Asphalt cement - Study guides, Class notes & Summaries

Asphalt Chemistry - Bituminous material are *hydrocarbons* -very complex chemical composition that depends on the oil source and refining method -*Molecular structure is more important than composition* Asphalt types used in pavements - *Asphalt cement (asphalt binder)* -used for HMA(hot mixed asphalt) *Asphalt emulsion* -used for cold mix and maintenance applications *Asphalt cutback* -used for cold mix and maintenance applications. Asphalt Cement (binder) - Adheres to most rock -wate...

CVEN 342 Asphalt & Cement Test Questions with 100% Verified solutions| Graded A+

If unused mortar stiffens due to hydration of cement, what must you do? : Discard the mortar What minimum time must you wait before caulking or grouting new tiles? : 24-48 Hours How long should you wait before installing tile on a shower pan? : 24 Hours Unstable dry rock, angular gravel, sandy loam, and cohesive soils having compressive strengths greater than 0.5 and less than 1.5 tons/sq ft (tsf), are typical examples of: : Type-B Soils If 65 street lights are fed by a 2275 volt serie...

If unused mortar stiffens due to hydration of cement, what must you do? : Discard the mortar What minimum time must you wait before caulking or grouting new tiles? : 24-48 Hours How long should you wait before installing tile on a shower pan? : 24 Hours Unstable dry rock, angular gravel, sandy loam, and cohesive soils having compressive strengths greater than 0.5 and less than 1.5 tons/sq ft (tsf), are typical examples of: : Type-B Soils If 65 street lights are fed by a 2275 volt serie...

AAAE ACE Modules 1-4 / AAAE/ACE-Security Training Course Quiz Bank with 100% Correct Answers Updated Version… Grade A+ What are the two major categories of pavement? Flexible and rigid What are some types of flexible pavement? Grass, dirt, gravel and asphalt Why are paved surfaces necessary at airports? To support the critical loads imposed on them; to produce a smooth, skid-resistant and safe-riding surface What is the benefit of using a rigid pavement such as Portland Cement C...

CVEN 342 Asphalt & Cement Test Questions with 100% Verified solutions| Graded A+

The purpose of gravel on a built-up tar-and-gravel roof is __________. A. to prevent delamination of the plys B. to protect the membrane from ultraviolet rays C. to provide ballast to help hold down the roof membrane D. all of these reasons - Answer-D. all of these reasons A roof that has a problem with ponding generally still has water on it at least ____ hours after it has rained. A. 12 B. 2 C. 24 D. 48 - Answer-D. 48 The purpose of a cant strip is to __________. A. prevent the roo...

Can you be too specific in identifying the roofing material? If so, when and why? - Answer It is dangerous to be too specific in identifying the roof material. Some roofing materials look similar to others. We say asphalt shingles rather than fiberglass shingles, fiber cement rather than asbestos cement, metal rather than tin, and single ply rather than PVC. If you don't actually get up on the roof, you should: - Answer Document your limitations in the written report. Is the roof insp...

From a fatigue perspective, the asphalt cement content should be minimized. - FALSE Stiffness of asphalt concrete increases with decreasing the frequency of loading - FALSE Performance grading requires that the measured properties of asphalt cements meet a specific maximum or minimum limit at a specific temperature - TRUE Aging of asphalt cement decreases viscosity - FALSE The objective of rotational viscometer testing is to determine asphalt binder flash point - FALSE All of the following...

AAAE ACE Modules 1- 4 What are the two major categories of pavement? - Flexible and rigid What are some types of flexible pavement? - Grass, dirt, gravel and asphalt Why are paved surfaces necessary at airports? - To support the critical loads imposed on them; to produce a smooth, skid-resistant and safe-riding surface What is the benefit of using a rigid pavement such as Portland Cement Concrete? - It is about half the lifetime cost of asphalt, with a service life of 30+ years ver...