4. A sieve analysis test was conducted on a representative sample of a concrete aggregate material for determining its gradiation, and the results are given below. Calculate the percent passing through each sieve and plot the grading curve of the aggregate. The following size sieves were used and the net weights of the material retained on each of them are: SIEVE SIZE 12.5 9.5 4.75 2.36 1.18 .60 .425 .30 .15 .075 PAN (mm) AMOUNT 38.7 36.8 77.5 127.8 164.6 174.3 141.4 105.6 67.8 33.9 RETAINED (g)

4. A sieve analysis test was conducted on a representative sample of a concrete aggregate material for determining its gradiation, and the results are given below. Calculate the percent passing through each sieve and plot the grading curve of the aggregate. The following size sieves were used and the net weights of the material retained on each of them are: SIEVE SIZE 12.5 9.5 4.75 2.36 1.18 .60 .425 .30 .15 .075 PAN (mm) AMOUNT 38.7 36.8 77.5 127.8 164.6 174.3 141.4 105.6 67.8 33.9 RETAINED (g)

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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Coarse 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 = 0.481 %3D Weight of empty bucket = 22.107 Ib %3! Weight of bucket filled with dry rodded coarse aggregate Trial 1 = 69.259 lb %3D Trial 2 = 70.567 lb Trial 3 = 69.708 lb • If the bulk dry specific gravity of the aggregate is 2.727, calculate the percent voids for trial 2. where unit weight of water is 62.40
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.
Can you please write how did you come up with the answer
express your answers in the nearest three decimal numbers refer to MM = 08 and DD = 26
(c) Asphalt concrete mixture of AC 14 will be used to construct the wearing course layer. The coarse aggregate, fine aggregate and filler are used as materials to produce the asphalt concrete mixture. The aggregate gradation will be blended to fulfill the gradation limit according to JKR standard specification as shown in Table Q1(c)(i). Based on this statement, conclude the result of sieve analysis test of blended aggregate as shown in Table Q1(c)(ii). I Table Q1(c)(i): Gradation specification for AC 14 mixture BS Sieve Size (mm) Percentage passing by weight 28.0 20.0 14.0 10.0 5.0 3.35 1.18 0.425 0.150 0.075 100 90-100 76-86 50-62 40-54 18-34 12-24 6-14 4-8 I Act Go to
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Laboratory specific gravity and absorption tests are run on two coarse aggregate sizes, which have to be blended. The results are as follows: Aggregate A: Buck specific gravity = 2.604; absorption 0.544% Aggregate B: Buck specific gravity = 2; absorption = 8% a. What is the unit weight of Aggregate A, kn/m?
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5.14 Coarse 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 = ¹/2 ft³ Weight of empty bucket = 20.3 lb Weight of bucket filled with dry rodded coarse aggregate: Trial 176.6 lb Trial 275.1 lb Questions and Problems 217 Trial 3 78.8 lb a. Calculate the average dry-rodded unit weight b. If the bulk dry specific gravity of the aggregate is 2.620, calculate the percent voids between aggregate particles for each trial.
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