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CONCRETE ROADS FOR LOW TRAFFIC VOLUMES

CONCRETE ROADS FOR LOW TRAFFIC VOLUMES. Brian Walker BCP Engineers. Advantages Of Concrete Roads. Ideal for emerging contractors Low capital costs on plant Can be laid on very steep grades Little or no layerworks required Low maintenance costs. Ideal for emerging contractors.

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CONCRETE ROADS FOR LOW TRAFFIC VOLUMES

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  1. CONCRETE ROADS FOR LOW TRAFFIC VOLUMES Brian Walker BCP Engineers

  2. Advantages Of Concrete Roads • Ideal for emerging contractors • Low capital costs on plant • Can be laid on very steep grades • Little or no layerworks required • Low maintenance costs

  3. Ideal for emerging contractors

  4. Low Capital Costs on Plant

  5. Can be laid on very steep grades - - greater than 25%

  6. Little or No Layerworks

  7. Low maintenance costs

  8. Some Problems With Concrete Roads • Incorrect aspect ratios • Irregular shaped panels • Settlement of fills • Late saw cutting of joints • Plastic shrinkage cracks

  9. Incorrect aspect ratio of panel- Must be less than 1.2

  10. Irregular shaped panels

  11. Settlement of Fills Late Saw Cutting of Joints

  12. Plastic shrinkage cracking

  13. Other Types Of Concrete Roads • Rollcrete • Interlocking concrete blocks

  14. Rollcrete

  15. Interlocking Concrete Blocks

  16. Some Concrete Road Projects

  17. Wiggins Umkhumbane

  18. Brooks Farm

  19. Cato Manor

  20. Westrich

  21. Cost Comparisons Asphalt/concrete

  22. Summary • Lower maintenance costs • Helping emerging contractors • Low capital cost of plant • Ideal for steep grades • Can reduce the cost of drainage • Reduced requirement for scarce layerwork material

  23. How Not To Build A Road • Inappropriate surfacing • Combined withno maintenance

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