King Fahd University of Petroleum and Minerals

Department of Civil Engineering

 

CE-303

Term-81

 

H.W Assignment # 2

 

Instructor: Dr. Salah Othman Al-Dulaijan

 

 

Student Name: _____________________________________________________

 

Student ID #:______________________________________________________

 

 

  1. Briefly describe the following tests and how they affect the properties of concrete:
    1. Fineness
    2.  Soundness
    3. Consistency
    4. Setting time (compare different types of cement)
    5. Compressive strength
    6. Heat of hydration  (compare different types of cement)

g.       Loss on ignition.

 

  1. Describe the stages for heat evolution in the hydration reaction of cement.

 

  1. What is the difference between density and specific gravity of concrete?

 

  1. What is the maximum allowable limit for chloride for concrete bridges? Is this limit the same for other reinforced concrete structures, if not why?

 

  1. What is the effect of impurities in mixing waters on concrete performance?

 

  1. Is sea water good to use as mixing water for concrete preparation? Explain

 

  1. Explain why the use of acid waters with pH values less than 3.0 should be avoided in concrete preparations.

 

 

Due date: Monday, March 13th 2006