load. It could also be explained by higher compressive strength, which is related to the Limiting moment carrying capacity. (Mu lim) according to Annex G of IS 456 (2000) . Deflections Three dial gauges were placed below the beam at mid-span and one-third-sections to monitor deflections. The smallest dial gauge count was 0.01 mm. To avoid damage to the dial gauges, the deflections are only measured up to 60 kN and not up to failure loads. Figure1-41 and Figure1-42 show the mean values of deflections at the one-third span and mid-span portions, respectively. Table 1-9 displays the results. The behaviour of the sections and the values of deflections at a load of 60 kN at mid-span and one-third sections at 28 days are not significantly different for RS/15 and RC mix. When compared to the mid-span section, the range in values at the one-third span section is not as great. At one-third section, the RC beams have a mean deflection of 11.53 mm, whereas the RS/15 beams have a mean deflection of 11.88 mm. This is because more steel would be required to carry the load for concrete with higher strength, yet the same quantity of steel was provided for both sections.. The mean deflection at mid-span for RC beams is 13.99 mm, while for RS/15 beams it is 15.24 mm. Because the observed deflections are close together, it may be assumed that the marble dust concrete will also meet the serviceability requirements for deflections in structures.
  • 13. International Journal of Trend in Scientific Research and Development @ www.ijtsrd.com eISSN: 2456-6470 @ IJTSRD | Unique Paper ID – IJTSRD50601 | Volume – 6 | Issue – 5 | July-August 2022 Page 977 Figure 1.14: Mean values of beams at 1/3rd span at different loads Figure 1.15: Mean values of beams at mid-section at different loads Table 1.17: Failure loads of the beams and deflection at 60KN load at 1/3rd and mid span section S. No. Beam Failure Load (kN) Average Deflection (mm) Average Average 1 RS/15 1 67.00 1/3 section Mid- span 2 RS/15 2 67.50 66.50 13.23 11.88 15.32 3 RS/15 3 66.00 11.98 15.97 15.24 4 RS/15 4 65.50 12.44 15.11 5 RC 1 62.00 61.50 9.87 14.56 6 RC 2 61.50 12.32 11.53 14.32 13.99 7 RC 3 62.00 10.91 13.86 8 RC 4 60.50 10.87 13.25 REFERENCES [1] ASTM-C33/C33M-16e1 (2016). "Standard specification for concrete aggregates.” ASTM International, West Conshohocken, PA. [2] ASTM-C150/C150M-16e1 (2016). "Standard specification for portland cement.” ASTM International, West Conshohocken, PA. [3] BS-EN-12390-3 (2009). "Testing hardened concrete, compressive strength of test specimens.” British Standards Institution. [4] BS-EN-12390-5 (2009). "Testing hardened concrete, flexural strength of test specimens.” British Standards Institution. [5] Bungey, J. H., Millard, S. G., and Grantham, M. G. (2006). Testing of concrete in structures, Taylor and Francis, London, New York. [6] Binici, H., Kaplan, H., and Yilmaz, S. (2007). "Influence of marble and limestone dusts as additives on some mechanical properties of concrete.” Scientific Research and Essay, 2, 372- 379. [7] Bonavetti, V. L., Rahhal, V. F., and Irassar, E. F. (2001). "Studies on thecarboaluminate formation in limestone filler blended cements.” Journal Cement and Concrete Research, 33, 853- 859. [8] Bungey, J. H., Grantham, M. G., and Millard, S. (2006). Testing of concrete in structures, Crc Press. [9] Ceylan, H., and Manca, S. (2013). "Evaluation of concrete aggregate marble pieces.” SDU Journal of Technical Science, 3, 21-25.
  • 14. International Journal of Trend in Scientific Research and Development @ www.ijtsrd.com eISSN: 2456-6470 @ IJTSRD | Unique Paper ID – IJTSRD50601 | Volume – 6 | Issue – 5 | July-August 2022 Page 978 [10] Sheikh and P. Abdul (2017). Characterization of cold densified rice straw briquettes and the dynamic utilization of sawdust as binder. Fuel Processing Technology 158, 9 – 19. [11] Chenxi, Linfeng, Feng and Xinhua (2016). The pretreatment of rice straw by black liquor derived carbonaceous solid acid catalyst for the hydrolysis in an ionic liquid. Bioresource technology 220, 256 – 260. [12] Jun, Mengming, Lili and Jianming (2018). Changes in heavy metal bioavailability and speciation from Pb-Zn mining soil amended with biochars from co-pyrolysis of rice straw and swine manure (2018). Science of the Total Environment 633, 300 – 307. [13] Chun – Yao and Tony J. (2014). Combination of ultrasonic irradiation with ionic liquid pretreatment for enzymatic hydrolysis of rice straw. Bioresource Technology 168, 198 – 202. [14] Rawel, Vertika, Kajal, Piyush, Aditya, Bhaya and Thallada (2015). Bioresource Technology 188, 280 – 286. [15] Wen, Ming, An. And Wen-Song (2017). Efficient extraction and recovery of xylan and lignin from ricestraw using a flow-through hydrothermal system. Journal of the Taiwan Institute of Chemical Engineers 79, 103 - 109. [16] Arif, Anggoro, Muhammad and Koji (2017). Enhanced electricity production from rice straw. ScienceDirect, energy procedia. [17] Xiang, Adriaan van, Sixtaa and Mikhail (2017). Lignin and ash balances of sulfur dioxide- ethanol-water fractionation of sugarcane straw. Bioresource Technology 224, 1111 – 1120. [18] Xing, Guochao, Jinjun, Ruizhi and Ye (2018). Novel dihydrogen-bonding deep eutectic solvents: Pretreatment of rice straw for butanol fermentation featuring enzyme recycling and high solvent yield. Chemical Engineering Journal. [19] Madhubanti and Mrinal kranti (2018). Synthesis of rice straw extracted nano-silica composite mebrane for CO2 separation. Journal of Cleaner Production 186, 241 – 252. [20] M., A. P. and D. W. (2016). The effect of feeding frequency and organic loading rate on the anaerobic digestion of chinese rice straw. International Conference on Applied Energy. [21] Yu, Pei, Wen and Shang (2013). Microwave pyrolysis of rice straw. Bioresource Technology 142, 620 – 624. [22] Bijoy, Rawel, Jitendra, Raghuvir, Piyush, Bhavya and Thallad (2017). Pyrolsis behavior of rice straw under carbon dioxide for production of bio–oil. Renewable Energy. [23] Chunying, Kun, Dali and Pan (2017). Environmental and economic assessment of crop residue competitive utilization for biochar, briquette fuel and combined heat and power generation. Journal of cleaner production. [24] Annahita Ansari. Review of rice husk ash effect in sustainability of materials and environment. [25] Thapat and Shabbir (2013). A comparative LCA utilization for fertilizers and fuels in Thailand. Bioresource technology 150, 412- 419. [26] Chris G. Karayannis, “Smeared Crack Analysis for Plain Concrete in Torsion”, Journal of Structural Engineering, Vol. 126, Issue. 6, 2000. [27] D. Gopinath and R. M. Senthamarai, Mechanical Properties of Concrete with Ceramic Waste Aggregate, TARCE - Vol. 1 No. 2, 2012, pp. 10-13. [28] David Z. Yankelev, “Local Response of Concrete Slabs to Low Velocity Missile Impact”, International Journal of Impact Engineering, Vol. 19, No. 4, 1997, pp. 331-343 [29] Gunneswara Rao. T. D and Rama Seshu. D, “Torsion of steel reinforced concrete members”, cement & concrete research, Vol. 33, Issue. 11, 2003, pp. 1783. 1788. [30] I. S. 456 -1978 Code (Indian Standard code for practice of plain reinforced concrete) Indian Standard Institution (Third revision) 1979 [31] Karaca and Elci, “Using dimention stone quarry waste as concrete aggregate”, ICCBT 2008 – A – (03), pp. 45 – 56. [32] Murali G, Saravanakumar R, Balaji C, Muthuramam R, Sreekavitha V and Archana S, “Experimental [33] Sudarsana Rao. H, Vaishali G. Ghorpade, Ramana N. V and Gnaneswar. K, “Response of SIFCON two-way loading”, Impact Engineering, Vol. 37, Issue. 4, 2010, pp. 452- 458.