1. Fill in the blanks in the following:

One bag of cement contains litres of cement which is normally equal to

Consistency cement is measured by apparatus whereas LeChatelier apparatus is used to determine the of cement.

For very low and low workability concrete test is not useful for determining the workability but is preferred.

Size of timber specimen for conducting compression test (parallel to grain) is for perpendicular to grain is

method and method are the two most popular methods used for non-destructive testing of hardened concrete.

Increase in volume of sand due to the presence of moisture is called as
Whereas separating of ingredients in concrete mix is called as

The bottom and top diameters of mould used for slump test are and ______respectively.

2. Discuss the practical significance of determining the standard consistency of cement and describe the method of determining the same. Give a neat sketch (with dimension) of the apparatus.

3. Name any four tests for particle size and shape of aggregates. Describe the test for determining the angularity number in detail. Also give the acceptable range of angularity number.

4. Define workability of concrete mix. Name any four methods of determining workability. Describe the compaction factor test and its limitations. Give a neat sketch of experimental set-up.

Explain the effect of height/diameter ratio of specimen and rate of loading on the compressive strength of concrete.

Describe the cylinder splitting test for determining the tensile strength of concrete. Give the advantages of this test.

Describe the acceptance criteria for concrete as per IS:456.

Define the characteristic strength of concrete.

7. Write short notes on any four of the following:

Glue-Adhesion Test

Efflorescence of Bricks

Non-Destructive Tests

Capping of Specimen

Deval Abrasion Test

Fineness of Cement