Which equipment is used in the laboratory to determine asphalt cement high PG according to Superpave mix design Bending Beam Rheometer (BBR) Binder Penetration Dynamic Shear Rheometer (DSR)

Q: 51. Describe the process for the multiple stress creep recovery (MSCR) test on asphalt binder.

A: The Multiple Stress Creep Recovery (MSCR) test is a procedure used to evaluate the high-temperature…

Q: Design the concrete mix according to the following conditions: Design environment Pavement,…

A: Calculating target strength: fck'=fck+1.65Sfck'=fck+1.65×1.7=23.81 MPa Taking the water-cement…

Q: In a Marshall sample, the theoretical specific gravity of mix is 2.45. The specific gravity of…

A: given- theoretical specific gravity of mix-Gt=2.45specific gravity of-coarse aggregate G1=2.67fine…

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: A sample of coarse aggregate was tested in a laboratory to find its moisture content. The wet weight…

A: Dry weight=5235.1gmWet weight=5403.5gmMoisture content=Wwet-WdryWdry×100Free water=MC-Absorption

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: We require a mix with a mean 28-day compressive strength of 28 MPa. The slump is selected to be 40…

A:

Q: Coarse aggregate is placed in a rigid bucket and rodded with tamping rod. The volume of the bucket…

A:

Q: Example 2 : Design a concrete mix to implement a concrete slab (exposed to sever conditions moisture…

A: f'c = 30 MPaS = 4 MPa FM = 2.4 Apparent density = 1500 kg/m3

Q: Questions 30 is based on the information below: An asphalt concrete mix design has the following…

A:

Q: The raw materials used in Portland Cement production are:

A: Portland cement: Portland cement is a calcium silicate cement made by firing a well-homogenized and…

Q: When a sample subjected to the procedure of ASTM C40 produces a color darker than the standard…

A: Answer: The test sample shell have a mass of about approximately 450g and be taken from the larger…

Q: Although the constituents of concrete (aggregate and hydrated cement paste) behave in a linear…

A: Although aggregate and hydrated cement paste have linear stress-strain curves but the concrete…

Q: Depending on the properties of the different chemicals and their relative composition, identify the…

A: Tri Calcium Aluminate (3CaO.Al2O3) or C3A is responsible for the flash setting of the cement and…

Q: for the asphaltic material, the strain-time relationship , determined as follows under a shear…

A:

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.