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The following sieve analysis results of an aggregate defines which type of graded curves

The following sieve analysis results of an aggregate defines which type of graded curves

Structural Analysis
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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**Question 29:** The following sieve analysis results of an aggregate define which type of graded curves: **Graph Description:** The graph displays a sieve analysis with the x-axis labeled as "Sieve Size" (in mm) and ranging from 0.075 to 19.0. The y-axis is labeled as "Percent Passing" and ranges from 0 to 100%. - A black line represents the "Maximum Density Curve" based on Fuller’s equation. - A blue line demonstrates a “Typical Aggregate Gradation” curve. The sieve sizes listed on the x-axis are: 0.075, 0.15, 0.30, 0.60, 1.18, 2.36, 4.75, 9.5, 13.2, and 19.0. **Multiple Choice Options:** - Dense Graded curve - Gap Graded curve - Open graded curve - Fine Graded curve
Transcribed Image Text:**Question 29:** The following sieve analysis results of an aggregate define which type of graded curves: **Graph Description:** The graph displays a sieve analysis with the x-axis labeled as "Sieve Size" (in mm) and ranging from 0.075 to 19.0. The y-axis is labeled as "Percent Passing" and ranges from 0 to 100%. - A black line represents the "Maximum Density Curve" based on Fuller’s equation. - A blue line demonstrates a “Typical Aggregate Gradation” curve. The sieve sizes listed on the x-axis are: 0.075, 0.15, 0.30, 0.60, 1.18, 2.36, 4.75, 9.5, 13.2, and 19.0. **Multiple Choice Options:** - Dense Graded curve - Gap Graded curve - Open graded curve - Fine Graded curve
Expert Solution
Explanation

Dense graded: The aggregate has more number of smaller particles that fills voids and makes a dense mixture,

For this the curve is left side of diagonal

 

Open-graded: unline densely this has less number of fines so, there are so many voids

The graph is towards the right of diagonal

 

Fine-grained soil: these has all particles passing through No 200 sieve so the graph is towards left

 

Gap graded: These contains all different sizes and it is similar to well-graded but an equal distribution of sizes

So the graph is like S curve as shown

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