Reading-Comprehension exercise

Ex.7. Say which of the following issues are considered in the text. If they are, say which sentences from the text deal with the issue concerned.

- advantages of concrete,

- types and uses of concrete,

- curing, setting and hardening of concrete

- possible failures,

- different methods of preventing failures,

- different admixture and their uses,

- substitutes for cement,

- the common ingredients of concrete,

- kinds of aggregates,

- the difference between concrete and cement.

Text-based exercises

Ex. 8. Insert into the sentences the right word or word group from the box.

hydration process; gravel limestone; the workability; stone-like material; recycled aggregates; permeability; tiny air bubbles; chemical admixtures; the hydration; exposed aggregate finish; bonding agents; develops strength

1. The coarse aggregate in concrete is normally _______ or granite.

2. The water reacts with the cement, which bonds the other components together and creates a ________.

3. The water and cement paste hardens ______ and over time.

From construction, demolition and excavation waste are used as partial replacements of natural aggregates

Decorative stones or crushed glass are added to the surface of concrete for a decorative ______.