Question

Solve the following problems using paper-pencil and upload them in .PDF or a photo embedded in MS Word before the due date. Results of a grain-size test are as follows: Pass 19mm (3/4 in.) 100% 9.5 mm (3/8 in.) 82% 2.36 mm (No. 8) 61% 0.60 mm (No. 30) 52% 0.15mm (No. 100) 36% 0.06 mm 22% 0.01 mm 16% 0.002 mm 11% Instructions: \begin{itemize} \item Using the above data, find the percentage of gravel, sand, silt, and clay using the USC, AASHTO, and ASTM specifications as shown below. \item Plot the grain-size distribution curve and find the percentage of gravel, sand, silt, and clay. \end{itemize} \begin{tabular}{|l|l|l|l|} \hline & USC & AASHTO & ASTM \\ \hline Gravel & $> \#4$ (4.75 mm) & $> \#10$ (2.0 mm) & $> \#4$ (4.75 mm) \\ Sand & \#4 (4.75 mm) $> \#200$ (0.075 mm) & \#10 (2.0 mm) $> \#200$ (0.075 mm) & y\#4 (4.75 mm) $> \#200$ (0.075 mm) \\ Silt & \#200 (0.075 mm) $>$ & \#200 (0.075 mm) $> 0.002$ mm & \#200 (0.075 mm) $> 0.005$ mm \\ Clay & No distinction & $< 0.002$ mm & $< 0.005$ mm \\ \hline \end{tabular}

          Solve the following problems using paper-pencil and upload them in .PDF or a photo embedded in MS Word before the due date.
Results of a grain-size test are as follows:
Pass 19mm (3/4 in.)	100%
9.5 mm (3/8 in.)	82%
2.36 mm (No. 8)	61%
0.60 mm (No. 30)	52%
0.15mm (No. 100)	36%
0.06 mm	22%
0.01 mm	16%
0.002 mm	11%
Instructions:
\begin{itemize}
    \item Using the above data, find the percentage of gravel, sand, silt, and clay using the USC, AASHTO, and ASTM specifications as shown below.
    \item Plot the grain-size distribution curve and find the percentage of gravel, sand, silt, and clay.
\end{itemize}
\begin{tabular}{|l|l|l|l|}
\hline
 & USC & AASHTO & ASTM \\
\hline
Gravel & $> \#4$ (4.75 mm) & $> \#10$ (2.0 mm) & $> \#4$ (4.75 mm) \\
Sand & \#4 (4.75 mm) $> \#200$ (0.075 mm) & \#10 (2.0 mm) $> \#200$ (0.075 mm) & y\#4 (4.75 mm) $> \#200$ (0.075 mm) \\
Silt & \#200 (0.075 mm) $>$ & \#200 (0.075 mm) $> 0.002$ mm & \#200 (0.075 mm) $> 0.005$ mm \\
Clay & No distinction & $< 0.002$ mm & $< 0.005$ mm \\
\hline
\end{tabular}

Solve the following problems using paper-pencil and upload them in .PDF or a photo embedded in MS Word before the due date.
Results of a grain-size test are as follows:
Pass 19mm (3/4 in.) 100%
9.5 mm (3/8 in.) 82%
2.36 mm (No. 8) 61%
0.60 mm (No. 30) 52%
0.15mm (No. 100) 36%
0.06 mm 22%
0.01 mm 16%
0.002 mm 11%
Instructions:

* Using the above data, find the percentage of gravel, sand, silt, and clay using the USC, AASHTO, and ASTM specifications as shown below.

* Plot the grain-size distribution curve and find the percentage of gravel, sand, silt, and clay.

USC AASHTO ASTM

Gravel > #4 (4.75 mm) > #10 (2.0 mm) > #4 (4.75 mm)

Sand #4 (4.75 mm) > #200 (0.075 mm) #10 (2.0 mm) > #200 (0.075 mm) y#4 (4.75 mm) > #200 (0.075 mm)

Silt #200 (0.075 mm) > #200 (0.075 mm) > 0.002 mm #200 (0.075 mm) > 0.005 mm

Clay No distinction < 0.002 mm < 0.005 mm

Added by Mary K.

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