The Use
of New Techniques in The Management of Waste Plastic by Reuse it
in The Asphalt Mix |
The
quantity and type of waste being generated is growing at
enormous rate. The plastic waste produced particularly in form
of bags, Plates, Containers, being nondegradable and with
limited recycling options poses disposal problem. An academic
research aimed at probable use of waste plastic in pavement
structure so as to come up with an ultimate safe disposal
together with improvement in the performance of asphalt mix of
road through better mix design was under taken. Preliminary
investigations have indicate of RPWA (from 1.2 in (1.5 cm) to
No. 200 sieve ( 0.075 cm) , in surface mix design when utilized
up to (5% to 15%) by weight substitution, through the use of
Box-Wilson design program in order to give an optimum condition,
time of reaction, and weight percent of substitution replacement
aggregate in asphalt mix. The above following variables were
studied temperatures (109-206) co , time (20-60) min and weight
at waste substitution (5-15) % wt. respectively. The optimum
conditions were: were 172 oc, 40 min, and 10% wt RPWA. The
effects of experimental variables on the properties of improved
asphalt mix were studied using the Box-Wilson technique of
experimental design and useful relationships could be attained.
Which improved these optimum conditions give high stability of
Marshall Test and low distortion with acceptable low constant
wet density and uneffect dry density with these condition with
high resistance to chemical solutions exposure? It is envisaged
that use of RPWA in the conventional asphalt hot mix design
likely to improve the surface asphalt mix performance with
sustainable solution for the disposal of plastic waste. |
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