Industry Overview
Autoclaved Aerated Concrete (AAC) blocks are lightweight, thermally insulating building materials used in residential, commercial, and industrial construction. Developed in Sweden in 1924, AAC technology is widely used in Europe and has gained increasing acceptance in other countries. AAC blocks are significantly lighter than conventional clay bricks, offering advantages in handling, construction speed, thermal insulation, and building efficiency.
AAC blocks are manufactured using materials such as cement, lime, sand or pulverized fly ash, gypsum, water, and a small quantity of aluminium powder. Chemical reactions generate microscopic gas bubbles that expand the mixture. The resulting material is cut into blocks and cured in an autoclave under high-temperature, high-pressure steam, giving it its characteristic cellular structure.
Key properties of AAC blocks include lightweight construction, fire resistance, acoustic performance, thermal insulation, workability, and resistance to termites and other pests. Their use can reduce structural loads, material wastage, and energy consumption associated with building operation. AAC blocks are suitable for a range of applications, including homes, schools, hotels, commercial buildings, industrial facilities, and partition walls.
Despite these benefits, AAC blocks require careful handling because of their relatively brittle nature. They may be susceptible to cracking during transportation or installation, and appropriate tools and construction practices are necessary for cutting, service installations, and jointing. Their unit cost may also be higher than that of conventional clay bricks. AAC technology nevertheless offers opportunities for sustainable construction through efficient material use, improved building-envelope performance, and the utilization of fly ash as an industrial by-product.
Cost Estimation
| Particulars | Project Details |
|---|---|
| Plant Capacity | 200 Cubic Mtr/Day |
| Land & Building (3 Acre) | Rs. 7.37 Cr |
| Plant & Machinery | Rs. 3.79 Cr |
| Working Capital for 2 Months | Rs. 3.93 Cr |
| Total Capital Investment | Rs. 15.30 Cr |
| Rate of Return | 32% |
| Break Even Point | 50% |
Content Index
- INTRODUCTION
- AERATED CONCRETE BLOCKS
- AUTOCLAVED AERATED CONCRETE
- STACKED BLOCKS OF AAC (WRAPPED IN FOIL)
- RAW MATERIALS
- FLY ASH SAND LIME AERATED BLOCKS
- AUTOCLAVED AERATED CONCRETE BLOCKS
- ADVANTAGES OF AUTOCLAVED AERATED CONCRETE BLOCKS:
- PROPOSAL:
- USES AND APPLICATIONS
- AERATED CONCRETE BLOCKS
- PROPERTIES
- COMPOSITION OF PORTLAND CEMENT
- ORDINARY PORTLAND CEMENT MAY HAVE THE COMPOSITION AS BELOW
- B.I.S. SPECIFICATION
- MARKET SURVEY
- STRUCTURE AND DEVELOPMENT
- AAC BLOCK: AN EMERGING GREEN BUILDING MATERIAL IN INDIA
- SALIENT FEATURES OF AAC BLOCK: LEADING TO INCREASING ACCEPTANCE OF THE PRODUCT
- A QUICK COMPARISON BETWEEN AAC BLOCK AND CLAY BRICK
- FLY ASH: CHANGING STATUS FROM HAZARDOUS INDUSTRIAL WASTE TO USEFUL AND SALEABLE COMMODITY
- DEMAND-SUPPLY SCENARIO OF AAC BLOCKS
- INCREASING COMPETITION RESULTING INTO PRESSURE ON REALIZATIONS
- FINANCIAL PERFORMANCE OF AAC BLOCK MANUFACTURERS
- THE WAY FORWARD
- 1. SUSTAINABLE BRICKS
- AAC BLOCKS HAVE A POTENTIAL MARKET WORTH $5.5 BILLION (RS. 330 BILLION) BY 2030
- AAC VS. CLAY-FIRED BRICKS
- BRICK INDUSTRY IN INDIA
- INVESTMENT BOOST IN INFRASTRUCTURE THROUGH HIGHER PUBLIC FUNDING POSITIVE
- FUTURE OF CONSTRUCTION MARKET IN INDIA
- LATEST MARKET RESEARCH REPORT (2014) BY PWC HIGHLIGHTS:
- GROWTH DRIVERS
- INVESTMENT OPPORTUNITIES IN INDIA
- FDI POLICIES
- FDI POLICY FOR INDUSTRIAL PARKS
- ADVANTAGE INDIA
- 8 TOP REASONS TO INVEST IN INDIA
- 1. SIZE OF INDIA
- 2. ECONOMIC GROWTH
- 3. DIVERSITY
- 4. DEMOGRAPHICS
- 5. HIGH SAVINGS
- 6. DOMESTIC ECONOMY
- 7. A ROBUST FINANCIAL SECTOR
- 8. QUALITY OF INVESTMENT MARKETS
- DETAILED EXPORT DATA OF AUTOCLAVED BLOCK
- INDIA BRICKS AND BLOCKS MARKET TO 2021 – FOCUS ON AAC BLOCK
- SCENARIO OF AAC BLOCK MARKET
- OVERVIEW OF CONSTRUCTION INDUSTRY
- MARKET SHARE OF DIFFERENT WALLING MATERIALS
- COMPOSITION AND CHEMISTRY OF AAC
- THE FINAL HYDRATION PRODUCTS ARE THEN PRINCIPALLY:
- CALCIUM SILICATE HYDRATE COMPOSITIONS IN AAC
- OTHER HYDROTHERMALLY-FORMED MINERALS:
- ENVIRONMENTAL BENEFITS OF AUTOCLAVED AERATED CONCRETE
- ADVANTAGE AND DISADVANTAGE OF AAC BLOCK
- ADVANTAGES
- DISADVANTAGES
- BRICKS AND AAC BLOCKS
- TECHNICAL SPECIFICATION OF AAC BLOCK
- TECHNICAL SPECIFICATIONS & COMPARISON BETWEEN BRICK AND AAC BLOCK
- COMPARISION BETWEEN BRICK AND AAC BLOCK
- FORMULATION OF AAC BLOCKS
- MANUFACTURING PROCESS OF AAC BLOCKS
- DETAILS OF DOSING AND MIXING
- PROCESS FLOW DIAGRAM
- DETAILED MANUFACTURING PROCESS OF AAC BLOCKS
- BRIEF PRODUCTION PROCESS:
- COAL FLY ASH:
- QUICK LIME:
- GYPSUM:
- CEMENT:
- ALUMINUM POWDER PAST:
- SCRAPE AND WASTE SLURRY:
- BATCHING, MIXING, AND CASTING:
- CUTTING AND GROUPING:
- AUTOCLAVED AND FINISHED PRODUCT:
- THE BOTTOM PLATE RETURNING, COMBINING WITH MOULD AND OILING:
- AERATED CONCRETE BLOCK MACHINE
- PRODUCT DESCRIPTION
- 1. INTRODUCE
- 2. AERATED CONCRETE COMMON CONCEPTION
- 3. ADVANTAGES LIGHT WEIGHT
- KEEPING TEMPERATURE
- HAVE MANY KINDS MATERIAL, HAVE LOWEST WASTE
- AVAILABLE ABOVE MACHINE AT:
- PLANT LAYOUT
- PRESENT MANUFACTURERS/SUPPLIERS OF AAC BLOCKS
- SUPPLIERS OF PLANT AND MACHINERY
- COMPLETE PLANT AND EQUIPMENTS SUPPLIERS FOR AERATED CONCRETE BLOCKS (FOREIGN)
- SUPPLIERS OF RAW MATERIALS
- FLYASH
- CEMENT
- GYPSUM
- LIME POWDER
- ALUMINUM POWDER
- COMPLETE PLANT AND MACHINERY SUPPLIERS AND TECHNICAL ADVISORS FOR AAC BLOCKS
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)
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