TerraZyme a bio-enzymatic soil stabiliser product - Manibhadra Earthmovers, Ahmedabad

About TerraZyme

Manibhadra Earthmovers is a civil engineering firm established in 1996. We specialize in the field of road work, filling work, basement and all infra-related work. Our belief in strong work ethics of providing highest quality standards and our nonnegotiable policy for the health & safety of our workers have majorly contributed to our firm’s success. We are successful today, not only because our knowledge, expertise & experience but also because of our talent pool of qualified employees that work on-site and off-site to achieve goals without compromising on quality of work.

We have experience & expertise in following types of work-

Bituminous, RCC and Paver Road
Government road
Eco friendly / All weather road
Mass Excavation & Earth Filling
Commercial, Industrial and Residential Projects
Land Stabilization

A COST-EFFICIENT & ECO FRIENDLY ALTERNATE FOR GSB AND WMM ROADS

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.

ADVANTAGES

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

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

NITK - Surathkal
NIT - Calicut
NIT - Trichy
NIT - Warangal
NIT - Jharkhand

INTERNATIONAL APPROVALS

Pennsylvania Highway Department
Canadian PWD
Brazil Highway Department
Paraguay
Equador
China
Japan
Honduras

Russia
Phillippines
Malaysia
Uganda
USAID Projects
World Bank Approved

APPLICATION PROCEDURE

Scarifying The Surface

Adding TerraZyme To Water Tank

Spraying The TerraZyme

Mixing The TerraZyme

Templating And Leveling

Compaction

Road Ready To Use

Design Comparison CBR 6, MSA 20, As per IRC 37

Conventional Design	thk in mm
GSB	260
WMM	250
DBM	90
BC	40
TOTAL	640

TerraZyme Design	thk in mm
Subgrade improved with TZ	150
Exisiting Soil + TZA + Metal 20%	150
Good Soil+ TZA + Metal 30%	100
WMM	150
DBM	50
BC	25
TOTAL	625

CALCULATION

As per IRC 37 – 2011 (MSA 20 and CBR 6%)
Elastic modulus of subgrade, E_sg = 17.6 x (CBR_sg) 0.64 MPa
Elastic modulus of granular sub-base, E_gsb = 0.2E_sg x (h_gsb) 0.45 MPa
h_gsb is the thickness granular sub base.
Elastic modulus of granular base, E_gb = 0.2 E_sg x (h_gsb + h_gb) 0.45 MPa
h_gb is the thickness granular base.
For stabilized material, E= 1000^* UCS Mpa
UCS for stabilized material = 1000kPa

KENPAVE ANALYSIS

Poisson’s Ratio varied from 0.5 to 0.4
E value for each layer was taken from the above table.
Loading – single axle single tyre

Contact Radius of circular loaded areas, CR – 17cm
Contact Pressure on circular loaded areas, CP – 560kPa
One Radial Coordinate was considered, at the loading point (RC at 0cm)

IRC 37
Standard
case

TerraZyme
Modified
case

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.

CRRI

UNIVERSITY OF BANGALORE

UCS RESULTS – NITK SURATHKAL

IMPROVEMENT BLACK COTTON SOIL

PERMEABILITY TEST RESULTS

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.