Problem $1$: A brown, reddish brown, and gray soil is being used to construct a low$-$permeability clay liner for a solid waste landfill. A sample obtained from the on$-$site borrow pit has the following laboratory test results:

$W_c($at the time of sampling$)=32\mathrm{.}2\%,LL=72\%,PL=23\%,$ Passing No$.200$ sieve $=98\mathrm{.}4\%,k_v,$ the vertical permeability $($hydraulic conductivity $)=7\mathrm{.}3{10}^{-10}c\frac{m}{sec},$ and the following Standard Proctor $($ASTM D$698)$ test results:

$\backslash$table$[[$Point No$.,$Wc$,\%,{}_m,$ pcf$,{}_d,$ pcf$],[1,18\mathrm{.}6,103\mathrm{.}1,],[2,21\mathrm{.}8,112\mathrm{.}9,],[3,23\mathrm{.}7,120\mathrm{.}1,],[4,26\mathrm{.}5,121\mathrm{.}3,],[5,29\mathrm{.}5,118\mathrm{.}8,]]$

USCS Symbol:

ENCE $3340$

Homework No$.4$

Due Date: April $1,2024$

Name:

Classify the soil according to the Unified Soil Classification System $($USCS$).(10$ pts$)$

Compute the dry density $({}_d)$ for each Proctor test point, and complete the above table. Show an example calculation. $(10$ pts$)$

Use Excel to plot the wet density and dry density Proctor curves. Your Excel grid for plotting needs to match the attached grid. $(10$ pts$)$

Complete the attached Zero Air Voids $($ZAV$)$ curves table. Plot the ZAV curves on your Excel Proctor curve plots. Show an example calculation. $(5$ pts$)$

Determine the Maximum Dry Density $({}_{\text{d}\text{m}\text{a}\text{x}})$ and the Optimum Water content $(W_{\text{o}\text{p}\text{t}}).$ Show the values on the Excel Proctor curve plots. $(5$ pts$)$

Determine the ranges of ${}_{d,\text{f}\text{i}\text{e}\text{l}\text{d}}$ and moisture contents required for field compaction of $95\%$ of the standard Proctor maximum dry density. Show the ranges on the Excel Proctor curve plots. $(20$ pts$)$

Considering the OMC and the water content of the soil at the time of sampling, what advice would you give to the earthwork contractor regarding the moisture content to help the contractor obtain the specified degree of compaction? $(20$ pts$)$

What type$($s$)$ of compaction equipment should you recommend an earthwork contractor use to compact this soil? $(20$ pts$)$

Zero Air Voids $($ZAV$)$ Curves Table

$\backslash$table$[[G_S,{}_w,$ pcf$,W_c,\%,{}_{\text{Z}\text{A}\text{v}\text{,}}$ pcf$],[2\mathrm{.}70,,,],[2\mathrm{.}70,,,],[2\mathrm{.}70,,,],[2\mathrm{.}70,,,],[2\mathrm{.}70,,,],[2\mathrm{.}80,,,],[2\mathrm{.}80,,,],[2\mathrm{.}80,,,],[2\mathrm{.}80,,,],[2\mathrm{.}80,,,]]$

ENCE $3340$

Homework No$.4$

Due Date: April $1,2024$

Name:

Your Excel grid for the plotting required in Parts $3$ through $6$ of the assignment needs to match this grid. After completing your plotting, insert the plot into your PDF submittal. Conceptually, it chnuld he cimilar to the followino

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Problem $1$: A brown, reddish brown, and gray soil is being used to construct a low$-$permeability clay liner for a solid waste landfill. A sample obtained from the on$-$site borrow pit has the following laboratory test results:

$W_c($at the time of sampling$)=32\mathrm{.}2\%,LL=72\%,PL=23\%,$

Passing No$.200$ sieve $=98\mathrm{.}4\%,k_v,$ the vertical permeability

$($hydraulic conductivity $)=7\mathrm{.}3{10}^{-10}c\frac{m}{sec},$ and the following Standard Proctor $($ASTM D$698)$ test results:

$\backslash$table$[[$Point No$.,$Wc$,\%,{}_m,$ pcf$,{}_d,$ pcf$],[1,18\mathrm{.}6,103\mathrm{.}1,],[2,21\mathrm{.}8,112\mathrm{.}9,],[3,23\mathrm{.}7,120\mathrm{.}1,],[4,26\mathrm{.}5,121\mathrm{.}3,],[5,29\mathrm{.}5,118\mathrm{.}8,]]$

USCS Symbol:

ENCE $3340$

Homework No$.4$

Due Date: April $1,2024$

Name:

Classify the soil according to the Unified Soil Classification System $($USCS$).(10$ pts$)$

Compute the dry density $({}_d)$ for each Proctor test point, and complete the above table. Show an example calculation. $(10$ pts$)$

Use Excel to plot the wet density and dry density Proctor curves. Your Excel grid for plotting needs to match the attached grid. $(10$ pts$)$

Complete the attached Zero Air Voids $($ZAV$)$ curves table. Plot the ZAV curves on your Excel Proctor curve plots. Show an example calculation. $(5$ pts$)$

Determine the Maximum Dry Density $)$ and the Optimum Water content $(W_{\text{o}\text{p}\text{t}}).$ Show the values on the Excel Proctor curve plots. $(5$ pts$)$

Determine the ranges of ${}_{d,\text{f}\text{i}\text{e}\text{l}\text{d}}$ and moisture contents required for field compaction of $95\%$ of the standard Proctor maximum dry density. Show the ranges on the Excel Proctor curve plots. $(20$ pts$)$

Considering the OMC and the water content of the soil at the time of sampling, what advice would you give to the earthwork contractor regarding the moisture content to help the contractor obtai

Please use Excel for the graph