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- A simple platform having a stair will be constructed, as an estimator, your boss gave you an assignment to estimate the concrete works needed for the stairs only. The width of the stair is exactly 1 meter. ... 1980 4090 1572 408 720 1636 Using Class "A" mixture, how many cu.m. of sand is needed for the project? Note: The values are not rounded to the nearest 50ths; use the exact value instead. A) 0.825 cu.m. B) 0.875 cu.m. cu.m. D) 0.975 cu.m.21. You have a wellbore that is drilled to 3,298 feet measured depth. Inside it, the customer ran 3,297 feet of 11.75 inch OD, 27 pound/linear foot casing with 11 inch ID. After pumping cement, we will drop a plug and displace to within 80 feet of the bottom of the pipe. How many barrels of displacement fluid do you need? (1bbl =5.6146 cubic feet, 1foot = 12 inches) * 95.0334 3217 80 378.32Write a note on Menard Vacuum Consolidation process.
- Data Cement Production a. Actual operating time : 1019 h b. Cement Production : 93,024 Tons c. Electrical energy consumed (mill, pre-grinders included for whole Mill Circuit : 577 mWH d. Electrical energy consumed (mill motors only, pre-grinders excluded) : 271 mWh Question a.Specific Electric Energy Consumption (mill motors only, pre-grinders excluded) b.Specific Electric Energy Consumption (pre-grinders included) for whole Mill CircuitIllustrate the typical layout of a grouting plant. Also mention the basic items required for a grouting plant along with their functions.a)i. What are the major proble in using pumping for concreting works.ii. Curing is one of the methods used on freshly placed concrete dicramenatebetween ponding and polythene sheets curing.iii. In carrying out compression test for concrete, should test cube or testcylinders be adopted?
- A concrete pump of 100 m3/hr maximum output (efficiency 54 min/hr) is used to place 270 m3 of concrete. The concrete is supplied by 9 m3 truck mixer arriving to the site every 12 min. How many hours the placing is required?Us Standard Sieve No. Sieve Opening (mm) Weight Retained (g) % Retained on Sieve % Passing Sieve 4 4.75 12.7 6.2 93.8 10 2 24.8 12.1 81.7 20 0.85 21.5 10.48 71.24 40 0.425 38.8 18.92 52.33 60 0.25 23.8 11.60 40.73 100 0.15 19.5 9.51 31.23 200 0.074 46.7 22.76 7.463 Minus 200 17.3 8.44 0 Total 205.1 for D10 and D60 calculate the k value utalizing Hazen's approxoimation. c=1007.22 Casing with an ID of 10.05 in. and a strength in tension of 450,000 lbf in the joints and 629,000 lbf in the pipe body is being suspended from the surface while being cemented. If the effective weight of the casing being sup- ported is 240,000 lbf and a safety factor of 1.4 is desired, how much surface pump pressure can be applied safely to displace the cement? The casing burst is rated at 3,130 psi (for zero axial stress). Solve to the nearest correct solution
- Water defined by the following analysis is to be softened by excess lime treatment in a two- stage system: HCO; = 150 mg/L as CaCO; so = 120 mg/L Cl= 71 mg/L CO2 = 4.5 mg/L Ca2+ = 64 mg/L Mg²* = 37 mg/L Na = 29 mg/L The plant is to treats a flowrate of 20,000 m³/day. The practical limits of removal can be assumed to be 30 mg/L of CaCO3 and 10 mg/L of Mg(OH)2 expressed as CaCO3. Assume excess lime of 35 mg/L CaO. Find the following: a) Sketch the meq/L bar graph. b) Calculate the quantity of softening chemicals required in kg/day c) Calculate the sludge quantity produced in kg/day.Problem 1. One sack of class G cement mixed with 44% fresh water, 30% Nacl (sp.gr.2.71) as accelerator and 25% silica flour (sp.gr = 2.65). i. Calculate the density and the yield of cement slurry produced. ii. What is the volume of water in bbls required for mixing 600 sacks.epare a datasheet and calculate the cost of plastering cement (1:5), 20mm thick for 50m². Also compute final total cost 0.5 skilled labor $70/day T3 unskilled labor $20/day Mixing charge of cement mortar $7/m³ 7 Lead in KM S.# Rate at Material Metal Cart Conveyance Charge Sand track source, Toll Charge track track 1 $110 1.2 0.8 $5/KM/2ton 1 $30 1.0 0.9 0.5 $3/KM/m³ $5 0.6 0.7 $1/KM/m² $2/25m² WID 2 3 Cement Sand Paint per Ton m³ m²