(a) What is SuperPave Method of mix design? What are the main advantages and disadvantage of SuperPave, Hveem, and Marshall method of mix design? (b) What is SuperPave Gyratory Compactor (SGC)? How SGC simulate actual field conditions in the laboratory? (c) SuperPave offers futuristic approach for the selection of binder to be used in asphalt pavements. Explain with examples?

(a) What is SuperPave Method of mix design? What are the main advantages and disadvantage of SuperPave, Hveem, and Marshall method of mix design? (b) What is SuperPave Gyratory Compactor (SGC)? How SGC simulate actual field conditions in the laboratory? (c) SuperPave offers futuristic approach for the selection of binder to be used in asphalt pavements. Explain with examples?

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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Answer the void ............... is one of aggregate properties that have a significant effect in improving the interconnect between an aggregate particle and asphalt binder
Q. 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.
Problem No: 20%) 1. In a Marshall test, the percentage of asphalt binder by total weight of aggregate is 5.3%. The bulk specific gravity of aggregate (G) -2.582, the specific gravity of asphalt binder (G)=1.000, and the density of water (7)=1.000 g/cm If the voids filled with asphalt (VFA) is 70.0% and the effective asphalt binder (P) is 4.0% by total weight of mixture, determine the following properties(10%); a. The absorbed asphalt binder (P). b. The bulk specific gravity of the compacted mixture (G) c. The voids in mineral aggregate (VMA) d. The voids in total mixture (VTM). e. The theoretical maximum specific gravity of the loose mixture (G). f. The effective specific gravity of the aggregate (G). atical specific gravity of asphalt pavement mixture necessary for Nation 91% and Marshall Density
What are the technical properties of Petroleum Asphalt? please quickly thanks !
Q2: Complete the following statements: 1- Weight of aggregates in Marshal sample is gm. 2- Standard height of Marshall sample is .......... mm. 3- Marshall hammer drop from ............ inch. 4- Maximum Gm is the unit weight of asphalt sample without 5- Asphalt and aggregates are mixing at 160 °C with tolerance of ............... °C.
Explain why asphalt concrete samples from the hot-mix plant are taken for compaction in the laboratory during asphalt overlay construction
I need the answer as soon as possible
BMD revolves around the concept of balancing rutting and cracking of the mix. The figure below applies to all three different BMD methodologies. Using your own words explain all different components of this figure, how BMD is achieved, and what different tests and parameters are used to assess the asphalt mixes cracking and rutting performance. Submit your solution in a word file (maximum number of words allowed: 800) Cracking Durable Min Max Rinder Content Stable Rutting
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"
discuss BRIEFLY the effects of at least 10 Deficiencies in Asphalt Mix
A highway of 85 Km length, it is required to be paved by 4 cm wearing course. The width of this highway is 12 m. For requirement of the asphalt concrete mix plant manager, determine the quantity by weight for each type of aggregate and asphalt if the specific gravity of asphalt concrete mixture is 2.35 and the optimum asphalt content = 5.3%? • Details of aggregates Sieve Size (in) % Passing by Weight % Retained 3/4 100 0 1/2 95 5 3/8 83 12 1/4 59 24 No. 4 43 16 No. 30 13 30 No. 200 7 6 Pan 7