liquid asphalt containing two petroleum-based 1. materials
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: Softening point test 1- Is the point of softening equal to the melting point? 2- If the…
A: Queries: Is the softening point equal to the melting point. If the softening point of asphalt is…
Q: 11- The temperature range which is used for the mixing process of asphalt with aggregate in the…
A: 11. (b) is the correct answer. 12. (b) is the correct answer
Q: What are the ingredients of asphalt cutbacks? What are the ingredients of asphalt emulsions? Name…
A:
Q: State four different asphalt modifiers that can be added to asphalt or asphalt mixtures, and…
A: Type of asphalt modifiers: When we discuss about the basic ingredients, paving asphalt couldn’t be…
Q: Explain and differentiate asphalt, bitumen and tar.
A:
Q: Asphalt materials are recognized by the properties associated with the terms “setting”and “curing”.…
A: "Setting" - setting is subclassified into initial setting and final setting . Initial setting is…
Q: Binder grade of asphalt selected for a highway construction based on the temperature records found…
A: Binder grade of asphalt PG70-16.
Q: Explain in details the properties and the common composition of Asphalt for road work.
A: The asphalt which was used for road work must be designed, produced and then placed in order to…
Q: An asphalt concrete specimen has the following properties:Asphalt content=5.3% by total weight of…
A:
Q: A load of asphalt weights 254 lbs. and occupies a volume of 220.0 L. What is the density of this…
A: Data Given: Weight of asphalt = 254 lbs Volume occupied by asphalt = 220.0 L Asked: Density of…
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: What are asphalt mixtures ?, What are the properties of the mixture ?, What are the design of…
A: Asphalt Mixtures : 1. The asphalt mixture is a typically temperature-sensitive material. Its…
Q: Dose the time of loading effect on the asphalt behaviour? Explain. What is the RC-70 meaning? Where…
A: Solution: 1. Yes, the time of loading will affect asphalt behavior. There is an analysis which was…
Q: 5 (a) Discuss briefly the following with their uses. i. Smart materials ii. Bitumen and Asphalt
A: i.) Smart Materials Smart construction materials, which also known as intelligent materials, active…
Q: If the absorbed asphalt t by aggregate =0.25%,and effective asphalt =5.75%. The total asphalt…
A:
Q: 7. Match the right asphalt material testing 1. The result of this test indicates the extent to 1.…
A: 1) Water content test:- Among the most significant tests for asphalt is indeed the water content…
Q: An asphalt mixture has a bitumen content of 5.7% and has been compacted to a density of 2360kg/m3 .…
A:
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 following statements are not true, EXCEPT: * Batch plant produces lower quality asphalt compared…
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Q: a) You have to repair the wearing surface during wet weather using asphalt which can be used without…
A: Solution: Explanation:
Q: In specific gravity test, if D= 79g, B= 77g, C=75g, what is the unit weight of the used asphalt in…
A: It is required to determine the specific gravity. Gs=C-AB-A-D-C Here, A is the mass of pycnometer, B…
Q: 4. Durability is the study of deformation and flow of the asphalt materials.
A: Durability is the ability to withstand wear, pressure, or damage.
Q: An asphalt concrete specimen has the following properties:asphalt content = 5.9% by total weight of…
A: Given: The asphalt content is 5.9%. The bulk specific gravity of the mix is 2.457. The maximum…
Q: Please Name other tests made on asphalt and their purpose. (basis: lab experiment on PENETRATION…
A: There are many tests which are performed on asphalt (bituminous material) for different kind of…
Q: An asphalt concrete mix has a density of 2410 kg/m³ and an asphalt content of 5.5%. The asphalt…
A: The given data is: Density=2410 kg/m3 Asphalt content=5.5% Asphalt absorption=0.7% Relative gravity…
Q: Briefly discuss the chemical composition of asphalt.
A: Asphalt : Asphalt is a black or brown petroleum-like substance with a viscous liquid to glassy solid…
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: Problem: A test and process is also conducted to determine the asphalt content of the emulsified…
A: Given data- mass of sample=300 gmmass of iron still=4008 gmmass of iron still and sample after…
Q: Make a comparison between Cutback ?Asphalt and Asphalt emulsion
A: This Question comes from Construction material engineering. This question asked about the comparison…
Q: Quèstion 22 If TSR (Tensile Strength Ratio) is less than 0.8: O the asphalt concrete mix is not…
A: If the tensile strength ratio is less then it affects the resistance of asphalt concrete mix against…
Q: From the table above, which of the sample will require the least amount binder for asphalt?
A: Asphalt binder is referred to as the cement binder or binding material that is used to bind…
Q: Dense graded asphalt can reduce the effect of headlight reflection. * True O False
A:
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: Make a description process about asphalt road
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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: Answer the question false or. true oxidized asphalt are not used commonly in highway construction
A: Answer:- False oxidized asphalt are most commonly used in highway construction
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: 6. What are the elements that affect the value of flow and stability? 7. How can we obtain the best…
A: Stability value- stability is defined as maximum load carried by specimen (preparation under…
Q: discuss briefly the advantage of a "liquid asphalt" over the "solid asphalt".
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Q: Roadbase can be constructed using the following materials, except; Crushed aggregate Sand Cement…
A:
Q: Enumerate the desirable and define the desirable properties of sand and aggregate as pavement…
A: Desirable properties are pavement materials are Strength Hardness Toughness Shape of Aggregates…
Q: What are the organic substances in the production of warm asphalt? Please explain with reference
A: Warm mix Asphalt is a type of asphalt whose production and application is done at a temperature of…
Q: Answer the void ..................., one of the fractions component of asphalt , can be…
A: Bituminous Asphalt consists of compounds of - - hydrogenand carbon -Minor proportions of nitrogen,…
Q: Two types of asphalt are available in liquid form: one is cutback asphalt and the other is…
A: In its most basic form, cutback asphalt is a mixture of asphalt concrete and hydrocarbon fluid.…
Q: if the absorbed asphalt by aggregate =0.25%, and effective asphalt =5.75%. the total asphalt content…
A:
Q: A highway of 85 Km length, it is required to be paved by 4 cm wearing course. The width of this…
A: Final Answer: Shown in table
Q: Why are the asphalt emulsions preferred over asphalt cutbac
A: Asphalt emulsions is a suspension of asphalt in water by utilizing an emulsifying specialist which…
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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- Q4) Determine the PG grade of the asphalt whose results are shown in the table below? Show all calculations and comparisons with Superpave requirements. Test Results Original Properties Flash point temperature, °C 278 Viscosity @ 135 °C 0.490 Pa.s Dynamic shear Rheometer @ 82 °C @ 76 °C G* = 0.82 kPa, 8 = 68° G* = 1.00 kPa, 8 = 64° @ 70 °C G* = 1.80 kPa, 8 = 60° Rolling Thin Film Oven Aged Binder Mass loss, % 0.63 Dynamic shear Rheometer @ 82 °C @ 76 °C G* = 1.60 kPa, 8 = 65° G* = 2.20 kPa, ô = 62° @ 70 °C G* = 3.50 kPa, 8 = 58° Rolling Thin Film Oven and PAV Aged Binder Dynamic shear Rheometer @ 34 °C @ 31 °C @ 28 °C G* = 2500 kPa, 8 = 60° G* = 3700 kPa, 8 = 58° G* = 4850 kPa, 8 = 56° Bending Beam Rheometer @ -6 °C, 60-sec @ -12 °C, 60-sec @ -18 °C, 60-sec S = 255 MPa, m = 0.329 S = 290 MPa, m = 0.305 S = 318 MPa, m = 0.277Problem #1 The following figure shows the results from the dynamic modulus test for asphalt mixtures. The specimen is 4" in diameter and 6" in height. The gauge length for the axial LVDT is 4". Time lag is 0.25s. Find |E*I, and phase angle . Axial force(lbf) 65 60 40 20 0 -20 -40 -65 0 Dynamic modulus test result (gauge length = 4") 0.5 Time (second) 1 0.0010 0.0009 0.0006 0.0003 0 force (lbf) disp (in.) -0.0003 -0.0006 -0.0009 -0.0010 1.5 Axial displacement(in) 4"Q2) The following results were obtained from testing a certain asphalt binder: RTFO aged PAV Original Asphalt aged asphalt asphalt DSR G° (kPa) 8 (C) 0.98 2.1 6000 75 70 60 BBR S@ 60-sec (MPa) | 300 M@ 60-sec 450 650 0.6 0.5 0.4 DTT Failure Strain (%) 2.5 % 2 % 1.2% Determine if the asphalt meets the Superpave specification requirements to resist the following distresses: (a) Rutting (b) Fatigue cracking (c) Low temperature cracking
- An aggregate blend is composed of 59% coarse aggregate by weight (Sp. Gr.2.635), 36% fine aggregate (Sp. Gr. 2.710), and 5% filler (Sp. Gr. 2.748). Thecompacted specimen contains 6% asphalt binder (Sp. Gr. 1.088) by weight oftotal mix and has a bulk density of 2305 kg/m3 . Ignoring absorption, computethe percent voids in total mix, percent voids in mineral aggregate, and thepercent voids filled with asphalt.Q3) You are required to determine if a certain asphalt can be graded as PG 58 - 28. What agingequipment and testing temperatures should use for the following tests? Explain the rational behind selecting the above testing temperatures.a) Dynamic Shear Rheometer for rutting analysis.b) Dynamic Shear Rheometer for fatigue cracking analysis.c) Bending Beam Rheometer for low temperature cracking analysis.d) Direct Tension Tester for low temperature cracking analysis.which of the following aggregate gradation * is the most used in asphalt mixes none of these O dense grade mix gap graded mixO open grade mix the max Gmix 2.5 , % asphalt 6%, G for * asphalt 1.01, so the eff Gagg will be 2.569 2.65 O 2.67 O 2.76
- Pane SHORT ANSWER List how high temperature failure of asphalt pavement occurs. Define oxidation in asphalt binder. Explain how asphalt pavement is produced at a drum mixer plant (HMA Production)highway engineering labartory name test Standard Test Method for Ductility of Bituminous Materials same quation reports 4. Importance of adding “NaCl2” salt .5. What is the reason of not coating the clips inside surface of ductility mold by a lubricant?6. Draw the mold of the specimen.Please Name other tests made on asphalt and their purpose. (basis: lab experiment on PENETRATION TEST OF BITUMINOUS MATERIAL)
- TELEGRAM 2022 من 2025 رجوع ) 10:58 B 4 Q1C In a Marshall test, the percentage of asphalt binder by total weight of asphalt mixture is 4.8%. The bulk specifc gravity of aggregate (G)-2.655, the specifc gravity of asphalt binder (G)-1.020, and the density of water (y)-1.000 g/cm'. If the effective asphalt binder content (Pb) is 2.50% by total weight of mixture, and the voids in total mixture (VTM) is 4.0% by total volume of mixture, determine the following properties: a. The bulk specifc gravity of the compacted mixture (3) b. The absorbed asphalt (P) c. The voids in mineral aggregate (VMA) d. The voids filled with asphalt (VFA) R محمد اليوم عند AM 10:57An asphalt sample which is claimed to be AC- 20 is tested by an agency. Which test result will reject the sample O Viscosity at 60•C on original sample = 1850 Poise Ductility at 25C on TFO aged sample = 27 cm Penetration at 25 •C = 51 O Viscosity at 60 C on TFO aged sample = 11250 PoiseQ. 3 a) Distinguish clearly between hot-mix asphalt and warm-mix asphalt. Why is the latter set to become the mix of the future in asphalt pavement works? b) Explain why asphalt concrete samples from the hot-mix plant are taken for compaction in the laboratory during asphalt overlay construction. c) The following data was taken from a laboratory work sheet on the design of asphalt concrete by the Superpave procedure for a selected aggregate structure: Trial Mix 1 %Gmm@Ndegn=96%, Qam=2470kg/m Trial Mix 2 P.=5.0%, Gmb@Nasgn=2.305 Based on the data, determine the following: i. P, of Mix 1 11. VMA of Mix 1 111. Gmm of Mix 2 Take Ga =2.65, G=2.69, for the aggregates and G,=1.02 for the bitumen used.