Test II

Match words in columns A and B (synonym match):

A B

1. application a). instrumentation b). mapping

c). location d). employment

2. fiber a). filament b). level

c). range d). mark

3. to maintain a). to defend b). to support

c). to elevate d). to measure

4. load a). force b). weight

c). site d). data

5. durable a). ready b). necessary

c). alternative d). secure

6. to achieve a). to apply b). to waste

c). to obtain d). to point

7. to expose a). to subject b). to finish

c). to form d). to remain

8. tough a). shallow b). rigid

c). square d). regular

9. to include a). to test b). to survey

c). to own d). to comprise

10. expenditure a). requirement b). dimension

c). expense d). layout

Test III

Select the best possible answer out of the choices from the list to the statements (multiple choice):

1. Glass fiber reinforced concrete composites contain high strength glass fibers…

a. that can be cast into almost any shape.

b. that reduce the impact on environment.

c. that protect the materials from the flame heat.

d. that are surrounded by a cementitious medium.

2. The orientation of fiber in each layer and the stacking sequence of the layers can be used.… .

a. to make GFRC ideal for outdoor or indoor applications.

b. to produce a range of mechanical properties.

c. to withstand different environmental conditions.

d. to keep the fibers in the preferred position and direction.

3. In numerous environmental conditions GFRC is likely to function better …

a. due to the ability to endure seismic loads.

b. due to the materials that are unlikely to burn.

c. due to the absence of steel reinforcement that may corrode.

d. due to the improved resultant properties.

4. Less weight facilitates easy and rapid installation, and also … .

a. takes the role of a thermal regulator while exposed to fire.

b. survives as long as pre-cast concrete.

c. improves physical properties such as moisture movement.

d. decreases the load applied on the structure.

5. GFRC is less vulnerable to weather effects and more resistant to … .

a. corrosion than the normal concrete.

b. freeze thaw than the normal concrete.

c. the damage due to environment.

d. the conventional mixing techniques.

Test IV

Complete the sentences by filling in the correct word that fits a statement (gap fill). Choose the appropriate words from the word bank given below.

A. elements B. cementitious C. material D. applications

E. regulator F. solid G. e-glass H. laboratory I. lightweight

J. properties K. integrated L. environment

1. GFRC is an engineered concrete that has numerous …… in concrete products including ornamental structures, fountains, domes.

2. Glass fiber reinforced concrete composites contain high strength glass fibers that are surrounded by a …… medium.

3. Both the fibers and the …… maintain their natural individual chemical characteristics.

4. Glass fibers can be …… into the matrix either in constant or irregular lengths.

5. The glass fibers are the main …… that carry the load.

6. The most common type of glass fibers used for general applications is …… .

7. All these properties are combined with the fact that GFRC looks like …… concrete.

8. GFRC …… can change depending upon the design of mix, fiber content, and the techniques used for manufacture.

9. GFRC has been tested in the …… and also in the actual installations, and can be anticipated to survive as long as pre-cast concrete.

10. The concrete takes the role of a thermal …… while exposed to fire and protects the materials from the flame heat.

UNIT 10