DRAINAGE TIME OF POROUS ASPHALT MIXES DUE TO THE VARIOUS PROPORTION AND CONCENTRATION OF SOILS
ABSTRACTS: The function of
porous pavement will be decreasing due to voids that are clogged by soil and
dust. This condition is a common phenomenon until a certain period of time as
this pavement has to be maintained by removing
the trapped soil in voids. It is estimated that soil proportion, nominal
maximum aggregate size and the cleansing method of trapped soil play a vital
role in determining the loss of water drainage time. This paper presents the
loss of drainage time based on the variety
of soil proportions
and concentrations. Drainage time after
removing trapped soils from
the voids of porous
asphalt is also
presented. There are three methods
of removing the
trapped soils from
porous asphalt mix required
tools such as
a brush (k1),
water sprayer (k2)
and a vacuum
cleaner (k3). The results
showed that the proportion and
concentration of soil used in this study influenced the loss of water drainage
times. Drainage time value at the soil proportion of 85:15 is better than 57:43
proportions. This is verified by the decrease in drainage time value 2.6 and
1.9 times respectively when 25 grams and 10 grams soil were used. The equipment
selection to remove trapped soil in voids
of porous asphalt
mix has to
be considered. The
vacuum cleansing method
was found better
compared to water sprayer and
brush methods.
Author: Hardiman
Journal Code: jptsipilgg080002
