As mentioned above, the washing process can decrease the
amount of chloride and heavy metals in MSWIBA to the extent that
washed MSWIBA can conform to the chloride content and TCLP
test result requirements for concrete aggregates. Because the hardness
of washed MSWIBA is lower than that of natural aggregate, it
is suitable for use in low-strength concrete but not normalstrength
concrete. The pore content, permeability, and compressive
strength results obtained in this study demonstrate that using
washed MSWIBA as pervious concrete aggregate is practical. However,
several aspects of this application warrant further research,
including the influences of the washed MSWIBA size and higher
pore-filling paste ratios on the engineering properties of pervious
concrete, other engineering properties of washed-MSWIBA pervious
concrete, use and performance of washed-MSWIBA pervious
concrete in structural applications, and differences between laboratory
testing and field requirements of concrete.