A
Presentation
On
Stabilization of silty Soil With Marble dust, Sugarcane Bagasse
Ash and Rice Husk Ash
DEPARTMENT OF CIVIL ENGINEERING
NATIONAL INSTITUTE OF TECHNOLOGY KURUKSHETRA
Session 2016-2018
Guided by: Presented by:
Dr.V.K.Arora Priyanka Mishra
Contents
➢ INTRODUCTION
➢ OBJECTIVES
➢ MATERIAL USED
➢ EXPERIMENTAL PROCEDURE
➢ RESULTS
➢ CONCLUSION
➢ REFERENCE
Introduction
➢ Silty soils cause great engineering problems due to low strength and low
bearing capacity .
➢As silt exhibit certain undesirable engineering properties. They tend to
have low shear strength and their shear strength decreases further upon
wetting or due to some other physical disturbances.
➢These properties can be improved by the process of soil stabilization using
different type of stabilizer.
➢Stabilized soil proves to be very useful construction material especially if
locally available industrial or natural material is used as it will be cost
effective also.
Objectives of the Study
The main objectives of the study are:
➢ To study the compaction parameter i.e. OMC and MDD of silty soil
treated with different proportions of Marble dust, sugarcane bagasse
ash and Rice Husk Ash combination.
➢ To study the unconfined compressive strength characteristics of silty
soil treated with different proportions of Marble dust ,sugarcane
bagasse ash and Rice Husk Ash combination.
Steps
Literature Review
Procurement of soil , MD & SBA
Assessment of properties of soil and waste materials
Evaluation of UCS of parent soil & soil treated with different % of MD
,SBA and RHA
Material Used
Soil sample TABLE 1: Properties of parent soil
➢ Around 150 kg of locally
S.NO. Property value
Gravel (%) 0
available silt was collected
Grain size distribution Sand (%) 25
nearby NIT campus
1 data Clay (%) 9
Kurukshetra , Haryana from a
Silt (%) 66
depth around 0.5 - 0.6 m
2 I.S. classification ML
below the ground surface .
3 P.L. 13.42
4 L.L. 23.55
5 P.I. 10.13
6 MDD, gm/cc 2.012
7 OMC ( %) 10.98
8 Specific gravity 2.65
9 UCS (kg/cm2) 1.125
Marble dust
➢ It has been observed that marble dust
is a successful waste material in soil
stabilization strategy which enhances
the compaction qualities , subgrade
characteristics, compressibility
characteristics.
➢ Marble dust had a considerable role in
the hydration process because of high
Figure:1 marble dust
calcium content.
➢ In the present study Marble dust is
obtained from local marble industry .
Sugarcane Bagasse Ash (SBA)
➢ Bagasse is the fibrous matter that remains after the whole juice has
been extracted from the sugarcane and deposited as waste.
➢ This bagasse is used as a fuel in sugarcane mills for the generation
of steam which eventually results in sugarcane bagasse ash (SBA).
➢ This SBA is a very good pozzolanic material as it contains good
amount of oxides of silica and aluminum so can be used as a
stabilizer in stabilizing silty soils.
➢ The Bagasse Ash used in the study was collected from The
Shahabad Co-operative Sugar Mill Ltd. Shahabad Markanda of
District Kurukshetra.
Figure:2 Sugarcane Bagasse Figure:3 Sugarcane bagasse ash
Rice Husk Ash
➢ This Rice husk ash is a very good super pozzolana as it contains good
amount of amorphous silica which can be used as a stabilizer to
enhance the durability and strength of silty soils.
Figure:4 Rice Husk Figure:5 Rice husk ash
Experimental Procedure
➢ Standard proctor test(SPT) & UCS ,were carried out for both natural soils and with the
addition of marble dust with four different percentages (5%, 10%, 15% & 20%), with
the addition of SBA with three different percentages (3%, 5% & 7%) and with the
addition of RHA with three different percentage (2%,4%& 6%).
➢ The compressive load per unit area required to fail the specimen as called UC strength
of soil. From Procter test the soil is mixed with optimum water content with weight of
dry soil (as calculated from MDD).then it is kept wrapped in polyethene for one day
for maturing.
➢ Cylindrical mould having a diameter of 38 mm and height of 76 mm, used in the UCS
test. samples were prepared at their corresponding optimum moisture content and
maximum dry density by static compaction.
Results of Standard Proctor Test
➢ For Parent soil MDD is found to be 2.019gm/cc at 12% OMC, for
Parent soil+5%MD, MDD was 1.948gm/cc at 12.399% OMC.
➢ for Parent soil+15%MD, MDD was 1.866 gm/cc at 13.468% OMC,
for Parent soil+20%MD MDD was 1.863 gm/cc at 13.867% OMC.
➢ for Parent soil+15%MD+3%SBA, MDD was 1.856 gm/cc at 14.3%
OMC. for Parent soil+15%MD+5%SBA ,MDD was 1.826 gm/cc at
17.09% OMC (Figure :4).
Results of standard proctor test
1-parent soil
2-parent soil+5%MD
3-parent soil+10%MD
4-parent soil+15%MD
5-parent soil+20%MD
6-parent soil+15%MD+3%SBA
Density(gm/cc)
7-parent soil+15%MD+5%SBA
8-parent soil+15%MD+7%SBA
9-parent
Max. Dry
soil+15%MD+5%SBA+2%RHA
10-parent
soil+15%MD+5%SBA+4%RHA
11-parent
soil+15%MD+5%SBA+6%RHA
Water Content %
Figure:6 Variation of compaction curves for soil mixes with different proportions of MD, SBA
and RHA
Results of UCS
TABLE:2 Variation of UCS for soil mixes with different proportions of MD, SBA and RHA
Samples Unconfined Compressive Strength
(Kg/cm2)
Parent Soil 1.125
Parent Soil + 5%MD 1.376
Parent Soil + 10%MD 1.70
Parent Soil + 15%MD 2.158
Parent Soil + 20%MD 1.191
Parent Soil +15%MD +3%SBA 2.277
Parent Soil +15%MD +5%SBA 2.496
Parent Soil +15%MD +7%SBA 2.231
Parent Soil +15%MD +5%SBA+2%RHA 2.609
Parent Soil +15%MD +5%SBA+4%RHA 2.847
Parent Soil +15%MD +5%SBA+6%RHA 2.421
(Kg/cm2)
UCS
Figure:7 Effect of increasing total stabilizer on UCS value
1-parent soil
2-parent soil+5%MD
3-parent soil+10%MD
4-parent soil+15%MD
5-parent soil+20%MD
6-parent soil+15%MD+3%SBA
STRESS
7-parent soil+15%MD+5%SBA
8-parent soil+15%MD+7%SBA
9-parent soil+15%MD+5%SBA+2%RHA
10-parent
soil+15%MD+5%SBA+4%RHA
11-parent
soil+15%MD+5%SBA+6%RHA
STRAIN
Figure:8 Comparison graph for stress – strain variation
Conclusion
➢ From the study it has been observed that there is continuous increase in
OMC and decrease to MDD value with increase in % of stabilizer.
➢ Optimum value of unconfined compressive strength is achieved at
composition of SOIL +15% MD+5% SBA+4%RHA.
➢ Use of marble dust ,SBA and Rice Husk Ash as a stabilizer for
improving the geotechnical properties of silty soil is economical and
effective solution.
➢ Marble dust ,SBA and Rice Husk Ash can be used in bulk quantity for
stabilization of silty soil which will solve the problem of their disposal
and will reduce the environmental pollution.
Reference
➢ Premalal, H. G., Ismail, H., &Baharin, A Comparison of the
mechanical properties of rice husk powder filled polypropylene
composites with talc filled polypropylene composites. Polymer
Testing, 21(7), 833-839.
➢ Phani Kumar, B. R., & Sharma, R. S. Effect of fly ash on
engineering properties of expansive soils. Journal of Geotechnical
and Geoenvironmental Engineering, 130(7), 764-767.
➢ Basha, E.A.,Hashim, R., Mahmud, H. B., &Muntohar, A. S.
Stabilization of residual soil with rice husk ash and
cement. Construction and Building Materials, 19(6), 448-453
➢ Hossain, K. M. A., & Mol, L. Some engineering properties of
stabilized clayey soils incorporating natural pozzolans and industrial
wastes. Construction and Building Materials, 25(8), 3495-3501.
➢ Sua-iam, G., &Makul, N. Use of increasing amounts of bagasse ash
waste to produce self-compacting concrete by adding limestone
powder waste. Journal of Cleaner Production, 57, 308-319.
➢ Mehta, A., Parate, K., &Ruprai, B. S. Stabilization of black cotton
soil by fly ash In Special Issue for National Conference on Recent
Advances in Technology and Management for Integrated Growth.
Thank You...
