RIBNA has estimated 200 m³ concrete and 800 dowels to complete a concrete paving project. 60 work hours is estimated to make dowel baskets and anchor them to the base course. A slipform paver, in 40 work hours, spreads, consolidates, and finishes the concrete slab. On a study date, 600 dowels in 45 work hours and 120 m³ concrete in 30 work hours are used. In the above scenario, the SPI for the project is: 0.85 O unknown. more information is required. O 1.15 O the same as its CPI

RIBNA has estimated 200 m³ concrete and 800 dowels to complete a concrete paving project. 60 work hours is estimated to make dowel baskets and anchor them to the base course. A slipform paver, in 40 work hours, spreads, consolidates, and finishes the concrete slab. On a study date, 600 dowels in 45 work hours and 120 m³ concrete in 30 work hours are used. In the above scenario, the SPI for the project is: 0.85 O unknown. more information is required. O 1.15 O the same as its CPI

Fundamentals Of Construction Estimating

4th Edition

ISBN:9781337399395

Author:Pratt, David J.

Publisher:Pratt, David J.

Chapter11: Pricing Concrete Work

Section: Chapter Questions

Problem 9RQ: Calculate the cost per cubic yard to place concrete using each of the alternatives described. The...

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Concept explainers

Pricing Excavation and Backfill

Backfill, in construction, is the activity of returning the soil and gravel that are removed during building construction or using them again to toughen and support the foundation of the building or any other structural component.

Question

RIBNA has estimated 200 m³ concrete and 800
dowels to complete a concrete paving project. 60
work hours is estimated to make dowel baskets
and anchor them to the base course. A slipform
paver, in 40 work hours, spreads, consolidates,
and finishes the concrete slab. On a study date,
600 dowels in 45 work hours and 120 m³ concrete
in 30 work hours are used.
In the above scenario, the SPI for the project is:
O 0.85
O unknown. more information is required.
O 1.15
O the same as its CPI

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Calculate total cost per cubic yard of concrete, given the following: Concrete materials and batching costs = $70/cy Trucking = $6.00/cy Paving equipment = $340.00/hr - Paving labor = $500.00/hr Paver production = 120 cy/hr Incidentals $4.00/cy Overhead and profit = 20% of direct costs 1.87.0 = O2.106.8 O 3.104.4 4.99.6
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