Abstract:
Asphalt mixtures are often regarded as the most popular type of surfacing material used in
roadway development. However, in recent years there has been an increase in pavement
failures in asphalt roadways. Countries such as South Africa, in particular, are
experiencing the severe hindrance of these damaged roadways, which lead to numerous
socio-economic issues. The determination of the current state, of the study, of the use of
non-conventional materials in asphalt as well as understanding if the industry is ready and
willing to consider the use of these modified asphalt mixes. This allows researchers to
consider new and innovative ways for further research on this imperative topic, as well as
accelerating the process of the civil engineering industry implementing modified asphalt
mixtures into the development of several new infrastructures. The study aims to determine
if the civil engineering industry will consider using various types of non-conventional
materials in asphalt mixtures to improve the roadways’ overall performance capabilities.
The study uses the quantitative survey method to gather crucial information. The target
group selected for the survey consisted of individuals, particularly in the asphalt industry,
who either contribute or contain knowledge on non-conventional materials or developing
modified or traditional asphalt mixtures. The survey was carried out through a
questionnaire developed using Google Forms to reach a considerable number of
individuals in the target group. The results highlighted interest from the industry; however,
there is still scepticism regarding the viability of incorporating non-conventional material in
the asphalt mixtures, illustrating a potential for further development in this research area to
be accomplished.
