Download - Sanjay Deori Microsurfacing
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Science & Innovation forCR
Indian Experiences on Microsurfacing : An Innovative
Technology for Reduction of Greenhouse Gas Emissions
Sanjay eori
Scientist
!entral Road Research Institute
"Council of Scientific & Industrial Research#
$e% elhi"India#
&'th(e)ruary *+&&
$e% elhi
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CR Science & Innovation for
,utline of -resentation
A)out Microsurfacing
$eed and Importance of Microsurfacing in India
Advantages of Microsurfacing
Specifications Adopted for Microsurfacing
Applications and Implementation of Microsurfacing -rojects in India
Environmental .enefits (rom Microsurfacing
!onclusions
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Science & Innovation forCR
Microsurfacing
A mixture consisting of : ense/graded crushed aggregates -olymer 0 latex modified )itumen
emulsion 1ater Mineral filler "cement#2 and !hemical additive
cold slurry paving system
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Science & Innovation forCR
-urposes
-reventive maintenance treatment
3sed )oth on asphalt and concrete surfaces
3sed on ur)an roads2 high%ays and airfield pavementsAddresses raveling and surface oxidation pro)lems
Improves surface friction "s4id resistance#
(ills ruts and minor surface irregularitiesSeals the pavement surface
Microsurfacing
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Science & Innovation forCR
$eed and Importance of Microsurfacing in India
5A study conducted in elhi estimates that a)out &+2+++ people dieevery year due to the complications caused )y air pollution %hich
comes to more than one death every hour67
Another study conducted in elhi revealed that :
"a# 8ehicular pollution is responsi)le for 9 ;of elhi
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Science & Innovation forCR
$eed and Importance of Microsurfacing in India
".# !lose do%n or shift all the
haBardous and polluting industries
from territory of elhi
"!# Enforce use of lo% ash coal po%er
plants located in elhi
"# !lose do%n or shift all the stone
crushers2 hot mix plants and )ric4
4ilns from territory of elhi
In &>>'2 on
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@arge amount of energy "fuel# is reCuired
during production2 transportation2 laying
and compaction of hot asphalt mixes
$eed and Importance of Microsurfacing in India
-roduces !,* "Green ouse Gas#2 particulate matters"-M#2 $,x2 S,*2!,2
8olatile ,rganic !ompounds"8,!# and
aBardous Air -ollutants"A-#
ot Mix Asphalt
@ed to Searching (or An Alternative 5!old Mix Technology6
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ose not increase the pavement height
oes not reCuire eating of mix and doing !ompaction
oes not affect the environment as %ell as human
health
oes not reCuire too much of manpo%er2 machinery
and eCuipments etc7
!an )e constructed during day and even night time
Advantages of Microsurfacing
CR Science & Innovation for
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Specifications Adopted for Microsurfacing
Items Type II " D to 9 mm# Type III " 9 to ' mm#
Application ur)an roads2 ruralroads and residential
streets2 as preventiveand rene%altreatment7
primary and inter/stateroutes2 high%ays and
run%ays to give maximums4id resistance 2 preventiveand rene%al treatment
uantity of mix" 4g0m*#
?7D to &+7' '7& to &97=
Residual .inder" ; )y %t7 of dry agg7#
97? to &+7? ?7? to &+7?
Sieve siBe -ercent passing " )y %eight#
Type II "D/9 mm# Type III "9/'mm#
>7? mm &++ &++
D7? mm >+/&++ +/>+
*7=9 mm 9?/>+ D?/+
&7&' mm D?/+ *'/?+
9++ micron =+/?+ &>/=D
=++ micron &'/=+ &*/*?
&?+ micron &+/*& /&'
? micron ?/&? ?/&?
Science & Innovation for
Grading of Aggregates
"ISSA S-E!I(I!ATI,$ A&D=#
Types of Microsurfacing
International Slurry Surfacing
Association "ISSA# Specification
CR
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Specifications Adopted for Microsurfacing
-roperties Test method ISSA @imits
Sand Equivalent Value ofSoils and Fine Aggregate
ASTM D 2419 65 Miniu
!"a#t in t$e %oss AngelesMa#$ine
ASTM &1'1 '( ) Ma*iu
Soundness of Aggregates+it$ Sodiu Sul"$ate+it$ Magnesiu Sul"$ate
ASTM & ,, 15 ) Ma*iu 25 ) Ma*iu
Properties ofPolymer ModiedBitumen Emulsion
Properties ofAggregates
-roperties Test Method @imitsVis#osit- . /Sa-0olt Furol at25 &
!S,,,3 2(1(( Se#
arti#le &$arge .7ve8ve
!S,,,3 7ve
Settleent and Storage
Sta0ilit- after 24$
!S,,,3 1) /a*
Tests on Residue
:esidue 0- eva"oration !S,,,3 6() /in
Softening "oint /: ;
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Specifications Adopted for Microsurfacing
Science & Innovation forCR
Properties ofesigned Mi!
-roperties Test Method ISSA @imits "A &D=#Mi* Tie = 33>F /25>& !SSAT < 11' 12( Se#onds Miniu
?et &o$esion = '( Minutes /Set= 6( Minutes/Traffi#
!SSA T
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Applications and Implementation of Microsurfacing -rojects in India
$e% elhi Municipal !ouncil "$M!# is first organisation %hich introduced
Microsurfacing technology in India
during *+++/*++&
Microsurfacing @aid on -rithviraj
Road "T%o layers# and on 1insor-lace Round A)out
Applied Microsurfacing as preventive maintenance
treatment in place of
conventional dense graded hot mix asphalt
Seen as an environment
friendly cold mix technology
(irst Microsurfacing -roject in elhi
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Pre "ConstructionEvaluation Structural condition ofpavement # Ben$elman %eamdeection test 'unctional condition of
pavement# Roug(ness
measurements Surface distressmeasurement
Tra)c volume survey
-re/!onstruction Evaluation of -avement Sections @aid %ith Microsurfacing
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Machine for @aying Microsurfacing Spreading of Microsurfacing
uantities of Materials !onsumed "Range#
Item Range Specifieduantity
Aggregate . g82 61( 39
Eulsion. ) 0- +tof Mi*
1214 1114
@aying of Microsurfacing
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Application of Microsurfacing on $ational igh%ay
A demonstration project )y -u)lic 1or4s epartment of Assam
,n $ational igh%ay $o7 =2 near
Gu%ahati
To operate 0 use
Microsurfacing machine
availa)le %ith -u)lic 1or4s
epartment of Assam
$atural ru))er produced in the
$orth/ Eastern region used for
modification of )itumen emulsion
Microsurfacing -roject in Assam
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Materials 3sed in Assam -roject
Aggregates granite aggregates availa)le in Gu%ahati ISSA grading Type III
Emulsion $atural ru))er modified )itumen emulsion
!omposition of esigned Mix and its -roperties
Ingredients -ercent )y %eight of aggregate
Aggregate &++;
Emulsion &+7? ;
-ortland !ement +7*?;
Additive +7?;
1ater &+7?;
-roperties 8alues ISSA @imit
Mixing time &*+ sec7 &*+ sec "min7#
!ohesion =+ minute 9+ minute
*=7 4g7cm*?7= 4g7cm
&* 4g7cm "min7#*+ 4g7cm "min7#
1et Trac4 A)rasion test ?&= g0m* ?=' g0m* "max7#
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!ali)ration of Microsurfacing Machine
Ingredients uantity deliveredper minute
Aggregate 949 g
Eulsion 12( g
?ater 12( %itre
Additive 44 g
&eent 96 g
(lo% of Ingredients as per esigned Mix
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@arge $um)er of Roads @aid %ith Microsurfacing in elhi
-eriodic 0 -reventive maintenance treatments of
$M! roads )efore 5!1G *+&+ 6
Single layer of Microsurfacing applied over ne%ly laid
profile correction course "of .M and S.!#
ou)le layers of Microsurfacing also applied
Ban"at$
/ Dou0le Mi#rosurfa#ing . BuneC(3
aal Attaur@ Marg
/ Single Mi#rosurfa#ing . Mar#$C(9:aai Marg
/ SD
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Roads under $e% elhi Municipal !ouncil @aid %ith Microsurfacing
1
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-ost/ !onstruction evaluation of Microsurfacing
Roughness and istress ata on Microsurfacing at -rithviraj Road at ifferent Interval of Time
uration
"months#
Average Roughness
"mm04m#
Total istress
"percent#.efore Treatment *>>& >79
ImmediatelyAfter Treatment
***9 +7&
9 *=&? +7=
&* *D?' &7
&' *?*9 &7>
* *9&9 *7*
== *9?+ D7D
=> *D ?7&
D' *'+9 7*
9+ *'?? &&7+
Single layer of Microsurfacing 7? 4g 0 m*
could )ring do%n roughness value )y a)out
*?+ H =++ mm04m7
T%o layers of Microsurfacing reduced roughness )y
9++H++ mm04m7
,)servations
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Science & Innovation forCR
!onclusions
&7 Microsurfacing is an environment friendly2 energy saving 2 fast and safe2 ideal and sustaina)le
cold mix technology for preventive and periodic maintenance treatment particularly of ur)an
roads7
*7 T%o layers of Microsurfacing "Type/II# %ith stringent Cuality control measures and good Cuality
materials2 applied on a structurally sound pavement %ith good drainage system2 at an
application rate of &? 4g0 sC7m2 can give a life of even upto '/> years in ur)an conditions
" -rithviraj Road in elhi is a good example#7
=7 Savings of a)out + ; in road construction materials and >+; in energy consumption can )eeffected %hen Microsurfacing is used as maintenance treatment7
D7 In terms of Green ouse Gas emissions2 >+; of !,* 2 *; of $,x and +; of S,x can )e
reduced using Microsurfacing in comparison to the conventional hot )ituminous mixes7
?7 Indian Roads !ongress"IR!# has pu)lished IR!: S-:'&/*++' 5Tentative Specifications for Slurry
Seal and Microsurfacing6 in $ovem)er *++'7
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S i & I ti f
T(an$ *ou
CR