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Effect of Crumb Rubber on the Wear Tolerance of Korean Lawngrass
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  • Effect of Crumb Rubber on the Wear Tolerance of Korean Lawngrass
  • Effect of Crumb Rubber on the Wear Tolerance of Korean Lawngrass
저자명
Lee. Chung-Hwan,Kim. Ki-Sun
간행물명
한국잔디학회지
권/호정보
2003년|17권 1호|pp.19-33 (15 pages)
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한국잔디학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

영문초록

본 실험은 답압에 의한 스트레스를 경감시킬 목적으로 폐타이어 칩을 한국잔디 식재 토양내 혼합 및 표면 배토시 그 효과를 평가하고자 실시하였다. 일반적으로 잔디는 답압이 진행됨에 따라 잔디 마모와 토양 물리성이 나빠져서 생육은 감소하지만 폐타이어 칩을 토양내에 처리함으로써 토양경도, 표면 경도 등 토양 물리성을 향상시키므로 생육을 향상시킬 수 있었으며, 토양 혼합처리는 가는 입자 20% 처리구에서 좋은 토양 물리성을 보였다. 배토처리시에는 무처리구와 비교시 표면의 높은 온도와 더불어, 피복효과와 마모를 가장 많이 받는 줄기 밑부분을 보호해 줌으로써 잔디 생육을 향상시킬 수 있었으며, 굵은 입자 10cm 처리구에서 표면온도가 높았다. 무기질인 폐타이어 칩을 소량으로 토양 혼합 및 배토처리함으로써 장기적인 효과가 예상되므로 향후 잔디면 조성 및 관리시에 이용할 만한 가능성이 있다고 생각된다.

기타언어초록

The objective of this study was to evaluate the effects of crumb rubber recycled from used tires as a soil incorporation and topdressing materials on a trafficked Korean lawngrass‘Zenith’(Zoysia japonica). In Exp 1, incorporation treatments included three particle sizes (PS: coarse =4∼6.35 mm, medium =2∼4 mm, and One : less than 2 mm in diameter) and two incorporation rate (IR: 10 and 20%). Wear treatments were applied 30 passes per day by compactor weights being 60 kg with soccer shoes. Topdressing treatments included three PS and two topdressing depth (TD: 5 and 10 mm). Wear treatments were the same as described in Exp 1. In Exp 1, the treatment with medium PS+IR 20 resulted in the tendency to have high total clipping yield. There was no significant difference in clipping yield, turfgrass visual color, coverage, and root length among the treatments. Compared to control, tissue Zn levels increased about 6.5-fold by the treatments. The treatment with fine PS +IR 20 caused a less peak deceleration than coarse PS +IR 10. Total porosity, air-filled porosity, and capillary porosity increased with fine PS +IR 20. In Exp 2, compared to controls, however, there was a difference in turfgrass visual color after the termination of traffic treatment. There was no difference in root length. The treatment with fine PS + TD 10 resulted in the highest total clipping yield. As a result of soil physical analysis, soil penetration resistance was reduced by the treatments. The treatment with coarse PS resulted in a less peak deceleration than fine PS. In conclusion, turfgrass growth was increased by crumb rubber incorporation which enhanced soil physical properties. The crumb rubber topdressing was able to cushion the crown tissue area while still providing a smooth and uniform surface, improve overall turfgrass quality, and reduce compaction.