Abstract:
The world is moving towards a greener, more sustainable approach as we progress
into this industrial world where different kinds of toxic gases are released into the
atmosphere as we get our desired products manufactured. One of the biggest
contributors to global warming is cement production with it being the second most used
material after water. Apart from its negative effects on nature it is a raw material having
high cost and uncertain price in market. Roads are an important factor in the economic
contribution of a country. Only with a strong and efficient road network a country is
economically able to challenge and participate in the competition others have to offer.
Conventionally 2 types of pavements have existed Flexible pavements and rigid
pavements. Flexible pavements famous for their premium ride quality, low cost of
construction and Rigid pavements famous for their high strength durable surfacing
both suffer from their own disadvantages. Flexible pavements while being good in ride
quality suffer from poor design life resistance to fatigue and rutting at the same time
rigid pavement while providing good strength are expensive in construction and take
a lot of time. Semi-Flexible pavements are a hybrid of both these pavements while
taking the strengths and durability of rigid pavement it remains a lot cheaper than rigid
providing a cost bracket in between rigid and flexible offering the strength better than
flexible pavements. In this study the grout used for Semi-Flexible Pavement is
modified by using Bagasse Ash (waste product of sugar factories) lowering down the
cost for construction and CO2 emissions. Control samples with cement and Bagasse
Ash replaced samples are prepared and evaluated for Flow time, 7-Day and 28-Day
Compressive strength. The data is collected and analyzed in software to get a model
which helps us attain the best composition, giving us our desired strength and
maximum cement replacement. Once best grout composition is achieved it is used to
prepare semi-flexible samples which are evaluated for their performance compared to
HMA samples for Marshal stability and fuel resistance.
