CEG3011 Homework 5

CEG3011 Homework 5 - HW 5 CEG 3011 Spring 2010 Problem 1...

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HW 5 CEG 3011 Spring 2010 Problem 1 The following information was provided from the soils laboratory for a bucket of mixed waste foundry sand that was tested at Modified Proctor (MP) effort (measurements are in grams – the compaction mold has an empty volume 1/30 cubic foot with a mass of 4327 g, and the tares were used for the moisture content determination): Point No. 1 2 3 4 5 M mold + M wet soil 6051 6125 6186 6162 6133 M wet soil + M tare 347.56 350.14 367.62 362.98 377.90 M dry soil + M tare 338.14 337.97 353.95 349.05 360.34 M tare 266.47 256.97 273.65 276.90 278.22 a) Find the dry unit weight – water content relationship in units of pounds per cubic foot. b) Determine the maximum dry unit weight ( γ d(max) ) and the optimum water content (w opt ). Problem 2 You are checking a field compacted liner for a landfill. The laboratory STANDARD PROCTOR curve has the following values: The specification for compaction states that the compacted field soil must be at least 98% of the maximum STANDARD unit weight and within ±3% of the optimum moisture for
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This note was uploaded on 10/29/2011 for the course CEG 3011 taught by Professor Staff during the Spring '07 term at FSU.

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CEG3011 Homework 5 - HW 5 CEG 3011 Spring 2010 Problem 1...

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