Shivam Concrete Technology & Consultancy Pvt. Ltd. 1
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A One Stop Solution Provider For Enhancement of
Serviceability and Life of Structure
Shivam Concrete Technology &
Consultancy Pvt. Ltd
Shivam Concrete Technology & Consultancy Pvt. Ltd. 2
Introduction
Vision: To be a leader in providing all possible solution in field of Enhancing Serviceability and Life for all type of structures
Mission: To satisfy client by providing effective solutions through continuous innovative and faster (In – time) execution of project through strong planning AND being quality conscious
About Us:Shivam Concrete Technology & Consultancy Pvt. Ltd. is realization of dream of Mr. Laxmikant Thakkar (Managing Director) to increase life and utility of structure by providing best possible treatments for strengthening/rehabilitation based experience and scientific analysis. At Shivam Concrete Technology we thrive to give best services in most professional way. We provide services ranging from Visual Inspection to Modern Testing (NDT), Drafting strengthening/rehabilitation proposals to carrying out the rehabilitation work.
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Introduction
It was very modest beginning of Shivam Concrete Technology & Consultancy Pvt. Ltd. It
started with proprietor concern "SHIVAM CONSTRUCTION'. In early days it use to carry out
repair works of Bridges, Aqueduct & Overhead tank by Guiniting. But following His dreams
and Vision of providing best service it is now change it focus to become one stop solution
provider for all rehabilitation needs of structure.
Now it is has been providing best treatments e.g. Polymer Modified Cement Mortar, Fibre
reinforced repair mortar, Polymer Cement Grout, Wrapping, Corrosion Inhibiting, etc. Till date it
has carried rehabilitation of over 90 bridges under Shivam Construction for various agency e.g.
National Highway Authority of India and State Government by serving Clients like L&T, IRB,
NCC, Sadbhav Engineering, Dosal, Patel Engineering, M/s Khurana and many more.
As of now we have inspected and design rehabilitation proposal for more than 50 bridges for
L&T (NHAI Project), IRB (NHAI Project) and Public Works Departments. And carried out
testing NDT testing for over 35 bridge and Bridge Load test for 16 bridges for L&T, Madhucon
Projects Ltd., C V Kand Consultants and PWD.
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Services Offered
Consultancy
Testing
Execution
Structural ModificationStrengthening &
Presstresing
SCTCPL
Corrosion(Half Cell, Carbonation, etc.)
Rehab Proposal
Cost Estimation
Tender Preparation
Extension of Existing Structure
Bearing Replacement
Wrapping (Glass/Carbon)
External Prestressing
Jacketing
PC/Epoxy grouting
Epoxy/PMC mortar
Railing/Expansion joint
Bridge Load TestStrength
(USPV, Rebound hammer, Core Test)
GPR of existing structure(details of reinforcement,
voids, etc.)
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Our Role
We shoulder the responsibility and be a part of the Team
SCTCPL
Designing Rehabilitation
Proposal
Getting Approval of Rehabilitation Scheme from IC
Testing of New and Existing Structures
Cost Estimation
ExecutionResolving Technical
Issues
Speedy and Quality Work
Committed to complete
work in time
Which Saves Time and
Money
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Structural Repairs
Repair Materials Cementious grouts
Chemical Grout
(Epoxy,etc.)
Fibre (Glass/Carbon)
wrap
Sealants
Membranes
Corrosion Inhibitors
Protective Coatings
Repair Techniques
Replacement of structural
components
Pressure injection Grouting
Polymer Modified Cement
Mortar
Concrete Overlays
Structural upgrades
Corrosion mitigation
Wrapping
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Provide solution to all the needs of rehabilitation and strengthening of various structures (consultancy to execution)
Strong execution capability along with in depth planning (Has completed rehabilitation of 4 major bridges and 4 minor bridges, spread across distance of 50 kms, in record time of 2.5 months. Replaced the 6 bearings of Major bridge within 7 days)
Vast Experience of rehabilitation of over 90 bridges and 15 overhead tanks and are into rehabilitation business for last 18 years
Has capability to carry out work in most changeling conditions as well as carrying out most changeling work
Provides highest customer satisfaction (Approaches the work with equal
focus on the needs of customer/client and structure)Owns enough equipments, machineries and labour force to simultaneously
carry out rehabilitation of more than 2 major bridges
Strength
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At Shivam Concrete Technology, we are dedicated to take challenging task and complete it in time. Following exemplify the same:
Took are rehabilitation work of old Tapi bridge, where 20ft of flowing water and height of 60ft presented challenging environment to work. The work was entrusted by UP State Bridge Corporation
Completed difficult task of rehabilitation of 8 bridges in 2.5 months for Sadbhav Engineering. It help them to complete the project in time
Completed most challenging task of rehabilitation a Span and bearing replacement of Balaram Bridge in 20 days (which normally takes 2 months). It was critical for completing the project in time
Helped client with technical assistant to save bridges which were to reconstructed, hence saving money and time
Completed rehabilitation of Banas Bridge (approx length of 600mts) in 3 months where each span’s height was 10 mts.
Accomplishments
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Quality….Our focus is to satisfy client by providing high standard quality of work. We ensure quality by following international & national standards and using high quality of raw materials, following is the list of it:
• Standards:
IRC SP 37
IRC SP 40
IRC SP 51
EN 1504
Guide to Concrete Repair and Protection (Australian)
Member of International Concrete Repair Institute
• Raw Material Suppliers:
Fosroc
BASF
Atul (formerly known as Ciba Atul)
Bosch
• We have library of over 400 books, journal, case studies, seminar & codes
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Served….
• L & T • IRB Infrastructure Developers Ltd.• Nagarjuna Construction Company (NCC)• Dodsal Private Limited• Sadbhav Engineering Ltd• U P State Bridge Corporation Ltd• LG E & C – Patel J/V• Madhucon Projects Ltd.• D R Agarwal Infracon Pvt. LTD.• M/S Harcharan Singh & Co.• Apollo Hospital (L&T)• Public Works Department, Gujarat State
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Projects Completed (Consultancy)
Bridges:• Condition survey of 6 existing bridges of Palanpur – Swaroopganj Section, NH – 14 for
L&T
• Condition survey of 32 existing bridges of Bhaurch – Surat Section, NH – 8 for IRB
infrastructure
• Condition survey of Borim bridge on Zurai river in Goa for CV Kand Consultants for NHAI
• Condition survey of Major bridge at Seoni in Madha Pradesh for Sadbhav Engineering for
PWD
• Condition survey of 6 bridges of Gujarat State Highway for PWD
• Condition survey of various bridges and aqueducts for PWD, Gujarat
Buildings:• Condition survey of fire damaged Warehouse for Conchem Pvt. Ltd.
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Projects Completed (Testing)
New Bridges:- Quality Assurance• NDT Testing for quality assurance of concrete work of all newly constructed bridges of Palanpur
– Swaroopganj Section, NH – 14 for L&T
• Bridge Load testing for quality assurance of 14 newly constructed bridges of Palanpur –
Swaroopganj Section, NH – 14 for L&T
• Bridge Load testing for quality assurance of 2 newly constructed bridges of Jaipur – Agra
Expressway, NH – 11 for Madhucon Projects Ltd
Existing Bridges:- Strength and Condition Assessment• NDT Testing for Strength and Condition Assessment of 6 existing bridges of Palanpur –
Swaroopganj Section, NH – 14 for L&T
• NDT Testing for Strength and Condition Assessment of existing Borim bridges at Goa for C V
Kand Consultants Pvt. Ltd
• NDT Testing for Strength and Condition Assessment of 4 existing bridges of Gujarat State
Highway for Public Works Department (PWD)
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Projects Completed (Rehab)• Palanpur to Swaroopganj Section, NH14 Strengthening and rehabilitation of various bridges for L&T• East West Corriodor, Package VI Rehabilitation of various bridges for DIC – NCC Joint Venture
• East West Corriodor, Package V Rehabilitation of various bridges for Jilin - Sadbhav Joint Venture
• East West Corriodor, Package III Rehabilitation of various minor bridges for DIC – NCC Joint Venture
• Surat Manor Tollway project, Package I Repair of bridges (Wanki, Bam, Mirchholi, Kha, Rayam, Mindhola, Kaveri, Kharera &
Ambica) for Dodsal Private Ltd• Surat Manor Tollway project, Package II Repair and rehabilitation of existing bridges for LG E&C – Patel (J/V)
• Repair & Rehabilitation work of existing Tapi River Bridge for UP State Bridge Corporation Ltd
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Projects Completed (Rehab)
• Public Works Department Gujarat State1. Flyover to Petrochemical from NH 8 near village Ranoli (Vadodara
R&B Department)
2. Purna River Bridge (Navsari R&B Department)
3. Auranga River Bridge (Navsari R&B Department)
4. Tan River Bridge (Navsari R&B Department)
5. Zerva River Bridge (Vadodara R&B Department)
6. Aani River Bridge (Vadodara R&B Department)
7. Orsang River Bridge (Vadodara R&B Department)
8. Various aquaducts on Ukai & Damang ganga L.B.M.C
9. Special Repairs to Earthquake affected buildings (Bhuj, Ahmedabad & Bhachau) for Garrison Engineers, Indian Army
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Apollo Hospital(Case Study)BRIEF HISTORY:
Apollo Hospital near Gandhinagar is having Cardic
Treatment Facilities
Hospital Construction’s work was awarded to L&T
Hospital was having six floor to be constructed
Initially Helipad was designed on land in front of
hospital
Later it decided to located Helipad on the terrace
Hence there need of strengthening (increase size)
footing and columns of 1st two floor
Strengthening work was awarded to us.
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Tapi Old Bridge (Case Study) METHODOLOGY FOR REPAIR:
Existing foundation was opened Additional reinforcement was tie to existing after
exposing the later by chipping out them And concreting of requisite size was carried out Top surface of column was roughened and shear
anchor was provided with use approved chemical Additional reinforcement was tied to the existing
square column (600mm*600mm) to make it round Reinforcement from footing were extended to
ground floor and from ground floor to 1st floor without disturbing existing beams on four side of columns
This reinforcement were covered by shortcerting of 43 MPa Material
Apollo Hospital(Case Study)
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Tapi Old Bridge (Case Study)BRIEF HISTORY:
The bridge was constructed by Sir Sayajirao
Gaekwad
This ia an old existing bridge having 13 spans
Each span has a length of 23 Mts. And carriage way
of 5.6 Mts.
The existing bridge is a balance cantilever and a
two girder “T” type
The bridge since its inception was never undertaken
for any minor or major repairs
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Tapi Old Bridge (Case Study)
CONDITIONS OBSERVED PRIOR TO REPAIR:
Riding surface was badly damaged at expansion
joints
Some portions of slabs at expansion joints and
cross girder at that points were heavily damaged
Railing of the bridge was also badly damaged
Leaching and spalling of concrete was observed
at the bottom of girders
Several cracks were observed in main girders
Tapi Old Bridge (Case Study)
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Tapi Old Bridge (Case Study)Tapi Old Bridge (Case Study)REASON OF DAMAGES:
Due to deep water in Tapi river and pier at height
of 50 to go ft above water level, it was not possible
to make scaffold from ground level (GL) which is
20 ft below water level
Therefore inspection of bridge damages and
diagnosis was not possible and it was neglected
for a long time and was open for traffic which
detoriated the bridge very badly
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Tapi Old Bridge (Case Study) METHODOLOGY FOR REPAIR:
Bituminous wearing coat and R.C.C wearing coat were removed by jack hammer using compressed air
All plates put on expansion joints were removed Study of damaged portion at the point of
expansion joints and cross girders were carried out
Old cross girders were replaced by putting new cross girders with steel and concrete insitu
Broken portion of slab was recasted after welding extra Re-Bar as per design
Designed expansion joints, finger type were installed as per specifications
Tapi Old Bridge (Case Study)
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Tapi Old Bridge (Case Study)• METHODOLOGY FOR REPAIR:
Hanging platform for scaffold work was erected from the top of the slab
Removal of leached, spalled, honey combed concrete surface was done manually and by Mechanical chippers
Surface preparation was done by wire brushing and applying bond coat of Polymer Modified Cement (PMC) slurry along with coating of Re-Bar with PMC bond Coat
Extra steel Re-Bar was added to original Re-Bar whose diameter was below 80% of original diameter and were coated by PMC slurry bond coat
PMC mortar was applied to fill hollows and cavities manually with Masons and finished to match the existing surface
Tapi Old Bridge (Case Study)
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Tapi Old Bridge (Case Study)• METHODOLOGY FOR REPAIR:
For repairing cracks V-Groove was made by mechanical cutter and filled with Epoxy mortar
And then wholes of 200mm depth were drilled at a distance of 300mm on both sides of the girder
With help of nipples low viscosity Epoxy Grout was grouted from top of the slab with compressed air and Epoxy pump
Existing damaged R.C.C parapet was repaired using Polymer Modified Cement (PMC) Mortar
Profile corrective course of PCC was laid on the top of the slab
Water spout were fitted as per site requirement Bituminous mecadum leveling course was laid on
the top and bridge was opened for traffic
Tapi Old Bridge (Case Study)
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Tapi Old Bridge (Case Study)Contact Us
Shivam Concrete Technology & Consultancy Pvt. Ltd.
227, Panorama ComplexR C Dutt Road,Alkapuri, Vadodara – 390007GujaratTelefax- +91-265-6642505email- [email protected] Website- www.shivamconcrete.com
Contact PersonsLaxmikant Thakkar(Managing Director)M - +91-9825117843Email: [email protected]
Tapan Thakkar (Director – Finance & Projects)M - +91-9879565687Email: [email protected]