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 5, Problem 5.15QP
The following laboratory tests are performed on aggregate samples:
a. Specific gravity and absorption
b. Soundness
c. Sieve analysis test
What are the significance and use of each of these tests?
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Students have asked these similar questions
I 1. Determine the apparent specific gravity (G.), dry bulk specific gravity (Gs(OD)), SSD
bulk specific gravity (Gt(ssD) and absorption capacity of a fine aggregate sample using the
following data:
Weight of sample in dry condition: 485 g
• Weight of sample in SSD condition: 505 g
• Weight of pycnometer with the sample and water: 1015 g
Weight of pycnometer with water: 700 g
The following laboratory tests are performed on aggregate samples:a. Specific gravity and absorptionb. Soundnessc. Sieve analysis testWhat are the significance and use of each of these tests?
Students in the materials lab performed the specific gravity and absorption test (ASTM C127) on coarse aggregate and they
obtained following data:
a. Dry weight = 3862.1 g
b. SSD weight = 3923.4 g
c. Submerged weight = 2452.1 g
1. Calculate the specific gravity values (dry bulk, SSD, and apparent) and the absorption of the coarse aggregate. (Answer in 3
decimal places)
Chapter 5 Solutions
Materials for Civil and Construction Engineers (4th Edition)
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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- Establish the differences between the wear test performed on aggregates smaller than 3/4 "and the wear test performed on aggregates larger than 3/4"arrow_forwardA sieve analysis test was performed on a sample of coarse aggregate and produced the results in Tablea. Calculate the percent passing through each sieve.b. What is the maximum size?c. What is the nominal maximum size?d. Plot the percent passing versus sieve size on a semilog gradation chart.e. Plot the percent passing versus sieve size on a 0.45 gradation chart.f. Referring to Table (ASTM C33), what is the closest size number anddoes it meet the gradation for that standard size?arrow_forward2) Sieve analysis results of a fine and a coarse aggregate are given in the tables below. For the determination of their specific gravities and water absorption capacities, the relevant measurement results of tests are also given in the tables. Draw the gradation curves of the fine and coarse aggregate separately. Calculate the fineness modulus of fine aggregate. Calculate the specific gravity and water absorption capacity of fine and coarse aggregate for oven-dry (OD) and saturate-surface dry (SSD) conditions. Sieve analysis results for COARSE AGGREGATE: Sieve Opening Weight Retained, (mm) 25.0 19.0 400 12.5 1400 9.50 2160 1/2 Sieve analysis results for FINE AGGREGATE: Sieve Opening (mm) Weight Retained, 4.75 2.00 950 0.85 2000 0.425 1010 0.25 670 Pan 143arrow_forward
- The table below presents the results of the sieve analysis conducted on a sample of aggregate. Given the bulk specific gravities of 2.65 for coarse aggregate, 2.69 for fine aggregate, and 2.73 for filler, determine the bulk density of the aggregate sample. Additionally, calculate the maximum aggregate size and nominal aggregate maximum size. Sieve size (mm) 37.5 % Passing 100 Specification limit 25 92 100 90-100 19 83 76-90 12.5 9.5 4.75 2.36 0.3 71 62 53 32 15 56-80 48-74 29-59 19-45 5-17 0.075 4 2-8arrow_forward2.638, 2.514, 2.437 O 2.651, 2.472, 2.364arrow_forwardTEST PROCEDURE: 1. Dry the aggregate test sample to a constant weight at a temperature of 110 ± 5°C, then cool to room temperature. 2. Select suitable sieve sizes to furnish the information required by the specifications covering the material to be tested. Common sieves in millimeters are 37.5, 25, 19, 12.5, 9.5, 4.75, 2.36, 1.18, 0.6, 0.3, 0.15, and 0.075 mm (11 2 in., 1 in., 3 4 in., 1 2 in., 3 8 in., No. 4, No. 8, No. 16, No. 30, No. 50, No. 100, and No. 200). 3. Nest the sieves in order of decreasing size of opening, and place the aggregate sample on the top sieve. 4. Agitate the sieves by hand or by mechanical apparatus for a sufficient period. The criterion for sieving time is that, after completion, not more than 1% of the residue on any individual sieve will pass that sieve during 1 minute of continuous hand sieving. 5. Determine the weight of each size increment. 6. The total weight of the material after sieving should be compared with the original weight of the sample placed…arrow_forward
- Specific Gravity and Absorption of Coarse Aggregates What are the possible discussion of observations for specific gravity and absorption of aggregate to observed values?arrow_forwardSpecific Gravity and absorption test is done in the materials lab on a sample of coarse aggregate and the following data is obtained: Dry weight: 1002.3 g SSD weight: 1032.4 g Submerged weight: 607.5 g Calculate the specific gravity values (dry, SSD and apparent) and the absorption of the coarse aggregate.arrow_forwardhelp find a, and barrow_forward
- A sieve analysis test was performed on a sample of coarse aggregate and produced the following results:A.) Calculate the fineness modulus of aggregate? Is in within the typical range?arrow_forwardCalculate the fineness modulus of this fine aggregate sample. Report your answer to the nearest 1 decimal place (tens). Sieve Size, Retained Mass, % Retained Cumulative % % Passing mm (US) 12.5 (1/2") 9.5 (3/8") 4.75 (#4) 2.36 (#8) 1.18 (#16) 0.600 (#30) 0.300 (#50) 0.150 (#100) 0.075 (#200) Grams on Sieves retained on seives 3.0 0.36 0.36 99.64 10.0 1.22 1.58 98.42 30.0 3.65 5.22 94.78 55.0 6.68 11.91 88.09 230.0 27.95 39.85 60.15 175.0 21.26 61.12 38.88 140.0 17.01 78.13 21.87 120.0 14.58 92.71 7.29 40.0 4.86 97.57 2.43 Pan 20.0 2.43 100.00 0.00 Total: 823.0arrow_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 = 2.814; Absorption = 0.4% Aggregate B: Bulk specific gravity = 2.441; Absorption = 5.2% a. What is the specific gravity of a mixture of 50% aggregate A and 50% aggregate B by weight? b. What is the absorption of the mixture?arrow_forward
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