RESEARCH AND TESTING CENTRE

CHARTING THE

FUTURE OF

CONSTRUCTION

TECHNOLOGY

Servo controlled Universal Testing Machine for tension, compression, cyclic and fatigue tests upto 1200kN

Geo data bank of LTCRTC

Water permeability for durabilitytests on concrete

Chloride Migration Coefficient Test for durability of concrete

Z score of LTCRTC on yield strength of#6 and #8 dia rebars (-0.3 and -0.7) under Proficiency Test by ASTM, USA, 2018

Data analysis on materials, test methods and equipment

Design of thermal efficient concrete mixes for mass concrete by calorimeter

L&T Construction, India’s largest construction organization and ranked among the world’s top 30 contractors, has been over the past eight decades transforming cityscapes and landscapes with structures of immense size and grandeur. It operates in over 30 countries worldwide. A strong, customer–focused approach and the constant quest for top-class quality have enabled L&T Construction to attain and sustain leadership in this major line of business. Several outstanding landmarks, both in India and overseas, stand tall as testimony to the excellence of L&T’s construction that is a result of being sure of the materials that are used in the construction process.

Since 2000, L&T Construction’s Research and Testing Centre (LTCRTC), Chennai, has been involved in various types of testing and methodologies of construction. The Research and Testing Centre is an ISO/IEC 17025 certified NABL accredited laboratory with about 150 accredited test parameters for construction materials such as steel, concrete, rock, asphalt, wood, strands, couplers, sealants etc. LTCRTC caters to the needs of about 50 L&T project sites performing around 7000 tests annually. It is the first and unique testing facility developed and in operation by a construction company in India.

Participation in National and International Proficiency Testing programmes

Stress and strain controlled tests on soil

Force ductility tests on neat and modified asphalt binders

Resilient Modulus tests on virgin and stabilised soils

Quality assessment of rock

Quality checks on reinforcement bars

Growth of value added services

Since 2006

SETTING BENCHMARKS IN MATERIALS TESTING

Jaw crusher to access quality of quarry

materials

The Research and Testing Centre plays a vital role in the construction process with specific areas of expertise being:

• Evaluationandtestingofconstructionmaterialsfromtheproject site and guidance on its quality

• Identificationofgapsinqualitystandards,implementationofconstructionmethodologiesatsitesandresolutionoftechnicalissues

• Conductingappliedresearchtoprovideeconomicalandinnovativeproducts,sustainableconstructionmethodologies,improvequalityofmaterialandenhancespeedofconstruction

• ImplementimprovedandlatesttechnologiesbyliaisingacrossbusinessverticalsandsegmentsofL&TConstruction

• Facilitatelearningandimproveknowledgeskills

• TrainingtoQA/QCengineers

The research and testing Centre is recognized as a private in-house R&DCentreunderDSIR(DepartmentofScientific&IndustrialResearch),Govt. of India

Since 2008

Indigenously developed L&T Creep testing machine for concrete (Patent pending)

Patent on heavy duty rheometer

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in every year thereafter.

High volume fly ash concrete, HHL Centre, Chennai

Site-specific shear wave spectrum for thermal power plant

Rheological behaviour of self flow concrete and normal concrete

SCC in superstructure bottom-up method ofconcreting, sandwich slab construction with

SCC at TC II, Chennai

Efficiency of ternary mixes in the control of mass concrete temperature

First composite pavement in India by L&T at NHAI Krishnagiri

Thopurghat Road Project

Permeability of plastic concrete based on many site mixes developed for cut-off walls

Improving poor soils by mechanical stabilisation for runway construction

Innovation and Technologyto make hallmarks through R&D for the future

Copyrights on algorithmsa) OptimizationofstructuralconcretemembersbasedonIS456withgeneticalgorithm

b) Optimizationofstormwaterdrainlayoutforswitchyards

Patents

1. Curing of concrete, is it a notional comfort or a technical solace in present day environment? ICI Journal, 2018

2. Compatibility of chemical admixtures in high volume fly ash concrete mixes, 2018

3. An experimental investigation on bond behaviour of structural lightweight concrete, 2018

4. Virtual study on influence of rigid pavement design parameters for Indian Highways, 2018

5. Design mix specifications of plastic concrete for dam cut-off diaphragm walls DFI-India : 7th Conference on Deep Foundation Technologies for Infrastructure Development in India, 2017

6. Construction chemicals - will they reduce global warming and conserve natural water?, The Institution of Engineers (India), Chennai, 2017

7. Quality Control using NDT in the construction industry, NDE, 2017

8. Use of admixtures and Construction chemicals in current construction Industry, The Institution of Engineers (India), Chennai, 2016

9. General issues in Precast Construction Practices in India, Precast Construction Practices in India, ICI, 2016

10. Application of zero slump concrete in pavement and dam structures, 4th fib International Congress and Exhibition, 2014

11. Experimental studies on wire rope loop connections for precast concrete wall panels, 4th fib International Congress and Exhibition, 2014

12. Say Aye to good QA/QC procedures and Nay to Jugaad technologies in construction, The Institution of Engineers (India), Chennai, 2014

13. Light weight concrete applications in Buildings, CEMCON, 2013

14. Construction and Evaluation of India’s first Composite Pavement L&T-Technology Conclave, 2013

15. India’s first composite pavement constructed using cementitious hydraulic layers, stress absorbing membrane inlayer, SAMI and PMB Asphalt Layers, Annex - XI Indian Road Congress - 37, 2012

16. Test method development to evaluate bituminous layers bond strength, Highway Research Record no. 38, 2011

17. Replacement of brick jelly concrete with low strength flowable concrete for sunken slabs, Indian Building Congress, 2011

18. Quality control for high rise concrete buildings, CEMCON, 2011

19. Evaluation of Dynamic Soil Properties by Cross-hole seismic testing at a power plant, International Conference on Structural Mechanics in Reactor Technology, 2011

20. Development of two level cost optimum design procedure for RC multi-storied frames using genetic algorithm, International Conference on Structural Mechanics in Reactor Technology, 2011

21. Evaluation of hardened concrete by nondestructive and partial destructive methods, International Conference on Structural Mechanics in Reactor Technology, 2011

22. A Study on Resilient Modulus of Pavement Materials, 1st International Conference, Transportation Research Group (TRG), India, 2011

Research contribution through publications

Special high strength and high durability mixes for metros, nuclear reactors, dams. Conservation of natural water of 502 million litres, Hyderabad Metro Rail.

Analysis of raw water and processed water for quality improvement

Durable concrete mixes and cement mortars in mega structures - DLF Capital Greens, Delhi

Innovative refurbishing techniques for bridge decks with light weight concrete and geo-synthetics

Special design of foundation structures for solar projects

Plastic concrete design and implementationin dam cut off walls

Assessment and rehabilitation of NH corridors

Structural design review and NDT assessment of special structures

Fibre Reinforced Shotcrete mix with energy absorption features for tunnels

Design and implementation of Self Compacting Concrete for water retaining structures

Assessment of cryogenic tank foundation structure

Some LANDMARK STRUCTURES representing triumphs of testing

Engineering TOMORROW, TODAY...R&Dactivitiesarefocusedonmajorareassuchasconcretetechnology,structuralengineering,geotechnicalengineering,pavementengineering,chemicaltestingandexperimentalinstrumentationinlaboratoryandfieldmonitoring

1. CONCRETE TECHNOLOGY•Testsoncement,freshandhardenedconcrete,

aggregate,blocks,bricks,sealants•Non-destructivetestingonRCCstructures•Concretemixandgroutdevelopmentforspecific

projectrequirement•Self-compactingconcrete(M20-M100)•Nocementconcrete(M20-M60)•Evaluationofhydrationkineticsofcement

compositionusingcalorimeter•3Dmixesandrheology•Structurallightweightconcrete

(Density1600-2000kg/m3)•Non-structurallightweightconcrete(Density800-

1200kg/m3)

•Ready-mixgrout(40-80MPa)•Drymixmortarforplasterapplication(M3-M10)•Drymixconcreteforcoldclimate(M20-M40)•Heavyandlightweightperviousandimperviousconcrete•Plasticconcreteforcutoffwalls•Fibrereinforcedshotcretemixesfortunnels•Durabilitytests-RCPT,Chloridemigrationcoefficient,

waterpermeability,acceleratedcorrosion•Lightweightblocks,walls•Thermalandacousticefficientsandwichpanelsfor

buildings•EnergyabsorbingAcropodsforcoastallines

•Lowcosthousing

2. STRUCTURAL ENGINEERING•Testsonreinforcementbars,strands,timber,couplers,

formworkassembly,metals

•Energyabsorption,flexuralstrengthdeterminationofshotcrete for tunnel lining

•CreepdeterminationforM30toM80concreteforhighrise buildings

•Bondstressdetermination

•Seismic,blockandmachinefoundationanalysis

•Fieldandlabscalemodeltestingofstructuralcomponents

•EvaluationofPrecaststructuralcomponentsandassemblies

•DesignandtestingofUltrahighstrengthconcrete

•Softwarefordesignoptimization

•Evaluationofweldingonbronzewithfatiguetesting

Energy absorption in fiber reinforced shotcrete panels

Assessment by NDT for India’s longest bridge: Dhola-Sadiya

Light gauge formwork developmental works - flexural compression flange buckling

Evaluation of Precast wallconnections

Assessment of fire affected concrete structures

No cement concrete of M40 grade

Mock up studies on evaluation of heat of hydration in massive concrete pours

Quality check of M30 grade concrete of a PT&D IC project site

Dry plaster and dry mix concrete - ready for hill terrain construction

Pervious concrete to recharge ground water - Mega IT project sites

Roller compacted concrete for dam construction

Field investigation and quality checks onconcrete deployed in buildings, bridges etc.

Production of concrete aggregates from waste concrete generated at sites - Deriving wealth from waste

Refurbishing the chemically affectedPondicherry Formwork Shop

Evaluation of Climbing cone for slip formwork

Cyclic test on 7-ply prestressing strands for bridges as per BS EN 13391

Light gauge formwork developmental works - compression buckling

3. GEOTECHNICAL ENGINEERING•Soil,rockandgeosyntheticstesting

• In-situgeotechnicaltesting

• Designandevaluationofembankment materials

• Soilmodification/stabilizationdesign and construction techniques

• Slopestabilization,anchorsandsoil nailing techniques

• Machinefoundationevaluation

• AutomatedPlateload/PileLoadtests

• DesignofcementmodifiedWMMmix

• Evaluationofrock-shotcreteinterfacepropertiesbyTriaxial tests

• DesignofPlasticConcreteforDamCutoffwalls

• Evaluationanddesignofsub-grade,sub-baseandbaseresilientmodulusforpavement

• Geotextileandgeogridevaluationforsoilstabilization

• Fieldmonitoringofpileandembankmentsettlements

Geotechnical investigation of 2700 acres land using digital maps, Sri Kalahasti

Soil Nailing for slope stabilization, Noida

Quality check on geotextiles and geosynthetics

Site investigation by cross hole sonic logging

India’s first auger bore pile installation using self-flow concrete, Rajpura

Field studies on evaluation of composite pavement using FWD equipment, KTRP

Special design for heavy-duty pavement, Apollo Proton Therapy Hospital, Chennai

Largest implementation of emulsion based cold mix with recycled asphalt material, KJRP

Customized polymer modified asphalt mixes for runways

Design of Asphalt mixes with conventional VG grade bitumen

Composite pavement Rheology characterisation of neat and modified asphalt binders using force ductility

measurements

IRC Standards and guidelines - developmental works on cement grouted bituminous

macadam

4. PAVEMENT ENGINEERING•Bituminousbindersandemulsiontesting

• Designofspecialbituminousmixesforhighintensitytraffic,portsandrunways

• DesignofMixdesignasperSuperpaveFHWAspecifications for durable roads

• ResilientModulus,DynamicModulus,Fatigue,bond,andDynamiccreeptestsonBituminousmixes

• Compositepavementdesignandconstruction

• DesignandConstructionofCementGroutedbituminousmacadam

• DesignandproductionofPotholemixforroadrepair

• Designofcolouredpavementsforparkingbays,parks,stadiumsetc

• Recyclingofpavementmaterials

• DesignofemulsionbasedcoldmixwithRAP

• PavementEvaluationandformulationofRehabilitationstrategy

• Formulationofbridgedeckrehabilitationstrategy

Polavaram cut off wall site samples Interfacial stress-strain characteristics of tunnel rock and shotcrete samples

Quick remedy for potholes in sun or rain

In-situ subgrade stabilisation with lime, Vadodara Bharuch Road Project

High plastic strain deformed specimen under triaxial state of stress with pore water drainage

Bore log profile for a depth of 100m

Quality checks on chemical admixtures used in concrete mix - IR spectrum of PCE based admixture

Active solid contents determination through muffle furnace at 1300 °C

5. CHEMICAL TESTING •Chemicaltestingonsoil,bitumen,liquidadmixtures

• Assessmentofthequalityofindustrialeffluentsandprocesswaters

• In-housetestingofwatersamplesasperInternational&National standards

• Assessmentofwaterforconstructionpurposes

• Developmentofminiscaleprocessplantsandsuitablechemicalsforwatertreatment

• Monitoringandimprovementofefficiencyintreatmentworks

• Skilltrainingandcompetencydevelopment

• AlkaliSilicareactiontestsonaggregates

• Expansion,ContractiontestsonSealants

• Testsonmaterialsunderhightemperatures

Unique test facility to qualify non-contact magnetic based proximity switch - accuracy 1 µm

L&T RCPT apparatus for assessment of durability of concrete

Field instrumentation for pile assessment

Root cause analysis and remedy for gas insulated circuit breaker foundation structure

Conservation of potable water in construction by the use of chemical admixture

Alternate cyclic test on sealants under controlled environmental temperature

L&T Maturity meter - a simple digital Bluetooth device with app

Full scale field testing upto 300t of Metro pier bracket, HMRL

Snapshots to measurements and 3D modeling

IOT application in our testing laboratory

Quality assessment of drinking water treatment plant

Alkali-Silica reaction (ASR) which is like cancer in structures - chemical

tests on aggregates

Elemental analysis of waste or raw water using

UV Spectrometer

Kjeldahl Nitrogen, Ammoniacal Nitrogenand Nitrate Nitrogen determination in

industrial waste water

TheR&DCentreiswherenewmaterialsandconstructionmethodsmetamorphosefromlabscaleto prototype and practice.

Theadvantagesofsuchatestingcentrearenumerous.Manyofthespecialtestinginthelaboratoryandfieldinvestigations have enhanced operational excellence. IndustrialR&Dfacilitatesthebusinesssegmentstounderstandthemeritsandlimitationsinusingnewproducts and enhances new standards.

Instrumentation Competitive edge

What the world thinks of RESEARCH & TESTING CENTRE Inspire. Innovate. Inform.

Very good laboratory, technical competency of the staff is good,

house keeping is very good.

K.Suryanarayanan, NABL Auditor

Excellent state-of-art facilities for testing under

one roof.

I.G. Reddy, CGM NHAI Chennai

Excellent lab for civil engineering testing. Test instruments are maintained

well. The staff members are very knowledgeable and co-operative. Glad to know that such a facility is available

in Chennai itself.

N. Jayarajan, Additional Chief Engineer, NPCIL

The lab is well equipped with facilities and advanced

machinery. R&D activities are being carried out with great

dedication. Thanks.

A. R. Bhisikar, Executive Engineer, MMRDA

An impressive facility with a wide range of

services and capability. Very good.

Gordan Clark, President, fib

Great passion visible for

concrete & sustainability.

Mohit Kapoor, Lafarge, Mumbai

ThevisitshowedthatL&Tisindeed a leader!

CVR Murty, Professor, Dept. of CE, IIT Madras

A wonderful R&D Chemical Lab exclusively for WET IC going to be very useful for us to achieve

process oriented business growth.

Mr.S.Rajavelu, Sr. Vice President and Head WSW&C IC, L&T

Excellent in-house facility. Found innovative m/c created and patented.

My all best wishes to use them for nation building purpose.

Vikas Tyagi, DRDO

Excellent facility. Very informative research being

undertaken. Dr.Sarma is very passionate

about this field.

Kumar Keshav, Managing Director, Lucknow Metro Rail Corp.

Amazed by facilities available here and dedication is astounding. It is excellent service in terms of R&D in construction industry which is

the need of the hour.

A.V. Nageswara Rao APCRDAThankyouforyourwarmwelcome,

Dr.B.S.Sarma.Iamamazedatyour advanced techniques and scale

ofworksextendedto variouskindsofengineeringfields.

Prof. Junji Yokokura, Tokyo Institute of Technology

1. ICI-“OutstandingConcreteTechnologistAward”,2017

2. ICI(CC)-UltraTech“OutstandingConcreteEngineerAward”,2016

3. EditorandAuthor,HandbookonPrecastConcreteforBuildings,ICI,2016

4. BestPaperAwardfor‘StudiesonRollerCompactedConcretewithLargeVolumeFlyAsh’–FlyashIndia:2005:International Congress

5. BestPresentationAwardin1st International Conference onBuildingMaterialsandConstructionTechnology,2005

TRAINING CONDUCTED• QA/QCaspectsandtrendsinconcreteconstruction

• AwarenessonISO/IEC17025andinternalauditortrainingprogramme

• QA/QCinConcreteWorks

AWARDS

TECHNICAL REPORTS

Excellent and enriching experience visiting R&D Lab and interaction with

Dr. Sarma and his team. This is one of the best practice to follow in construction

industry to develop our nation. Hope this will further improve for years to come.

Abdul Hasib Shaikh, Project Manager, Jacobs

L&TConstruction,GroundFloor,TCTC,MountPoonamalleeRoadManapakkamP.B.No.979,Chennai–600089

Tel:044-22528500|E-mail:Ltcrtc@lntecc.com|Web:www.Lntecc.com