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FRP방수용수지의 경화과정의 수축력 측정방법 개발과 수축력측정
표순주,田中亨二,정상진 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)
Unsaturated polyester resin for FRP waterproofing membranes have a disadvantage of shrinking in the process from liquid to solid state. It is fundamentally needed to estimate induced contraction stress of the resin for designing a good waterproofing membrane system. A new technique, in which the resin is poured in a floating frame on liquid of large specific gravity and induced contraction stress is measured, was proposed in the paper. The technique was applied for some resin samples and it was made clear that contraction stress mainly developed in a few ten hours and reached to the levels of 0.1-0.4N/㎣.
옥상 녹화용 방수층에의 지하경(地下莖)의 근압(根壓) 측정 장치 개발과 측정 결과
표순주(Pyo Soon-Ju) 대한건축학회 2008 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.28 No.1(구조계)
The resistance of membranes to root penetration is also important for green roof as well as the other performances for waterproofing. For suitably estimate membranes for this purpose, the actual penetrating force of roots or rhizomes tips of plants to membranes has to make clear. Using the inherent nature of them seeking and growing for moisture, the apparatus for measuring penetrating force was developed. Penetrating forces of bamboo grass and lawn grass were measured from spring to summer. They increased in a few weeks with periodically swinging in day and night, and the maximum forces of 9.8N and 6N were observed respectively.
옥상 녹화용 방수층의 내근성 평가 방법 제안 및 근압(根壓) 측정 장치의 개발
표순주(Pyo Soon-Ju) 대한건축학회 2009 大韓建築學會論文集 : 構造系 Vol.25 No.1
The resistance of membranes to root penetration is also important for green roof as well as the other performances for waterproofing. For suitably estimate membranes for this purpose, the actual penetrating force of roots or rhizomes tips of plants to membranes has to make clear. Using the inherent nature of them seeking and growing for moisture, the apparatus for measuring penetrating force was developed. Penetrating forces of bamboo grass and lawn grass were measured from spring to summer. They increased in a few weeks with periodically swinging in day and night, and the maximum forces of 9.8N and 6N were observed respectively.
옥상 녹화용 방수층 일반부의 내근성 평가를 위한 시험장치 개발
표순주(Pyo Soon-Ju) 대한건축학회 2008 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.28 No.1(구조계)
A penetrating needle into a membrane was first developed on the basis 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 l㎜ displacement. These values are considered to be useful as indices for the estimation of the waterproofing membranes' root resistance.
옥상 녹화용 방수층 일반부와 조인트부의 내근성 평가를 위한 시험장치 개발
표순주(Pyo Soon-Ju) 대한건축학회 2009 大韓建築學會論文集 : 構造系 Vol.25 No.1
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.
옥상용 방수시트의 표면색상이 건축물에 미치는 열특성의 분석
표순주(Pyo,soon-Joo),박성우(Park,Song-Woo),고진수(Ko,jin-soo) 한국구조물진단유지관리학회 2010 한국구조물진단학회 학술발표회논문집 Vol.2010 No.2
This experiment is measuring change of temperature by surface color of waterproof sheet for rooftop that receive the biggest effect in sunlight. There is purpose of research to utilize by plan for saveenergy of building examining result of this experiment.