a) You have to repair the wearing surface during wet weather using asphalt which can beused without additional heat. Now, which type of asphalt will you prefer? Write shortnote on such type of asphalt.b) What is macadam road? Differentiate between water-bound macadam and bituminousmacadam.c) Briefly describe one of the special soil-related problems in many areas of the UnitedStates and what kind of preventive measures can be taken for minimizing suchproblem.PART B

Answered: a) You have to repair the wearing…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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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 10:57
2210 kg of aggregate with bulk specific gravity of 2.653 is mixed with 146 kg of asphalt with specific gravity of 1.02 to make 1 cubic meter of compacted asphalt mix. What is the asphalt content of this mix? 5.8% 6.0% 6.2% O 5.6%
Distinguish clearly between hot-mix asphalt and warm-mix asphalt. Why is the latter set tobecome the mix of the future in asphalt pavement works?
Q1A In a Marshall test, the percentage of asphalt binder by total weight of aggregate is 5.3%. The bulk specifc gravity of aggregate (G)-2.582, the specifc gravity of asphalt binder (G)=1.000, and the density of water 3 (Yw)=1.000 g/cm. If the voids flled with asphalt (VFA) is 70.0% and the effective asphalt binder (Pbe) is 4.0% by total weight of mixture, determine the following properties: a. The absorbed asphalt binder (Pba) b. The bulk specifc gravity of the compacted mixture (Gmb) c. The voids in mineral aggregate (VMA) d. The voids in total mixture (VTM) e. The theoretical maximum specifc gravity of the loose mixture (Gmm) The effective specifc gravity of the aggregate (Gse) ال
A pavement consists of 5 inches of asphalt underlain by a crushed stone based course. There is no sub base. The asphalt has an elastic modulus of 350,000 psi at room temperature and the base course has a CBR of 70. Determine the thickness of the crushed stone base needed to reach an SN of 2.85. Assume the base course is saturated 5% of the time and drains within a day.
Problem No. 1A flexible pavement for an urban interstate highway is to be designed using the AASHTOmethod to carry a design ESAL of 3 x 106. It is estimated that it takes about a week for water tobe drained from within the pavement and the pavement structure will be exposed to moisturelevels approaching saturation for 30% of the time. The following additional information is available: Elastic modulus of asphalt concrete = 450,000 psiResilient modulus of base material = 35,000 psiResilient modulus of subbase material = 15,000 psiCBR of subgrade material = 8(a) Consider designing the same pavement with only asphalt concrete and base layer (excluding subbase layer). Use the information provided in Problem 1. (b) Compare strengths and weaknesses of each design.
Problem #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"
(c) Two types of asphalt are available in liquid form: one is cutback asphalt and the other is emulsified asphalt. Explain the purpose of 'cutback' in liquid asphalts and list out 2 (two) types of liquid asphalt in the cutback category.
The wearing course of an asphalt pavement is compacted to density of 2.395 g/cm3 using 5.5% asphalt content by weight of total mix and specific gravity =1.04. Assuming that the absorbed asphalt equal to 0.8%by the weight of aggregate, and the bulk specific gravity of the aggregate is 2.66, determine if the compacted pavement is suitable for durability requirement or not?

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