Abstract
배수성포장은 다양한 장점을 가지고 있어 점차 보편화되고 있는데, 주요 효과로는 수막현상 최소화, 빗물에 의한 미끄럼저항값을 일정하게 유지하고, 차량과 포장체 사이에서 발생하는 소음을 저감시켜준다. 도로소음 및 수막현상 감소효과에 대한 많은 연구가 수행되었다. 본 연구의 목적은 배수성 포장 표층의 역학적 특성(강도 및 탄성계수)을 평가하는 것이다. 시험에 사용된 시편은 선회다짐기를 이용하여 제작하였다. 배수성포장의 상부표층 및 하부표층용 시편을 실험에 이용하였다. 마샬안정도시험(KS F 2377), 자유단공진주시험(KS F 2730), 일축압축시험(KS F 2314), 슈미트햄머시험 등을 수행하였다. 일축압축강도 및 슈미트햄머를 이용한 강도값을 비교 분석하였다. The Porous pavement gains popularity because of several benefits. It is to minimize hydro-planning condition, spraying condition, and splash to increase friction resistance, and decrease noise. Also, other studies showed that it is important to have appropriate porosity to reduce noise and water flush. The purpose of this study is an evaluation on the mechanical properties of asphalt pavements for surface course. In this study the specimen was manufactured using the Gyratory compactor in order to compact the strengthened surface course that involved the two-layer pavement. This study is conducted by using Marshall stability test(KS F 2377), Impact resonance test, Schmidt hammer test(KS F 2730), and the Uniaxial compression test(KS F 2314). Using the Uniaxial compression test and Schmidt hammer test, the values of compressive strength and bearing capacity were measured, and the modulus of elasticity for each specimen was respectively measured using the Uniaxial compression test, Impact Resonance test.
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