Why is it important to have optimum binder content in Hot-Mix-Asphalt? What would happen if a less-than-optimum binder content is used? What would happen if more than the optimum value is used? What is the typical range of binder content in HMA

Q: highway engineering labartory name test "Standard Test Method for Ductility of Bituminous…

A: Test for ductility is done in order to determine the suitability of the bitumen for road…

Q: QUESTION 11 Which one is NOT the benefit of compaction of asphalt concrete pavement? O a. Ensure the…

A: Compaction is the method of reducing the amount of airflow inside an Asphalt mix by reorienting the…

Q: A bitumen concrete mix has average specific gravity of material as 2,32 and the theoretical specific…

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Q: the main function of aggregate in asphalt mixtures is to resist applied load and abrasion fill voids…

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Q: Based on a Mixture design analysis you determined an optimum asphalt content of 5%. Based on this…

A: Givenaggrigate 1=55 %     G1=2.75aggrigate 2=40 %     G2=2.71aggrigate 3=5 %     G3=2.68after…

Q: % absorbed asphalt by aggregate(Ps2) equal to zero when * O none of these O bulk Gagg more than eff…

A: % absorbed asphalt by aggregate(Ps2) = 0 When Bulk Gagg = Effective Gagg (Bulk Gagg means Bulk…

Q: State four advantages of recycling asphalt pavement materials. Why can we not mix the RAP materials…

A: Similarity of recycled asphalt pavement materials with original: Recycling of asphalt doesn't change…

Q: 5- The two major parameters considered in the Marshall mix design are a) Workability and stability…

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Q: Q2) The following results were obtained from testing a certain asphalt binder: Original Asphalt RTFO…

A: After analyzing the test results, the following conclusions were made,

Q: Find the total weights of RAP and virgin asphalt binders in gm of five specimens cored from a slab…

A: The given data is: Dia of cone=101.6 mm H=40 mm Volume of core=π4d2h=π4101.62×40=324293.545 mm3

Q: Answer the question based on the data given; SG bulk of the asphalt, 2.332 Theoretical maximum…

A: We will use formula for air voids.

Q: For 19.0mm nominal maximum size mixture, the Combined Gsb for blend1 =2.699, blend 2 = 2.697, blend…

A: The volume of aggregate can be calculated using the formula:Vagg = Pagg / GsbWhere:Vagg is the…

Q: Determine the specific gravity of combined aggregate in a bituminous mix having maximum theoretical…

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Q: During asphalt mix production the bitumen content is acceptable within the range of -0.2 and +0.2 of…

A: Following is required answer :

Q: the mostly kinds of liquid asphalt used in pavement construction are * O Mc and Rc O Rc O Sc Sc and…

A: Solution:- The mostly kinds of liquid asphalt used in pavement construction are  Medium Curing(MC)…

Q: the asphalt binder with Rostler Parameter value equal to 1.3 has more performance than asphalt…

A: Finding out true and false statement.

Q: Explain following objectives of hot mix asphalt (HMA). i) Deformation resistance  ii) Moisture…

A: HMA- HMA is the hot mixture of the Asphalt binder and graded mineral mixed with elevated temperature…

Q: the temperature at which asphalt binder will burn is .... ..·. .....

A: - components of Asphalt binder- - aliphatic hydrocarbons, and is around 95% carbon and hydrogen (±…

Q: why is asphalt application ratio is important

A: The asphalt ratio is considered very important for achieving the desired pavement performance by…

Q: Why is warm asphalt preferred

A: 1.  It's Viscosity of the stiff binder decreases and the drop of temperature with time is less →…

Q: 6- The temperature range which is used for the compaction process of asphalt with aggregate in the…

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Q: Stone Mastic Asphalt is a gap graded type of mixture. O True O False

A: GIVEN: Statement Stone Mastic Asphalt is a gap graded type of mixture. TO FIND: Whether above…

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: (b) Explain THREE (3) types of crushed aggregate that commonly used in asphalt mixture design and…

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Q: How can we obtain the best ratio of asphalt?

A: Mix design is a method which is used to determine the best combination of material for optimum…

Q: A bitumen mixture having the following composition had a compacted unit weight of 2 g/cc, coarse…

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Q: Unit Binder Stability Flow weight Va % VFA % (g/cm) Content (kN) (mm) 4 8.5 1.5 2.014 6.5 55 4.5 9.3…

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Q: which of the following statements is true

A: Asphalt is used to make the surface of roads

Q: . . is one of aggregate properties that have a significant effect in improving the interconnect…

A: Finding out the aggregate properties which have significant effect in improving the interconnect…

Q: The use of asphalt as a binder is closely related to the influence of temperature. Explain the…

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Q: An asphalt sample which is claimed to be AC- 20 is tested by an agency. Which test result will…

A: The acceptable limit of viscosity at 60°C on the original sample is 2000±400 poise. In the first…

Q: a) What is the percent of voids filled with asphalt (%VFA) of the hot mix asphalt has the following…

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Q: the asphalt used in asph classified according to

A: ASPHALT AND BITUMEN

Bituminous Materials

The word 'bituminous' in Bituminous materials come from the word bitumen, which is popularly known as 'asphalt' in the United States. Asphalt is a heavier substance that is obtained by the fractional distillation of crude oil, after removing the lighter components such as gasoline and diesel. Asphalts are known to have good adhesive and waterproofing properties. Depending upon the grade needed, asphalt may be refined several times in the fractional distillation column.