Industry Overview
Cement is a hydraulic binding material used extensively in civil engineering and construction. Portland cement develops strength primarily through hydration of its di- and tri-calcium silicates. Its manufacture involves the controlled combination of calcium, silicon, aluminum, iron and other constituents, followed by heating, clinker formation, cooling and grinding.
Clinker is the nodular intermediate produced in the kiln by heating limestone, clay and other raw materials at approximately 1400°C-1500°C. It is subsequently cooled and ground with gypsum and, where applicable, limestone to produce cement. Because clinker can be stored for extended periods under dry conditions, it is also traded internationally.
Cement production depends strongly on the quality, availability and location of limestone, clay and iron-bearing raw materials. Factors such as mineral composition, moisture, grindability, burnability, homogeneity and transport distance influence production costs. Alternative raw materials and industrial by-products can reduce dependence on natural resources and extend the useful life of mineral deposits.
The project report focuses on mudstone as an alternative raw material for cement production. The study area contains mudstone with an average thickness of around 60?m and an estimated reserve of approximately 11.987.760?tonnes. Production from the hard clay mineralization can involve open quarrying, drilling and blasting, followed by staged size reduction. The report also covers clinker chemistry, kiln technologies, fuels, combustion, cement properties, manufacturing processes, market conditions, plant equipment and project economics.
Cost Estimation
| Cost / Project Parameter | Value |
|---|---|
| Plant Capacity | 1000 MT/Day |
| Land & Building (25000 sq.mt.) | Rs. 81.00 Cr |
| Plant & Machinery | Rs. 17.32 Cr |
| Working Capital for 2 Months | Rs. 19.97 Cr |
| Total Capital Investment | Rs. 120.58 Cr |
| Rate of Return | 35% |
| Break Even Point | 37% |
Content Index
- INTRODUCTION
- TYPES OF CEMENTS:
- PORTLAND CEMENT:
- AN APPROXIMATE ANALYSIS FOR RAW MIX ON IGNITED BASIS, OR FOR CLINKER, IS:
- MATERIALS, AS MINED, THEREFORE, ARE TYPICALLY PROPORTIONED:
- A TYPICAL ANALYSIS OF CLINKER IS GIVEN IN THE TABLE BELOW:
- CLINKER COMPOSITION
- COMPOSITION OF CLINKER
- THE COMPOSITION OF CLINKER IS EXAMINED BY TWO SEPARATE APPROACHES:
- THE FOUR MAIN COMPONENTS OF CLINKER ARE:
- OTHER SUBSTANCES MAY BE PRESENT IN SMALL AMOUNTS:
- THE CHEMICAL ANALYSIS OF CLINKER IS USUALLY GIVEN IN OXIDE FORM, AS FOLLOWS (IN OXIDE WEIGHT %):
- THERMOCHEMISTRY OF CLINKER
- TYPES OF CLINKER
- SULFATE RESISTANT CLINKER
- LOW HEAT CLINKER
- WHITE CLINKER
- LOW-ALKALI CLINKER
- BELITE CALCIUMSULFOALUMINATE TERNESITE (BCT)
- ADVANTAGE OF CEMENT PLANT USING CLINKER
- GLOBAL PRODUCTION AND ENVIRONMENTAL IMPACTS
- FIGURE: GLOBAL CEMENT PRODUCTION
- TABLE: SUMMARY OF GASES EMISSION DURING CEMENT MANUFACTURINGPROCESSES EXPRESSED IN G/KG * CEMENT AND G/KG ** CLINKER
- TABLE: SPECIFIC THERMAL ENERGY CONSUMPTION IN A CLINKER MANUFACTURING PROCESS
- PROPERTIES
- PHYSICAL PROPERTIES
- THE PHYSICAL PROPERTIES OF CEMENT
- SETTING TIME
- TESTS:
- CONSISTENCY
- SOUNDNESS
- TEST FOR SOUNDNESS
- FINENESS
- TEST FOR FINENESS
- STRENGTH
- DURATION OF TESTING
- TYPICALLY, DURATIONS OF TESTING ARE:
- COMPRESSIVE STRENGTH
- USES AND APPLICATIONS
- B.I.S. SPECIFICATION
- PROCESS FLOW CHART
- MANUFACTURING PROCESS
- EXTRACTION AND PREPARATION OF RAW MATERIALS
- HOMOGENIZATION
- PRE-HEATING
- KILN PHASE
- COOLING AND STORING
- CEMENT CLINKER GRINDING
- FLOW CHART OF BALL MILL FOR CEMENT CLINKER GRINDING:
- PHYSICAL CONTROL AND COMPOSITION OF RAWMIX
- BURNABILITY OF RAW MIX
- CLINKERISATION
- INFLUENCE OF THE RAW MIX ON CLINKER FORMATION AND BURNABILITY
- TYPES OF KILN
- TYPES OF KILNS - WET, DRY & SEMI-DRY
- WET KILN
- DRY KILN
- LONG DRY KILN
- SP KILN
- ILC-E KILN
- ILC KILN
- SLC KILN
- SLC-S KILN
- SLC-I KILN
- ASH ABSORPTION
- VOLATILE MATTER
- CIRCULATION OF VOLATILE IN SIMPLE KILN SYSTEM
- MELTING AND BOILING POINTS OF ALKALI SALTS
- TO ENSURE TROUBLE FREE OPERATION OF A PREHEATER KILN THE FOLLOWING LIMITS APPLY:
- MAIN FEATURES DURING BURNING
- CHEMICAL CONTROL DURING OPERATION OF THE KILN SYSTEM IS DIVIDED INTO THE FOLLOWING:
- FUEL
- TYPES OF FUEL
- COAL
- TYPICAL PETROLEUM COKES
- PROXIMATE ANALYSIS OF COAL:
- ULTIMATE ANALYSIS OF COAL:
- CHEMICAL ANALYSIS:
- HEAT VALUE:
- FUEL OIL
- TYPICAL ANALYSIS FOR OIL IS:
- GAS
- WASTE FUELS
- COMBUSTION
- COAL & OIL
- FINENESS OF COAL
- DRYING OF COAL
- ASH CONTENT
- GAS CONTENT
- MINOR COMPONENTS
- REQUIREMENT FOR AIR
- THE MINIMUM AMOUNT OF OXYGEN REQUIRED FOR COMBUSTION, OMIN, CAN BE CALCULATEDBY:
- THEREFORE THE REQUIRED AMOUNT OF AIR, LMIN, IS:
- THE TOTAL VOLUME OF THE COMBUSTION GAS IS:
- PROCESS GAS
- MARKET OVERVIEW OF CEMENT IN INDIA
- MARKET OVERVIEW
- EXPORT AND IMPORT OF CEMENT
- INSTALLED CAPACITY & KEY MARKETS IN EACH OF THE GEOGRAPHICREGIONS
- RECENT STRATEGIES
- SUCCESSFUL USE OF ALTERNATE FUELS IN CEMENT PRODUCTION
- GROWTH DRIVERS AND OPPORTUNITIES
- GOVERNMENT BUDGET ALLOCATION AND SCHEMES
- INVESTMENT SCENARIO
- MARKET POSITION
- MARKET SIZE
- INVESTMENTS
- GOVERNMENT INITIATIVES
- INDIAN CEMENT INDUSTRY ANALYSIS
- GEOGRAPHICAL DISTRIBUTION OF CEMENT INDUSTRY IN INDIA
- REGIONWISE CEMENT PRODUCTION IN INDIA
- CEMENT PRODUCTION CAPACITY OF INDIA BETWEEN FY 2018 AND FY 2021(IN MILLION METRIC TONS)
- NORTHERN REGION
- EASTERN REGION
- SOUTHERN REGION
- WESTERN REGION
- CENTRAL REGION
- CONSUMPTION VOLUME OF CEMENT IN INDIA (IN MILLION METRIC TONS)
- TOP KEY MANUFACTURERS IN WORLDWIDE CEMENT CLINKER MARKET ARE:
- ABOUT CEMENT CLINKER MARKET:
- CEMENT CLINKER MARKET SEGMENTATION ANALYSIS:
- CEMENT CLINKER MARKET SEGMENTS BY TYPES:
- CEMENT CLINKER MARKET SEGMENTS BY APPLICATION:
- GEOGRAPHICAL SEGMENTATION:
- COMPETITIVE LANDSCAPE AND CEMENT CLINKER MARKET SHARE ANALYSIS
- EXPORT AND IMPORT OF CEMENT
- PLANT LAYOUT
- SUPPLIERS OF CEMENTS
- SUPPLIERS OF RAW MATERIALS
- SUPPLIERS OF CLINKER
- SUPPLIER OF CALCIUM ALUMINO FERRITE
- SUPPLIER OF FREE LIME
- CHINA SUPPLIERS OF CLINKER GRINDING PLANT
- SUPPLIERS OF PLANT AND MACHINERY
- SUPPLIERS OF CLINKER GRINDING PLANT
- SUPPLIERS OF CEMENT BAG PACKING MACHINE
- SUPPLIERS OF CEMENT TESTING EQUIPMENT
- SUPPLIERS OF DG SETS
- SUPPLIERS OF POWER TRANSFORMERS
- SUPPLIERS OF COOLING TOWER
- SUPPLIERS OF ETP PLANTS
- SUPPLIERS OF MEASURING AND TESTING INSTRUMENTS
- SUPPLIERS OF AIR POLLUTION CONTROL EQUIPMENTS
- SUPPLIERS OF AIR CONDITIONING EQUIPMENTS
- SUPPLIERS OF AIR COMPRESSORS
- SUPPLIERS OF ASSEMBLY LINE
- SUPPLIERS OF EOT CRANE
- SUPPLIERS OF ELECTRICAL PANEL
- SUPPLIERS OF ELECTRIC MOTOR
- SUPPLIERS OF AIR POLLUTION CONTROL EQUIPMENTS
- SUPPLIERS OF AIR CONDITIONING EQUIPMENTS
- SUPPLIERS OF AIR COMPRESSORS
- SUPPLIERS OF MATERIAL HANDLING EQUIPMENTS
- SUPPLIERS OF FIRE FIGHTING EQUIPMENTS
- SUPPLIERS OF SHOT BLASTING MACHINE
- SUPPLIERS OF JIGS AND FIXTURE
- SUPPLIERS OF SUBMERSIBLE WATER PUMP
Appendix
- APPENDIX – A:
- 01. PLANT ECONOMICS
- 02. LAND & BUILDING
- 03. PLANT AND MACHINERY
- 04. OTHER FIXED ASSESTS
- 05. FIXED CAPITAL
- 06. RAW MATERIAL
- 07. SALARY AND WAGES
- 08. UTILITIES AND OVERHEADS
- 09. TOTAL WORKING CAPITAL
- 10. TOTAL CAPITAL INVESTMENT
- 11. COST OF PRODUCTION
- 12. TURN OVER/ANNUM
- 13. BREAK EVEN POINT
- 14. RESOURCES FOR FINANCE
- 15. INSTALMENT PAYABLE IN 5 YEARS
- 16. DEPRECIATION CHART FOR 5 YEARS
- 17. PROFIT ANALYSIS FOR 5 YEARS
- 18. PROJECTED BALANCE SHEET FOR (5 YEARS)
Frequently Asked Questions
Clinker is the principal intermediate material used to manufacture Portland cement. It is formed when a carefully proportioned raw mix containing limestone, clay and other corrective materials is heated in a cement kiln. During this high-temperature process, the constituents react to form clinker minerals that provide the foundation for cement strength. After cooling, clinker is finely ground with gypsum and, where applicable, other permitted materials. Clinker can also be stored in dry conditions for extended periods and traded between cement-producing regions.
Portland cement clinker is primarily manufactured from limestone, clay and iron-bearing corrective materials. Depending on the required chemical composition and the availability of local resources, materials such as shale, marl, silica-bearing materials, blast furnace slag or fly ash may also be considered. The raw materials must provide the required calcium, silicon, aluminum and iron constituents. Their chemical composition, moisture, grindability, burnability, homogeneity and transportation distance are important factors in determining process performance and production economics.
Portland cement is manufactured by cooling clinker and grinding it with gypsum and, where applicable, limestone or other cement constituents. The overall process begins with quarrying and crushing raw materials, followed by grinding, proportioning and homogenization. The prepared raw mix is then heated and burned in a kiln to form clinker. After cooling, the clinker is stored and transferred to the cement grinding section, where controlled grinding produces the finished cement. Laboratory testing is used throughout the process to maintain chemical and physical quality.
Raw mix quality is critical because the proportions and chemical characteristics of the feed directly influence clinker formation, burnability and final cement performance. Proper control helps maintain the required balance of the major clinker-forming oxides and supports stable kiln operation. The report notes that excess free lime can cause undesirable effects such as volume expansion, increased setting time or reduced strength. Chemical and physical testing, together with online process-control systems, can therefore be used to monitor raw materials, kiln operation and clinker quality.
The main stages are raw-material extraction and preparation, crushing, grinding and homogenization, preheating, kiln burning, clinker cooling and clinker storage. Quarry materials are reduced to suitable sizes and combined according to the required raw mix chemistry. The prepared material passes through the preheating and kiln system, where high temperatures drive off volatile constituents and promote clinker mineral formation. Hot clinker is then cooled, with recovered heat returned to the process to improve fuel efficiency. Finally, clinker is ground with gypsum to produce cement.
Alternative raw materials can be used in cement production when their composition and process characteristics are suitable. The report identifies materials and industrial by-products such as sludge, gypsum waste, casting sand, iron dust, fly ash, iron slag and excavation-related materials as potential alternatives. These materials can partially replace conventional mineral resources when properly evaluated and proportioned. Their use may help reduce pressure on natural resources and extend the useful life of existing mineral deposits, while maintaining the chemical requirements needed for consistent raw mix and clinker production.
Cement manufacturing costs are influenced by raw-material quality and availability, quarry conditions, transportation distance, energy consumption, fuel requirements, equipment performance and process efficiency. The report specifically highlights the chemical properties of ore beds, their proximity to the plant, removability, fragility, grindability, burnability, moisture content and homogeneity. Because cement production is capital intensive, the availability of suitable reserves is also important. Alternative raw materials and industrial by-products can support resource efficiency and may influence the overall raw-material cost structure.
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