If 2, 500 bank cu yds. (in-place at natural density), of loamy sand mixed with c

Question

If 2, 500 bank cu yds. (in-place at natural density), of loamy sand mixed with clay has to be exported from the site, how many cubic yards would have to be hauled away by truck? ellipsis Refer to the dirt tables from textbook reading. When a range of values is provided in the table, use the middle value of the range, 1a) If 10 cu yd trucks will be used to haul this material away, how many loads would be required? 1b) If you needed this activity performed in a 10 hour work day, how many trucks would be needed to perform this task (Assume a 5 minute truck-line wait time for fill up: 10 minutes to load up truck with dirt, and a 45 minute round trip on each 10 cu yds, also refueling and break time) 2) If 750 cu yards (in-place), of sand/gravel is needed to import, how much cubic yardage would be required? 2a) If the same 10 cu yd truck is used, how many trucks loads of imported sand and gravel do you need? EXCAVATIONS 3) What is the volume of an excavation where the length of the needed cut is 88.8 ft, the width is 26.7 ft. and the depth is 9 ft? 3a) How many 15 cu yd dump "truck/days" will it take to haul off this load? Ellipsis (Assume a swell of 17% and each truck can take 5 net loads in one work day) CONCRETE/STEEL 4) How is rebar taken off? 4a) In what unit of measure are large quantities ordered? 4b) How does lap affect the rebar quantities? 5) How is wire mesh taken off? 5a) How is it ordered? 6) Why must the estimator consider how the concrete will be transported to the job site? Please do not complete the assignment in the comment field. Instead, please complete all work on a separate file and upload it.

Explanation / Answer

4.)A rebar takeoff requires that you count and measure all rebar in your footings and walls. The more common name for this process is called estimating. Failure to complete a thorough takeoff can result in lost time and money. Even if you have little or no experience, you can complete a rebar takeoff in four to 12 hours, depending on the size and scope of the project.

Step 1

Measure the width and length of your footers, and record the measurements onto a writing pad. Footers 24 inches wide require three sticks of rebar, and 16-inch-wide footers require two. Because rebar is manufactured in lengths of 20 feet, divide the total footer length by 20 to get the total number of sticks of rebar

Step 2

Multiply the total rebar by the number of sticks required for your footer width.

Step 3

Calculate the cross bars (rebar that lies across the 20-foot rebar sticks). Divide the total footer length by 24 inches (cross bar spacing) and multiply that by the footer width (16 or 24 inches).

Step 4

Calculate wall rebar; divide the total length of the wall by 2 feet (rebar spacing) and multiplying that by the wall height

4 a)ordered in TON

4 b)

5)It is taken off by rolling.

5a)the farther it must be hauled, the higher the cost will be.So try it nearer.

6)The estimaator consider how the concrete will be transported because y knowing the manner of transportation he can calculate the required amount for the required strength.Because of the workability of the mix.its req.amount vary.As it may set or hardened without rolling during transportation.And due to this that amount may be wasted.That is why it is always considered during estimation.And also cost of the truck with roller will be high than the truck without roller.

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