Materials For Civil And Construction Engineers In Si Units
4th Edition
ISBN: 9781292154404
Author: Michael S Mamlouk
Publisher: PEARSON
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Chapter 5, Problem 5.34QP
To determine
The percentage of fine aggregate that will give a resulting minus No. 200 in the mixture in the middle of the range about
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The mix design for an asphalt concrete mixture requires 2 to 6% minus No.200. The three aggregates shown in Table are available.Considering that approximately equal amounts of coarse and intermediateaggregate will be used in the mix, what is the percentage of fine aggregate that will give a resulting minus No. 200 in the mixture in the middle of the range,about 4%?
An aggregate blend is composed of 65% coarse aggregate by weight (SG 2.65), 30% fine aggregate (SG 2.70), and 5% filler (SG 2.75). The compacted specimen contains 6% asphalt binder (SG 105) by weight of total mix, and has a bulk densit of 2.255 Mg/m&3. Ignoring absorption.a. What is the percent voids fill with asphalt?b. What is the percent voids in mineral aggregates?c. What is the percent voids in total mix?
The volume of gravel and cement used in a 1 ft3 concrete mixture is 0.58 ft3 and 0.12 ft3, respectively. The air-entrained is assumed to be 8% of the volume of water added to the mix which is equal to 0.057 ft3.
Determine the water-cement ratio.
Group of answer choices
0.32
0.48
0.74
0.57
Calculate the volume of fine aggregate in the mixture.
Group of answer choices
0.243 ft^3
0.240 ft^3
0.238 ft^3
0.295 ft^3
Based on the water-cement ratio in previous number, what is the theoretical compressive strength in psi?
Group of answer choices
2000
5000
4000
3000
Chapter 5 Solutions
Materials For Civil And Construction Engineers In Si Units
Ch. 5 - Prob. 5.1QPCh. 5 - Discuss five different desirable characteristics...Ch. 5 - Discuss five different desirable characteristics...Ch. 5 - The shape and surface texture of aggregate...Ch. 5 - Define the following terms: a. Saturated...Ch. 5 - Three samples of fine aggregate have the...Ch. 5 - A sample of wet aggregate weighed 297.2 N. After...Ch. 5 - 46.5 kg (102.3 lb) of fine aggregate is mixed with...Ch. 5 - Samples of coarse aggregate from a stockpile are...Ch. 5 - Base course aggregate has a target dry density of...
Ch. 5 - Calculate the percent voids between aggregate...Ch. 5 - Calculate the percent voids between aggregate...Ch. 5 - Coarse aggregate is placed in a rigid bucket and...Ch. 5 - The following laboratory tests are performed on...Ch. 5 - Students in the materials lab performed the...Ch. 5 - The specific gravity and absorption test (ASTM...Ch. 5 - Prob. 5.18QPCh. 5 - Calculate the sieve analysis shown in Table P5.19...Ch. 5 - Calculate the sieve analysis shown in Table P5.20,...Ch. 5 - A sieve analysis test was performed on a sample of...Ch. 5 - A sieve analysis test was performed on a sample of...Ch. 5 - Draw a graph to show the cumulative percent...Ch. 5 - Referring to Table 5.6, plot the specification...Ch. 5 - Referring to the aggregate gradations A, B, and C...Ch. 5 - Table P5.26 shows the grain size distributions of...Ch. 5 - Table P5.27 shows the grain size distributions of...Ch. 5 - Three aggregates are to be mixed together in the...Ch. 5 - Table P5.29 shows the grain size distribution for...Ch. 5 - Laboratory specific gravity and absorption tests...Ch. 5 - Table P5.31 shows the grain size distribution for...Ch. 5 - Prob. 5.32QPCh. 5 - Laboratory specific gravity and absorption tests...Ch. 5 - Prob. 5.34QPCh. 5 - Define the fineness modulus of aggregate. What is...Ch. 5 - Calculate the fineness modulus of aggregate A in...Ch. 5 - Calculate the fineness modulus of aggregate B in...Ch. 5 - A portland cement concrete mix requires mixing...Ch. 5 - Discuss the effect of the amount of material...Ch. 5 - Aggregates from three sources having the...Ch. 5 - Aggregates from three sources having the...Ch. 5 - A contractor is considering using three stockpiles...Ch. 5 - Prob. 5.43QPCh. 5 - What are the typical deleterious substances in...Ch. 5 - Review ASTM D75 and summarize the following: a....
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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_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_forwardAn aggregate blend is composed of 59% coarse aggregate by weight (Sp. Gr.2.635), 36% fine aggregate (Sp. Gr. 2.710), and 5% filler (Sp. Gr. 2.748). Thecompacted specimen contains 6% asphalt binder (Sp. Gr. 1.088) by weight oftotal mix and has a bulk density of 2305 kg/m3 . Ignoring absorption, computethe percent voids in total mix, percent voids in mineral aggregate, and thepercent voids filled with asphalt.arrow_forward
- A concrete aggregate mix must contain at least 31% sand by volume for proper batching. One source of material, which has 25% sand and 75% coarse aggregate, sells for $3 per cubic meter (m3). Another source, which has 40% sand and 60% coarse aggregate, sells for $4.40/m3. Determine the least cost per cubic meter of blended aggregates.arrow_forwardA compacted asphalt concrete specimen has the following properties: a. Asphalt content = 5% by total weight of the mix b. Bulk specific gravity of the mix = 2.485 c. Theoretical maximum specific gravity = 2.595 d. Bulk specific gravity of the aggregate = 2.715 e. Absorption = 1.5% Compute the percent’s VTM, VMA and VFAarrow_forwardAn aggregate blend is composed of 59% coarse aggregate by weight (Sp. Gr.2.635), 36% fine aggregate (Sp. Gr. 2.710), and 5% filler (Sp. Gr. 2.748). Thecompacted specimen contains 6% asphalt binder (Sp. Gr. 1.088) by weight oftotal mix and has a bulk density of 2305 kg/m3. Ignoring absorption, compute the percent voids in total mix, percent voids in mineral aggregate, and the percent voids filled with asphalt.arrow_forward
- An asphalt concrete mixture is to be designed according to the Marshall procedure. A PG 64-22 asphalt cement with a specific gravity (Gb) of 1.00 is to be used. A dense aggregate blend is to be used, with a maximum aggregate size of 3/4 in. and a bulk specific gravity (Gsb) of 2.786. The theoretical maximum specific gravity of the mix (Gmm), at asphalt content of 4.5%, is 2.490. Trial mixes were made with average results as shown in Table . Using a spreadsheetprogram, plot the appropriate six graphs necessary for the Marshall procedure and select the optimum asphalt content, using the Asphalt Institute design criteria for medium traffic(see Table . Assume a design air void content of 4% when using Tablearrow_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_forwardA mix design requires 1160 kg/m3 of coarse aggregate (in dry condition), 599 kg/m3of fine aggregate (in dry condition) and 148 kg/m3 of water. The absorption capacityof the coarse aggregate is 0.4 % while the moisture content is 1.5%. The absorptioncapacity of the fine aggregate is 0.4 % while the moisture content is 4%. Pleaseanswer the following questions based on information given. a. What is the amount of Moist Coarse Aggregate? b. What is the amount of SSD Fine Aggregate? c. What is the amount of Moist Fine Aggregate? d. What is the amount of water after adjusting for moisture?arrow_forward
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