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(Fo 4e Di e'to / G a$e S'ie%tist 3 Hea$.(Fo 4e Di e'to / G a$e S'ie%tist 3 Hea$.Ri)i$ Pa-e4e%ts Di-isio%. CRRI. Ne* De&#i+Ri)i$ Pa-e4e%ts Di-isio%. CRRI. Ne* De&#i+
G o,%$ I48 o-e4e%t Te'#%o&o)ies 9oI48 o-i%) CBR o9 BC Soi&s
The materials for BC soil stabilisation comprise limeor &rdinary 5ortland Cement (&5C) 67 grademoorum of appro$ed .uality sand and Cohesi$e8on,s elling 1oil (C81)
Cement or hydrated lime in the range of 7,9% bringsremarkable impro$ement in the engineeringcharacteristics of BC soils
:se of ;eote+tiles 3 ;eofabrics 3 ;eogridsTa7&e indicates the impro$ement in the BC soilcharacteristics
Use o9 Geo;te<ti&es = Geo;) i$s = Geo;9a7 i's9o G o,%$ I48 o-e4e%t
This techni.ue has tremendous potential for its application inBC soil areas
;eote+tile layer acts as a reinforcing layer and is used tocombat reflecti$e cracking in the pa$ement structure
*lso thickness reduction of pa$ement from 0 to 29%
The cost of ;eote+tiles is the stumbling factor for its iderapplication in India
"o e$er in special areas such as BC soil areas ;eo,te+tilesoffer a $iable solution to high ay engineering problems(Fi)" >. ? a%$ @ use of ;eo,te+tiles)
Case;Histo ies o9 Hi)#*a!Co%st ,'tio% i% BC Soi& A eas
'our <aning of 8ational "igh ay,6 (8",6) passing through BC1oil *reas
8",6 is one of the four arms of 8ational "igh ay 8et orkpopularly kno n as ;olden =uadrilateral ha$ing length ofabout >000 km as a component of 8ational "igh ay-e$elopment 5roject (8"-5)
idening of the e+isting 2,lane stretch passing through BC 1oilarea from 1atara (km ?29 00) to @aharashtra 1tate Border1ection of 8",6 (km 9A2 260) to 6,lane di$ided carriage ayand strengthening of the e+isting 2,lane section on B&T basisConstruction of Bombay,5une #+press ay passing through BC1oil *rea from 5une end (1ection -)
The BC soil deposits e+isting on the road alignment ere carefullyreplaced ith C81 soil ha$ing 5I $alue ranging bet een 9 to 9 and1 elling Inde+ (1I) ranging bet een ? to 79 in the entire length of thene carriage ay
1ince the good .uality C81 soil (@oorum) as readily a$ailable inabundance from the nearby moorum .uarries along the e+istingcarriage ay hence no BC soil stabilisation as re.uired
Fi)" 2 a%$ sho compaction of C81 soil (moorum) for the ne2,lane carriage ay
Fi)" sho s compaction of -ry <ean Concrete (-<C) as sub,base layerunder constructionFi)" sho s pa$ement =uality concrete (5=C) layer under construction
Fi)"01 * $ie of si+ lane di$ided Bombay,5une #+press ay