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탄소나노튜브를 혼입한 변형경화형 시멘트 복합체의 인장변형감지성능
윤다애 ( Youn Da-ae ),임성훈 ( Lim Seong-hoon ),장아연 ( Jang Ah-yeon ),장대희 ( Jang Dae-hee ),윤현도 ( Yun Hyun-do ) 한국구조물진단유지관리공학회 2019 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.23 No.1
In this research, Sensing Performance in Tensile Strain of Strain-Hardening Cement Composites by Containing of Carbon nanotube have been studied. The ultimate strength and strain were improved with increasing in amounts of CNT, and fractional change in resistivity were improved when same tensile strain. and %LE were decreased with increasing in amounts of CNT.
윤다애 ( Youn Da Ae ),김지현 ( Kim Ji Hyeon ),임성훈 ( Lim Seong Hoon ),장아연 ( Jang Ah Yeon ),윤현도 ( Yun Hyun Do ) 한국구조물진단유지관리공학회 2018 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.22 No.2
The study was conducted to evaluate the penetration performance of Surface Protection Material(SPM) according to the particle size distribution of fine aggregate. The fine three types of aggregates were used, and the amounts of SPM were applied 0.13, 0.25, 0.36, and 0.51 kg/㎡. Test results indicated that the penetration depth of SPM were improved with increasing the amounts of application of SPM. And The penetration depth of SPM were improved with increasing the percentage of passing weight of size of sieve between 0 and 1.25mm.
재령에 따른 CNT를 혼입한 변형경화형 시멘트 복합체의 자기감지성능
윤다애 ( Youn Da-ae ),임성훈 ( Lim Seong-hoon ),장아연 ( Jang Ah-yeon ),장대희 ( Jang Dae-hee ),윤현도 ( Yun Hyun-do ) 한국구조물진단유지관리공학회 2019 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.23 No.1
This study was conducted to evaluate the effect of self-sensing performance on strain-hardening cement composite containing CNT by curing age. The mixing amount of CNT was set at 1.0%, and SHCC fibers were mixed with PE 1.0% and steel fiber 0.5%. The electrical resistance measurement for the tensile strain sensing performance was based on AC method and 4 probe methods. Test results indicated that electrical sensitivity of SHCC decreased with an increase in curing age.