Materials For Civil And Construction Engineers In Si Units
4th Edition
ISBN: 9781292154404
Author: Michael S Mamlouk
Publisher: PEARSON
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Textbook Question
Chapter 5, Problem 5.8QP
A sample of wet aggregate weighed 297.2 N. After drying in an oven, this sample weighed 281.5 N. The absorption of this aggregate is 2.5%. Calculate the percent of free water in the original wet sample.
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A sample of wet aggregate 297.2 N. After drying in an oven, this sample weighed 281.5. The absorption of this aggregates is 2.5%. Calculate the percent of free water in the original wet sample.
Weight of the wet aggregates (Wwet) = 297.2 N
Weight of the dry aggregates (Wdry) = 281.5 N
In a laboratory we are doing a series of tests on a sample of aggregate. This sample has the wet weight of 586.3 gr and dry weight of 513.9 gr. If the absorption of this aggregate is measured as 2.23%. Calculate the percent of free water in the original wet sample.
A sample of coarse aggregate was tested in a laboratory to find its moisture content. The wet weight of the sample found to be 5403.5 gr and its dry weight after drying the sample in the oven was 5235.1 gr.
Find the moisture content of the aggregate
If the absorption of the aggregate was measured as 2.15%, calculate the percent of free water in the original sample.
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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- The mass of the container is 50.25 kg. The mass of the CA sample plus container is 1,151.50 kg. After drying, the mass of dried CA sample plus container is 1,150.80 kg. Compute the percent moisture content of the aggregate samplearrow_forwardThe 5-hr boiling test was performed on a medium weathering clay brick according to ASTM C67 and produced the following masses: dry mass of specimen = 1.788 kg saturated mass after 5-hr submersion in boiling water = 2.262 kg Calculate percent absorption by 5-hr boiling and check whether the brick satisfies the ASTM requirements.arrow_forwardSample of coarse aggregate from a stockpile are brought to the laboratory for determination of specific gravities and absorption. The following masses were obtained.Mass of moist aggregate = 5,982 gramsMass of oven-dried aggregate = 5,892 gramsMass of aggregates submerged in water = 4,082 gramsMass of SSD aggregate = 5,897 grams a) absorption, in percentb) moisture content of stockpile aggregate, in percentc) free moisturearrow_forward
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Aggregates: Properties; Author: nptelhrd;https://www.youtube.com/watch?v=49yGZYeokKM;License: Standard YouTube License, CC-BY