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.

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.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Answer 5.8
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.
Question 2 Calculate the moisture content and absorption capacity for the following three aggregate samples. Report the moisture state of each aggregate. a) An aggregate sample from a stockpile A has a mass of 19.00 lb. When oven-dried, it has a mass of 17.98 lb. When brought to a saturated surface dry state it has a mass of 19.00 lb. b) An aggregate sample from a stockpile B has a mass of 5.08 kg. When oven-dried, it has a mass of 5.01 kg. When brought to a saturated surface dry state it has a mass of 5.13 kg. c) An aggregate sample from a stockpile C has a mass of 53.98 lb. When oven-dried, it has a mass of 53.22 lb. When brought to a saturated surface dry state it has a mass of 53.54 Ib.
Three samples of fine aggregate have the properties shown in Table. Determine in percentage: (a) total moisture content and (b) free moisture content for each sample and the average of the three samples.
A sample of wet aggregate weighed 297.2 N. After drying in an oven, this sample weighed 281.5 N. Theabsorption of this aggregate is 2.5%. Determine the saturated surface dry weight of the aggregates.
Specific 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.
Example 2: Specific gravity test was conducted for a fine aggregate. If the following data was obtained during the test: - the saturated surface dry weight of the sample = 500 g. %3D - Weight of pycnometer full of water= 750 g - Weight of pycnometer and sample and water= 1050 g. - Oven dry weight of the sample is 475 g. for this aggregate, FIND - The apparent specific gravity. - The bulk specific gravity on an ssd basis. Percentage of absorption.
A saturated aggregate sample with an absolute volume of 5.05x10^-5 m^3 has a mass of 178 g before drying and 139 g after drying in an oven. Assume the water absorption by volume to be 59.18%. Determine the following: a. Specific gravity of the solid particles b. Mass specific gravity c. Void Ratio d. Porosity
The moisture content of an aggregate is equal to the ratio between the original weight of the sample to the dried weight of the sample (A) True B) False
The wet mass of an aggregate sample is 583g and its dry mass is 575g. The test shows the absorption as 1.5%. what is the moisture condition of this aggregate? O Air dry Bone dry O Moist O SSD
2) 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 143