State whether the following statements are true or false: 1. Higher values ​​of asphalt penetration test indicate softer consistency, and this asphalt is preferred for use in hot climate areas. 2. In AASHTO soil classification system, the group index (GI) is incorporated with the groups and subgroups of the soil to evaluate the type of a soil. 3. The asphalt material behaves more similar to a viscous fluid at intermediate temperatures and longer loading times.

Q: f. The effective specific gravity of the agg 2. Determine the Max, theoretical specific gravity of…

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Q: Explain the shape of vma vs asphalt content curve.Also describe dry vma and wet vma

A: The objective of this study is to evaluate the effects of aggregate shape on volumetric properties…

Q: The next three questions (MCQS) are based on the following information: The design structure number…

A: Given data is Design SN for incoming traffic = 5.18 Design SN for outgoing traffic = 3.05 Expression…

Q: According to the available data of asphalt Gb = 1.025, Pb= 4.5), Aggregate (Gsb = 2.605, Gse =…

A: Answer To calculate Volumetric properties of the HMA paving mixture Consider bulk volume of paving…

Q: Example:- The design data shown in table, are used in the sample of paving mixture. Calculate…

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Q: Asphalt, cement, and lime are commonly used to stabilize soil for road bases. Which of these seems…

A: There is more than one material that is generally used to stabilize soil for road bases. These…

Q: pavement

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Q: Discuss  some  of  the  different  asphalt  compactors  that  can  be  used  to  compact  a  hot…

A: We have to discuss the different asphalt compactor that can used to compact a hot mix asphalt road…

Q: a) The following data are available in a density-void analysis for Marshall method of mix design.…

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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: The pavement that need to be constructed is a six-lane divided highway. The present AADT (both…

A: Equivalent single axle load is generally the statistic represents a mixed stream of traffic of…

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.