An aggregate blend for an asphalt concrete mixture has the following composition byweight:Coarse aggregateFine aggregate65% Specific (bulk) gravity of coarse agg.35% Specific (bulk) gravity of fine agg.= 2.70= 2.65This aggregate blend was mixed with asphalt cement (G, =1.03) at an asphalt content of5.5% by weight of mixture (ignore absorbed asphalt). A volumetric analysis was conductedand it was determined that the %VMA for the mix was 15.5%. Determine Gmb Of themixture.

Given: The composition of coarse aggregate is 65%. The bulk specific gravity of coarse aggregate is…

An aggregate blend for an asphalt concrete mixture has the following composition by weight: Coarse aggregate Fine aggregate 65% Specific (bulk) gravity of coarse agg. 35% Specific (bulk) gravity of fine agg. = 2.70 = 2.65 %3D This aggregate blend was mixed with asphalt cement (G =1.03) at an asphalt content of 5.5% by weight of mixture (ignore absorbed asphalt). A volumetric analysis was conducted and it was determined that the %VMA for the mix was 15.5%. Determine Gmb of the mixture.

An aggregate blend for an asphalt concrete mixture has the following composition by weight: Coarse aggregate Fine aggregate 65% Specific (bulk) gravity of coarse agg. 35% Specific (bulk) gravity of fine agg. = 2.70 = 2.65 %3D This aggregate blend was mixed with asphalt cement (G =1.03) at an asphalt content of 5.5% by weight of mixture (ignore absorbed asphalt). A volumetric analysis was conducted and it was determined that the %VMA for the mix was 15.5%. Determine Gmb of the mixture.

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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Concept explainers

Asphalt Binders and Mixtures

Asphalt binders are subsidiary products procured during the refining process of petroleum while manufacturing gasoline, diesel, and similar petroleum products. Asphalt binders are obtained from the residue that remains after the distillation of petroleum, this residue is further subjected to steam distillation and oxidation to remove the traces of gas oil present in the residue. Certain additives or modifiers are also added to asphalt binders to alter them to suit different applications.

Question

An aggregate blend for an asphalt concrete mixture has the following composition by
weight:
Coarse aggregate
Fine aggregate
65% Specific (bulk) gravity of coarse agg.
35% Specific (bulk) gravity of fine agg.
= 2.70
= 2.65
This aggregate blend was mixed with asphalt cement (G, =1.03) at an asphalt content of
5.5% by weight of mixture (ignore absorbed asphalt). A volumetric analysis was conducted
and it was determined that the %VMA for the mix was 15.5%. Determine Gmb Of the
mixture.

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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
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As a materials engineer working for a highway department, what standard PG asphalt binder grade would you specify for each of the conditions shown in the table below. Show all calculations.
An asphalt binder is intended to be used in a climate with maximum 7-day pavement temperature of 73 •C and minimum pavement temperature of -18•C. Following is the SHRP tests results on the asphalt binder. This asphalt meet the requirements for original binder, _meet the requirements for RTFO aging and meet the requirements for PAV aging Original Binder DSR at 76 °C: G*=0.96 kPa, ô=65• RTFO Aged Binder Mass lost: 0.55 % DSR at 76 °C :G*=1.72 kPa, ô=54• PAV Aged Binder DSR at 31 •C : G*=8520 kPa, ô=37• BBR at -12 °C and 60 sec : Stiffness = 289 MPa , m-value = 0.281 DTT at -12 C : 2.2% does not, does not, does no does not, does, does not does not, does, does does, does, does not
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