terrazyme - a cost efficient alternate for gsb and wmm for...
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TerraZyme - A Cost Efficient alternate for GSB and WMM for roads.
Manibhadra Earthmovers is a civil engineering rm established
in 1996. We specialize in the eld of road work, lling work,
basement and all infra-related work. Our belief in strong work
ethics of providing highest quality standards and our non-
negotiable policy for the health & safety of our workers have
majorly contributed to our rm’s success. We are successful
today, not only because our knowledge, expertise & experience
but also because of our talent pool of qualied employees that
work on-site and off-site to achieve goals without compromising
on quality of work.
We have experience types of work- & expertise in following
ABOUT US
Ÿ Bituminous, RCC and Paver Road
Ÿ Government road
Ÿ Eco friendly / All weather road
Ÿ Mass Excavation & Earth Filling
Ÿ Commercial, Industrial and Residential Projects
Ÿ Land Stabilization
With changing pace and time, considering the climatic and environmental impact, we have been continuously innovating. This is our mission behind introducing and promoting TerraZyme, an eco-friendly product. We at Manibhadra Earthmovers in association with Avijeet Agencies (P) Ltd (distributors of TerraZyme in India for past 19 years) have taken up exclusive rights for Western India Region for TerraZyme. This product is manufactured by Nature Plus Inc, USA. The vast experience of 30 years in road work of Manibhadra Earthmovers and their expertise has lead has lead to this synergy of interests in promoting TerraZyme.
TerraZyme is an excellent replacement for GSB and WMM. The use of TerraZyme leads to a saving upto10% to 30% - per Sq.mt in road construction. TerraZyme is a biodegradable product made from plant and vegetable extracts. It helps in the workability of soil by improving the engineering properties of the soil like CBR value, ITS, Density. It also helps in reducing OMC, plasticity index of soil and its permeability.
A COST-EFFICIENT &
ECO FRIENDLY ALTERNATE FOR GSB AND WMM ROADS
Templating And Leveling
Compaction Road Ready To Use
Scarifying The Surface
Adding TerraZyme To Water Tank
Spraying The TerraZyme
Mixing The TerraZyme
As per IRC 37 – 2011 (MSA 20 and CBR 6%)
Elastic modulus of subgrade, E = 17.6 x (CBR ) 0.64 MPasg sg
Elastic modulus of granular sub-base, E = 0.2E x (h ) 0.45 MPagsb sg gsb
h is the thickness granular sub base.gsb
Elastic modulus of granular base, E = 0.2 E x (h + h ) 0.45 MPagb sg gsb gb
h is the thickness granular base.gb*For stabilized material, E= 1000 UCS Mpa
UCS for stabilized material = 1000kPa
CALCULATION
Poisson’s Ratio varied from 0.5 to 0.4E value for each layer was taken from the above table.Loading – single axle single tyre
KENPAVE ANALYSIS
From the above Tables it can be observed that, the vertical stress at centre line of loading is 560 KPa (at vertical coordinate of 0). When the depth of the
pavement increases the stress reduces and it become 28.399 KPa at the point just above the subgrade. This stress level has to be kept as the bench mark.
When the conventional layers are replaced by the enzyme stabilized soil the stress levels have to be lesser than that of the standard cases. Trial and error
method was adopted to find out the minimum thickness of the stabilized material. Similar observation can be made in terms of vertical displacement.
Vertical Coordinate
VerticalDisplacement
VerticalStress
VerticalStrain
RadialStress
RadialStrain
TangentialStress
TangentialStrain
0
4
13
38
64 0.0466
560
519.783
311.81
81.792
28.399
-6.54E-04
1.81E-04
1.03E-03
5.78E-04
3.62E-04
1672.149
212.87
-238.148
-34.177
-29.306
3.27E-04
-9.03E-05
-5.46E-04
-2.78E-04
-2.15E-04
1672.149
212.87
-238.148
-34.177
-29.306
3.27E-04
-9.03E-05
-5.46E-04
-2.78E-04
-2.15E-04
BC
DBM
WMM
GSB
0.08721
0.09047
0.08311
0.05857
Vertical Coordinate
VerticalDisplacement
VerticalStress
VerticalStrain
RadialStress
RadialStrain
TangentialStress
TangentialStrain
0
7.5
22.5
32.5
47.5
62.5
560
499.39
222.758
107.409
27.789
15.175
-1.81E-04
1.57E-04
2.21E-04
1.51E-04
1.65E-04
1.94E-04
722.094
231.725
2.622
-54.248
-171.534
-25.473
9.06E-05
-7.87E-05
-8.75E-05
-7.55E-05
-1.14E-04
-1.17E-04
722.094
231.725
2.622
-54.248
-171.534
-25.473
9.06E-05
-7.87E-05
-8.75E-05
-7.55E-05
-1.14E-04
-1.17E-04
BC&DBM
WMM
Soil + TZA + 30% metal
Soil + TZA+ 20% metal
Mod. SG
0.04336
0.04561
0.04119
0.03938
0.03723
0.03427
Design Comparison CBR 6, MSA 20, As per IRC 37
Conventional Design thk in mm
GSB
WMM
DBM
BC
260
250
90
40
TOTAL 640
TerraZyme Design thk in mm
Subgrade improved with TZ
Exisiting Soil + TZA + Metal 20%
Good Soil+ TZA + Metal 30%
WMM
150
150
100
150
TOTAL 625
DBM
BC
50
25
IRC 37Standard
case
TerraZymeModified
case
APPLICATION PROCEDURE
Contact Radius of circular loaded areas, CR – 17cmContact Pressure on circular loaded areas, CP – 560kPaOne Radial Coordinate was considered, at the loading point (RC at 0cm)
Fig 16. Change of CBR over time for various samples
0
5
10
15
20
25
30
35
40
45
50
Sample week 0 week 1 week 2 week 4 week 6 week 8
Time
CB
R(%
)
CL
OH
CH
CI
SX
UNIVERSITY OF BANGALORE UCS RESULTS – NITK SURATHKAL
Improvement in Soak CBR Lab (Pondicherry Soil)
14
10.3
4.19
0
2
4
6
8
10
12
14
16
Untreated 2 4Curing in Weeks
CB
R%
Improvement in ITS (Pondicherry Soil)
146
137
114
86
0
20
40
60
80
100
120
140
160
Untreated 2 3 4
Curing in weeksIT
S in
KP
a
Improvement in Fatigue Life
3506532325
17851
8076
0
5000
10000
15000
20000
25000
30000
35000
40000
Untreated 2 4 7
Curing in weeks
cycle
s
0
200
400
600
800
1000
1200
0 2 4 6 8Curing Period In Weeks
Laterite Soil
Dosage 2
0
200
400
600
800
0 2 4 6 8
Curing Period (Weeks)
Black Cotton Soil
Dosage 2
IMPROVEMENT BLACK COTTON SOIL
Variation Of Percent Reduction In Swell Potential With Curing Period Variation Of Percent Reduction In Swell Pressure With Curing Period
PERMEABILITY TEST RESULTS
-51.786 X 10
-51.786 X 10
-61.787 X 10
-71.809 X 10
-7
1.793 X 10
-91.635 X 10
-8
1.578 X 10
-71.543 X 10
-71.512 X 10
-71.487 X 10
Shedi soilPermeability in(cm/sec)
Lateritic soilPermeability in(cm/sec)
Dosage(% of Enzyme)
0
2
4
6
8
CRRI
USES OF TERRAZYME
TerraZyme can be used anywhere where GSB and WMM are used in construction as it replaces them.
• Highways
• All weather rural roads
• Internal roads in townships
• Service roads
• Factory roads
• Parking Lots and Yard area
• Sealing of ponds, landfills
• Temporary access roads
• Subgrade improvements
• Floor bases
• Road shoulders
• Construction roads
SUCCESSFUL TESTING OF TERRAZYME IN INDIA
We have been working with all reputed institutes across India for the past twelve years. Some major institutions that have associated with us are :
• Central Road Research Institute ( CRRI )- Delhi• IIT Roorkee• IIT - Bhubaneswar• University Of Bangalore - Pavement Engineering Lab• Anna University - Chennai• SASTRA - Tanjore INDIAN CLIENTS AND REFERRALS
We are proud to state that we have made TerraZyme based and Conventional roads across India, on various soil, climatic and traffic conditions. In every project TerraZyme has proved that it is cheaper than conventional methods and long lasting with a lower maintenance cycle.
• NH-66 , NH Department (Chennai circle)
• NH4A, NH Department (Goa)
• Semac Potentional Consultants
• Torrent Pharma
• Godrej Properties Ltd.
• Shapoorji Palonji
• JMC Projects
• Applewoods Township - A’bad
• Tata Housing
• Visteon
• Ennore Port
• Tata Motors - Sanand
• HN Safal
• Arvind Smartspace LLP.
• Grainspan
• Renault Nissan
• Pacifica Group
• Wipro Ltd
• Rico Auto India Ltd
• Mott Mac India
• Infosys
• Daimler Trucks
• KRRDA, Karnataka
• PRED, Karnataka
• APRRDA, Andhra Pradesh
• TSRRDA, Telangana
• DRDA, Tamil Nadu
• ORRDA, Orissa
• CGRRDA, Chattishgarh
• JRRDA, Jharkhand
• APWD, Assam
The main feature of TerraZyme is the cost saving aspect. TerraZyme saves cost upto 30% in comparison to conventional system of road construction and maintenance cost of roads is reduced by 50%• Cuts construction cost by 10% - 30%• Higher CBR value / higher road strength : TerraZyme base structures have a higher CBR value• Lowers the maintenance cost by 30 - 50%• Saves construction time by 50% • The life-cycle of TerraZyme treated roads increase by 200–300%• Pavement thickness can be reduced by up to 30 %, being semi rigid in nature• Environment friendly and bio-degradable product
ADVANTAGES
• Pennsylvania Highway Department
• Canadian PWD
• Brazil Highway Department
• Paraguay
• Equador
• China
• Japan
• Honduras
• Russia
• Phillippines
• Malaysia
• Uganda
• USAID Projects
• World Bank Approved
INTERNATIONAL APPROVALS
• NITK - Surathkal• NIT - Calicut• NIT - Trichy• NIT - Warangal• NIT - Jharkhand
NH 66 - Tindivanam
ROADS CONSTRUCTED IN INDIA
NH 4A - Goa
Reitzel India Factory
Arvind Uplands
Schwing Stetter FactoryOrissa - DRDA Road Torrent Pharma
Rann of Kutch Applewoods Township A’bad
Alstom - SanandTATA Motors - Sanand
Arvind Tata JV Township
CONTACT US
MANIBHADRA EARTHMOVERSB-305, Rudra Arcade, 132 Ft Ring Road,Nr. Helmet Cross Road, Drive-in Road,Ahmedabad - 380052PH: 079 - 2745 1106
CORPORATE OFFICE
Mr. Amit Shah Mr. Shilin Shah Mr. Anip Shah
+91 9925 710890+91 9601 787898+91 9925 360890
[email protected] | www.manibhadraearthmovers.com
WESTERN INDIA