Q1: Define creep in concrete? Distinguish it from elastic deformation.
Q2: Discuss the rate of concrete drying shrinkage at different
ages.
Q3: Explain the positive aspects of bleeding on concrete.
Q4: Explain the effects of size and grading of aggregates on
workability of concrete?
Q5: Differentiate between additives and admixtures with
examples.
Q6: Explain the working mechanism of retarders, plasticizers and
air entrained
admixtures.
Q7: Define volume and weigh batching of concrete? Explain with
examples.
Q8: Differentiate between continuous and batch type concrete
mixers?
Q9: Explain, how to improve cohesiveness of concrete ingredients?
Indicate its effects on
concrete segregation?
Q10: Discuss the primary reasons for the abnormal setting behaviors
of concrete?
Describe how chemical and mineral admixtures may cause concrete
abnormal setting with
the help of examples.
In: Civil Engineering
In: Civil Engineering
1. Do research on the Curriculum Development Centre (CDC) in Malaysia. Find out what the department is about, the function, its roles, and contributions in the curriculum development of Malaysia or your homecountry.
2. Select only ONE education level (pre-school, primary, secondary, tertiary) in Malaysia and explain the Curriculum Development in chronological history until the present day.
3. Write your findings in a 4- pages report (Not inclusive of
diagrams or pictures) and include your reflection at the concluding
paragraph.
In: Civil Engineering
In: Civil Engineering
In: Civil Engineering
Case Study
N. Got, P.Eng., has been hired recently as the chief engineer, as well as his assistant, James Lo, C.E.T., by a gold mine near a remote town in Northern Ontario. The mining company is the main employer in the region. Immediately upon starting the new job, N. Got spent some time reviewing the mining company’s operational procedures. No Got discovered that, for several years, tailing ponds at the mine have been releasing toxic and corrosive substances into the environment in violation of the law. N. Got also found in the company’s file a recent report prepared by an engineering consulting firm in Toronto. The report concerned an economic feasibility study for updating the mine’s facility. In the report, the engineering consulting firm specifically urged the mining company to undertake a number of expensive capital improvements necessary to ensure compliance with environmental law. N. Got also learned that the mining company could not afford the necessary improvements. N. Got found nothing in the mining company’s files that indicated that any governmental authorities were aware of the illegal discharges.
1. Discuss N. Got’s obligations with respect to the mining company
2. Discuss N. Got’s obligations with respect to the public. What is the public interest in this case? How would the public interest be impacted by N. Got’s actions? How should a potential mine closure and the resultant loss of a large number of jobs affect N. Got’s professional duties?
3. Discuss N. Got’s obligations with respect to the engineering consulting firm.
In: Civil Engineering
A class I two lane highway is on level terrain with passing
permitted
throughout. The highway has 11 ft lanes with 4 ft shoulders. There
are 16 access points
per mile. The base FFS is 60 mi/h. The highway is oriented north
and south, and
during the peak hour, 440 vehicles are going northbound and 360
vehicles are going
southbound. If the PHF is 0.87 and there are 4% large trucks, 3%
buses, and 1%
recreational vehicles, what is the level of service.
Given:
ATS: PTSF:
ET= 1.2 ET= 1.1
ER= 1.0 fG=1.0 ER= 1.0 fG=1.0`
when it is level terrain, 600<vp<1200
In: Civil Engineering
A two-lane highway is currently operating at its two-way
capacity in
rolling terrain. The traffic stream consists of cars and trucks
only. A recent traffic
count revealed 720 vehicles (total, both directions) arriving in
the most congested 15-
min interval. What is the percentage of trucks in the traffic
stream based on the ATS
service measure?
Given:
ATS:
fG=0.99 when it is rolling terrain, vp>1200
ET= 1.5
when it is rolling terrain, vp>1200
In: Civil Engineering
A rectangular beam carrying a uniform load of 26 KN/m including its own weight is limited in cross section to 300 mm x 500 mm. The beam is simply supported in a span of 6 m. Using fc = 7 Mpa, fs = 124 Mpa, n = 12, ?? = 40 ???, ?? = 1.7 ???, ?????? ?ℎ? ????. Allow 65 mm distance from centroid of steel bars to extreme fibers.
In: Civil Engineering
During the construction of a building, what are the main environmental considerations which you should address?
In: Civil Engineering
use the tables of compound interest to look up the value of the factors. Do not use the interest formulas.
Two mutually exclusive alternatives are being considered. Both have lives of 5 years. Alternative 1 has a first cost of $2,500 and annual benefits of $746. Alternative 2 costs $6,000 and has annual benefits of $1,664. The minimum attractive rate of return (MARR) is 8%.
In: Civil Engineering
Give at least 10 transportation and structural engineering topics for Capstone proposal or Thesis.
In: Civil Engineering
Given :
M=150kN-m , fc'=21Mpa , Fy=420Mpa , fs allowable = 0.4fy
Design a doubly reinforced concrete beam section , give the b , d , d' , As' , As of the concrete section.
In: Civil Engineering
Referring to Conflict management, identify the five major steps involved in managing a conflict situation with the help of an example detailed for each step. Type into the text box below:
In: Civil Engineering
Q9. Explain your agreement or disagreement with the following statement: “Cyclical decoration should be restricted to rich areas only”. The answer should include a brief description of:
Cyclical decoration.
The relevance of cyclical decoration various tenants.
The items to be replaced.
The procedure to be carried out.
In: Civil Engineering