For the purpose of producing emulsified fire proofing agent for synthetic fibers, 2,3-dibromopropylmonoamido orthophosphate[DP-AOP] and bis(2,3-dibromopropyl)monoamidoorthophosphate[(DP)2AOP] were synthesized, and their structures were identified by instrumental analysis, respectively. Using three kinds of emulsifiers, O/W emulsified fire proofing agents, DPF and DPDPF, were obtained corresponding to DP-AOP and (DP)2-AOP, respectively. Various synthetic textiles were fire-retardant treated by prepared DPF and DPDPF, and fire retardancy and tearing strength of the resulting products were tested. The results showed that as the concentration of fire proofing agents increased, fire retardancy increased, but the tearing strength much decreased, where the tendencies of DPDPF were deeper than those of DPF. But, since the fire retardancy appeared favorable in the range of 10~20wt% of DPDPF, DPDPF is proven to be a fire proofing agent useful for various synthetic textiles.

This paper presents the comparison of the test results for material behavior for dry cast steel and synthetic fiber reinforced concrete. ASTM C1609 flexural beam test were carried out for two different fiber dosages of synthetic and steel fibers. Synthetic and steel fiber dosages were 2.4 kg/m3 and 13.1 kg/m3, respectively. From the results of tests, material properties were found including; compressive strength, first-peak load, peak load, and specimen toughness. ASTM beam load- deformation plots were obtained for each fiber beam to show the fiber behavior and strengthening after the initial crack.