ARAÚJO, R. B.; http://lattes.cnpq.br/3151513424399581; ARAÚJO, Robson Barros.
Abstract:
It is easily observed that major number of highways in Brazil have been made in
CBUQ, that is, flexible pavement, instead of CCP, better known as rigid
pavement, although professionals of this area know the advantages of this kind
of pavement, such as durability and easy manutention. Among the major
reasons flexible pavement is preferred than rigid pavement it is the cost in
working with rigid pavement, that becomes higher by granite brite cost, used as
coarse aggregate, when applied in places where there is a lack of jazides of
that material. For those places, the final cost of granite brite cubic meter can
increase over 48 p.c., if the same is compared to places where this is easily
found. Because of the high costs for the execution of pavement in CCP, and
knowing that 40 p.c. of emerse lands of the Earth, between tropics of Cancer
and Capricorn, are cover by laterites and that, in Brazil, that percentage comes
close to 60 p.c. of the total area of the country, that there has been seeing the
need of analyzing lateritic as coarse aggregate due to rigid pavement. In order
to do that, physic experiments were done to concretions and mechanic ones to
lateritic concrete, verifying the viability on usage that kind of aggregate in
concrete due to highway pavement, showing that kind of material an alternative
to places where granitic brites are low, as like North of Brazil and others places
on Earth.