### Question 2**Objective:** Calculate the moisture content and absorption capacity for the following three aggregate samples. Report the moisture state of each aggregate.#### Sample Calculations:**a) Sample from Stockpile A:**- Initial Mass: 19.00 lb- Oven-Dried Mass: 17.98 lb- Saturated Surface Dry (SSD) Mass: 19.00 lb**b) Sample from Stockpile B:**- Initial Mass: 5.08 kg- Oven-Dried Mass: 5.01 kg- SSD Mass: 5.13 kg**c) Sample from Stockpile C:**- Initial Mass: 53.98 lb- Oven-Dried Mass: 53.22 lb- SSD Mass: 53.54 lbFor each sample, calculate:- Moisture Content (\(%\)): \(\frac{\text{Initial Mass} - \text{Oven-Dried Mass}}{\text{Oven-Dried Mass}} \times 100\)- Absorption Capacity (\(%\)): \(\frac{\text{SSD Mass} - \text{Oven-Dried Mass}}{\text{Oven-Dried Mass}} \times 100\)**Note:** The mass with units must be considered precisely as given, without conversion except for necessary calculations.

M1=mass of sampleM2=mass of oven dry sample M3=mass of sample in SSD conditionFormulaMoisture…

Answered: Calculate the moisture content and…

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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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 2-8
In specific gravity test for coarse aggregate we found the following results: dry weight A= 3008 grams SSD weight B = 3037 grams %3D Submerged weight C=1907 grams The SSD specific gravity Select one: O a. 2.456 O b. 2.877 O c. 2.688 O d. 2.899
Qиestion no.08 The result of specific gravity test is given below Weight of saturated aggregate in water =618gm Weight of oven dry sample = 982 gm Weight of saturated surface dry aggregate = 990 gm (i) Calculate the specific gravity of aggregate?
N=2
Highways Engineering Example2: Determine percentages air voids and voids filled with binder to obtain a unit weight value for the mix of 2.349 g/cm3, given that: % of coarse aggregate 54%, Gc=2.64 % of fine aggregate = 40%, Gf=2.66 % of mineral filler = 6%, Gmf=2.85 % of biner content by the total weight of the mix= 5.3%, Gb=1.02
Three samples of aggregates were taken weighed in moist and dry condition. Moist Dry Unit Absorption Volume (m3) Unit Aggregate Wt. Wt. (%) (kN/m3) (kN/m3) Sample 1 23.425 20.018 5.14 0.366 Sample 2 22.7 18.757 3.87 0.695 Sample 3 20.292 18.387 2.62 0.237 Where; Unit weight of water = 9.81 kN/m3 %3D Determine the average free moisture content of the three samples.
Thoroughly mix the aggregate sample and reduce it to an amount suitable for testing, using a sample splitter or by quartering. The minimum sample size should be as follows: Minimum Mass, kg Fine aggregate with at least 95% passing 2.36-mm sieve 0.1 Fine aggregate with at least 85% passing 4.75-mm sieve 0.5 Coarse aggregate with a nominal maximum size of 9.5 mm 1 Coarse aggregate of a nominal maximum size of 12.5 mm 2 Coarse aggregate of a nominal maximum size of 19.0 mm Coarse aggregate of a nominal maximum size of 25.0 mm 10 Coarse aggregate of a nominal maximum size of 37.5 mm 15
Q-5) Answer (True) or (false) and correct if (false). 1. C,S need more than twice amount of water from C,S to hydration. 2. Calcareous material as a source of silica and alumina in manufacture of Portland cement. 3. Rough surfaces of aggregate improve mechanical bond. 4. Saturated surface dry condition (SSD) of aggregate means all internal pores are saturated with water and its surface wet. 5. Iraqi specification No. 5 limited Sulfur oxide in the cement as max. by 2.8% when C3A > 5%.
From a Fine Aggregate sample, the ff data are given below to determine only the SPECIFIC GRAVITIES and ABSORPTION OF THE SAMPLE. MASS of oven dried aggregate 428.3g MASS of PYC filled with water =652.5g MASS of aggregate and water =785.3g MASS of SSD Aggregate =459.1g MASS OF AN EMPTY PYCNOMETER =125.0g MASS of oven dried aggregate 428.3g 652.5g 785.3g 459.1g 125.0g MASS of PYC filled with water MASS of aggregate and water MASS of SSD Aggregate MASS OF AN EMPTY PYCNOMETER IL || || |I
VFB=??
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
2) How should the moisture contents of the three samples compare? 3) Why is it important to determine the moisture content of aggregates? 4) Describe the natural moisture content (in general terms rather than numerical terms) of aggregate stockpiles and how it is dealt with in the construction industry.

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