sanjay deori microsurfacing

8/11/2019 Sanjay Deori Microsurfacing

1/23

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


2/23

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


3/23


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


4/23


-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


5/23



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


6/23



".# !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


7/23Science & Innovation forCR

@arge amount of energy "fuel# is reCuired

during production2 transportation2 laying

and compaction of hot asphalt mixes


-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


8/23

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


9/23


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


10/23


-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 /: ;


11/23



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



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



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


14/23CR Science & Innovation for

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


15/23CR Science & Innovation for

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



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#



!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



@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



Roads under $e% elhi Municipal !ouncil @aid %ith Microsurfacing

1



-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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22/23


!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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sanjay deori microsurfacing

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