Shivam Concrete Technology & Consultancy Pvt. Ltd. 1 5

Shivam Concrete Technology & Consultancy Pvt. Ltd. 1

5

A One Stop Solution Provider For Enhancement of

Serviceability and Life of Structure

Shivam Concrete Technology &

Consultancy Pvt. Ltd


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.


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.


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.)


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


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


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


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


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


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


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.


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)


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


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


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.


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)


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


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)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


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)• 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)• 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)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]

mailto:[email protected]

http://www.shivamconcrete.com/



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Shivam Concrete Technology & Consultancy Pvt. Ltd. 1 5