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Estimating the Cost for the Concrete Pad

Estimating the Cost for the Concrete Pad. Concrete Estimating. Common Uses of Concrete Reinforcing Bar How Much Will the Concrete Cost? Estimating the Cost of a Pad Cost Estimate Cost Estimator. Common Uses of Concrete. Foundations and footings Driveways and sidewalks Floors

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Estimating the Cost for the Concrete Pad

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  1. Estimating the Cost for the Concrete Pad

  2. Concrete Estimating • Common Uses of Concrete • Reinforcing Bar • How Much Will the Concrete Cost? • Estimating the Cost of a Pad • Cost Estimate • Cost Estimator

  3. Common Uses of Concrete • Foundations and footings • Driveways and sidewalks • Floors • Retaining walls • Piers • Columns

  4. Reinforcing Bar Concrete has high compression strength, yet poor tensile strength. Rebar is added to increase the tensile strength.

  5. Reinforcing Bar Rebar is also used to pin one structural element to an adjacent element.

  6. How Much Will the Concrete Cost? Concrete is sold by volume and measured in cubic yards (yd3).

  7. Estimating the Cost of a Pad Pad size = 16 ft x 18 ft floor 4 in. thick • Convert all units to ft 16 ft, 18 ft, .333 ft • Calculate volume (L x W x t) • Convert ft3 to yd3

  8. Estimating the Cost of a Pad Concrete is typically sold in increments of ½ yd3 $98/ yard3 x 4.0 yards3 = $392

  9. Estimating the Cost of the Pad Rebar • Placed every two feet (max.) on a grid • Sold in 10 ft lengths • Must be lapped 6 in. to maintain strength • Maintain a 3 in. edge distance 6 in. lap 3 in. edge dist.

  10. Estimating the Cost of the Pad Rebar 3 in. edge dist. 6 in. lap How many 10 ft pieces of rebar are needed? 38

  11. Estimating the Cost of the Pad Rebar • Each piece of #4 rebar costs $4.78. 38 x $4.78 = $181.64 Other associated costs include material for forms, gravel, and labor.

  12. Cost Estimate • A forecast of the cost of a future project • Prepared at different levels of a project • Conceptual Design • Construction Documents • Bid Phase • Includes • Quantity take-off − Subcontractor quotes • Material costs − Indirect costs • Labor rates and costs − Profit margin • Equipment costs • Completed with cost estimating software

  13. Cost Estimator • Specialize in developing cost information for building projects • Most employed in construction industry • Most have gained experience through working in building construction industry • Employed by • Owner • Project manager • Construction Contractor • Design professional • May be discipline specific (electrical, structural, etc.)

  14. Concrete Estimating • Common Uses of Concrete • Reinforcing Bar • How Much Will the Concrete Cost? • Estimating the Cost of a Pad • Cost Estimate • Cost Estimator

  15. Image Resources Microsoft, Inc. (n.d.). Clip art. Retrieved March 18, 2009, from http://office.microsoft.com/en-us/clipart/default.aspx

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