B06 Cost Estimating Case Study Essay

B06 Cost Estimating Case Study Essay

Table of Contents

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B06 Cost Estimating Case Study Essay

ONLYDO QUESTION 8

B06 Cost Estimating

Directions: Be sure to make a copy of your answer before submitting it to Ashworth College for grading. Unless otherwise stated, answer in complete sentences, and be sure to use correct English spelling and grammar. Your response should be a minimum of one (1) single spaced page to a maximum of two (2) pages in length.

For the figure provided, answer the following questions. Provide the correct units for each calculation. To obtain full credit, show all steps, state all assumptions (if any), and all the answers must be correct. Work must be neat and legible. A simply stated answer receives no points.

Excavation

1. Enlarge the footprint by 5 feet for accuracy and slope, then determine the volume of topsoil to be removed and stockpiled, if the thickness 9”.
2. If no soil is to be stockpiled, and the swell is 10 percent, how many truck loads will it take to cart away from the site using 7 cy trucks?

Foundation

A cross section of the 24” wide continuous footing is shown. Assume this footing detail applies to all footings throughout the building.

3. Determine the total linear feet of footing required?
4. Calculate the cross-sectional area of the footing?
5. Determine the volume of concrete in cubic yards for the footing. Add 5% for waste and round off.

Slab

6. Given that the slab is 4” thick, calculate the volume of concrete required for the slab (use 8% waste factor).
7. Given WWF was specified for the reinforcing in the slab, determine how many rolls are required? Assumptions: 750 sf per roll and add 20% for lap and waste.
8. Using the following labor and material rates calculate the cost to provide and install the WWF and pour the concrete slab.

Productivity rate for slab = 0.4 labor hours/cy

Productivity rate for WWF = 1 labor hour/roll

Labor rate for slab and WWF = $14.50/hr

Grading Rubric

Please refer to the rubric on the next page for the grading criteria for this assignment.

CATEGORYExemplarySatisfactoryUnsatisfactoryUnacceptable

10 points 8 points 5 points 2 points

Student provides a correct

topsoil volume and clearly

outlines logical calculation

steps.

Student provides a somewhat

correct topsoil volume and

adequately outlines logical

calculation steps.

Student provides a partially

correct topsoil volume and

partially outlines logical

calculation steps.

Student provides an incorrect

topsoil volume with minimal/no

outline of logical calculation

steps.

10 points 8 points 5 points0-2 points

Student provides a correct

truckload determination and

clearly outlines logical

calculation steps.

Student provides a somewhat

correct truckload determination

and adequately outlines logical

calculation steps.

Student provides a partially

correct truckload determination

and partially outlines logical

calculation steps.

Student provides an incorrect

truckload determination and

minimal/no outline of logical

calculation steps.

10 points8 points 5 points0-2 points

Student provides a correct strip

footing determination and

clearly outlines logical

calculation steps.

Student provides a somewhat

correct strip footing

determination and adequately

outlines logical calculation

steps.

Student provides a partially

correct strip footing

determination and partially

outlines logical calculation

steps.

Student provides an incorrect

strip footing determination and

minimal/no outline of logical

calculation steps.

5 points4 points 3 points0-2 points

Student provides a correct CSA

calculation and clearly outlines

logical calculation steps.

Student provides a somewhat

correct CSA calculation and

adequately outlines logical

calculation steps.

Student provides a partially

correct CSA calculation and

adequately outlines logical

calculation steps.

Student provides an incorrect

CSA calculation and minimal/no

outline of logical calculation

steps.

10 points8 points 5 points0-2 points

Student provides a correct

foundation concrete volume

determination and clearly

outlines logical calculation

steps.

Student provides a somewhat

correct foundation concrete

volume determination and

adequately outlines logical

calculation steps.

Student provides a partially

correct foundation concrete

volume determination and

partially outlines logical

calculation steps.

Student provides an incorrect

foundation concrete volume

determination and minimal/no

outline of logical calculation

steps.

10 points8 points 5 points0-2 points

Student provides a correct slab

concrete volume calculation

and clearly outlines logical

calculation steps.

Student provides a somewhat

correct slab concrete volume

calculation and adequately

outlines logical calculation

steps.

Student provides a partially

correct slab concrete volume

calculation and partially

outlines logical calculation

steps.

Student provides an incorrect

slab concrete volume

calculation and minimal/no

outline of logical calculation

steps.

15 points12 points 8 points0-5 points

Student provides a correct

WWF reinforcement

determination and clearly

outlines logical calculation

steps.

Student provides a somewhat

correct WWF reinforcement

determination and adequately

outlines logical calculation

steps.

Student provides a partially

correct WWF reinforcement

determination and partially

outlines logical calculation

steps.

Student provides an incorrect

WWF reinforcement

determination and minimal/no

outline of logical calculation

steps.

15 points12 points 8 points0-5 points

Student provides a correct LCE

calculation and clearly outlines

logical calculation steps.

Student provides a somewhat

correct LCE calculation and

adequately outlines logical

calculation steps.

Student provides a partially

correct LCE calculation and

partially outlines logical

calculation steps.

Student provides an incorrect

LCE calculation and minimal/no

outline of logical calculation

steps.

5 points4 points 3 points2 points

Student does not make any

errors in grammar or spelling,

especially those that distract

the reader from the content.

Student makes 1-2 errors in

grammar or spelling that

distract the reader from the

content.

Student makes 3-4 errors in

grammar or spelling that

distract the reader from the

content.

Student makes more than 4

errors in grammar or spelling

that distract the reader from

the content.

10 points8 points 5 points2 points

The paper is written in proper

format. All sources used for

quotes and facts are credible

and cited correctly. Excellent

organization, including a variety

of thoughtful transitions.

The paper is written in proper

format with only 1-2 errors. All

sources used for quotes and

facts are credible and most are

cited correctly. Adequate

organization includes a variety

of appropriate transitions.

The paper is written in proper

format with only 3-5 errors.

Most sources used for quotes

and facts are credible and cited

correctly. Response is poorly

organized, but may include a

few effective transitions.

The paper is not written in

proper format. Many sources

used for quotes and facts are

less than credible (suspect)

and/or are not cited correctly.

Response is disorganized and

does not include effective

transitions.

Question 4 –

Foundation: Cross-

sectional Area (CSA)

Calculation (5 Points)

Question 7 – Slab: WWF

Reinforcing

Determination

(15 Points)

Question 5 –

Foundation: Concrete

Volume Determination

(10 Points)

Question 6 – Slab:

Concrete Volume

Calculation (10 Points)

Format – APA Format,

Citations, Organization,

Transitions (10 Points)

Question 1 –

Excavation: Topsoil

Volume (10 Points)

Mechanics -Grammar,

Punctuation, Spelling

(5 Points)

Question 2 –

Excavation: Truckload

Determination (10

Points)

Question 8 – Labor Cost

Estimate (LCE)

Calculation (15 Points)

Question 3 –

Foundation: Strip

Footing Requirement

(10 Points)

RUBRIC
Excellent Quality 95-100%	Introduction 45-41 points The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned.		Literature Support 91-84  points The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned.			Methodology 58-53 points Content is well-organized with headings for each slide and bulleted lists to group related material as needed. Use of font, color, graphics, effects, etc. to enhance readability and presentation content is excellent. Length requirements of 10 slides/pages or less is met.
Average Score 50-85%	40-38 points More depth/detail for the background and significance is needed, or the research detail is not clear. No search history information is provided.		83-76  points Review of relevant theoretical literature is evident, but there is little integration of studies into concepts related to problem. Review is partially focused and organized. Supporting and opposing research are included. Summary of information presented is included. Conclusion may not contain a biblical integration.			52-49  points Content is somewhat organized, but no structure is apparent. The use of font, color, graphics, effects, etc. is occasionally detracting to the presentation content. Length requirements may not be met.
Poor Quality 0-45%	37-1 points The background and/or significance are missing. No search history information is provided.		75-1 points Review of relevant theoretical literature is evident, but there is no integration of studies into concepts related to problem. Review is partially focused and organized. Supporting and opposing research are not included in the summary of information presented. Conclusion does not contain a biblical integration.			48-1 points There is no clear or logical organizational structure. No logical sequence is apparent. The use of font, color, graphics, effects etc. is often detracting to the presentation content. Length requirements may not be met
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