Questions
Which ASTM cement(Type 1-Type 5) is most appropriate for the following construction applications? What types of...

Which ASTM cement(Type 1-Type 5) is most appropriate for the following construction applications? What types of mineral and/or chemical admixtures could be used for each application? Give detailed reasons for your choices.

  • Construction of a bridge pier in the sea.

In: Civil Engineering

What causes thermal cracking of concrete in early day of concreting? Name 4 methods that can...

What causes thermal cracking of concrete in early day of concreting? Name 4 methods that can be used to control it and give reasons in details.   

In: Civil Engineering

Suppose an office building is constructed for an owner. The punch list items are addressed, and...

  1. Suppose an office building is constructed for an owner. The punch list items are addressed, and the project is accepted by the owner. Three months later during the winter season, the owner noticed that the roof developed a small leak and that the leaking water caused discoloration of several suspended ceiling tiles. The main cause of the leakage is an issue in the roof installation and structure that was not readialy observable during final inspection carried out by the owner’s representative. Suppose the owner then noticed that the space between the bottom of three doors and the surface of the floor was nearly ½ inch, exceeding the ¼ inch that was specified in the construction documents. (1) What type of defect is the roof issue? Should the roof repairs and the replacement of the ceiling tiles be covered by warranty? Explain your answer. (2) What type of defect is the extra space between the bottom of doors and the surface of the floor? Should the repaid of the space between the bottom of doors and the surface of the floor be covered by warranty? Explain your answer.    

In: Civil Engineering

In the design of a city water supply system, three reservoirs are connected by three pipes...

In the design of a city water supply system, three reservoirs are connected by three pipes which meet at the junction. Reservoir A needs to supply 0.0938 m3/s to lower reservoirs B (Elevation 150 m) and C (Elevation 140 m). Pipe 1 is 900 m long and 300 mm in diameter, pipe 2 is a 200 mm diameter pipe 387 m long, and pipe 3 is 200 mm in diameter and 700 m long. The roughness coefficient for all pipes is 0.011.
a. Determine the discharge in pipe 2.
b. Compute the discharge in pipe 3.
c. What is the elevation of the water surface of reservoir A?

In: Civil Engineering

A rectangular cross section beam (A) made of steel constructed in an industrial building between two...

A rectangular cross section beam (A) made of steel constructed in an industrial building between two columns which are “X” m apart. The beam is acting as a support for one end of a pair of crane wheel (B). The distance b/w wheels are “Y” m. The crane is used to lift max. of Z tonnes of load which is having hook at the centre of crane. Draw shear force and B.M diagram of the beam.
Case i) If the crane wheels are positioned at equal distances from centre of the beam.
Case ii) If one of the crane wheels is exactly at the centre.
Case iii) If one of the crane wheels comes exactly over a column.
Also find the max. bending stresses in the beam for the first case considering the depth (d) as twice the width of the beam.
Note: The values of X, Y, Z and d are to be taken from the following table.
where X(m)=4.8, Y(m)=1, Z(tonnes)=9, depth(d)(mm)=500.

In: Civil Engineering

A cubical tank has sides of 4.5m which contains three immiscible liquids at same depths. A...

A cubical tank has sides of 4.5m which contains three immiscible liquids at same depths. A water upto a height of 1.5m above the base, An immiscible liquid of specific gravity 0.9 is filled in between both liquids (mid-portion) upto 1.5m height, the upper remaining part is filled with oil of specific gravity 0.79. Calculate (i) The value of pressures at the top, at the interface points and at bottom on one side of the tank (ii) The position of center of pressure for one side of the tank. (iii) What suggestions would you give to your client on the basis of obtained results? (iv) Pressure distribution Diagram

In: Civil Engineering

According to Turkish Standards; How to calculate Shrinkage and Shrinkage of Concrete? (Can be viewed from...

According to Turkish Standards; How to calculate Shrinkage and Shrinkage of Concrete? (Can be viewed from TS500)
Please explain by solving one numerical sample.

In: Civil Engineering

 (a) What are the various classifications of mortar? (b) In accordance with ‘kind of binding...

 (a) What are the various classifications of mortar? (b) In accordance with ‘kind of binding material’, mortars are classified into five basic categories. List and explain

In: Civil Engineering

Setting up the field office includes all except Select one: a. Preparing construction administration files, forms,...

Setting up the field office includes all except

Select one:

a. Preparing construction administration files, forms, and documentation

b. Establishing utilities for the field office

c. Establishing utilities for the field office

d. Sighting the location for the temporary trailer office

e. Clearing and Grabbing

In: Civil Engineering

A CM basin with a volume of 475 m3 receives a flow of 2000 m3 d−1....

A CM basin with a volume of 475 m3 receives a flow of 2000 m3 d−1. The basin has a dead volume of 42 m3. Find the effluent tracer curve if a mass of 5 g of tracer is added instantaneously to the influent. Also plot the effluent tracer curve for the reactor without dead volume.

In: Civil Engineering

Compute for the total linear measurement of the steel works given the measured quantity in tonnes...


Compute for the total linear measurement of the steel works given the measured quantity in tonnes (kg) as per bar sizes.
Steel Bar Size
QTY
Unit
Unit Weight
TOTAL (kg)
25 mm ø
m
5,782.50
20 mm ø
m
7,401.00
14 mm ø
m
5,445.00
10 mm ø
m
3,702.00
TOTAL

In: Civil Engineering

Explain the behavior of rc beam (load-deflection or Moment-curvature) under the flexural loading highlighting different stages...

Explain the behavior of rc beam (load-deflection or Moment-curvature) under the flexural loading highlighting different stages of loading till failure; i.e. un-cracked section, cracked section, service condition, yielding and ultimate loading condition.

In: Civil Engineering

Compare and contrast the following two traffic management measures highlighting the all potential pros and cons...

Compare and contrast the following two traffic management measures highlighting the all potential pros and cons or each approach if they were introduced into your home city.

a) Road user charging at a cordon around the city.

b) Introduction of Bus priority measures at busy junctions within the town/city.

In: Civil Engineering

Compare and contrast the following two traffic management measures highlighting the all potential pros and cons...

Compare and contrast the following two traffic management measures highlighting the all potential pros and cons or each approach if they were introduced into your home city. Cairo ).

a) Road user charging at a cordon around the city.

b) Introduction of Bus priority measures at busy junctions within Cairo

In: Civil Engineering

Explain: 1. Impact, advantage and disadvantage of adopting I.R. 4.0 in water industry 2. How does...

Explain:

1. Impact, advantage and disadvantage of adopting I.R. 4.0 in water industry
2. How does I.R.4.0 help to solve the problems in water industry

In: Civil Engineering