Materials for Civil and Construction Engineers (4th Edition)
4th Edition
ISBN: 9780134320533
Author: Michael S. Mamlouk, John P. Zaniewski
Publisher: PEARSON
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Textbook Question
Chapter 9, Problem 9.34QP
The Marshall method of mix design has been widely used by many highway agencies.
- a. What are the steps of Marshall mix design?
- b. What parameters are calculated?
- c. Show the typical graphs that are plotted after tests are completed.
- d. What is the purpose of plotting these graphs?
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Table below shows the sieve analysis test result for aggregates A and B and the specification limits for an asphalt concrete. Determine the blend proportion required to meet the specification and the graduations of the blend. On a semi-log gradation graph, plot the gradations of aggregate A, aggregate B, the selected blend, and the specification limits in a same graph (you can use Excel sheets or you can draw the graphs on a semi-log attached to page 3 of this assignment).
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35-50
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Aggregate B
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Q: Discuss various equipment involved in Superpave Mix Design for measuring the performance of asphalt mixture with neat sketches.
Chapter 9 Solutions
Materials for Civil and Construction Engineers (4th Edition)
Ch. 9 - Prob. 9.1QPCh. 9 - Prob. 9.2QPCh. 9 - Prob. 9.3QPCh. 9 - Prob. 9.4QPCh. 9 - Prob. 9.5QPCh. 9 - Prob. 9.6QPCh. 9 - Prob. 9.7QPCh. 9 - What are the engineering applications of each of...Ch. 9 - Prob. 9.9QPCh. 9 - Prob. 9.10QP
Ch. 9 - Prob. 9.11QPCh. 9 - Prob. 9.12QPCh. 9 - Prob. 9.13QPCh. 9 - Prob. 9.14QPCh. 9 - Prob. 9.15QPCh. 9 - Prob. 9.16QPCh. 9 - Prob. 9.17QPCh. 9 - Prob. 9.18QPCh. 9 - What are the objectives of the asphalt concrete...Ch. 9 - Prob. 9.20QPCh. 9 - Prob. 9.21QPCh. 9 - Prob. 9.22QPCh. 9 - Prob. 9.23QPCh. 9 - Prob. 9.24QPCh. 9 - Prob. 9.25QPCh. 9 - An asphalt concrete mixture includes 94% aggregate...Ch. 9 - Prob. 9.27QPCh. 9 - Prob. 9.28QPCh. 9 - Prob. 9.29QPCh. 9 - Prob. 9.30QPCh. 9 - Based on the data shown in Table P9.31, select the...Ch. 9 - Based on the data in Table P9.32, determine the...Ch. 9 - Given the data in Table P9.33, select the blend...Ch. 9 - The Marshall method of mix design has been widely...Ch. 9 - Prob. 9.35QPCh. 9 - Prob. 9.36QPCh. 9 - Prob. 9.37QPCh. 9 - Prob. 9.38QPCh. 9 - Prob. 9.39QPCh. 9 - Prob. 9.40QPCh. 9 - Prob. 9.41QPCh. 9 - Prob. 9.42QPCh. 9 - Prob. 9.43QPCh. 9 - What is the purpose of adding fly ash to asphalt...Ch. 9 - Prob. 9.45QPCh. 9 - Prob. 9.47QPCh. 9 - Prob. 9.48QP
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- i need the answer quicklyarrow_forwardhighway laboratory Marshall Mix Design What are the elements that affect the value of flow and stability?arrow_forward1. Answer the following questions based on the practical work done in class: a) Based on the experiment done in class: Explain the nature of the concrete mix and state the type of slump observed. Explain what effects bleeding and settlement may have on a concrete mix. b) Explain what a concrete mix design is. c) What is a concrete road pavement? Where in civil engineering can we find the use of pavement roads. d) Use 2 pictures to show where concrete road pavements are used.arrow_forward
- A sieve analysis was conducted on a graded aggregate with a nominal maximum aggregate size of 20 mm. Th following data was obtained: Sieve size (mm) Mass retained (g) 37.5 0 26.5 19.0 9.5 4.75 2.36 Pan 80 120 800 1450 130 80 a) Find the mass passing and percentage passing on each sieve and fill in the table provided in the answer sheet. b) Fill in the upper and lower limits of the Australian Standard (AS2758) for this aggregate type. c) As per the AS2758, is the aggregate well-graded? Explain your answer. d) What should be done if the aggregate is poorly graded?arrow_forwardGiven the specifications for an asphaltic concrete mixture and the results of a sieve analysis, determine the proportion of different aggregates to obtain the required gradation. Coarse aggregates: 60% Fine aggregates: 35% Filler: 5%arrow_forwardIf needed assume the unit weight of water to be 62.4 lb/ft3 a) A HMAC sample has the following volumetric properties (i) VMA = 0.1865 ft3and (ii)Volume of air = 0.0452 ft3 Compute %VFA. b) A HMAC sample has 140 lbs of aggregate with a bulk specific gravity of 2.65 and aneffective specific gravity of 2.71. Based on this information the volume of the absorbedasphalt is ________________ft3A compacted sample of hot mix asphalt concrete sample has a unit weight of 135 lb/ft3.c) The sample has an asphalt content of 5% (by weight). Assume no absorbed asphalt.The bulk specific gravity of the aggregate is 2.65, and specific gravity for the asphaltcement is 1.05. Based on this information compute VMA for this mixture.arrow_forward
- Table P5.29 shows the grain size distribution for two aggregates and the specifi- cation limits for an asphalt concrete. Determine the blend proportion required to meet the specification and the gradations of the blend. On a semilog grada- tion graph, plot the gradations of aggregate A, aggregate B, the selected blend, and the specification limits. TABLE P5.29 Percent Passing Sieve Size, mm 19 12.5 9.5 4.75 2.36 0.60 0.30 0.15 0.075 Specification limits 100 80–100 70-90 50-70 35-50 18–29 13-23 8-16 4-10 Aggregate A 100 85 20 2 55 Aggregate B 100 100 100 85 67 45 32 19 11arrow_forwardi need the answer quicklyarrow_forwardQ#1: (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?arrow_forward
- What is the importance of aborption of aggregate to asphalt concrete? Answer in 3-5 sentences.arrow_forwardsir, please answer according to the topic. Q: Why Superpave method of mix design is preferred over the Asphalt Institute and Marshall method of mix design?arrow_forward(c) Asphalt concrete mixture of AC 14 will be used to construct the wearing course layer. The coarse aggregate, fine aggregate and filler are used as materials to produce the asphalt concrete mixture. The aggregate gradation will be blended to fulfill the gradation limit according to JKR standard specification as shown in Table Q1(c)(i). Based on this statement, conclude the result of sieve analysis test of blended aggregate as shown in Table Q1(c)(ii). I Table Q1(c)(i): Gradation specification for AC 14 mixture BS Sieve Size (mm) Percentage passing by weight 28.0 20.0 14.0 10.0 5.0 3.35 1.18 0.425 0.150 0.075 100 90-100 76-86 50-62 40-54 18-34 12-24 6-14 4-8 I Act Go toarrow_forward
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