줄눈 채움재 크기에 따른 투수 블록 포장의 표면 침투율 = Surface Infiltration Rate of Permeable Block Pavements Depending on the Size of Filling Materials

국문 초록 (Abstract)

도시화로 인한 불투수 면적의 증가와 기후변화로 인한 강우 패턴 변화는, 도심 홍수의 발생빈도를 높이는 주요한 원인으로 파악되고 있다. 이러한 문제를 극복하기 위한 방안으로, 국제적으로 저영향개발 시설의 적용이 확산되고 있는 추세이며, 저영향개발 시설의 대표적인 예로 투수성 포장을 들 수 있다. 본 연구에서는 줄눈 채움재의 직경에 따른 투수 블록 포장의 현장 표면 침투율을 평가하기 위하여, 실증 규모의 블록 포장 주차장을 대상으로, ASTM C 1701 표준 시험법을 사용하여 침투율을 산정하였다. 줄눈 채움재의 직경이 1.5~2.5 mm인 블록 포장의 평균 침투율은 0.98 mm/s, 줄눈 채움재의 직경이 4~8 mm인 경우는 평균 침투율이 2.62 mm/s로 측정되어, 조립 줄눈 채움채를 사용한 투수 블록은 세립 줄눈 채움재를 사용한 블록과 비교해 약 2.7배의 평균 침투율을 가지는 것을 확인하였다. 블록을 제거한 상태에서의 침투율은 하부구조와 관계없이약 13.5 mm/s으로 측정되어, 측정된 블록 포장 침투율 보다 크게 커서, 시험에 사용된 블록 주차장의 경우, 하부 구조는 블록 포장의 ASTM C 1701 시험법으로 계측한 표면 침투율에 큰 영향을 미치지 못하고, 침투율은 블록과 줄눈 채움재 층의 특성에 지배되는 것으로 평가되었다.

다국어 초록 (Multilingual Abstract)

Urbanization increased the impervious coverage rapidly and the rainfall pattern changed much due to the global weather change.
As such, the peak flood discharge was raised and the travel time reduced. In order to overcome these problems, Low Impact Development (LID) techniques have been widely applied internationally, and the permeable pavement is one of notable examples of LID. In an attempt to evaluate field infiltration performance of permeable block pavement systems, the surface infiltration rate of two block parking lot testbeds which have different layer systems and sizes of filling material was investigated by using ASTM C 1701 procedure. A number of tests showed that the average surface infiltration rate was 0.98 mm/s for filler diameter 1.5~2.5 mm and 2.62 mm/s for 4~8 mm, respectively, which means that when the average diameter of the filler was increased three times, the average surface infiltration rate increased about 2.7 times. After removing blocks on the surface of pavement systems, the average surface infiltration rate was 13.5 mm/s that was much higher than the surface infiltration rate on block layer, so it was indicated that the understructure of pavement systems did not have an effect on surface infiltration rate.

목차 (Table of Contents)

• 1. 서 론
• 2. 실증 단지 및 블록 포장 시공
• 3. 시험 방법
• 4. 표면 침투율
• 5. 결 론

참고문헌 (Reference)

1 Seoul Metropolitan City, "The Ordinance on the Revision of All Ordinance on Rainwater Management"

2 Borst, M., "Surface Infiltration Rates of Permeable Surfaces: Six Month Update (November 2009 through April 2010)" Water Supply and Water Resources Division, National Risk Management Research Laboratory, U.S. Environmental Protection Agency 2010

3 Bean, E. Z., "Study on the Surface Infiltration Rate of Permeable Pavements" 2004

4 Smith, D. R., "Potential Application of ASTM C 1701 for Evaluating Surface Infiltration of Permeable Interlocking Concrete Pavements" Peoples Republic of China 2012

5 Ferguson, B. K., "Porous Pavements" CRC Press 2005

6 Smith, D.R., "Permeable Interlocking Concrete Pavement – Design Specifications Construction Maintenance" Interlocking Concrete Pavement Institute 2011

7 Winston, R. J., "Maintenance measures for preservation and recovery of permeable pavement surface infiltration rate – The effects of street sweeping, vacuum cleaning, high pressure washing, and milling" 169 : 132-144, 2016

8 "Installation manual for LID - decentralized rainwater management facilities"

9 Peter, W. B. N., "Comparing Two Methods of Determining Infiltration Rates of Permeable Interlocking Concrete Pavers" 6 (6): 2353-2366, 2014

10 "ASTM D 3385-03, Standard Test Method for Infiltration rate of Soils in Field using Double-Ring Infiltrometer"

11 "ASTM C1701/C1701M-09, Standard Test Method for Infiltration Rate of In Place Pervious Concrete"