폐FRP 미분말을 재활용한 PAE 폴리머 모르타르의 물리적 특성 = The Physical Properties of PAE Polymer Motar Recycling FRP Wastes Powder

다국어 초록 (Multilingual Abstract)

In order to recycle the FRP wastes from SMC bathtubes, polymer-modified mortars containing a fine powder of fiber-rainforced plastics(FRP) as a part of the sand were prepared with various FRP replacements for sand and polymer cement rations. The polymer modifier used was polyacrylic ester(PAE) emulsion. The FRP waste fine powder was obtained by pulverizing FRP wastes. The water-cement ratio, compressive and flexural strength, water absorption and hot water immersion of the mortar were tested and the results compared to those of ordinary cement mortal and polymer-cement mortal.
As the results, compressive and flexural strengths of ordinary portland cement mortars containing FRP wastes fine powder were remarkably decreased with an increase of a content of FRP wastes fine powder. But those strengths of ordinary portland cement mortars were greatly improved by adding PAE emulsion. When the replacement ratios of FRP wastes fine powder and adding rations of PAE emulsion were 5, 10, 20wt% and fine powder were showed as much those strengths of ordinary portland cement mortar. Otherwise heat curing of PAE-modified mortar containing FRP wastes fine powder accelerated the improvement of early compressive and flexural strengths. But the compressive and flexural strengths of PAE-modified mortar containing FRP wastes fine powder were remarkably decreased after hot water immersion test.