• Title/Summary/Keyword: CSR(Coefficient of Slip Resistance)

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Application Review of Portable Slip Meter(ONO.PPSM) (휴대형 미끄럼시험기 (ONO.PPSM)의 적용성 검토)

  • Baek, Koen-Hyuk;Shin, Yoon-Ho;Choi, Soo-Kyung
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2009.05b
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    • pp.219-223
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    • 2009
  • This paper is the result of investigation of ONO PPSM(ONO PORTABLE SLIP METER) by way of experiment to see the validity as a slip meter, ONO PPSM is a portable slip meter which was made up for the weak points of O-Y PSM(ONO-YOSHIOKA PULL SLIP METER) which takes an accurate measurement of the slip resistance but very heavy and hard to operate. In order to know the stability of the measurement result of ONO PPSM, we measured the slip resistance against 4 different kind of floor materials. As a result of this, we found out that the coefficient of variability of CSR' is less than 0.05. Also, we verified the relation between CSR' and CSR. more specifically by doing the slip test against 7 different kinds of inorganic matter floor materials. We increased the usability of ONO PPSM as a slip meter by suggesting the method of sharing the evaluation index of slip of CSR' and C.S.R.

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Development of Calibration Equation of Portable Slip Meter(ONO·PPSM) through Comparative test of O-Y·PSM and ONO·PPSM (경사인장형 미끄럼시험기(O-Y·PSM)와의 비교실험을 통한 휴대형 미끄럼시험기(ONO·PPSM)의 교정식 작성)

  • Shin, Yoon-Ho;Choi, Soo-Kyung
    • Journal of the Korea Institute of Building Construction
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    • v.9 no.5
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    • pp.155-161
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    • 2009
  • This paper is the result of an investigation of a PORTABLE SLIP METER(ONO PPSM) by means of an experiment to determine its validity as a slip meter. ONO PPSM is a portable slip meter that was designed to address the weak points of PULL SLIP METER(O-Y PSM), which can be used to obtain an accurate measurement of slip resistance, but is very heavy and difficult to operate. To determine the stability of the measurement result of ONO PPSM, we measured the slip resistance against 4 different kind of floor materials. Our findings showed that the coefficient of variability of CSR' is less than 0.05. Furthermore, we verified the relationship between CSR' and CSR. More specifically, by performing the slip test against 7 different kinds of inorganic matter floor materials, we increased the usability of ONO PPSM as a slip meter by suggesting a method of sharing the evaluation index of slip of CSR' and C.S.R.

Relationship between RCOF Calculated from the Results of Gait Analysis and CSR Measured Using O-Y·PSM (O-Y·PSM에 의한 CSR과 보행분석에 의한 RCOF와의 관계)

  • Roh, Yong-Woon;Choi, Soo-Kyung
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2013.05a
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    • pp.59-61
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    • 2013
  • The purpose of this study was to present the necessary data concerning the selection and development of floor-coverings in view of slipperiness by comparing the relationship between CSR measured with O-Y·PSM and RCOF calculated from the result of gait analysis. CSR was calculated from maximum tensile load(Pmax) divided by perpendicular load(785N) when pulled 18 degrees upward the moment the bottom of the slip piece contacted the surface of the test piece. RCOF was calculated based on Fy/Fz from when horizontal load reached the maximum point within the sections from the moment the front of outsole touched the test piece to when pulled off the test piece. The results from the research were as follows: (1) Range of CSR was 0.15-1.02, which meant the differences of slipperiness of the test pieces definitely showed up. (2) RCOF are inadequate to express the characteristic about the slipperiness of the floors, since there were no differences between the test pieces.

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Extraction of Proper Mixture Ratio of SDS Solution as the Substitute of Soapy Water in a Slip Test (미끄럼시험에서 비눗물을 대체하기 위한 SDS 수용액의 적정 혼합비율 도출)

  • Kim, Dae-Kyu;Shin, Yun-Ho;Choi, Soo-Kyung
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2016.05a
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    • pp.83-84
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    • 2016
  • For the slip resistance test of shower room floor, the "O-Y Pull Slip Meter method (O-Y·PSM)" regulated under KS M 3510. This test method uses cooking oil as a substitute of soapy water, and thus it does not reflect the real condition. In this study, on 10 types of floor material samples, the Coefficient of Slip Resistance Bath (CSR·B) on bare foot between 10 types of body wash solution and 6 types of SDS solution was compared. The body wash solution is a mixture of soap and water in 1:20 ratio. As a result, SDS 0.1% solution was the most suitable for a substitute of soapy water in shower.

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Experimental Examination of Nonslip Technique of Floors (바닥의 미끄럼 방지기술에 관한 실험적 검토)

  • Shin, Yoon-Ho;Baek, Koen-Hyuk;Choi, Soo-Kyung
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2009.05b
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    • pp.235-238
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    • 2009
  • The study of our investigating and analyzing through experiments the performance on nonslip techniques, which has been nationally applied and represented, showed the following results. 1) In wearing shoes condition, regardless the shape of the surface and surface condition of the object, it satisfied the performance standard in cleaned and dried condition and the pulverulent body mixed liquid dispersed moisture condition. However, for the case of the non-slip agent treatment, not likely as the non-slip tape treatment case, the effect was not approved as it shows almost the same CSR as none treatment. 2) In bare foot condition, it satisfied the performance standard in most of the objects except for the Ceramic tile (A), Ceramic tile (B), pure and soapy water dispersed condition.

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