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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Chapter 9, Problem 9.47QP
To determine
The most common polymer used for modifying asphalt cement and describe the interaction that occurs when asphalt and SBS are mixed.
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What is the most common polymer used for modifying asphalt cement? Briefly describe the interaction that occurs when asphalt and SBS are mixed.
What is the most common polymer used for modifying asphalt cement?
Several types of fillers, such as crushed fines, portland cement, lime, fly ash, and carbon black, can be added to asphalt concrete. Fillers are used to satisfy gradation requirements of materials passing the 0.075 mm sieve, increase stability, improve bond between aggregates and asphalt, or fill the voids and thus reduce the asphalt required.
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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- Why angular and rough aggregate is good for Asphalt concrete? Explain the answer by relating the texture to other properties of aggregate.arrow_forwardCalculate the ratio of radius of the relative stiffness for concrete pavements if the ratio of their thickness is 1.5.arrow_forwardA portland cement concrete mix requires mixing sand having a gradationfollowing the midpoint of the ASTM gradation band (Table 5.4) and gravelhaving a gradation following the midpoint of size number 467 of the ASTMgradation band (Table 5.5) at a ratio of 2:3 by weight. On a 0.45 power gradation chart, plot the gradations of the sand, gravel, and the blend. Is the gradation of the blend well graded? If not, what would you call it?arrow_forward
- What are the organic substances in the production of warm asphalt? Please explain with reference.arrow_forwardAnswer the question false or. true oxidized asphalt are not used commonly in highway constructionarrow_forward6. The following table shows the gradation of two aggregates A and B which are to be blended to produce an acceptable aggregate for use in manufacturing asphalt concrete for highway pavement construction. If the required limits of gradation for asphalt concrete are shown in the table below, determine a suitable ratio for blending aggregates A and B to obtain the acceptable combined aggregate. Sieve Size 3/4 in. (19 mm) 3/8 in. (9.5 mm) No. 4 (4.25 mm) No. 10 (2 mm) No. 40 (0.425 mm) No. 200 (0.075 mm) A 100 80 50 43 20 4 Percent Passing by Weight B 98 76 45 33 30 8 Required Mix 96 to 100 65 to 80 40 to 55 35 to 40 15 to 35 5 to 8arrow_forward
- why do we need to know the Specific Gravity and Absorption of Fine Aggregate, Surface Moisture of Fine Aggregate, and how it is important in concretearrow_forwardDesign the concrete mix according to the following conditions: Design environment Pavement, subjected to freezing Required design strength =21 MPa Slab thickness=300 mm Statistical data indicate a standard deviation of compressive strength of 1.7 MPa is expected (more than 30 samples) Only air entrainer is allowed Available materials: Air entertainer: Manufacturer specification is 9.5 ML /1% air/100kg cement Coarse aggregate: 50 mm nominal maximum size, crushed stone Bulk volume oven-dry specific gravity=2.57, absorption=2.8%, oven-dry rodded density=1922 kg/m³ Moisture content=1% Fine aggregate: Natural sand Bulk oven-dry specific gravity=2.54, absorption=3.4% Moisture content= 4.5% Fineness modulus=2.60 Cement: Type I, relative density=3.1arrow_forwardConcrete is required for a building foundation that is placed on a soil with high chloride content. The design calls for a minimum rebar spacing of 100 mm and a concrete cover of 75 mm. Which one of the following sizes is considered an acceptable nominal maximum size for aggregates? O A) 43 mm O B) 39 mm O9 28 mm O D) 49 mm A concrete pavement in Alberta will be exposed to freeze-thaw and de-icing salts during its service life. Which of the following exposure classes best describes the environmental conditions that the concrete will be exposed to? OA F-2 O B) A-2 O D) S-2 Strength of the normal weight concrete depends mainly on: OA) Strength of the aggregate O B) Mixing time OC) Purity of the mixing water O D) Water to cement ratio A fine broom finish is done only for aesthetic purposes. OA) True O B) False Oarrow_forward
- The raw materials used in Portland Cement production are: A) Calcium/Coal/Alumina/Silica B) Alumina/Sandstone/Iron/Coal C) Calcium/Iron/Sandstone/Silica D) Alumina/Silica/Iron/Calciumarrow_forwardAn asphalt concrete specimen has a mass in air of 1353.9 g, mass in water of 792.4 g, and saturated surface-dry mass of 1342.2 g. Calculate the bulk specific gravity of the specimen.arrow_forwardDiscuss the aging that occurs in asphalt cement during mixing with aggregatesand in service. How can the different types of aging of asphalt cement besimulated in the laboratory?arrow_forward
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