A Fire Resistant and Energy Absorbing Sandwich Core Material
Description LFRM is a fly ash based foam that has an exceptional combination of fire resistance properties as well as thermal, physical, and mechanical properties. It is especially useful where fire and/or explosion containment issues require a light-weight structural component.
Introduction
LFRM is a low resin content syntactic foam material made from fly ash as the major component. This factor allows for the material to be classified as a green material. LFRM is a light-weight, moldable material and is a relatively inexpensive core material that has outstanding fire resistance and does not release an appreciable amount of toxic gases in a fire. The physical and mechanical properties are tailorable to suit specific applications. Evolution of LFRM and an application is shown in at thislink.Properties (Physical, Mechanical, Fire, Toxicity & Energy absorption) of LFRM are available at thispage.LFRM is aslo referred to as Eco-Core in some of the publications.
The LFRM is a suitable material for use in applications where two or more of following properties are important to the user:
Fire resistance and Containment Energy absorption Thermal stability Mechanical properties Water immersion resistance Thermal insulation
Applications include:
Marine Aircraft Ground transportation Subway Trains Military Buildings High temperature molds
Availability
Currently LFRM panels are available up to 28 x 28 inches, in a thickness range of 0.25 to 2.0 inches. LFRM can be molded to a variety of configurations to meet customer needs.The sandwich panels may be supplied with face sheets as specified by the customer. The nominal density of LFRM is 0.50 g/cc but it can be supplied at densities from 0.4 to 0.6 with a predictable change in the mechanical properties.
Contact Robert Sadler, Composite Engineer at 336-542-5604(O) or 336-340-3254 (Cell)