lexible pavement has hot mix asph
Q: QUESTION 4 Normally, a flexible pavement contains: surface layer+base layer surface layer+subgrade…
A: We have to determine answer of question 4 and question 5 in which we have to choose correct option…
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 purpose does the building of the pavement serve? The numerous layers that go into the building…
A: The pavement is a surface that is safe, smooth and durable enough for traffic movement. The main…
Q: : What is the percent of voids filled with asphalt (%VFA) of the hot mix asphalt has the following…
A: Bulk specific gravity of mixture=Gm=2.318gm/cm3 Therotical specific gravity=Gt=2.479 gm/cm3 Percent…
Q: The required structural number over the base SN, is equal to 3.2 and the layer coefficient for an…
A: For new construction, the structural number of the proposed structure layer in a newly constructed…
Q: Calculate the design thickness in mm (rounded to the nearest tens) at the edges of a rigid pavement…
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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: Q1: Fill in the following blanks: .... layer. 1. The most superior material is used in ..... 2. The…
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Q: The pavement layer is considered superior if it distributes load like a А. Point load Uniformly…
A: (B) uniformly distributed load. is the correct answer.
Q: It is required to design a collector road pavement in an urban area composed of 3 layers with…
A: Solution- The materials used in the pavement construction imply that this is a flexible pavement.…
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: To select an asphalt binder for a specific location, the mean seven-day maximum pavement temperature…
A: Consider the condition which satisfies by high-temperature grade of the pavement. High temperature…
Q: Failure of Rigid pavements, their cause and repair
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Q: 1- The wearing coarse of an asphalt pavement is compacted to density of 2.395gm/cm³ using 5.5…
A: VMA: VMA means Voids in Mineral Aggregate. It is defined as the void space between the mineral…
Q: B. A rigid pavement with a 10-inch slab thickness, 90 percent reliability, E. = 4 million lb/in?,…
A: Given: The thickness of slab (D) is 10 in. The reliability is 90%. The value of Ec is 4 x 106…
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: Give me right solution... Urgent please A 5 tonne wheel load is applied on a pavement and generates…
A: Given: A 5 tonne wheel load is applied on a pavement and generates a surface deflection of 0.15 mm.…
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: Design a pavement for a rural interstate highway. The expected design ESAL is 13x106. The pavement…
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Q: An asphalt concrete mix contains: 2250kg of aggregate and 150kg of asphalt per m’. The bulk specific…
A: The volume of the object is directly proportional to its mass. As the volume increases the mass of…
Q: 1- The very thin layer of asphalt emulsion between an existing surface layer and the overlaying…
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Q: An asphalt concrete mixture includes 94% aggregate by weight. The specific gravities of aggregate…
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Q: Potholes are small in the pavement surface which penetrate all the way down to the layer. They…
A: Potholes are small depression in the pavement which penetrate all the way down to the HMA layer.They…
Q: Failure of Flexible Pavements, their causes and repair
A: Pavement : Pavement, in civil engineering, is the long-lasting surfacing of a road, airstrip, or…
Q: wheel load of 125 kN. The circular contact radius of the tire is 180 mm and the transmitted load is…
A: Given data P=152kN Radius=180mm Bearing value of base=0.60MPa Bearing value of subgrade=0.30MPa The…
Q: A flexible pavement is constructed with 4 in. (10.16 cm) of hot mix asphalt wearing surface, 8 in.…
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Q: 1. The very light asphalt application that is applied between the binder course and the surface…
A: The given questions relate to Highway Materials and construction. The explanations for the first 3…
Q: The flexible pavement cross-section shown in Figure 2 was determined by the Asphalt Institute…
A: The Structural Number (SN) represents depicts the overall structural requirement needed to sustain…
Q: Q2) A wheel load with circular area has a radius 6 in. and uniform pressure 552 kPa is applied on a…
A: Consider the given data P=Pressure=552 kPa=80 psiσ=8 psiEsub=70000 psiEHMA=350000 psi
Q: 2. A flexible pavement is constructed with 3 inches of hot-mix asphalt (HMA) wearing surface, 6…
A: Answer We are given Thickness of hot mix asphalt wearing surface D1= 3 inch Thickness of emulsion/…
Q: A flexible pavement is constructed with 4 in. (10.16 cm) of hot mix asphalt wearing surface, 8 in.…
A: In layman's words, a flexible pavement is a pavement layer made up of aggregates and bitumen that…
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: Compaction and mixing temperature of asphalt mix depends on the bitumen type. True False
A: Compaction and mixing temperature of asphalt mix depends on the bitumen type. This statement is…
Q: Q2: A homogeneous half-space pavement subjected to a circular load with 10-inch diameter. The…
A: Circular load diameter = d = 10in. Pressure = p = 50psi Elastic modulus = E = 10000psi Poisson ratio…
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: if the absorbed asphalt by aggregate =0.25%, and effective asphalt =5.75%. the total asphalt content…
A: Effective asphalt content is calculated by subtracting the amount of absorbed asphalt from the total…
Q: Distinguish clearly between hot-mix asphalt and warm-mix asphalt. Why is the latter set to become…
A: Hot Mix Asphalt refers to the asphalt mixtures that would be heated and poured at temperatures at…
Q: Q2 A homogeneous half-space pavement subjected to a circular load with 10-inch diameter. The…
A: Highways and the component of it are mainly for connecting people from one place to another by in…
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: * the layer of liquid asphalt applied between two paved layer is Sc O none of them Mc O Rc
A: The layer of liquid asphalt applied between two paved layers is Rc. Here, Rc stands for rapid…
Q: A rigid pavement is on a highway with two lanes in one direction, and the pavement is conservatively…
A: Given data Thickness of Pavement,D=11 inModulus of Elasticity.Ec=5×106 kb/in2Modulus of Rupture ,…
Q: Which statement is TRUE about modified asphalts? O There is only one method of modifying asphalt. O…
A: Brief Concept Introduction- Modified Asphalts- These are different than the normal asphalt. They…
Q: For a PG 64-22 binder, 64 represents is the minimum expected pavement temperature. and -22…
A: Answer: c) Average 7-day maximum pavement Temperature, °C
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: 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: The elastic modulus of mid-range aggregate asphalt pavement is 480 MPa while its subgrade has an…
A: Given: Elastic modulus of pavement: 480 MPa Elastic modulus of subgrade : 55 Mpa To calculate:…
Q: A two layer proposed pavement structure is comprised of a layer of asphalt concrete surface layer…
A: Given data Asphalt concrete surface layer with a coefficient a1 is 0.43 Aggregate base layer with a…
Q: The wearing course of an asphalt pavement is compacted to density of 2.395 g/cm3 using 5.5% asphalt…
A: Given:- The density of the asphalt pavement = 2.395 g/cm3 The percentage of the asphalt content =…
Q: asphalt The wearing coarse of an asphalt pavement is compacted to density of 2.395gm/cm³…
A: Due to unavailability of math type i am providing Handwritten solution
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- 4- Describe the characteristics and functions of the top layer in a pavement system.QUESTION 4 Normally, a flexible pavement contains: surface layer+base layer surface layer+subgrade layer surface layer+base layer+subgrade layer base layer+subgrade layer QUESTION 5 The joint spacings of the jointed plain concrete pavement are between O no joint is needed in the JPCP. O 300-700 ft O 30-100 ft 15-30 ftShow complete solution and clear explanation thank you A flexible pavement having a thickness of 46mm carries a static wheel load of W. The circular contact has an equivalent radius of 150mm. If the load W is assumed to be transmitted across a wide are of subgrade at an angle of 45 degrees compute the value of the wheel load W if the bearing stress of the base is 0.42 MPa
- One of the unbound pavement layer road base materials is “Dry-bound Macadam”. When is this material suitable for use? Describe its construction process.A concrete pavement has 7-in (203 mm) thich, A dowel diameter is: Select one: a. 5/8 in b. 1 in c. 7/8 in d. 3/4 inA rigid pavement is on a highway with two lanes in one direction, and the pavement is conservatively designed. The pavement has an 11-inch slab with a modulus of elasticity of 5,000.000 lb/in2 and a concrete modulus of rupture of 700 lb/in2, and it is on a soil with a CBR of 25. The design drainage coefficient is 1.0, the overall standard deviation is 0.3, and the load transfer coefficient is 3.0. The pavement was designed to last 20 years (initial PSI of 4.7 and a final PSI of 2.5) with 95% reliability carrying trucks with one 18-kip single axle and one 28-kip tandem axle. However, after the pavement was designed, one more lane was added in the design direction (conservative design still used), and the weight limits on the trucks were increased to a 20-kip single and a 34-kip tandem axle (the slab thickness was unchanged from the original two-lane design with lighter trucks). If climate change has caused the drainage coefficient to drop to 0.8, how long will the pavement last with the…
- A rigid pavement is on a highway with two lanes in one direction, and the pavement is conservatively designed. The pavement has an 11-inch slab with a modulus of elasticity of 5,000,000 lb/in2 and a concrete modulus of rupture of 700 lb/in2, and it is on a soil with a CBR of 25. The design drainage coefficient is 1.0, the overall standard deviation is 0.3, and the load transfer coefficient is 3.0. The pavement was designed to last 20 years (initial PSI of 4.7 and a final PSI of 2.5) with 95% reliability carrying trucks with one 18-kip single axle and one 28-kip tandem axle. However, after the pavement was designed, one more lane was added in the design direction (conservative design still used), and the weight limits on the trucks were increased to a 20-kip single and a 34-kip tandem axle (the slab thickness was unchanged from the original two-lane design with lighter trucks). If climate change has caused the drainage coefficient to drop to 0.8, how long will the pavement last with the…3) Differentiate function of bound and unbound layer of flexible pavement.Pls answer w/ complete solution. Asap (Transportation Engineering) Determine the thickness base and subgrade of flexible pavement if the wheel load is 90 kN and has wheel contact area of 88075 sq. mm.. Strength capacity of base is 0.35 MPa and 0.15 MPa for Subgrade.
- Subject: Transportation Engineering An asphalt pavement carries a static wheel load of 125 kN. The circular contact radius of the tire is 180 mm and the transmitted load is distributed across a wide area of subgrade at an angle of 47°. The subgrade bearing value is 0.30 MPa while that of the base is 0.60 MPa. Design the thickness of the pavement and that of the base ? Please give me right solution.. urgenttttttttt help me Thank youA flexible pavement has a 210 mm hot-mix asphalt “HMA” wearing surface, a 300 mm base (MG-20), and a 500 mm subbase (MG-112). The pavement was designed with 95% reliability, an overall standard deviation So of 0.45, and a APSI of 1.75 (a TSI of 2.5). The drainage coefficient is 0.8 for the base and subbase. The materials properties are as follows: - = Resilient modulus of HMA 2 894 MPa (or 420 000 psi); Resilient modulus of base (MG-20) = 169 MPa (or 24 500 psi); Resilient modulus of subbase (MG-112) = 74 MPa (or 10 700 psi); Effective roadbed soil resilient modulus = 36 MPa (or 5 200 psi). How many 18-kip (80-KN) single-axle loads can be carried before the pavement reaches its TSI (terminal serviceability index).A flexible pavement is constructed with 3 inches of hot-mix asphalt (HMA) wearingsurface, 6 inches of emulsion/aggregate-bituminous base, and 6 inches of crushedstone subbase. The subgrade has a soil resilient modulus of 8,000 lb/in2 , and M2 andM3 are equal to 1.0 for the materials in the pavement structure. The overall standarddeviation is 0.5, the initial PSI is 4.5, and the TSI is 2.5. The daily traffic has 1080 20-kipsingle axles, 400 24-kip single axles, and 680 40-kip tandem axles. How many yearswould you estimate this pavement would last (how long before its PSI drops below aTSI of 2.5) if you wanted to be 90% confident that your estimate was not too high,and if you wanted to be 99% confident that your estimate was not too high?