Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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Transcribed Image Text:Please solve this question in step by step in hand- It is transportation-2 Civil engineering
Question-3
The Marshall method was used to design an asphalt concrete mixture. asphalt with a specific
gravity (Gb) of 1.031 was used. Three stockpiles of aggregates were used to manufacture this
asphalt concrete mixture. The theoretical maximum specific gravity of the mix (Gmm) at asphalt
content of 5.5 % was 2.489. Trial mixes were made with average results as shown in the
following table:
Bulk Specific
Gravity of
compacted specimen
Asphalt content (P,)
(% by weight of
mix)
( "2)
2.358
4.0
4.5
5.0
2.375
2.392
5.5
2.402
6.0
2.416
Estimate the VTM (i.e., Voids in total mix) at an asphalt content at 4.0%, 4.5%, 5.0%, 5.5% and
6%.
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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) الarrow_forwardHow can we improve Moisture Susceptibility of asphalt?arrow_forward17. In the Asphalt Institute flexible pavement design approach, Where are the critical stress and strain locations checked?a. Top of the asphalt concrete layerb. Middle of the asphalt concrete layerc. Bottom of the asphalt concrete layerd. Bottom of the asphalt concrete layer and top of the subgradearrow_forward
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