Questions
Use of fly-ash for the production of concrete in hot weather.?

Use of fly-ash for the production of concrete in hot weather.?

In: Civil Engineering

For construction project risk and conflict management: Provide a comparison between Dispute Resolution Techniques and compare...

For construction project risk and conflict management: Provide a comparison between Dispute Resolution Techniques and compare them based on their process time, cost, and legal aspects.

In: Civil Engineering

The room is 5*6 Steel yield stress (fy = 60000 psi) Concrete ultimate compressive strength (f’c...

The room is 5*6
Steel yield stress (fy = 60000 psi)
Concrete ultimate compressive strength (f’c = 4000 psi)
Reinforced concrete density = 150 lb/ft3.
Normal weight concrete is used.

The slab is treated as a one way slab and subjected to a dead load of 120 psf (excluding the self-weight
of the slab) and a live load of 220 psf.
- The slab is supported by beams on the edges.
- There is a column at each corner of the slab supporting the beams.
- Each beam is sitting on a non-load-bearing wall.
Design
- The slab
- The beams
- The columns
Carry out all ACI code checks and sketch your designs.

In: Civil Engineering

Q2. a) Explain the penetration test carried out on bitumen, state its significance and draw the...

Q2. a) Explain the penetration test carried out on bitumen, state its significance and draw the test apparatus.

b). Mention the main factors considered in the choice of construction materials at the design office – is any of them more important than the other?

c). What factors affect the weldability of steel?

d). Consider the iron value chain from material extraction to disposal, at what point according to your assessment is the most energy used? As a design engineer, at what stage do you think is your intervention most important and what role can you play in making iron more sustainable?

In: Civil Engineering

why we don't use density,average speed,and volume to describe the intersection LOS(LEVEL OF SERVICE)

why we don't use density,average speed,and volume to describe the intersection LOS(LEVEL OF SERVICE)

In: Civil Engineering

write an article on application of Fly ash( silica fume) in concrete.

write an article on application of Fly ash( silica fume) in concrete.

In: Civil Engineering

Compare the methods of measuring tensile strength by (a) direct tension; (b) splitting tension; (c) flexure.

Compare the methods of measuring tensile strength by (a) direct tension; (b) splitting tension; (c) flexure.

In: Civil Engineering

What is truly elastic material? Is concrete truly elastic? If not, why? Describe the various stages...

What is truly elastic material? Is concrete truly elastic? If not, why? Describe the various stages of micro cracking when a concrete specimen is loaded to failure (please use sketches to explain the behavior and the micro cracking).

In: Civil Engineering

What is the best system to use for thermal control? When would perimeter radiant heating be...

  1. What is the best system to use for thermal control?
  2. When would perimeter radiant heating be most logical as the primary means of thermal control?
  3. What are some of the benefits of a central environmental control system over distributed "individual" systems?
  4. What are some of the benefits of using distributed "individual" systems over a central environmental control system?
  5. Sustainability ("Development that meets the needs of the present without compromising the ability of future generations to meet their own needs") is often assumed to be concerned with reducing energy use, minimizing environmental pollution, maximizing our natural resources, and even providing economic savings. How might these related concerns actually be in conflict with each other?

In: Civil Engineering

The detail of column and pad footing are as under:                                   

The detail of column and pad footing are as under:                                                                             [5]

                Size of column: 300 mm x 300 mm.                                                                                           

Live load on column: 900 kN.

         

Dead load on column: 1200 kN.

         

Soil Bearing Pressure: 180 kN/m² and Depth of footing as 400 mm

         

Nominal cover: 50 mm and 20 mm diameter bars for reinforcement

  1. Design the footing for bending.     
  2. Check the footing in two way shear.         

iii. Write the reasons for considering the service loads for dimensioning of the footing and factored loads for calculating the factored soil pressure.

  1. Consider fcu=40 N/mm2, fy=460 N/mm2, severe exposure condition and 2 hours of fire resistance for all the questions.
  2. Use B.S 8110 for all your calculations and references.
  3. Draw the structural detailing after designing each member for all the questions.
  4. Unit weight of concrete as 25 kN/m3

In: Civil Engineering

Determine the shear stress developed on a 3-m circular shaft with D=250 mm, G = 83GPa...

Determine the shear stress developed on a 3-m circular shaft with D=250 mm, G = 83GPa applied with the torque, T = 100 kN-m,

a. at the center of the cross-section

b. at a point 50 mm away from the center

c. at a point 100 mm away from the center

d. maximum distance from the center

In: Civil Engineering

The service load bending moments on a beam are 128 kip-ft for dead load and 107...

The service load bending moments on a beam are 128 kip-ft for dead load and 107 kip-ft for live load. The beam is 12 in. wide, f’c is 3000 psi and fy is 60 ksi. Determine Mu, Mt, p, R, the depth of the beam and the As of tensile reinforcing required. How many no. 8 bars or No. 10 bars would have the required As?

In: Civil Engineering

Explain how Design-Bid-Build and Design-Build project delivery methods can differently affect on management of project changes,...

Explain how Design-Bid-Build and Design-Build project delivery methods can differently affect on management of project changes, claims, and disputes (Max 200 words).             

In: Civil Engineering

What is the typical approach in the contracts to shift the project risk to the other...

What is the typical approach in the contracts to shift the project risk to the other contracting party? What are the usual consequences of this inequitable risk assignment? Provide an example of contract provisions that are typically used to shift the project risk to other parties (Max 200 words).

In: Civil Engineering

Q5 Before carrying out rectification being an engineer how you will do the task preparation.

Q5 Before carrying out rectification being an engineer how you will do the task preparation.

In: Civil Engineering