Q1D In a Marshall Design procedure for an asphalt mixture, the weight of aggregate (W) is 1200.0 g, and the weight of asphalt binder (W) is 76.0 g. The voids filled with asphalt (VFA) value is determined to be 73.0%, and the effective asphalt content by total weight of mixture (P) is found to be 3.80%. If the bulk specific gravity of aggregate (G) is 2.568, the specific gravity of asphalt binder (G)=1.030, and the density of water (y)-1.000 g/cm³, determine the following properties of the asphalt mixture: a. The absorbed asphalt binder content (P), percent by weight of aggregate b. The effective specifc gravity of the aggregate (G) c. The bulk specife gravity of the compacted asphalt mixture (Gm) d. The voids in mineral aggregate (VMA), percent by total volume of mixture e. The voids in total mixture (VTM), percent by total volume of mixture

Q: State four different asphalt modifiers that can be added to asphalt or asphalt mixtures, and…

A: Type of asphalt modifiers: When we discuss about the basic ingredients, paving asphalt couldn’t be…

Q: Example1: An asphalt cor specific gravit volume relatic

A:

Q: An asphalt mixture has a bitumen content of 5.7% and has been compacted to a density of 2360kg/m3 .…

A:

Q: Temperature has a large effect on the asphalt viscosity. Plot a typical (qualitative) relationship…

A: If we have bitumen A and bitumen B at 25°C B is stiffer than A. At the same temperature but…

Q: Choose standard PG asphalt binder grade for the following condition: (show your calculation) The…

A: PG asphalt binder  PG grading establishes the grade of a binder based on numerous measures of its…

Q: An asphalt concrete mix has a density of 2410 kg/m³ and an asphalt content of 5.5%. The asphalt…

A: The given data is: Density=2410 kg/m3 Asphalt content=5.5% Asphalt absorption=0.7% Relative gravity…

Q: The flexible pavement cross-section shown in Figure 2 was determined by the Asphalt Institute…

A: The Structural Number (SN) represents depicts the overall structural requirement needed to sustain…

Q: Problem 4 (15pts) Compute the dust proportion for asphalt mixture having the following properties…

A:

Q: 2210 kg of aggregate with bulk specific gravity of 2.653 is mixed with 146 kg of asphalt with…

A: wt of aggregate 2210kg sp gravity in bulk 2.653 wt of asphalt 146 sp gravity 1.02 To make 1m3 of…

Q: 17. In the Asphalt Institute flexible pavement design approach, Where are the critical stress and…

A: Explanation: According to the Asphalt Institute Flexible Pavement Design approach, the strain in…

Q: Which statement is TRUE about modified asphalts? O There is only one method of modifying asphalt. O…

A: Brief Concept Introduction- Modified Asphalts- These are different than the normal asphalt. They…

Asphalt Binders and Mixtures

Asphalt binders are subsidiary products procured during the refining process of petroleum while manufacturing gasoline, diesel, and similar petroleum products. Asphalt binders are obtained from the residue that remains after the distillation of petroleum, this residue is further subjected to steam distillation and oxidation to remove the traces of gas oil present in the residue. Certain additives or modifiers are also added to asphalt binders to alter them to suit different applications.