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 5.26QP
Table P5.26 shows the grain size distributions of aggregates A, B, and C. The three aggregates must be blended at a ratio of 15:25:60 by weight, respectively. Using a spreadsheet program, determine the grain size distribution of the blend.
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Table shows the grain size distributions of aggregates A, B, and C. The three aggregates must be blended at a ratio of 15:25:60 by weight, respectively.Using a spreadsheet program, determine the grain size distribution of the blend.
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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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- Calculate the bulk specific gravity of combined aggregate if you know the specific gravities of coarse aggregate (C), fine aggregate (F) and Mineral Filler (MF) are 2.61, 2.63 and 2.71 respectively. The percent for C, F, and MF can be determined based on the gradation shown belowarrow_forwardLaboratory specific gravity and absorption tests are run on two coarse aggre-gate sizes, which have to be blended. The results are as follows: Aggregate A: Bulk specific gravity = 2.491; absorption = 0.8,Aggregate B: Bulk specific gravity = 2.773; absorption = 4.6,a. What is the specific gravity of a mixture of 60% aggregate A and 40%aggregate B by weight?b. What is the absorption of the mixture?arrow_forwardWe have four aggregates with specific gravity values of 2.46, 2.82, and 2.78 in equal proportions, e.g. 1/3 each. What is the specific gravity of the aggregate blend?arrow_forward
- Three aggregates are to be mixed together in the following ratio: Aggregate A 35% Aggregate B 40% Aggregate C 25% For each aggregate, the percent passing a set of five sieves is shown in the following table: Determine the percent passing each sieve for the blended aggregate?arrow_forwardShow complete process. Aggregates from three sources having the properties shown in the table below where blended at a ratio of 30:45:25 by weight. Determine the properties of the aggregate blend.arrow_forwardCoarse aggregate is placed in a rigid bucket and rodded with a tamping rod to determine its unit weight. The following data are obtained:Volume of bucket = 1/3 ft3Weight of empty bucket = 18.5 lbWeight of bucket filled with dry rodded coarse aggregate = 55.9 lba. Calculate the dry-rodded unit weightb. If the bulk dry specific gravity of the aggregate is 2.630, calculate the percent voids in the aggregate.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_forwardWhat is the weight of coarse aggregates in kilograms needed for the design mix? Use three decimal places for the volume of coarse aggregates (from interpolation) Use two decimal places for the computed weight of coarse aggregatesarrow_forwardLaboratory specific gravity and absorption tests are run on two coarse aggregate sizes, which have to be blended. The results are as follows:Aggregate A: Bulk specific gravity = 2.491; absorption = 0.8,Aggregate B: Bulk specific gravity = 2.773; absorption = 4.6,a. What is the specific gravity of a mixture of 60% aggregate A and 40% aggregate B by weight?b. What is the absorption of the mixture?arrow_forward
- A sample of lightweight coarse aggregate weighs 532.3 g when oven-dried, 615.7 g when saturated surface-dried, and 191.3 g when submerged. Calculate the bulk specific gravity, apparent specific gravity, and percent absorption.arrow_forwardWhat is the weight of fine aggregates in kilograms needed for the design mix? Use three decimal places in the computation of volumes Use two decimal places for the computed weight of fine aggregatesarrow_forwardA sieve analysis test was performed on a sample of aggregate and produced the results shown in Table .Calculate the percent passing through each sieve. Plot the percent passingversus sieve size on:a. a semilog gradation chart, andb. a 0.45 gradation chart (Figure A.25).What is the maximum size? What is the nominal maximum size?arrow_forward
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