Questions
Q1: How to calculate the quantity of cement and aggregates for 1 metre cubic concrete for...

Q1: How to calculate the quantity of cement and aggregates for 1 metre cubic concrete for any mix ratio? Handwriting please

Q2: How to Determine Compressive Strength of the Concrete? Handwriting please

In: Civil Engineering

A proposed project will require the immediate investment of P500,000 and is estimated to have year-end...

A proposed project will require the immediate investment of P500,000 and is estimated to have year-end revenues and costs as follows:
Year Revenue (P)   Costs
1 750,000 600,000
2 900,000   770,000
3 1,000,000   750,000
4 950,000   800,000
Is this a good investment? Use the Present Worth Method

In: Civil Engineering

three storey structure having a square footprint of 225 m2 is constructed on a clayey deposit....

three storey structure having a square footprint of 225 m2 is constructed on a clayey deposit. The structure is planned to be supported by square isolated footings having a width of 2m and spaced at 5m center to center. typical borehole indicates that the soil consists of 2m fill layer at the top (g=17KN/m3) followed by a very stiff clay layer 2m thick (gsat=18.5KN/m3) underlain by a normally consolidated soft clay layer of 4.5m thickness (gsat=17KN/m3) followed by a rock layer extending down to the bottom of borehole. The foundations are laid on top of the stiff clay layer. Water table is located at the top of the stiff clay layer. Undisturbed samples were taken from the middle of each clay layer and consolidation tests done on undisturbed samples indicated the following:
 Stiff Clay: Cc=0.15; Cs = 0.02; Pc = 120 kPa; e0=0.9

 Soft Normally Consolidated Clay: Cc=0.38; Cs = 0.06; e0=1.0

a) The isolated foundations are subjected to a stress of 140 kPa. Calculate the consolidation settlement. Consider the very stiff clay as one layer and divide soft clay layer into two equal sub-layers. Calculate settlement under one typical foundation.

b) What would be the maximum additional stress applied on a central foundation from two neighboring foundations (situated at the left and right sides of the central foundation). Is it necessary to consider the additional stresses from neighboring foundations in the settlement calculations?

In: Civil Engineering

1. Which of the following may be unintentional? a) Fraud b) Negligence c) forgery of a...

1. Which of the following may be unintentional?

a) Fraud b) Negligence c) forgery of a signature on a contract d) Misrepresentation

2. Which of the following is not required for a contract to be legally binding?

a) the contract must be voluntary

b)signing of the contract must be notarized by a notary public or a lawyer

c) the terms of the contract must be legal

d) the contract offer must have acceptance

e) some form of payment must be involved

3. A primary advantage of a corporation over a sole proprietorship or a partnership?

a) it is much simpler to start a corporation than to start a partnership or a sole proprietorship

b) corporations are more profitable than sole proprietorship and partnerships

c) in a corporation, the owners have limited liability

d) taxes are typically lower for corporations

4. A prime is another term for:

a) a lead engineer b) a general contractor c) an agent d) an owner

In: Civil Engineering

write a Case study about Metro Dubai. Include the sustainable / eco-friendly transportation system. Report must...

write a Case study about Metro Dubai.

Include the sustainable / eco-friendly transportation system.

Report must include:

Abstract, Introduction and objectives.

History and project details.

Impact of the sustainable / Eco-friendly approach ( advantages and disadvantages )

Conclusion and your opinion on such practice.

In: Civil Engineering

Hi Please answer with short description. please type the answers. Wind Power Provide a short description...

Hi

Please answer with short description. please type the answers.

Wind Power

  1. Provide a short description of the following terms:
    1. Hadley Circulation
    2. Catabatic Winds
    3. Geostropic Winds
    4. Boundry Layer

In: Civil Engineering

Hi please answer these questions with short description. please type the answers. thanks. wind power Provide...

Hi

please answer these questions with short description. please type the answers. thanks.

wind power

  1. Provide a short description of the following terms:
    1. Roughness
    2. Turbulence
    3. Rossby Circulation.

In: Civil Engineering

Write a long introduction of the lab "flow nets and seepage models"

Write a long introduction of the lab "flow nets and seepage models"

In: Civil Engineering

Part 1: A five-sided closed field traverse has the following distances in feet: AB = 647.25;...

Part 1: A five-sided closed field traverse has the following distances in feet: AB = 647.25; BC = 203.03; CD = 720.35; and DE = 610.24; and EA = 285.13. The interior angles are as follows (measured as angles to the right): A = 100º 45' 37"; B = 231º 23' 43"; C = 17º 12' 59"; D = 89º 03' 28"; and E = 101º 34' 24". The bearing of AB is S 53º 04' 43" E. Determine the bearings of each side

In: Civil Engineering

What is the difference between coagulation and precipitation?

What is the difference between coagulation and precipitation?

In: Civil Engineering

For designing a composite beam with two symetrically placed point loads, a uniform distributed load, and...

For designing a composite beam with two symetrically placed point loads, a uniform distributed load, and a simple span, how do you calculate the number of required shear stud connectors and their location?

In: Civil Engineering

The following suggestions are proposed by a technician to minimize the energy loss of liquid moving...

The following suggestions are proposed by a technician to minimize the energy loss of liquid moving in a pipeline. You as a civil engineer check that they are correct or not. Suggestion 1 – Increase the diameter of the pipe

Suggestion 2 – Increase the number of bends of the pipe

Suggestion 3 – Reduce the length of the pipe

Suggestion 4 – Increase the velocity of the liquid of the pipe

Suggestion 5 – Allow the corrosion inside the pipe

Suggestion 6 – fully open the valves of the pipe

In: Civil Engineering

An air compressor is operating at a steady state. The air enters at with a volumetric...

An air compressor is operating at a steady state. The air enters at with a volumetric flow rate 1.2 m^3/s at 170 kPa and 22 degrees celsius with negligible velocity and leaves at 1500 kPa with velocity of 200 m/s. The power to the compressor is 60 kW and the compressor is cooled at a rate of 15 kJ/kg. Determine the exit area.

In: Civil Engineering

A water harvesting pond is to be constructed by constructing an embankment across a narrow valley....

A water harvesting pond is to be constructed by constructing an embankment across a narrow valley.

The top width of the embankment is kept at 3.6 m. using the information in the Table Q8, and taking the upstream and downstream side slopes as 3:1 and 2:1 respectively, a settlement allowance of 12.5%:

  1. .       Fill up the table and estimate the earth volume required to construct the dam. Show sample calculations only.
  2. .     Sketch the plan view, longitudinal section and centre cross section of the dam.

Table Q8

Station (m)

Ground elev.

(m)

Fill height

(m)

Distance (m)

End areas

(m2)

Volume (m3)

0+50

35.0

0

+68

32.7

2.3

1+00

25.9

9.1

+37

21.5

13.5

+53

20.0

15.0

+75

19.8

15.2

2+00

19.5

15.5

+19

20.3

14.7

+32

20.3

14.7

+36

18.8

16.2

+40

18.2

16.8

+43

18.5

16.5

+46

19.6

15.4

+59

19.8

15.2

3+00

20.8

14.2

+35

27.7

7.3

+60

31.6

3.4

3+96

35.0

0

In: Civil Engineering

a. ) Rainwater harvesting is regarded as the simplest way of improving food security and accelerating...

a. ) Rainwater harvesting is regarded as the simplest way of improving food security and accelerating environmental rehabilitation in the arid and semi-arid lands. Describe and discuss various technologies for rainwater harvesting for agriculture and domestic/livestock water supply             

  1. ) What are the steps and data requirements in the design of an earth dam as a water harvesting and storage structure in an arid and semi-arid area?                                                                         

In: Civil Engineering