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: An asphalt concrete mixture is to be designed according to the Marshall procedure. A PG 64-22…

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Q: As a materials engineer working for a highway department, what standard PG asphalt binder grade…

A: Case 1: Determine the high temperature grade of the pavement which satisfies the condition High…

Q: Discuss how asphalt emulsions work as a binder in asphalt mixtures.

A: Binder: Binder is a substance that is utilized for combining different substances together within…

Q: The shape and surface texture of aggregate particles are important for both Portland cement concrete…

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Q: 1. What name is given to asphalt based on its consistency at room temperature?  2. Asphalt cement is…

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Q: A compacted HMA mixture has the following properties: Bulk specific gravity of mixture (Gmb) = 2.331…

A: Given: The bulk specific gravity of the mixture is 2.331. The theoretical maximum specific gravity…

Q: The Marshall method was used to design an asphalt concrete mixture. A PG 64-22 asphalt cement with a…

A: Given :- A specific gravity of PG 64-22 asphalt cement (Gb ) = 1.031   A bulk specific gravity (Gsb…

Q: a. What is the percent voids fill with asphalt? b. What is the percent voids in mineral aggregates?…

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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: An asphalt concrete mixture includes 94% aggregate by weight. The specific gravities of aggregate…

A: Given: Percentage of aggregates in the mix by weight = 94% The specific gravity of aggregates,…

Q: A compacted asphalt concrete specimen has the following properties:Asphalt content = 5% by total…

A: Calculate the voids in the total mixture (VTM),  VTM = 1-GmbGmm×100 where Gmb - Bulk specific…

Q: If the absorbed asphalt t by aggregate =0.25%,and effective asphalt =5.75%. The total asphalt…

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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: Which of the following is a common binder in the production of asphalt concrete? A) Cement B)…

A: Binding materials used in construction work are materials or substances that hold other materials…

Q: What binder is used with aggregate to produce quality asphalt pavements?

A: Binders are Essential Component of a Asphalt Concrete in order to hold aggregates Together and…

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 mixture maximum specific gravity at 5.0 % asphalt binder content is 2.495. The asphalt specific…

A: To Find :- Gse :- effective specific gravity Given data:- Gmm  = 2.495 Gb = 1.030 Pb = 5%

Q: The following results were obtained for an asphalt binder. Determine if the binder meets the…

A: To determine -  If the binder meets the Superpave specifications for the followinga) Rutting b)…

Q: A 5% of Rediset is used by the weight of asphalt binder to produce a WAM specimen has 1080 gm…

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Q: why is asphalt application ratio is important

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

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

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Q: As part of mix design, a laboratory-compacted cylindrical asphalt specimen is weighed for…

A: Given that a cylindrical asphalt is weighted for bulk specific gravity Dry mass in air (A) = 1264.7…

Q: What standard PG asphalt binder grade should be selected under the following conditions: The…

A: It is required to determine the high temperature grade. High temperature grade=Mean maximum…

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: 9- The cutback asphalt binder can be classified into fast, medium and slow based on and---- a) Rate…

A: The cutback asphalt binder can be classified into fast, medium and slow based onand rate of curing…

Q: Why is it important to have optimum binder content in asphalt concrete?What would happen if a…

A: The mixture of asphalt and concrete when binded together which is then used in pavement works…

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: A sample of aggregate weighing of 3800g. 45.5% retaining on sieve No.4. and 48.5% it is retaining on…

A: Asphalt Content (%) % Mineral filler(W3) Weight in air (gm) Weight in water (gm) Stability(KN)…

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: An asphalt mix contains 2250kg of aggregates and 150kg of bitumen binder per m3 . Bitumen absorption…

A: Asphalt mix Mass of Aggregates per m3 = 2250 kg Mass of bitumen per m3 = 150 kg Bitumen absorption…

Q: The Marshall method was used to design an asphalt concrete mixture. A PG 64-22 asphalt cement with a…

A: Specific gravityGb=1.031,Mix particle size=9.5 mm,Bulk specific gravity(Gsb)=2.696,Theoretical…

Q: the asphalt used in asph classified according to

A: ASPHALT AND BITUMEN

Q: Explain briefly about Viscosity of Asphalt Binder by Rotational Viscometer and what is its…

A: Rotational  Viscometer  :  Rotational viscometer  is used to determine the viscosity of the asphalt…

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.