**Question 25:**Refer to Figure 7.16. What would 90% of the maximum dry density equal for this curve? If the specifications require 95% of standard Proctor density and within ±2% of the optimum water content, what range of values would be acceptable for this test?*Note: Since Figure 7.16 is not provided, ensure to cross-reference the relevant graph to derive precise values for the assessment described in the question.* The graph illustrates the Standard Proctor compaction curve, which is used to determine the relationship between the dry unit weight (γₑ) of soil and its water content (w). The x-axis represents the water content as a percentage, ranging from 0% to 20%. The y-axis on the left denotes the dry unit weight in pounds per cubic foot (lb/ft³), while the y-axis on the right represents the void ratio (e). Key features of the graph:- The curve shows a peak, indicating the maximum dry density of the soil, which is 120.5 lb/ft³.- The optimum water content, at which this maximum dry density is achieved, is 13%.- The void ratio decreases as the dry unit weight increases, then rises slightly after the peak.**Figure 7.16**: Standard Proctor compaction curve.**Note**: 62.4 lb/ft³ = 1 Mg/m³.

Standard proctor test is used to establish a relationship between dry density and moisture content…

. Refer to Figure 7.16. What would 90% of the maxi- mum dry density equal for this curve? If the speci fications require 95% of standard Proctor density and within +2% of the optimum water content, what range of values would be acceptable for this test?

. Refer to Figure 7.16. What would 90% of the maxi- mum dry density equal for this curve? If the speci fications require 95% of standard Proctor density and within +2% of the optimum water content, what range of values would be acceptable for this test?

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

The graph illustrates the Standard Proctor compaction curve, which is used to determine the relationship between the dry unit weight (γₑ) of soil and its water content (w). The x-axis represents the water content as a percentage, ranging from 0% to 20%. The y-axis on the left denotes the dry unit weight in pounds per cubic foot (lb/ft³), while the y-axis on the right represents the void ratio (e).

Key features of the graph:
- The curve shows a peak, indicating the maximum dry density of the soil, which is 120.5 lb/ft³.
- The optimum water content, at which this maximum dry density is achieved, is 13%.
- The void ratio decreases as the dry unit weight increases, then rises slightly after the peak.

**Figure 7.16**: Standard Proctor compaction curve.
**Note**: 62.4 lb/ft³ = 1 Mg/m³.

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