Traffic and Highway Engineering
5th Edition
ISBN: 9781305156241
Author: Garber, Nicholas J.
Publisher: Cengage Learning
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Chapter 18, Problem 9P
To determine
The effective specific gravity of the mixture.
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The table below lists data used in obtaining a mix design for an asphalt paving mixture. If the maximum specific gravity of the mixture is 2.41 and the bulk specific gravity is 2.35, determine
1. The bulk specific gravity of aggregate in the mix
2. The asphalt absorbed
3. The effective asphalt content of the paving mixture
4. The percent voids in the mineral aggregate VMA
The table below lists data used in obtaining a mix design for an asphalt paving mixture. If the maximum specific gravity of the mixture is 2.41 and the bulk specific gravity is 2.35, Determine:(a) the bulk specific gravity of aggregates in the mix(b) the asphalt absorbed(c) the effective asphalt content of the paving mixture (d) the percent voids in the mineral aggregate VMA.
An asphalt concrete mixture includes 94% aggregate by weight. The specificgravities of aggregate and asphalt are 2.65 and 1.0, respectively. If the bulk density of the mix is 2355 kg/m3 , what is the percent voids in the total mix?
Chapter 18 Solutions
Traffic and Highway Engineering
Ch. 18 - Prob. 1PCh. 18 - Prob. 2PCh. 18 - Prob. 3PCh. 18 - Prob. 4PCh. 18 - Given the specifications for an asphaltic concrete...Ch. 18 - Given the particle size distributions of two...Ch. 18 - Given the particle size distributions of two...Ch. 18 - Given four different types of aggregates to be...Ch. 18 - Prob. 9PCh. 18 - Prob. 10P
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- Given four different types of aggregates to be used to produce a blended aggregate for use in the manufacture of asphaltic concrete, determine the bulk specific gravity of the aggregate mix.arrow_forwardThe table below lists data used in obtaining a mix design for an asphalt paving mixture. If themaximum specific gravity of the mixture is 2.41 and the bulk specific gravity is 2.35,Determine:(a) the bulk specific gravity of aggregates in the mix(b) the asphalt absorbed (c) the effective asphalt content of the paving mixture(d) the percent voids in the mineral aggregate VMAarrow_forwardAs part of mix design, a laboratory-compacted cylindrical asphalt specimenis weighed for determination of bulk-specific gravity. The following numbersare obtained:Dry mass in air = 1264.7 gramsMass when submerged in water = 723.9 gMass of saturated surface dry (SSD) = 1271.9 ga. What is the bulk-specific gravity of the compacted specimen (Gmb)?b. If the maximum theoretical specific gravity of the specimen (Gmm) is2.531, what would be the air void content of the specimen in percent?arrow_forward
- As part of mix design, a laboratory-compacted cylindrical asphalt specimen is weighed for determination of bulk-specific gravity. The following numbers are obtained:Dry mass in air = 1264.7 gramsMass when submerged in water = 723.9 gMass of saturated surface dry (SSD) = 1271.9 ga. What is the bulk-specific gravity of the compacted specimen (Gmb)?b. If the maximum theoretical specific gravity of the specimen (Gmm) is 2.531, what would be the air void content of the specimen in percent?arrow_forwardAn asphalt concrete mixture includes 94% aggregate by weight. The specific gravities of aggregate and asphalt are 2.65 and 1.0, respectively. If the bulk density of the mix is 147 pcf, what is the percent voids in the total mix?arrow_forwardTable shows the grain size distribution for two aggregates and the specification limits for an asphalt concrete. Determine the blend proportion required to meet the specification and the gradations of the blend. On a semilog gradation graph, plot the gradations of aggregate A, aggregate B, the selected blend,and the specification limits.arrow_forward
- A compacted asphalt concrete specimen has the following properties:a. Asphalt content = 5% by total weight of the mixb. Bulk specific gravity of the mix = 2.500c. Theoretical maximum specific gravity = 2.610d. Bulk specific gravity of the aggregate = 2.725 Ignoring absorption, compute the percents VTM, VMA, and VFA.arrow_forwardTable 3 lists data used in obtaining a mix design for an asphalt paving mixture. If the maximumspecific gravity of the mixture is 2.41 and the bulk specific gravity is 2.35, determine: (a) thebulk specific gravity of aggregates in the paving mixture, (b) the asphalt absorbed, (c) theeffective asphalt content of the paving mixture, and (d) the percent voids in the mineralaggregate VMAarrow_forwardTable shows the grain size distribution for two aggregates and the specification limits for an asphalt concrete. Determine the blend proportion requiredto meet the specification and the gradations of the blend. On a semilog gradation graph, plot the gradations of aggregate A, aggregate B, the selected blend,and the specification limits.carrow_forward
- The table below lists data used in obtaining a mix design for an asphalt paving mixture. If the maximum specific gravity of the mixture is 2.41 and the bulk specific gravity is 2.35, determine: (a) the bulk specific gravity of aggregates in the mix (b) the asphalt absorbed (c) the effective asphalt content of the paving mixture (d) the percent voids in the mineral aggregate VMA. Material Specific Gravity Mix Proportion Asphalt cement 1.02 6.4 Coarse aggregate 2.51 52.35 Fine aggregate 2.74 33.45 Mineral filler 2.69 7.8 (Highway & Engineering Traffic Engineering, SI unit, N. Garber)arrow_forwardAn asphalt concrete mixture includes 94% aggregate by weight. The specific gravities of aggregate and asphalt are 2.65 and 1.0, respectively. If the bulk den-sity of the mix is 2355 kg/m3 , what is the percent voids in the total mix?arrow_forwarddiscuss BRIEFLY the effects of at least 10 Deficiencies in Asphalt Mixarrow_forward
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