A pipe line 6000 m long is to convey a sewage having some corrosive effect. Bids have been received for reinforced concrete, cast iron and steel. Because of the varying hydraulic qualities of the inside surfaces the reinforced concrete was to be 39 inches in diameter, the cast iron pipe 42 inches in diameter and steel 45 inches in diameter. The assumed length of life of the materials are 100,75 and 50 years for cast iron, concrete and steel respectively. Annual maintenance costs are assumed as P 600 for cast iron, P 900 for concrete and P 3,600 for steel. The bids are P 790,000 for reinforced concrete and P 580,000 for steel. If interest rate is 5%, which of the bid is favourable?

Q: Problem 9: Using the charts of hydraulic conductivity and compressibility from Freeze and Cherry…

A: Following table is given, which is required to be filled by using the charts of hydraulic…

Q: A pipeline was constructed of a pipe with inside diameter 101 mm and outside diameter 114 mm. On…

A: Given data- Inside diameter (Di)= 101 mm Outside diameter (Do)= 114 mm The wall thickness had been…

Q: 9.18 How can the vertical drains reduce consolidation time?

A: 9.18 Consolidation is the process by which the volume of the soil decreases due to expulsion of pore…

Q: A sewage sludge is to be transported a distance of 3 mi through a 12in ID pipeline at a rate of 2000…

A: Given data : Distance = 3 miles Internal diameter= 12 inch Rate = 2000 GPM Yield stress= 35 dyne/cm2…

Q: Determine the depth y2 of water after the jump. Express your answer to three significant figures and…

A: According to given data Discharge = 18 m3/sWidth = 2m given

Q: Theory of structure Drow S.F.d A.F.D B.M.D

A: Data given Find : SFD, BMD, AFD

Q: A horizontal pipe of diameter 200mm is carrying Ethanol with density 785.1 kg/m3 at 25°C through a…

A:

Q: Q5: We have 2 tons of cement to make 5m3 in a mixing ratio of 1: 3: 4: 0.5. Calculate the amount of…

A:

Q: A city needs to transport 1,800 m3/day of water at 4 C from a reservoir to a holding tank for a…

A: Given: Discharge, Q=1800 m3/day Length, L=8 km=8000 m Slope=1:500

Q: Water runs in a concrete pipeline with 1 m internal diameter and 8 cm thickness under 4 atmosphere…

A: Solution: Given data: 1 atm pressure=1000 cm2/cm3 Thickness=8cm Permeability coefficient=10-7cm/s

Q: 11 er For sieves with openings smaller than 4.75 mm (No. 4), the quantity retained on any sieve at…

A:

Q: (4) Cantilever beam AB supports a point load, P, at the free end. Here is a visualization of the…

A: Given data in question  Load P Span L To find out  Deflection at free end using Integration method

Q: Describe a South African example on the re-use of sludge from pit latrines

A: There is no more cost-effective form of sludge disposal than dumping this in the soil, particularly…

Q: HURREVAC is the model run by NHC to estimate storm surge potential. True False

A: HURREVAC is a hurricane decision support tool developed by the National Hurricane Program to help…

Q: Ex./A (20S) construction mixer will be used to mix concrete for several culverts on a high way…

A: Solution; Given Data; Mixing ratio=1:2:4 Let the quality of; Cement= x kg, Sand=2x kg, Gravel=4x kg…

Q: A reciprocating pump has a stroke of 30 cm, speed of 100 rpm, and a piston of 22-5 cm diameter. It…

A: Give data:   Stroke length = 30 cm Speed = 100 rpm piston diameter = 22.5 cm discharge, Qac=18.9…

Q: A wooden cylinder having a specific gravity of 0.6 has a concrete cylinder of the same diameter and…

A:

Q: 3) Suppose that a ready-mix concrete plant stores its aggregates in three different prismatic…

A: For cement: Calculate the total volume: Calculating total weight: Volume as per design mix…

Q: What are the major problems in using pumping for concreting works?

A: Here, the question tells about the major problems in using pumping for concreting works.

Q: Kinetic energy correction factor: Define it and explain how to get it. What are its typical values?

A: It is asked to define Kinetic energy correction factor and explain how to get it, What are its…

Q: Calculate the maximum. uniform service live load (in kN/m) that can be applied to the beam before…

A: Area of section = b x h = 0.329 x 0.539 Let service load be ws.

Q: efficiency of what will completing

A: Given: Volume=1080 cum Capacity=120 cum/hr Efficiency=75 %   To find: Approximate time for…

Q: Consider an industrial hydraulic system.  State its purpose and identify all of its components.

A: Industrial hydraulic systems include pumping systems whose purpose is to lift the fluid or liquid…

Q: Q4: We have a mixing ratio of 1:2:4:0.5 what does it mean. Calculate their quantities in m3? The…

A:

Q: A concrete pump of 100 m3/hr maximum output (efficiency 54 min/hr) is used to place 270 m3 of…

A:

Q: Three pipes of different lengths and diameters connected in series as shown discharges 0.16 m³/s. If…

A:

Q: Almost 90% of river sand is made of mineral إجابتك Give your reason for above answer * إجابتك

A: Almost 90% of river sand is made of Quartz mineral in the form if Silica.

Q: Which of the following is true about the relation of the Energy Grade Line (EGL) to the Hydraulic…

A: Which of the following is true about the relation of the Energy Grade Line (EGL) to the Hydraulic…

Q: A wastewater containing 300 mg/l SS and 250 mg/l BOD passes through a primary sedimentation tank of…

A: Given data- Primary Sedimentation Tank- Surface Area (S.A) = 600 m2 Flow (Q) = 15×103 m3/day Initial…

Q: What harmful effects can occur from over pumping aquifers ?

A: An aquifier is a saturated formation of earth material which not only store water but yields it in…

Q: 1. as illustrated below: atm H P Consider a cylindrical vessel filled with sand and water at…

A: The volumetric rate at different levels in the packed bed is calculated using the given data as per…

Q: A large tank is filled to capacity with 500 gallons of pure water. Brine containing 2 pounds of salt…

A: The concentration of the salt in the inflow is 2lb/gal. Capacity is 500 gal Pumping in and out rate…

Q: Which of the following is a valid potential function for incompressible flow? (Assume A is numerical…

A:

Q: 5. Given the hydraulic press shown in the figure, calculate the force "P" required to raise a load…

A:

Q: A tracer takes 100 days to travel from Well-1 to Well-2 which are 100 m apart. The elevation of…

A: Given- Time t=100 days, Distance d=100 m, Porosity n=15%,

Q: In a 12cm diameter pipe, the major losses are equal to 5.0v²/2g. Find The equivalent length of pipe…

A: Diameter of pipe = 12 cmMajor losses = 5 v2 / 2gf = 0.04 To Find :THe equivalent length of pipe ?

Q: certain liquid flows in a 10 mm diameter smooth pipe that is 20 m long. The total head lost in the…

A: Given Reynolds number Re=1800 <2000 so laminar flow so friction factor…

Q: Answer in 3 Decimal Only (3) A closed empty steel cylindrical tank 2m in diameter 3m high is to be…

A: Given data -Diameter of the tank = 2 m Height of the tank = 3 m Find out -Weight of concrete cube…

Q: An aluminum alloy pipe with an outside diameter of 4.9 in. and a wall thickness of 2/16 in.…

A: Outside diameter = 4.9in wall thickness = 2/16in L = 21ft WA = 12 lb/ft WB = 18 lb/ft   It has been…

Q: In Figure 1.6, the total deadweight loss is represented by the area... Figure 1.6 ice or Cost (per…

A:

Pricing Concrete Work

The concrete work in a project usually holds a high-end cost in terms of cost and value of the work. It becomes an important step in calculating the cost associated with concrete while preparing the project scale. The cost of making concrete depends on the cost of building materials, mixed materials, labor, and machinery. A concrete contractor builds structures from concrete, usually managing all the steps of the process from assembling ingredients to building a holding structure and preparing the mixture. This person or team oversees the delivery and unloading of goods to ensure that they are done properly. Nowadays, most of the concrete in the United States comes from manufacturers working abroad, usually with branches and plants within the provinces. Contributions can range from pre-mixed concrete to basic ingredients, the consumer company then mixes it. Many American-based concrete companies, however, offer concrete products, such as ballads, bricks, countertop, concrete pipe, and building products, as well as concrete construction and installation materials. This article covers both types of suppliers for this set of building materials.