The Marshall method was used to design an asphalt concrete mixture. A PG 64-22asphalt cement with a specific gravity (Gp) of 1.031 was used. The mixture containsa 9.5 mm nominal maximum particle size aggregate with a bulk specific gravity (Gab)of 2.696. The theoretical maximum specific gravity of the mix (Gmm) at asphalt con-tent of 5.0% is 2.470. Trial mixes were made with average results as shown in thefollowing table:Asphalt Content (P.)(% by Weight of Mix)Bulk SpecificGravity (Gmb)CorrectedStability (kN)Flow (0.25 mm)4.02.3606.34.52.3786.7105.02.3955.4125.52.4055.1156.02.4154.722Determine the design asphalt content using the Asphalt Institute design criteria formedium traffic (Table 9.15). Assume a design air void content of 4% when usingTable 9.16.

Specific gravityGb=1.031,Mix particle size=9.5 mm,Bulk specific gravity(Gsb)=2.696,Theoretical…

Answered: The Marshall method was used to design…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

HIGHWAY ENGINEERINGAn asphaltic concrete layer is compacted to density 2.350 gm/cm3. The asphalt (Gs = 1.03) content is 6 % by weight of total mix, bulk GA of combined aggregate is 2.650, and the absorbed asphalt by weight of aggregate is 1%. Determine % air voids in total mix (V.T.M), voids in mineral aggregate (V.M.A), and voids filled with asphalt (V.F.A).
Answer the question false or true Correspondence in the degrees of penetration between several types of solid asphalt at a temperature of 25 degrees does not mean complete compatibility between these types, as the behavior may differ at high temperatures and at lower temperatures
None
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
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
Define temperature susceptibility in Asphalt producrion.
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
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.
I need the answer as soon as possible
41
choose the correct answer Asphalt concrete mix consisting of *a-Asphalt, fine aggregate and waterb-Asphalt, rough aggregate and waterc-Cement, asphalt and waterd-Other than that

Recommended textbooks for you

Structural Analysis

Civil Engineering

ISBN:

9781337630931

Author:

KASSIMALI, Aslam.

Publisher:

Cengage,

Structural Analysis (10th Edition)

Civil Engineering

ISBN:

9780134610672

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Principles of Foundation Engineering (MindTap Cou…

Civil Engineering

ISBN:

9781337705028

Author:

Braja M. Das, Nagaratnam Sivakugan

Publisher:

Cengage Learning

Structural Analysis

Civil Engineering

ISBN:

9781337630931

Author:

KASSIMALI, Aslam.

Publisher:

Cengage,

Structural Analysis (10th Edition)

Civil Engineering

ISBN:

9780134610672

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Principles of Foundation Engineering (MindTap Cou…

Civil Engineering

ISBN:

9781337705028

Author:

Braja M. Das, Nagaratnam Sivakugan

Publisher:

Cengage Learning

Fundamentals of Structural Analysis

Civil Engineering

ISBN:

9780073398006

Author:

Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning

Publisher:

McGraw-Hill Education

Sustainable Energy

Civil Engineering

ISBN:

9781337551663

Author:

DUNLAP, Richard A.

Publisher:

Cengage,

Traffic and Highway Engineering

Civil Engineering

ISBN:

9781305156241

Author:

Garber, Nicholas J.

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS