Show your calculation in determining the total required storage yard for reinforcing steel bar (A,) in m? given that:- the total quantity of rebar required for the project (Q) = 1,800 tons, project duration () = 120 days, the average stock (t) =7 days, fluctuation factor of usage (k) = 0.80, quantity of rebar can be stored/m? (q.) = 1.40 tons/m, and utilization index for rebar () = 0.75

Show your calculation in determining the total required storage yard for reinforcing steel bar (A,) in m? given that:- the total quantity of rebar required for the project (Q) = 1,800 tons, project duration () = 120 days, the average stock (t) =7 days, fluctuation factor of usage (k) = 0.80, quantity of rebar can be stored/m? (q.) = 1.40 tons/m, and utilization index for rebar () = 0.75

Solid Waste Engineering

3rd Edition

ISBN:9781305635203

Author:Worrell, William A.

Publisher:Worrell, William A.

Chapter5: Separation Processes

Section: Chapter Questions

Problem 5.14P: Two materials, A and B, are to be separated using two unit operations, 1 and 2. The feed has 10...

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A Highway contractor has four locations A, B, C, and D on a road contract to which crushed stone is to be delivered. The stone, which is all of the same quality is to be supplied from two quarries 1 and 2. The table below shows the relative transportation cost per cubic meter of transporting stone from each quarry to each site. Quarry 12 2 A 9 12 45 Location B с D Relative transportation costs ($ per m³) 15 10 8 105 Quantities required at each location (m³) 11 3 135 6 150 Quarry output (m³) 120 255 a) What is the optimal allocation of the crushed stone from each quarry to each location? b) What is the transportation cost corresponding to the solution obtained in part a?
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The steel grating 0.80 meter. x o.80 meters placed on top of the concrete catch basin is composed of a 10mm square bar spaced at 100mm on centers with an angular steel frame 20mm x 20mm x 6mm along the perimeter. Find the total requirement of the steel bar in kilograms and how much it will cost if 1.0 kilogram of steel amounts to PhP 45/kg. ? NOTE: Use density of steel = 7,860 kg per cubic meter.
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Problem 2: Complete the missing information in the concrete placing labor cost estimating table below. Number 1 2 5 1 Component Foundation Wall to elevation Slab 10 in Beams elevated Beams elevated Member Slab elevation Interior wall Slab elevation Walls Walls Floors elevated Manhole walls Roof Headwall Carpenter foreman Cement mason Laborers Concrete pump Production rate of crew under normal circumstances = 18 m³/hr. The actual production rate can be lower in the different components based on the efficiency factor Total cost 14 12 Quantity (m3) Efficiency factor 44 59 7 14 9 12 57.2 42 8.9 Concrete placing crew 27.3 14 -8 8.5 Rate per hour $45/hr $35/hr $25/hr $55/hr Crew hourly rate ($/hr) 0.89 0.90 Cost/m3 Total 0.75 0.85 0.79 0.78 0.65 0.70 0.85 0.88 0.85 0.80 0.75 0.87 Total labor cost for concrete
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A civil engineer involved in construction requires 6000, 5000, and 8000 m³ of sand, gravel, and coarse gravel, respectively, for building project. There are three pits from which these materials can be obtained. The composition of these pits Сoarse Sand% Fine Gravel% Gravel% Pit 1 32 30 38 Pit 2 25 40 35 Pit 3 35 15 50 How many cubic meters must be hauled from each pit in order to meet the engineer's needs? Use at least 2 from any matrix method.