SOIL STABLIZATION USING SUGARCANE WASTE (BAGASSE)

SYNOPSIS OF THESIS

SUBMITTED IN PARTIAL FULFILLMENT OF THEREQUIREMENT FOR THE AWARD OF THE DEGREE OFMASTER OF TECHNOLOGY (SOIL

MECHANICS & FOUNDATION ENGINEERING)

SUBMITTED BYKARAN GUPTA

SE-1147

GURU NANAK DEV ENGINEERING COLLEGELUDHIANA, INDIAINTRODUCTION

Soil stabilization is any processwhich improves the physicalproperties of soil, such asincreasing shear strength, bearingcapacity etc. which can be done byuse of controlled compaction oraddition of suitable admixtureslike cement, lime and wastematerials like fly ash,phosphogypsum etc. Nowadays,considerable attention has beenpaid to the utilization ofalternative materials, which bearhigher engineering quality thantraditional materials and arefinancially affordable. One suchmaterial is Sugarcane waste

(Bagasse) .Considering millions oftons of waste produced annuallyacross the country, which not onlyposes the problem of disposal butalso adds to environmentalcontamination and health risks,utilization of such wastes andtheir subsidiary products asalternatives to soil stabilizationmay effectively contribute toenvironmental preservation andminimization of their adverseeffects on the environment. In thepresent study, sugar cane waste(Bagasse) is used as a waste tocombine with soil so that theplasticity properties of soil wereinvestigated in different mixtureproportions. Then the plasticityproperties of soils includingliquid and plasticity limits as

well as plasticity index, alreadymeasured, were compared with thoseof the experimental specimens mixedwith sugarcane waste (Bagasse) indifferent proportions.

LITERATURE REVIEW

SOIL STABLIZATION Definition

Soil stabilization is the processof altering some soil properties bydifferent methods, mechanical orchemical in order to produce animproved soil material which hasall the desired engineeringproperties. Soils are generallystabilized to increase theirstrength and durability or toprevent erosion and dust formation

in soils. The main aim is thecreation of a soil material orsystem that will hold under thedesign use conditions and for thedesigned life of the engineeringproject. The properties of soilvary a great deal at differentplaces or in certain cases even atone place; the success of soilstabilization depends on soiltesting. Various methods areemployed to stabilize soil and themethod should be verified in thelab with the soil material beforeapplying it on the field.

Principles of Soil Stabilization:

• Evaluating the soil properties ofthe area under consideration.

• Deciding the property of soilwhich needs to be altered to getthe design value and choose theeffective and economical method forstabilization. • Designing the Stabilized soil mixsample and testing it in the labfor intended stability anddurability values.

Purposes of soil stabilization

Soil modification or stabilizationis usually carried out to achievethe following goals:· Increasing soil strength,geotechnical properties And bearing capacity· Changing soil permeability,reducing water Absorption percentage andpreventing soil

Swelling and compaction· Preventing structuresubsidence· Reducing adhesion in highlyadhesive soils· Increasing adhesion in soilswith low adhesion (sands)· Increasing safety factoragainst slope, levees and earth dam sliding· Increasing soil endurance,modification of soft and low-resistance soils, andpreventing soil erosion· Reducing soil plasticity index

Aim of study The present study examines theinfluence of sugar

cane waste (Bagasse) as achemical stabilizer for Improving the soil strength.

MATERIAL & METHOD The Bagasse is the fibrous waste produced after the extraction of the sugar juice from cane. This material usually poses a disposal problem in sugar factories particularly in tropical countries like India. In many tropical countries there are substantial quantities of Bagasse (the fibrous residue from the crushing the sugarcane) is rich in amorphous silica indicated that it has pozzolanic properties. A typical chemical analysis of Bagasse might be (on a washed and dried basis):

Cellulose  45–55%Hemi cellulose  20–25%Lignin  18–24%Ash 1–4%Waxes  <1%

METHODOLOGYIn order to conduct this study,sugar cane waste (Bagasse) is used.The Standard Proctor Compactiontests are done to assess the amountof compaction and the water contentrequired in the field. The watercontent at which the maximum drydensity is attained is obtainedfrom the relationships provided bythe tests. The California BearingRatio test was conducted todetermine the optimum amount ofplastic strips in soil. This isdone by mixing soil with varying

percentages (0.0%, 0.2%, 0.4% etc.)of sugarcane waste (Bagasse) insoil and the 4 day soaked CBR Valueis obtained. Plate load tests areconducted with plain soil, soilstabilized with optimum percentageof sugarcane waste (Bagasse).Load-settlement graphs for eachplate load test are drawn. For eachload-settlement graph, the loadcorresponding to 4mm settlement wasnoted. The ultimate load andcorresponding settlement of theplate is also determined from theload- settlement graph plotted forvarious test arrangements.

REFERENCES

1. Punmia B.C,“Soil Mechanics &Foundations” Laxmi Publications.

2. M. Chittaranjan, Agriculturalwastes as soil

Stabilizers, InternationalJournal of Earth Sciences and Engineering ISSN0974-5904, Volume 04, No 06 SPL, October2011.

3. A.V.Narasimha Rao”Applicationsof agricultural and domesticwastes in geotechnicalApplications”JournalofEnvironmental Research andDevelopment”Vol-5,No.3,Jan-March,2011 pp:673-678