Say if the sentences concerning Text 2B are true or false

1. The pavement resists only traffic stresses.

2. Surfacing is the most expensive part of the pavement.

3. The stresses induced in the pavement by vehicle wheels attenuate with the width.

4. The sub-base is the most rigid layer of the pavement.

5. The sub-base is inserted when necessary between the pavement base and the roadbed.

6. The pavement base is laid on the surface of the roadbed.

7. The subgrade consists of a course and a wearing course.

8. The pavement base contains stony material or stone with a binding matrix.

9. The sub-base layer is not always necessary.

10. The pavement base course is subjected to the direct actions of wheels.

6. Explain in English the meaning of the following words and word-combinations used in the text:

Pavement base, wearing course, multilayer structure, sub-base, subgrade, wheel, stone.

7. Fill in the table “Pavement structural layers” using the basic terms from the text:

8. Find in the text synonyms to the following words and word-combinations:

top, include, relatively, provide, allow, effect, decrease, spread, wet, substance, under, formation level.

9. Describe each structural layer of the pavement.

1. Before you start. · Do you know why after heavy rain many streets of our city are flooded? · What is the main function of side ditches?

2. Read the words and learn them by heart.

1. flume – открытый водоотвод

2. interceptor ditch – нагорная канава

3. drain channel – дренажный канал

4. water discharge – сток воды

5. crown – уклон

6. roadside – обочина

7. evaporation – испарение

8. ponding – затопление

9. saturation – подтопление

10. impermeable soil – непроницаемая почва

11. runoff – сток

12. surface runoff – поверхностный сток

13. ground water – грунтовые воды

14. flue – канал

15. blade grader – автогрейдер