Welcomes you
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Welcomes you 1 JSW is a $11 billion group with presence across key - - PowerPoint PPT Presentation
Welcomes you 1 JSW is a $11 billion group with presence across key sectors including recent foray into cement business $11 Billion Indian Conglomerate Paints South Indias Operates Services the Indias leading environment largest
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JSW is a $11 billion group with presence across key sectors including recent foray into cement business
India’s leading integrated steel producer with 18MTPA steel capacity South India’s largest manufacturer
Slag Cement’ with a capacity
Services the entire energy value chain with a total capacity of 4,531MW Operates environment friendly seaports & terminals with capacity of 33MTPA $11 Billion Indian Conglomerate Coming Soon…
Paints
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With your support we have successfully established PSC in South India and garnered ~5% market share in optimal time
2.9 2.4 1.6 2014- 15 2015- 16 2013- 14 5% PSC 63% 32% PPC OPC
India Market Composition JSW Cement Footprint in India JSW PSC Sale Volumes* (Million MT) Other Key Factors
Strong distribution network with 1,800 dealers & 4,500 sub-dealers Sustained PR and presence on OOH, News papers and Magazines Participation in various conclaves, seminars and exhibitions
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*Includes PSC sale volumes in South India – TN, KL, KN, AP, TL, MH
Current Presence Expansion Plan
Additional 10 MTPA by 2018
By 2020 the capacity of PSC grows to 25 MTPA
Nandyal, Vijaynagar & Dolvi 8.6 MTPA West Bengal 2X1.2 MTPA 2017 Orissa 1X1.2 MTPA 2017 Tamilnadu 2X1.2 MTPA 2018 4
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Issued by CII
Low heat, High Alumina, Low Alkali …etc.
Type of cement Requirements OPC 33Gr IS:269-2015 OPC 43Gr IS:269-2015 OPC 53Gr IS:269-2015 PPC IS:1489-2015 PSC IS:455- 2015 Physical Requirements
I.S.T - min F.S.T – max
Le Chat expn (mm) - max Autoclave expn (%) –max
3d 7d 28d
225 30 600 10 0.8 16 22 33 (48 max)
30 600 10 0.8 23 33 43 (58 max)
30 600 10 0.8 27 37 53
30 600 10 0.8 16 22 33 0.15 225 30 600 10 0.8 16 22 33
Great Pyramid - Giza St Peter’s Basilica – Vatican city Qutb Minar - Delhi Colosseum - Rome Leaning Tower of Pisa, Italy
(NCHRP), USA – premature deterioration of concrete bridges built with OPC – lack of durability.
years.
codes mainly to enhance the durability of concrete.
Infrastructure development is undergoing transformation. It has been recognised that the use of OPC alone or using OPC in high percentage in concrete is not only coming in the way of Greener construction (Sustainability) but also leads to many disadvantages in particular with the following:
a. Drying shrinkage b. Excess heat of hydration c. Continued increase in permeability d. Lack of resistance to chemical attacks
Strength Durability Sustainability
1 MT of OPC:
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PSC has an added advantage over OPC as it increases durability against environmental conditions due to slag content
OPC Cement Water
C-S-H gel
Ca(OH)2
Prone to environmenta l attacks
Primary Reaction Slag (GGBS)
C-S-H gel
Secondary Reaction
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PSC has an added advantage over OPC as it increases durability against environmental conditions due to slag content
OPC Cement Water
C-S-H gel
Ca(OH)2
Prone to environmenta l attacks
Primary Reaction Slag (GGBS)
C-S-H gel
Secondary Reaction Double hydration and subsequent CSH leads to a reduction in pores over time 3 days 7 days 28 days Pores CSH gel filling pores
Requirements of Quality of Concrete in different Environmental Conditions (Table 5, IS:456:2000)
SI No. Exposure Plain Concrete Reinforced Concrete Minimum Maximum Minimum Minimum Maximum Minimum Cement Free W -C Grade of Cement Free Water - Grade of Content Ratio Concrete Content Cement Concrete kg/m3 % kg/m3 Ratio (1) (2) (3) (4) (5) (6) (7) (8)
i) Mild 220 0.60
0.55 M20 ii) Moderate 240 0.60 M15 300 0.50 M25 iii) Severe 250 0.50 M20 320 0.45 M30 iv) Very severe 260 0.45 M20 340 0.45 M35 v) Extreme 280 0.40 M25 360 0.40 M40 NOTES
additions such as fly ash or ground granulated blast furnace slag may be taken into account in the concrete. composition with respect to the cement content and water-cement ratio if the suitability is established & as long as the maximum amounts taken into account do not exceed the limit of pozzolana and slag specified in IS 1489 (PartI) & IS 455 respectively
IS 456: 2000 RECOMMENDS THE USE OF BLENDED CEMENT AT DIFFERENT CONDITIONS.
CLASS CONCENTRATION OF SULPHATES AS SO3 TYPE OF CEMENT MINIMUM CEMENT CONTENT Kg/m3 MAXIMUMWAT ER / CEMENT RATIO IN SOIL (TOTALSO3) (WT %) IN GROUND WATER (g/l) (1) (2) (3) (4) (5) (6) 1. < 0.2 < 0.3 OPC,PSC OR PPC 280 0.55 2. 0.2 – 0.5 0.3 – 1.2 OPC,PSC OR PPC SRC OR SSC 330 310 0.50 0.50 3. 0.5 – 1.0 1.2 – 2.5 PSC OR PPC SRC OR SSC 350 330 0.45 0.50 4. 1.0 – 2.0 2.5 – 5.0 SRC , SSC 370 0.45 5. > 2.0 > 5.0 SRC, SSC WITH PROTECTIVE COATING 400 0.40
DURABILITY OF CONCRETE: (Table 4 Requirement for Concrete exposed to sulphate attack )
and aluminates of lime.
blast furnace.
by rapidly chilling
quenching with water or steam and air.
BF Slag Steel Slag
CHEMICAL COMPOSITION RANGE (%)
Microscopic examination reveals the glassy nature of GGBS particles
20 40 60 80 100 3 DAYS 7 DAYS 28 DAYS
42.63 60.26 72.04 66.74 82.27 95.17
Heat of Hyderation ( Cal/ gm)
Temperature Rise in PSC Vs OPC & PPC Concrete
20 25 30 35 40 5000 10000 15000 20000 25000 30000 35000 40000 45000
Age, minute Temperature, Degree C
PSC Concrete OPC Concrete
Temp Rise-PPC vs PSC Concrete
10 20 30 40 50 60 70 1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70
Time in hrs Temp Deg C
Core Temp PPC Core Temp PSC
Source: NCCBM
Chloride Ion Penetrability Limits as per ASTMC 1202 -97 Charges (Coulombs) CL Ion Penetrability > 4000 High 2000 - 4000 Moderate 1000 - 2000 Low 100 - 1000 Very Low < 100 Negligible
GGBS replacement level Average 0% 2220 25% 1034 40% 628 50% 526
Source RMC India Readymix Source: SCA
Portland slag cement/GGBS lead to increase electrical resistivity of concrete and reduce diffusivity of chloride ions from outside. The resistance to corrosion of reinforced steel in concrete is enhanced due to less proportion of chloride ions available in pore solution. Cement Diffusivity 10-9 Cm2/g OPC 44.7 PPC (70:30) 14.7 PSC (45:55) 4.1
The Portland Slag Cement containing active slag in required proportion offer an improved resistance to sulphate attack because of depletion of Ca(OH)2, lower C3A content as well as improved water tightness of concrete.
SULPHATE ATTACK
Cement + WATER CSH + Ca (OH)2
+ SULPHATES - SOIL / WATER
CaSO4 2H2O REACTS WITH C3A OF CEMENT Cal - SULPHO ALUMINATE (ETTRINGITE)
The products of BF Slag are highly regarded as environment friendly materials that can protect the environment by limiting the exploitation of natural resources and reduce the amount of energy consumed in the mining of natural Resources.
TO ACHIEVE SUSTANIBILITY IN CONSTRUCTION
Material Embodied CO2 (Kg./tone) Portland cement, CEM I 930 Addition/s
cement constituent GGBS 52 Fly ash 4 Limestone 32 Minor additional constituent 32 Aggregate 4 Reinforcement 427
GGBS / PSC Concrete Lesser Cracking Increased durability Improved resistance to Acid, Chloride, Sulphate & fire Improves Concrete Properties
Ultimate & Flexural Strength of Concrete
in heat of hydration.
Impermeability.
Cement Particles
Effect
Reaction
PSC / GGBS - APPLICATIONS
Trial 1 Trial 2 Cement - JSW PSC (W01-2014) 12.6 kg CA - 20 mm 20.65 kg CA - 12.5 mm 13.75 kg FA - M sand 22.53 kg free water 5.32 kg (after correction) Corrosion inhibitor - Kunal 60 g Plasticiser - Kunal conchem 0.50% 0.55% Slump - a) Initial Collapse Collapse b) 1 hr Collapse Collapse c) 2 hr 120 mm 170 mm *Comp Strength - a) 7d 37.9 MPa 42.7 MPa
53.8 56.6 Concrete : M40 Cement : PSC Fine agg : Manufactured sand Plasticiser : PC based Design mix: 1:1.79:2.73
w-c ratio : 0.36 Slump after 2 hrs: 150-170 mm
Concrete Mix Design – Kochi Metro Rail Corporation
contractor
IL & SF Cement - JSW PSC (W11-2016) 403 kg CA - 20 mm 559 kg CA - 10 mm 559 kg FA - M sand 742kg free water 145.8 kg (after correction) Plasticiser - Master poly heeo 8632(BASF) 0.6% Slump - a) Initial Collapse b) 1 hr 200mm c) 2 hr 165mm *Comp Strength - a) 7d 37.5 MPa
45.8 MPa Concrete : M35 Cement : PSC Fine agg : Manufactured sand Plasticiser : PC based Design mix: 1:1.84:2.77
w-c ratio : 0.36 Slump after 2 hrs: 150-170 mm
Concrete Mix Design – Bangalore Metro Railway Corporation Ltd.
Cement - JSW PSC 395 kg CA - 20 mm 454 kg CA - 12.5 mm 679 kg FA - R sand 816kg free water 144 L Corrosion inhibitor – EPCO KP 200 2 Kg Plasticiser - 1.78 L *Comp Strength - a) 7d 22.4 MPa
36.5 MPa Concrete : M30 Cement : PSC Fine agg : River / M sand Plasticiser : SWC Chrysoplast delta D785 Design mix: 1:2.06:2.86
w-c ratio : 0.36
Concrete Mix Design – JBF Petrochemicals Mlore (Petron)
Cement - JSW PSC 435 kg CA - 20 mm 709 kg CA - 12.5 mm 469 kg FA - R sand 754 kg free water 154 L Corrosion inhibitor – EPCO KP 200 2.1 Kg Plasticiser - 2.6 L *Comp Strength - a) 7d 29.2 MPa
42.4 MPa Concrete : M35 Cement : PSC Fine agg : River / M sand Plasticiser : SWC Chrysoplast delta D785 Design mix: 1:1.73:2.71
w-c ratio : 0.35
Grade of Concrete M30
Cement - JSW PSC 340 kg CA - 20 mm 709 kg CA - 12.5 mm 469 kg FA - M sand 754 kg free water 152 L Super Plasticiser 2.55 L Slump 65 mm *Comp Strength - a) 7d 27.5 MPa
39.4 MPa
Concrete Mix Design
Source: RMC ReadyMix (India)
Grade of Concrete M40
Cement - JSW PSC 450 kg CA - 20 mm 626 kg CA - 12.5 mm 469 kg FA - M sand 418 kg free water 171 L Plasticiser - CONPLAST P211 (M) 1.8 L Slump 65 mm *Comp Strength - a) 7d 29.5 MPa
49.3 MPa Source: CivilAid)
Mix design with PSC
Mix design with OPC + GGBS
M25 Concrete M35 Concrete
Source: CivilAid
Concrete strength development with different types of cement
Concrete with PSC has continued to show higher strengths beyond 28 days in comparison to those made with OPC and PPC
A Comparison Slag Based Products vs Flyash Based Products
Oxides Cement Clinker (%) PSC (%) GGBS (%) Fly ash (%) Cao 62 45 40 SiO2 22 33 35 55 Al2O3 5 10 14 30 MgO 3 6 8 < 1 Fe2O3 4 1 0.5 6 < 2
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PWD – Karnataka (extract of Schedule of Rates)
For more details, contact: 1800 266 266 1
A Comparison Slag Based Products vs Flyash Based Products
Oxides Cement Clinker (%) PSC (%) GGBS (%) Fly ash (%) Cao 62 45 40 SiO2 22 33 35 55 Al2O3 5 10 14 30 MgO 3 6 8 < 1 Fe2O3 4 1 0.5 6 < 2