Fire-Resistant Sandwich-Structured Composite Material Based on Alternative Materials and Its Physical and Mechanical Properties
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Date
2019-05-02
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Abstract
The development of composite materials from alternative raw materials, and the design
of their properties for the intended purpose is an integral part of the rational management of raw
materials and waste recycling. The submitted paper comprehensively assesses the physical and
mechanical properties of sandwich composite material made from particles of winter rapeseed stalks,
geopolymer and reinforcing basalt lattices. The developed composite panel is designed for use
as a filler in constructions (building or building joinery). The observed properties were: bending
characteristics, internal bonding, thermal conductivity coefficient and combustion characteristics.
The results showed that the density of the particleboard has a significant effect on the resulting
mechanical properties of the entire sandwich panel. On the contrary, the density of the second layer of
the sandwich panel, geopolymer, did not have the same influence on its mechanical properties as the
density of the particleboard. The basalt fibre reinforcement lattice positively affected the mechanical
properties of sandwich composites only if it was sufficiently embedded in the structure of the particle
board. All of the manufactured sandwich composites resisted flame for more than 13 min and the fire
resistance was positively affected by the density of the geopolymer layer.
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Subject(s)
composite material, sandwich panel, rapeseed, geopolymer, reinforcing lattice