Please explain What pavement distresses that can be caused by having gap graded and dense graded aggregates in asphaltic mixture? Explain how it can happen
Q: Please answer clearly Explain root causes and remedial measures of the following distresses…
A: The root cause and remedial measures for the various distresses in flexible pavement have been…
Q: Briefly describe the interaction that occurs when asphalt and SBS are mixed.
A: Solution: Describe the interaction that occurs when asphalt and SBS are mixed SBS react with asphalt…
Q: A flexible pavement is consfructed with 3 inches of hof-mix asphalf (HMA) wearing urface, 6 inches…
A: Given:- hot mix asphalt=3 inches emulsion aggregate=6 inches crushed stone subbase=6 inches soil…
Q: What are the components of hot-mix asphalt? What is the functions of each component in the mix?
A: Introduction- The Hot mix asphalt (HMA) is made out of aggregate that has been evenly mixed and…
Q: What are the critical pavement responses in flexible pavements that can be analyzed using structural…
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Q: Discuss root causes and remedial measures of the following distresses occurring in flexible…
A: Flexible pavement is the pavement in which various layers of road deflects or bends under the load…
Q: Explain why the strength of asphalt concrete is not necessarily the mostimportant property of the…
A: Asphalt concrete has different performance characteristics like surface durability tire wear braking…
Q: Name three methods of asphalt pavement recycling. Which one of them is the predominant method?…
A: The asphalt recycling is mainly done to save the energy and time in transporting and manufacturing…
Q: What is the most common polymer used for modifying asphalt cement?
A: ADVANTAGE POLYMER MODIFIED ASPHALT: Increases the durability increases the life of pavement less…
Q: Characterize asphalt cement.
A: Asphalt cement is a highly viscous liquid form of petroleum. It acts as the glue that binds the…
Q: Full depth asphalt (FDA) and Conventional Flexible (CF) are pavement types used * in the thickness…
A: Full depth asphalt pavement are generally designed to counter the fatigue and rutt forming when it…
Q: a. Explain about the role of microtexture and macrotexture on pavement surface. b. Explain what are…
A: Brief concept introduction- Pavement surface- The durable surface material placed down on an area…
Q: A lexible pavement is to be designed according to the AASHTO design method. The total expected ESAL…
A: Pavement is the subgrade of the structure which is very useful to transfer the load and also to give…
Q: For road or airfield pavements, what are the effort for control or protection has frequently used?
A: Most protection activities on the airport pavements are typical to all forms of pavement. » Removal…
Q: Civil Engineering - Be able to explain rigid pavement responses Be able to explain critical rigid…
A: Concrete is an adaptable development material, which is gotten by solidifying a combination of…
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: why do coal tar pitch and asphalt not compatible? why do we need to avoid these two to contact each…
A: coal tar : tar produced by distilling bituminous coal and used mostly as an industrial fuel, in the…
Q: What are the ingredients of asphalt cutbacks? Name two main uses of asphalt cutbacks.
A: Cutbacks is classified are of 3 types based on the solvent. They are 1. Rapid curing cutbacks 2.…
Q: Describe the two types of asphalt production plants. Compare and
A: “Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: List three advantages of warm mix asphalt technology.
A: Warm mix asphalt technology is the latest technology which has a great advantage.
Q: What are the components of hot-mix asphalt? What is the function of each component in the mix?
A: The compaction of asphalt binder and graded mineral aggregate at a great high temperature to form a…
Q: A rigid pavement is to be used to carry a wheel load of 54.04 kN. Enough dowels will be used across…
A: Load(W)=54.04kN Strength of concrete (f)=1.52MPa
Q: Find the bulk specific gravity of a Reclaimed Asphalt Pavement (RAP) if the measured asphalt binder…
A: Given: The asphalt binder content is 4.2%. The specific gravity of the asphalt binder is 1.04. The…
Q: What is the most common polymer used for modifying asphalt cement? Briefly describe the interaction…
A: Most commonly used polymer to modifying asphalt cement:
Q: Given the information above and below, the Gse for 5% asphalt content is: A.C.= 6.0% A = Dry wt. of…
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Q: What will be the difference in thickness (in mm) between the edge and the center of the pavement
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Q: Define the importance of air void content in bituminous pavements?
A: Air voids are small airspaces or pockets of air that occur between the coated aggregate particles in…
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…
Q: (c) Describe the basic element of the rigid pavement structure with using suitable diagram. a
A: Rigid pavement is constructed using PCC, RCC & prestressed concrete. They have better flexure…
Q: As a materials engineer working for a highway department, what standard PG asphalt binder grade…
A: The condition that high/low-temperature grade of pavement should satisfy: High temperature Grade…
Q: As a Highway Engineer, explain why the quality of materials in the flexible pavement increases from…
A: Given data: Highway engineering Flexible pavement.
Q: Define cutback asphalt. Among different types of cutback asphalt which one would you prefer to…
A: The combination of asphalt cement and petroleum solvent is called as cutback asphalt. it has reduce…
Q: sir, please answer according to the topic. Q: Why Superpave method of mix design is preferred over…
A: Superpave mix design method was introduced by Strategic Highway Research Program (SHRP) which stands…
Q: How sensitive are the critical pavement responses to (a) increased tire pressure, (b) increased…
A: Pavement responses are affected by lot many factors like increased tire pressure, (b) increased…
Q: root causes and remedial measures
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Q: How much is the maximum asphalt content range percentage (%) for a typical design by weight of total…
A: According to many engineers, the optimum asphalt content is that which corresponds to a 4 percent…
Q: How can we improve Moisture Susceptibility of asphalt?
A: Moisture susceptibility of asphalt in other term it is called stripping. Moisture damage the asphalt…
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…
Q: Mark the correct statement: a) The ISC steps are: Compaction, Expansion and Simple Axial…
A: The correct statement is (C) The MR Resilience Module can be performed in a triaxial cell and…
Q: what are the advantages and disadvantages of using the cutback * ?asphalt
A: ADVANTAGES: 1) Cutback asphalt can be used as tack coats or as a stabilizing material because it…
Q: Problem 32: What is the stiffness factor of a pavement if the modulus of elasticity is 180 MPa and…
A: Calculate the stiffness factor i=?
Q: Viscosity of an asphalt binder at 60 °C and 135 *C are 935 P and 193 çSt respectively. What is the…
A: Using the IS73:2013 The viscosity Grade of Asphalt will be:
Q: What will happen to the asphalt mixture if the selected bitumen content is too high or too low…
A: Answer - option d All of the above The strength, fatigue life, durability, ravelling, rutting,…
Q: An asphalt binder is intended to be used in a climate with maximum 7-day pavement temperature of 73…
A: The RTFO aging procedure is employed to simulate aging throughout combination and placement, whereas…
Q: xplain the Superpave grading system of asphalt binder.
A: Superpave performance grading (PG) is based on the idea that an HMA asphalt binder’s properties…
Q: How sensitive are the critical pavement responses to (a) increased tire pressure, (b) increased…
A: Transportation engineering is the application of scientific and technological principles to the…
Q: rigid pavement is to be used to carry a wheel load of 51.13 kN. Enough dowels will be used across…
A:
Q: Question 21 Calculate the design thickness in mm (rounded to the nearest tens) at the center of a…
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- How can we improve Moisture Susceptibility of asphalt?What standard PG asphalt binder grade should be selected under the following conditions:a. The seven-day maximum pavement temperature has a mean of 62°C and a minimum pavement temperature of -15°C. (table9.2) b. According to part a, what is your recommendation for 20 million ESALs and 50 km/h speed? (table ESALs) c. For 50 million ESALs and 80 km/h speed. (table ESALs)Explain the Superpave grading system of asphalt binder.
- why do coal tar pitch and asphalt not compatible? why do we need to avoid these two to contact each other?What do you mean by the Absolute Viscosity Test of Asphalt? What is the test procedure involved in this ?Explain briefly about Viscosity of Asphalt Binder by Rotational Viscometer and what is its significance & use?
- How can we improve Moisture Susceptibility of asphalt? What are the main reasons of asphalt collapse? What is the desired air content of asphalt? What are the problems with higher air contents? Whatare the issues with lower air contents?One of the unbound pavement layer road base materials is “Dry-bound Macadam”. When is this material suitable for use? Describe its construction process.What are the components of hot-mix asphalt? What is the function of each component in the mix?
