The soil at a job site can reach a maximum dry unit weight of 115.3 lb/ft^3. The contractor tests the soil after compaction and it has a dry unit weight of 109.5 lb/ft 3. What is the percent compaction of the soil?

The soil at a job site can reach a maximum dry unit weight of 115.3 lb/ft^3. The contractor tests the soil after compaction and it has a dry unit weight of 109.5 lb/ft 3. What is the percent compaction of the soil?

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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Concept explainers

Pricing Excavation and Backfill

Backfill, in construction, is the activity of returning the soil and gravel that are removed during building construction or using them again to toughen and support the foundation of the building or any other structural component.

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**Problem Statement:**

The soil at a job site can reach a maximum dry unit weight of 115.3 lb/ft³. The contractor tests the soil after compaction and it has a dry unit weight of 109.5 lb/ft³. What is the percent compaction of the soil?

**Solution Area:**

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Expert Solution

Step 1: given data

maximum dry density

$gamma subscript m a x end subscript equals 115.3 space l b divided by f t cubed$

dry unit weight after compaction

$gamma subscript f i e l d end subscript equals 109.5 space l b squared divided by f t cubed$

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