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7/24/2019 Black Cotton Soil Stabilized With Rice
1/2
Black Cotton Soil Stabilized with Rice
Husk Ash, Fly Ash and LimeAbstract: An experimental inesti!ation is carried out to study the
e""ect o" Rice husk ash, Fly ash and Lime on index and en!ineerin!
properties o" Black cotton soils# $he properties o" stabilized soil such ascompaction characteristics, uncon"ined compressie stren!th and
Cali"ornia bearin! ratio were ealuated# %arious percenta!e o" Rice husk
ash and Fly ash hae been used to improe the en!ineerin! properties o"
expansie black cotton soil# &ne in!redient at a time has been mixed with
soil and index as well as en!ineerin! properties hae been determined#
$he optimum content o" each in!redient has been mixed to!ether and the
same properties hae been ealuated# 't has been concluded that li(uid
limit ) plastic limit o" soil is reduced by addin! o" any in!redientindiidually# Howeer the improement in shrinka!e limit is not
substantial# $he standard proctor perimeter are in"luenced ne!atiely i#e#
&*C aries "rom +- to +.- usin! RHA and Fly ash# $he maximum dry
density /*001 is reduced "rom +#2+ to +#2 !m3cc# $he 4 alue decreases
"rom +5 to +6 and Cohesion alue is increases "rom 6# to + k!3cm7 usin!
RHA $he 4 alue is decreases "rom +5 to +8 and Cohesion alue increases
"rom 6# to +#+ k!3cm7 usin! "ly ash# $he CBR alue increases "rom +#7-
to 9#:8- usin! Lime, it increases "rom +#7- to+#26- usin! Fly ash and
+#7- to +#26- usin! RHA# $he CBR alue is +7#28- at combination o"
rice husk ash and "ly ash# $he ;CS alue increases with increase in
percenta!e o" rice husk ash and Fly ash# Swellin! pressure is decreases at
di""erent percenta!e o" Fly ash#
Coe""icient o" permeability is decreases at di""erent percenta!e o" Lime and
"ly ash#
7/24/2019 Black Cotton Soil Stabilized With Rice
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Determination of free swell index of soil:
+# 'S Siee o" size 87 m
7# &en
9# Balance, with an accuracy o" 6#6+!
8# raduated !lass cylinder= 7 nos#, each o" +66ml capacity
# $ake two specimens o" +6! each o" pulerised soil passin! throu!h 87m
'S Siee and oen=dry#
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