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ULTRATECH CEMENT LTD
ANOOP K.N.251091
INTERNSHIP PRESENTATION
ULTRATECH CEMENTS(Aditya Birla Group) 2
A US $35 billion corporation, the Aditya Birla Group is in the League of Fortune 500
Anchored by an extraordinary force of over 133,000 employees, belonging to 42 different nationalities
Over 60 per cent of its revenues flow from its overseas operations.
The Group operates in 33 countries
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BUSINESS
Globally
The world’s most cost-efficient aluminium and copper producers. Hindalco-Novelis is the largest aluminium rolling company.
No.1 in viscose staple fibreThe largest producer of carbon black The 4th largest producer of insulatorsThe 5th largest producer of acrylic fibreAmong the top 10 cement producersAmong the best energy-efficient fertilizer plants
ULTRATECH CEMENTS(Aditya Birla Group)
4
In India
A top fashion player (branded apparel – Van Huesen, Louis Phileppe, Peter England , Allen solly etc…….)
The 2nd largest producer of viscose filament yarn.The largest producer in the chlor-alkali sector.Among the top three mobile telephony companies.A leading player in Life Insurance and Asset
Management.Among the top two supermarket chains in the retail
business.Among the top 10 BPO companies
ULTRATECH CEMENTS(Aditya Birla Group)
5ULTRATECH CEMENTS(Aditya Birla Group)
UltraTech cement is the 8th largest cement producer in the world
UltraTech is the country's largest exporter of cement clinker( 45% of total exports)
UltraTech and its subsidiaries have a presence in 5 countries through 11 integrated plants, 1 white cement plant, 1 clinkerisation plant, 15 grinding units, 2 rail and 3 coastal terminals and 101 RMC plants.
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OBJECTIVE OF CEMENT COMPANY??
ULTRATECH CEMENTS(Aditya Birla Group)
To be No.1
How?“ To sell as many bags possible”
○ Possible when they INNOVATE. ○ Whitetopping is one such innovative concept
promoted by cement manufacturers across world
ULTRATECH CEMENTS(Aditya Birla Group) 7
WORK ASSIGNED?
To do a study on Whitetopping technology.
Concrete mix design using blended cements for 7th day serviceability of road. Portland Pozzalana cement andPortland slag cement
ULTRATECH CEMENTS(Aditya Birla Group) 8
WHITETOPPING Definition : It’s a PCC overlay on top of
existing bituminous pavement.
How old is technology?Very old , works date back to early 1900’sPretty new to India.
ULTRATECH CEMENTS(Aditya Birla Group) 9
WHY WHITETOPPING? Rutting of bituminous pavement is a real
problem in hot climate like India, with heavy truck loads, operating under frequent start/stop conditions.
ULTRATECH CEMENTS(Aditya Birla Group) 10
ADVANTAGES Extended service life Increased structural capacity Reduced maintenance requirements and Lower life-cycle costs Improvement in safety in view of the increased
reflection of light Improving the environmental benefits – as concrete
roads are much greener and less polluting.
ULTRATECH CEMENTS(Aditya Birla Group) 11
VARIETY OF WHITETOPPING Classification based on degree of bonding
between the underlying bituminous layer with PCC overlay and the thickness of the overlay
Conventional Whitetopping: Thin Whitetopping(TWT):Ultra-Thin Whitetopping (UTWT):
ULTRATECH CEMENTS(Aditya Birla Group) 12
Conventional Whitetopping( No bonding considered)Thickness of 200 mm or moreDesigned as new rigid pavement
Thin Whitetopping( often bond considered but not mandatory)Thickness > 100mm but < 200mm
Ultra-Thin Whitetopping ( Bonding is mandatory)Thickness less than or equal to 100mm
ULTRATECH CEMENTS(Aditya Birla Group) 13
CONSTRUCTION
Scraping of the existing Bitumen Road to get key
ULTRATECH CEMENTS(Aditya Birla Group) 14
Cleaning of the scraping grit
ULTRATECH CEMENTS(Aditya Birla Group) 15
Aligning of rails for paver movement
ULTRATECH CEMENTS(Aditya Birla Group) 16
Receiving of first pour of concrete
ULTRATECH CEMENTS(Aditya Birla Group) 17
Paver Machine in operation
ULTRATECH CEMENTS(Aditya Birla Group) 18
Bull float operation
ULTRATECH CEMENTS(Aditya Birla Group) 19
Surface Texturing being done
ULTRATECH CEMENTS(Aditya Birla Group) 20Quality check – controlled slump most essential
Day
Night
ULTRATECH CEMENTS(Aditya Birla Group) 21
Spraying of Curing Compound
ULTRATECH CEMENTS(Aditya Birla Group) 22
Covering Fresh Concrete with plastic Sheets to prevent moisture loss and wind
ULTRATECH CEMENTS(Aditya Birla Group) 23
Groove cutting in progress
ULTRATECH CEMENTS(Aditya Birla Group) 24
Finished surface
ULTRATECH CEMENTS(Aditya Birla Group) 25
CONCRETE MIX DESIGNIS:10262-2009
IS:456-2000 IRC:15-2002IRC:44-1976
ULTRATECH CEMENTS(Aditya Birla Group) 26
STEPS IN DESIGN1. All the needed information for the project are
collected2. Target average flexural and compressive
strength is estimated on the basis of minimum specified strength.
3. Water-cement ratio is determined.4. Gradations of coarse aggregate, fine aggregate
to give required combined aggregate grading.5. Required workability is chosen 6. Proportions of all ingredients of mix are found
ULTRATECH CEMENTS(Aditya Birla Group) 27
Goal To achieve minimum of M35 strength on
7th day.
Flexural strength of 4 Mpa as recommended by IRC.
ULTRATECH CEMENTS(Aditya Birla Group) 28
1. PSC MIX PROPORTIONCement = 410 kg
Coarse aggregate 20 mm = 640 kg
12.5 mm = 523 kg
Manufactured sand = 775 Kg
Water = 139.50 Kg
Admixture(dosage @ 0.5% by weight of cement) = 1.863 litres
Total density = 2487.5 kg/m3
ULTRATECH CEMENTS(Aditya Birla Group) 29
2. PPC MIX PROPORTIONCement = 410 kg
Coarse aggregate 20 mm = 640 kg
12.5 mm = 523 kg
Manufactured sand = 775 Kg
Water = 139.50 Kg
Admixture(dosage @ 0.4% by weight of cement) = 1.64 litres
Total density = 2487.5 kg/m3
(NOTE: The quantities above are for 1 m3 of concrete)
ULTRATECH CEMENTS(Aditya Birla Group) 30
TESTING At CIVIL-AID TECHNOCLININC PVT LTD
(A Bureau Veritas Group company), Bengaluru
ULTRATECH CEMENTS(Aditya Birla Group) 31
RESULTSSL.
NO
CEMENT
TYPE
NO OF
CUBES
CASTE
D
FOR COMPRESSIVE
STRENGTH
ON/AFTER
AVERAGE
STRENGTH
RECOMMENDED
Mpa
AVERAGE
STRENGTH
OBTAINEDMpa
1 PSC 15 7 Days 35 37.87
15 28 Days >35 >50
2 PPC 15 7 Days 35 39.28
15 28 Days >35 52.09
ULTRATECH CEMENTS(Aditya Birla Group) 32
CONCLUSION The criteria of achieving strength of 35Mpa
on 7th day can be successfully obtained by adopting the above mentioned mix proportions, there by reinforcing the belief that even the “blended” cements can be used for the design of concrete roads.
ULTRATECH CEMENTS(Aditya Birla Group) 33
THANK YOU