Cold MixCold MixTechnologyTechnologyJourney made and road ahead…Journey made and road ahead…

WHAT IS CSIR-CRRI ?

� The Central Road Research Institute, popularly known as CSIR- CRRI, is the premier national research organization for roads, traffic and transport planning and all other allied aspects. It carries out R&D in the areas of road and road transportation and provide highest level of professional consultancy.

� Training is an important activity of the institute. CRRI offers several refresher/ training and development programmes designed to suit the requirement of different target groups.

About BitchemAbout Bitchem� Pioneer and India’s largest cold mix technology company.

� CRRI’s Exclusive licensee of Cold Mix for Pan India.

� Experience of more than 2500 Km of CRRI- Bitchem Cold Mixpaving of Roads in challenging conditions and remote ruralareas.

About SM GroupAbout SM Group� SM Group is a well-diversified business house of NE Region

headquartered in Guwahati.

� Revenues touching INR 1000 Crores.

� The Group today has built an impressive reputation in the fieldof Steel distribution, Met Coke and Road Science value-added products.

� At BitChem, we ’ ve inherited the SM Group ’ s values ofintegrity and trust.

Hot Mix Technology -Overview

� Heating of bitumen at 170°C � Heating of aggregates at 155°C for hot mix � Production of hot mix at 150°C � Laying of hot mix at 135°C �Compaction of hot mix at 125°C

DisadvantagesDisadvantages ofofHotHot MixMix TechnologyTechnology

� Noise and air pollution� High energy consumption� Limited working season- No work

during rains and cold winters� Sensitive to temperature control

during entire process.� Unsafe to workers and their

health� Thermal oxidation of bitumen

due to need of heating.� Hazardous for public in general

Hot Mix Technology: Hazardous to LabourHot Mix Technology: Hazardous to Labour

Hot Mix Technology: High Air PollutionHot Mix Technology: High Air Pollution

Hot Mix Technology: Hot Mix Technology: No work during rainsNo work during rains

Simple Solution for Unique Problems Simple Solution for Unique Problems ––

CRRICRRI-- Bitchem Bitchem Cold Mix TechnologyCold Mix Technology

WhatWhat isisCRRICRRI--BitchemBitchem ColdCold MixMix technology?technology?

� Cold Mix technology is field application of mix design basedon tailor-made CRRI-Bitchem cold mix binders with theavailable IRC recommended aggregates through modifiedHMP plant or site mixing without need of any heating in anenvironment-friendly manner.

� It is not simply supply of ordinary bitumen emulsions.

� It is the entire value chain of technology from laboratory mixdesigns, supply of tailor made cold mix binder and overseeingthe entire mixing, laying & rolling activities through technicalsupport and supervision services.

Application of CRRI-Bitchem Cold Mix Technology for Rural Roads � Surface Dressing� Premix Carpet� Mix Seal Surfacing� Patch Work� Pothole Repair

Procedure for construction of open graded premix carpet (using hot mix plant)

� The blended aggregates of 13.2 mm and 11.2 mm nominal sizes in2:1 ratio, as per the specified requirement, shall be charged in thehot mix plant which shall be used without heating arrangementand with suitable modification for incorporation of emulsion.

� The cold mix binder in required quantity approximately(6 percentby wt. of aggregates) shall then be added into wet aggregateand mixed for two minutes to get uniform coating.

� Prolonged mixing shall be avoided as it will uncoat the aggregates.� The cold mixed open graded premix may also be prepared in a

concrete mixer.� The required quantity of emulsion of tailor made cold mix binder

shall then be added and mixed with aggregates for two minutes

� The cold mix while indicating brown colour shall be discharged intotrolleys to transport to the construction site

� Compaction of cold mix with 8-10 tone roller shall be carried out toget the finished premix carpet surface

� The required quantity of emulsion of tailor made cold mix bindershall then be added and mixed with aggregates for two minutes

� The cold mix while indicating brown colour shall be discharged intotrolleys to transport to the construction site

� Compaction of cold mix with 8-10 tone roller shall be carried out toget the finished premix carpet surface

Types Of BitChem Cold Mix Binder� Supreme� All In 1 Binder� Ezee 2 In 1 Binder� Ezee QS Binder� Ezee PC� PC Type

Preparation of Cold mix

Laying of Cold Mix

Preparation of Cold mix

Rolling of Cold Mix

Application of Tack Coat Mixing in Concrete Mixer

Laying of Premix Rolling of Premix

Laying & Compaction of Cold Mix

Performance of Rural Roads with Cold Mix Technology

Selecting required grade of cold mix binder

Check required grade of Cold Mix Binder before use

Drum Sticker

Completed cold mix road

Rolling of Seal Coat application Rolling operation is to be donefor 5 to 6 times. During rollingoperation, wheels of the rollershould be cleaned by wet clothor gunny bag to avoid falling ofdirt on the surface. Compactedthickness of the finished roadshould be 20 mm.

Ready cold mix road

Allow slow and light trafficafter 1 hour of completionof seal coat application

Why This Technology?COLD MIX HOT MIX

No heating required. Pollution free Green Road Concept

Emission of Air Pollutants

Heating cost is completely saved and is also environment friendly

High Energy Requirement

Faster Progress – Completes 1km in 3-4 days with proper manpower and support (by using Concrete Mixer)

Low Output for Mix Production and Laying work in rains / cold

Local & semiskilled labor can execute the work.

Loss of Adhesion at High Altitude Due to sudden drop of Temperature

No chance of accident of labor Maximum chance of accident of labor during work execution

� 2-3 times faster progress using existing facilities at site withoutany extra investment in capacity building or equipments.

� Green Technology: Non polluting process , no heating, savesfuel and 90% energy efficient.

� Highly durable - contains anti-stripping properties, performingbetter than Hot Mix roads.

� All weather construction- during monsoons and cold winterson dry days.

Advantages of CRRI – Bitchem Cold Mix Technology

BenefitsBenefits to Indiato India

Social-� No adverse effect on health.� Friendly to local construction workers.

Economical-� Higher progress, faster connectivity, avoids escalations.� Eradicates need of subsidized fuel equivalent to 3375 million

INR.

Environmental-� 1,500 liter per Km means annually programme of 30,000 km

can save the nation 45 million liter and 145.35 million kgcarbon footprints

� Bitchem is the largest cold mix technology company in India.

� Approved by various PWD’s in India.

� Since 2015, Successfully completed more than 2500 km roads in India till date.. credentials available.

� Under Exclusive Cold Mix Technology License from CSIR-CRRI on Pan India Basis.

� Bitchem deploys well-trained Technical services to provide error-free construction a site.

� 5 Years performance evaluation report of Bitchem cold mix conducted by CSIR-NEIST, Jorhat, Assam found performance of Bitchem cold mix superior than conventional hot mix.

Why CRRI chose Why CRRI chose Bitchem only for this Bitchem only for this license ?license ?

� NRRDA in 11th 5 year plan in 2007 launched its R&D objectivesto promote Cold Mix Technology in rural roads for progress,environment friendly and all weather construction.

� In 2008, CRRI & NRRDA indentified Assam as State Partner topilot Cold Mix.

� IIT Guwahati was STA to evaluate performance of Cold Mix,Bitchem was the execution partner.

� In 2009, NRRDA directed Govt. Of Assam to utilize 500 Kms ofCold Mix Technology.

� Bitchem has “Certificate of Field Use” PWD Assam for over1600 Km.

� In 2013, Five year performance evaluation of Cold Mix wasconducted by CSIR-NEIST, Jorhat for Bitchem Cold Mix.

� Pan India License from CSIR-CRRI for Cold Mix Technology

� Bitchem has credentials of large-scale demonstration of coldmix technology in various States of the country.

History of Cold Mix Technology History of Cold Mix Technology Partnership between CRRI & BitchemPartnership between CRRI & Bitchem� In 2007, CRRI develops laboratory and field case-studies in

2007.

� Since 2008, Bitchem start field performance evaluation inAssam under NRRDA support.

� In 2010, World Emulsion Congress held in Lyon, France invitesCRRI & Bitchem for presentation of cold mix joint paper oncold mix technology.

� In 2011, CRRI grants NE India License and East India License toBitchem.

� In 2013, CRRI joins hand with Bitchem for Pan-India scale upcold mix technology in roads sector.

Cold Mix TechnologyCold Mix TechnologyWorkshop cum Demonstration( WCD)Workshop cum Demonstration( WCD)

OverviewOverview

CSIR-CRRI and Bitchem under the guidance of NRRDA are performing Workshop cum Demonstration (WCD) of Cold Mix Technology across the country.

Advantage of WCDAdvantage of WCD� Knowledge about the total execution of the technology at

the field level.� Understand large scale implementation of technology.� Exchange of information between CSIR-CRRI, State Agency

and Bitchem

WCD Completed at:WCD Completed at:

� Maharashtra� Himachal Pradesh� Bihar� West Bengal� Odisha� Karnataka� Uttarakhand

UpcomingUpcoming WCDsWCDs

� Madhya Pradesh� Uttar Pradesh� Punjab� Jammu & Kashmir

Report on 7 WCDs

What is CRRIWhat is CRRI--Bitchem Bitchem Cold Mix Binder?Cold Mix Binder?

And what makes it different from And what makes it different from other emulsion in the market ? other emulsion in the market ?

� Regular Bitumen Emulsion in the market is mainly RS1, MS, SS-1or CSS-1, SS-2 Cationic Bitumen Emulsion as per IS 8887:2004.These are only for spraying purpose to be used in Tack Coatand Prime Coat application and few of them may be tried forcold mix applications. IRC mentions about tailor madebitumen emulsions for appropriate cold mix design.

� It is manufactured with certain performance additives andanti-stripping agents and possesses setting characteristicsrequired for the particular climatic zone and aggregateconditions.

� CRRI-Bitchem Cold Mix Binder is a mix design based tailormade bitumen binder. The main feature of this mix designprocess is to identify and optimize the binder as per theaggregates available from any source in India i.e. dustyaggregates, soil coated aggregates, clean aggregates,damp aggregates, pea gravel aggregates or (lime mix)aggregates.

� This binder exceeds IS 8887 : 2004 specification of MS and SS-2regular emulsions and is proven as most ideally suited for coldmix applications in our country’s conditions for OGPC, MSS,SDBC and BM.

Type of Construction as per Type of Construction as per IRC SP: 100: 2014 GuidelinesIRC SP: 100: 2014 Guidelines

CRRI developed Cold Mix technology is now a mainstream technology and can be utilized for following applications as per recently released IRC SP: 100: 2014 Guidelines-

� CRRI-BITCHEM COLD MIX (OGPC & Seal Coat)

� CRRI-BITCHEM COLD CARPET (MSS)

� CRRI-BITCHEM COLD CONCRETE (SDBC)

� CRRI-BITCHEM COLD STRUCTURE(BM)

Will purchasing of CRRIWill purchasing of CRRI--BitchemBitchemCold Mix Binder be more costlier ?Cold Mix Binder be more costlier ?

Bitchem operates depot concept depending upon the volume of works in the State and would make it most ideally available at reasonable prices equivalent to packed Bitumen VG-30 prices in the State.

Cost ImplicationCost Implication

� Initial Cost of Green Roads item to item is 10-15 % higher

� And, 2-3% total project cost.

But, It lasts 50% longer than Hot Mixand hence saves min. 35 percent

of the total cost

How we can start Cold Mix in on going How we can start Cold Mix in on going works?works?

NRRDA recommends that in case of any extra cost of convertingexisting works from Hot Mix to Cold Mix technology, the sameshall be allowed to be adjusted with “savings”.

NRRDA endeavor to scale up to Green and environment friendlyroad technology needs to be harnessed by all states in thecountry. It suggests Zero extra cost to the state Exchequer.

HowHow

is ensured ?is ensured ?

� Cold Mix Design (RCMD) Report

� Raw Material tested beforefinal production.

� Master Batch produced

� Actual Product V/s LabRCMD comparative analysis.

� Packed in New HDPE Drums , mentioning date of manufacture, shelf life, Other instructions.

� On-Site Technical Services execution till “ContractorTechnology Transfer Certificate” is jointly signed.

RecommendedRecommended ColdCold MixMixDesignDesign (RCMD)(RCMD) ReportReport

Based on the aggregatereceived from thedepartment and wassend to the laboratory fortesting.At site, aggregate forcarpeting are undergraded and seal coatwere over graded.

DPR Technical SpecificationDPR Technical Specificationon CRRIon CRRI--Bitchem Cold Mix TechnologyBitchem Cold Mix Technology

States acceptance to CRRIStates acceptance to CRRI--Bitchem Cold Mix Bitchem Cold Mix TechnologyTechnology

CRRI-Bitchem Cold Mix Technology in SOR, Arunachal Pradesh

Inclusion of Bitchem Cold Mix in Andhra Pradesh DPR

Ministry of Rural Development Ministry of Rural Development visits visits CRRICRRI--Bitchem Knowledge Centre …Bitchem Knowledge Centre …

� We invite our smart road engineers to visit the CRRI-Bitchem Knowledge Centre for building more and more Green Roads in the State

Bitchem on India MapBitchem on India Map

Thank youThank you

Bitchem Asphalt Technologies Ltd.Bitchem Asphalt Technologies Ltd.Delhi Office: E-389, SM House, GK-II, New Delhi – 110048 | M: 9711614939

Head Office: 3rd, Floor, Anil Plaza, G. S. Road, Guwahati – 781005 | M: 9435559826Kolkata Office: 10/2, DBS House, Hungerford street, Kolkata – 700017 | M: 9711614935