1 / 22

KWALE COUNTY INTERNATIONAL INVESTMENT FORUM

KWALE COUNTY INTERNATIONAL INVESTMENT FORUM (Leisure Lodge Beach Hotel, Diani 24 th to 26 th August, 2014) ‘‘Value Addition on Local Building Materials’’. Eng. Charles Kalomba, Council of Governors Advisor Economic Empowerment. PRESENTATION LAYOUT.

jenny
Download Presentation

KWALE COUNTY INTERNATIONAL INVESTMENT FORUM

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. KWALE COUNTY INTERNATIONAL INVESTMENT FORUM (Leisure Lodge Beach Hotel, Diani 24th to 26th August, 2014) ‘‘Value Addition on Local Building Materials’’. Eng. Charles Kalomba, Council of Governors Advisor Economic Empowerment

  2. PRESENTATION LAYOUT • 1. Why Value Addition on Building Materials • 2. Building & Construction • Functional Areas and • Key Activities • 3. Local Building Materials /Value Addition • (Investment Opportunities) • 5. Q/A

  3. Why value addition to building materials ? • Urgent need for appropriate use • Need to get maximize value from resources • Enormous demand for housing • Over stressing the reserves of traditional building materials • Cement material presently not in a position to cope supply industry demand • The huge amounts of waste materials and thus recycling becoming imperative & mandatory

  4. BUILDING & CONSTRUCTION • Functional Areas and Key Activities •  Site Clearance •  Excavation and timbering •  Timbering and Form works •  Foundations •  Concrete floors •  Reinforced concrete frames •  Roofs •  Brickwork •  Internal fixtures and fittings •  Insulation •  Plumbing and wiring •  Painting and decorating

  5. LOCAL BUILDING MATERIALS Types; Traditional (Natural, used unprocessed) Modern, (Minimal Processing and Value Addition) Manufactured (Complex multi-processing and Value Addition)

  6. TRADITIONAL/INDEGINOUS MATERIAL (Used naturally, un-processed) • Silica/Sand • Gravel • Quarry Stone • Brick • Timber • Slate • Lead • Gypsum • Mud! (rammed earth walls, earth sheltered) • Straw (straw bale houses) • Rushes (for thatched roof) • Makuti A typical local building construction site

  7. MODERN BUILDING MATERIALS(Raw materials have been changed by mechanical/ heat/chemical reactions etc) • Clay Bricks • Concrete • Clay Tiles • Ceramic Tiles • Steel • Lead • Glass • Fibre Glass

  8. Manufactured Building Materials(Materials made from combining other materials and several processes) • Plywood • Chipboard • Plasterboard • Structural insulated panels(SIPs) • Waffles (Ultra-High Density Concrete Panels) • Plastic • Membrane plastic

  9. QUARRY STONE

  10. Stone Quarry Mining Value Addition Processes • Stone Cutting • Marble Polishing • Engraving • Dicing/Sizing • Crushing • Screening/Grading Quarry Waste/Dust

  11. Dicing Machine

  12. Value addition on Mining & quarrying wastes • Large amount of wastes produced in mining & quarrying operations. • Mineral mining wastes are “waste rock” or “mill tailings”. • Manufacturing of bricks ,light weight aggregates & autoclaved concrete blocks.

  13. CONCRETE RECYCLING MACHINE

  14. Value addition of miscellaneous Building material wastes Colliery soil • In coal operations about one half of the material is separated & discarded as colliery soil. • This soil is used to fill in road embankments. • It can also be used to produce light weight concrete. • Concrete Waffle building system makes it uniquely possible to construct attractive, cheaper and lighter slabs in a fraction of the time with just over half the raw materials of solid panels of the same thickness. • Waffles are Ultra High Performance Concrete (UHPC) Precast Panels

  15. 2. Waffle Concrete technology • Concrete Waffle building system makes it uniquely possible to construct attractive, cheaper and lighter slabs in a fraction of the time with just over half the raw materials of solid panels of the same thickness. • Waffles are Ultra High Performance Concrete (UHPC) Precast Panels with advantages as; • Less cement,sand and ballast • Reduces number of steel bars • Less weight on the building • No traditional plastreing of underside • Uses fewer props and timber • Overall cost of construction drastically reduced • Shortens Construction time • The slab is sound proof

  16. 3. Waste glass • Millions of tons of waste glass are generated annually.. • The strength of concrete less than with gravel aggregate. • This is used to make light weight aggregates. 4. Red mud • Red mud is a waste product resulting from the extraction of alumina from bauxite ore. • It is sufficiently plastic molded into balls. • Firing at about 1260 to 1310 c produces a strong dense aggregate with potential to produce red oxide by pulverizing, among other uses.

  17. Red mud

  18. 5. recycled concrete • Smaller pieces of concrete are used as gravel for new construction projects. • Sub base gravels laid down as the lowest layer in a road construction. • Recycled concrete can also be used as the dry aggregate for brand new concrete. • Larger pieces can be used for erosion control as below.

  19. 6. Silica Sand

  20. So which way and what’s the strategy??

More Related