PARTICLE SHAPE $($FLAKINESS INDEX$)-$ SANS $5847$ & SANS $3001-$AG$4$

$2\mathrm{.}1.$ Why is it important to perform a particle shape test on coarse aggregates $($stone$)$ for the use in concrete?

$(3$ marks$)$

$2\mathrm{.}2.$ Provide calculations and results.

$(4$ marks$)$

$\backslash$table$[[$Sieve size $($mm$),$Flaky $($g$),$Non$-$Flaky $($g$)],[28,,],[20,,],[14,,],[10,,],[7\mathrm{.}1,,],[5\mathrm{.}0,,],[$Flakiness Index $=,]]$