옥상 녹화용 방수층 일반부와 조인트부의 내근성 평가를 위한 시험장치 개발

다국어 초록 (Multilingual Abstract)

A penetrating needle into a membrane was first developed on the basis and lap joints of the observation of bamboo grass tips and lawn grass tips. Then, the penetrating load of the needle was measured for various waterproofing membranes at the needle displacement speed of 1㎜/min. These two types of grass were also planted in the containers, inside of which the waterproofing membranes were applied. After the rearing of 1 year， the membranes were inspected. The two results of each membrane type were compared. We were interested in the maximum strength and the strength at 1㎜ displacement. These values are considered to be useful as indices for the estimation of the waterproofing membranes' root resistance.
The resistance of the membranes at lap joints having non adhesives and different bonding strengths was determined as a measure of its vulnerability to root penetration. Results from field tests indicated that bamboo grass tips (rhizome) easily penetrated lap joints of non?adhesive membranes. Hence it was evident that waterproofing membrane systems having nonadhesive overlapped joints do not provide adequate resistance to root penetration of the membrane. The resistance to root penetration is dependent on the adhesive strength of the lap joint. The specimens with lap joints having lower bonding strengths were readily penetrated by the rhizome. From this knowledge, a test method was developed to assess the expected resistance of membrane lap joints to the penetration of a needle. The needle, in essence, emulated the shape of bamboo grass tips. Thereafter, the test result from field test on the resistance of membrane to the penetration of roots were compared to those obtained from tests using a penetrating needle. Results from the penetrating needle test indicated that the resistance measured at a 10 ㎜ displacement of needle was effective means of evaluating the resistance of membrane lap joints to the penetration of roots.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 시험용 모의 바늘의 제작
• 3. 방수층 일반부의 침입력 측정 장치와 측정 방법
• 4. 실제 식물을 이용한 일반부의 내근성 시험
• 5. 고찰
• 6. 방수층 조인트부의 침입력 측정 장치와 측정 방법
• 7. 실제 식물을 이용한 조인트부에서의 지하경 및 뿌리의 신장 관찰
• 8. 실 식물을 이용한 조인트부의 내근성 평가 시험 방법의 검토
• 9. 결론
• 참고문헌

참고문헌 (Reference)

1 표순주, "녹화용 방수층의 내근성 평가 방법 제안 및 근압 측정 장치의 개발"

2 表淳珠, "根先の防水層侵入力の測定" A-1 : 797-780, 2005

3 澤西良三, "屋上緑化防水システムのための耐根性能の評価・その２・耐根性能評価試験方法" 803-804, 2005

4 橘大介, "屋上緑化防水システムのための耐根性能の評価・その１・耐根性能評価試験の考え方" A : 801-802, 2005

5 建築保全センター, "公共建築改修工事標準仕様書、9章6節屋上緑化改修"

6 P.Fischer, "Procedure for investigation resistance to root penetration at green‐roof sites" 202

7 "DIN 4062: Testing the Weed Resistance of Everlast‐Roofskin"