A research has been carried out to develop natural rubber (NR) hybrid composites reinforced
with marble sludge (MS)/Silica and MS/rice husk derived silica (RHS). The primary aim of this
development is to scrutinize the cure characteristics, mechanical and swelling properties of such
hybrid composite. The use of both industrial and agricultural waste such as marble sludge and
rice husk derived silica has the primary advantage of being eco-friendly, low cost and easily
available as compared to other expensive fillers. The results from this study showed that the performance
of NR hybrid composites with MS/Silica and MS/RHS as fillers is extremely better in
mechanical and swelling properties as compared with the case where MS used as single filler.
The study suggests that the use of recently developed silica and marble sludge as industrial
and agricultural waste is accomplished to provide a probable cost effective, industrially prospective,
and attractive replacement to the in general purpose used fillers like china clay, calcium carbonate,
and talc.