Constructon material True or falt C. a and D 13. The net area compressive streng

Question

Constructon material True or falt C. a and D 13. The net area compressive strength is calculated by dividing the load at failure 14. The use of grout to bond the reinforcing steel to the masonry increases the net 15. Fractional distillation produces asphalt and several other products by applying 16. An advantage of Superpave asphalt concrete is that it does not need compaction. 17. The asphalt concrete Superpave design system is based primarily on laboratory by the gross cross-sectional area of the unit. cross sectional area and also decreases the fire resistance. steam and increasing the temperature and pressure to the natural petroleum. tests using aggregates from the local area where it is to be used. Heat is required to use asphalt cement, asphalt emulsions and asphalt cutbacks 19. Heavier molecular weights of asphalts are more viscous and harder. 20. PG 52-22 is a "hard" asphalt binder. 21. Viscosity increases as temperature decreases. 22. Emulsion asphalt typically has more water than asphalt cement 23. More than 90% of the roadways in the US, are paved with asphalt concrete 24. Superpave specifications for asphalt binders and mixtures control three distress modes: rutting, thermal cracking and fatigue cracking. 25. Early wood is the light colored ring which grows in spring and is composed of thin-walled cells which contain bound water. 26. Removal of the bound water does not effect shrinkage.

Explanation / Answer

13 false (only the area participating in the failure is taken which is certainly less than the gross sectional area)

14 false ( increases the fire resistance)

15 true

16 false

17 true

18 true

19 true

20 true

21 true (viscosity and temperature are inversely proportional to each other)

22 true

23 true

24 true

25 true

26 false

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