폴리머함침콘크리트(PIC)는 보통시멘트콘크리트(OPC)에 4-6%의 폴리머를 함침시켜서 콘크리트의 기계적 강도를 300%이상 향상시키며, 동결융해에 대한 저항성과 내화학약품성 등을 현격히 개선시킬 수 있는 등 새로운 콘크리트복합재료로서 많은 장점을 가지고 있다. 그러나 콘크리트 건조공정, 진공탈기공정, 단량체함침공정, 단량체중합공정 등과 같은 복잡한 PIC 제조공정과 제조단가상의 문제로 실용화를 하는데 많은 장애를 받고 있다 그러므로 본 연구에서는 PIC 제조 공정 중에서 진공탈기공정을 생략하고, 단량체함침공정에 초음파를 사용하여 단량체의 함침량과 PIC의 기계적 물성을 개선하고자 하였다. 그결과 초음파를 사용하면 단순침지방법에 의한 것 보다 MMA의 침투량이 20%증가되며 PIC의 물성이 약 25%향상되는 것으로 나타났다.

Polymer impregnated concrete(PIC) which is made from ordinary portland cement concrete(OPC) has many merits as a new concrete composit because it can be reinforced over 300% in the mechanical strengths of concrete and very strongly increased in the durabilities of concrete from freezing-tawing and chemical solution by 4-6% impregnation of polymer in concrete. For the manufacturing of PIC, the drying process of base concrete, the vaccum evacuation process, the impregnation process and the polymerization process of monomer in situ are need. These complicate problems make slow progress to the practical using of PIC in the field. So, in this research to improve the manufacturing process and the mechanical properties of PIC, ultrasonic waves were applied to the PIC during the impregnation process. By applying the ultrasonic waves the impregnated amounts of MMA in concrete is increased about 20 % than that of simple pending method and the physical properties of PIC are increased about 25% than those of simple ponding method.

PIC PMMA Ultrasonic Waves Impregnation Methods Polymerization Mechanical Properties Durabilities

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