[논문]비파괴 측정법을 이용한 지연제 첨가 시멘트 페이스트의 응결 평가

안유리; 전유빈; 임홍재

doi:10.11112/jksmi.2022.26.4.48

비파괴 측정법을 이용한 지연제 첨가 시멘트 페이스트의 응결 평가
Setting Time Evaluation on Cement Paste with Retarder Using Non-Destructive Measurements 원문보기

한국구조물진단유지관리공학회 논문집 = Journal of the Korea Institute for Structural Maintenance and Inspection, v.26 no.4, 2022년, pp.48 - 56

안유리 (부산대학교 사회환경시스템공학과) , 전유빈 (한국과학기술원 건설및환경공학과) , 임홍재 (부산대학교 사회환경시스템공학과)

초록
AI-Helper

시멘트계 재료의 응결시간 제어는 초기 콘크리트 성능 확보를 위한 중요한 평가 요소 중 하나이다. 최근 평균 기온 상승으로 특정 수화물 생성 억제 및 응결시간 제어를 위한 지연제의 사용이 권장되고 있다. 비카트 침 등 관입저항 측정 시험법의 한계를 극복하기 위해 응결시점 평가를 위한 다양한 비파괴 평가 기법이 제안되고 있지만, 지연제 사용에 따른 비파괴 평가법 사용 가능성 확보를 위해서는 여전히 실험적 연구 수행이 요구되고 있다. 본 연구에서는 타타르산 지연제를 사용하여 시멘트 페이스트의 응결 지연을 유도하고, 비카트 침 시험과 함께 전기비저항과 초음파 속도 모니터링을 수행하였다. 두 비파괴 측정 결과의 상승시점 결정을 통해 시멘트 페이스트의 응결시점을 평가하고, 비카트 침 측정을 통한 초결 및 종결 시점과의 분석으로 지연제 사용에 따른 응결 지연 현상 평가 가능성을 확인하였다. 또한 전기비저항 상승시점에 대한 X선 회절 분석을 통해 타타르산 지연제 사용에 따른 수화반응 변화를 측정하고 전기비저항 측정의 응결 지연 평가에 영향을 주는 주요 수화물을 확인하였다.

Abstract ▼ AI-Helper

Controlling the setting time of cementitious materials is one of the most important factors in securing early-age performance of concrete structures. Recently, the use of retarding admixtures, which enable the inhibition of some hydration products to control the securing time due to average temperature rise is suggested. Although various non-destructive evaluation methods have been proposed to evaluate cement hydration and hardening of cement-based materials to overcome the limitations of Vicat needle test, experimental research is still required to use the non-destructive evaluation method with added retarding admixtures. In this study, measurements of electrical resistivity and ultrasonic wave velocity in early-aged cement pastes were performed according to the addition of retarding admixture(tartaric acid). The setting time of the cement pastes was evaluated by obtained rising time of the both non-destructive measurements. As a result, the possibility of evaluating the setting delay in cement pastes was confirmed through comparative analysis with the initial and final setting times by Vicat test. In addition, X-ray diffraction results at the rising time of electrical resistivity showed a key hydration product affecting the setting delay.

주제어

표/그림 (14)

그림 Fig. 1 Wenner's 4-electrode method
그림 Fig. 2 XRD pattern of the cement
표 Table 1 Physical properties and chemical composition of cement
표 Table 2 Mixture proportions of the cement paste samples
그림 Fig. 3 Electrical resistivity measurement system
그림 Fig. 4 Ultrasonic pulse velocity measurement system
그림 Fig. 5 Measured electrical resistivity of samples
표 Table 3 Initial and final setting time of cement pastes
그림 Fig. 6 Measured ultrasonic wave velocity of samples
표 Table 4 Rising time of electrical resistivity in samples
표 Table 5 Rising time of ultrasonic wave velocity in samples
그림 Fig. 7 Comparison of the non-destructive test results for the evaluation of the hydration in samples with different tartaric acid ratio: (a) 0%, (b) 0.01%, (c) 0.05%, and (d) 0.08%
그림 Fig. 8 XRD patterns for (a) raw cement, (b) D0-12h, and (c) D0-16h sample. C₂S(COD 9012790); C₃S(COD 1540706); C₃A(COD 9015967); Gypsum(COD 9006647); Calcite(COD 9013566); Ca(OH)₂(COD 1529453); Ettringite(COD 9012923); C-S-H(Jeong et al., 2016)
그림 Fig. 9 XRD patterns for D0-16h and D3-16h sample

참고문헌 (35)

Pang, X., Sun, L., Sun, F., Zhang, G., Guo, S., and Bu, Y. (2021), Cement Hydration Kinetics Study in The Temperature Range from 15 ℃ to 95 ℃, Cement and Concrete Research, 148, 106552.
Neville, A.M., (1998), Properties of Concrete 4th. Edition, John Wiley & Sons Inc, New York, Pitman Publishing Ltd, London, 844.
Young, J. F. (1972), A Review of The Mechanisms of Set-Retardation in Portland Cement Pastes Containing Organic Admixtures, Cement and Concrete Research, 2(4), 415-433.

상세보기
Carino, S. J. (1994), Nondestructive Testing of Concrete: History and Challenges, Concrete Technology: Past, Present and Future, ACI SP-144, 623-678.
Carino, S. J. (1995), The Use of Temperature as An Indicator of Setting Time of Mortar Specimens, Undergraduate Research Project, Cornell University, Ithaca, NY.
Pinto, R. C., and Hover, K. C. (1999), Application of Maturity Approach to Setting Times, Materials Journal, 96(6), 686-691.

상세보기
Torrents, J. M., and Pallas-Areny, R. (1997), Measurement of Cement Setting by Impedance Monitoring, In IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings, IEEE, 1089-1093.
Lee, H. K., Lee, K. M., Kim, Y. H., Yim, H., and Bae, D. B. (2004), Ultrasonic In-Situ Monitoring of Setting Process of HighPerformance Concrete, Cement and Concrete Research, 34(4), 631-640.

상세보기
Chung, C. W., Suraneni, P., Popovics, J. S., and Struble, L. J. (2012), Setting Time Measurement Using Ultrasonic Wave Reflection. ACI Materials Journal, 109(1), 109-117.

상세보기
Trtnik, G., Valic, M. I., and Turk, G. (2013), Measurement of Setting Process of Cement Pastes Using Non-Destructive Ultrasonic Shear Wave Reflection Technique, NDT & E International, 56, 65-75.

상세보기
Yim, H. J., Kim, J. H., and Shah, S. P. (2014), Ultrasonic Monitoring of The Setting of Cement-Based Materials: Frequency Dependence, Construction and Building Materials, 65, 518-525.

상세보기
Yim, H. J., Bae, Y. H., and Jun, Y. (2021), Hydration and Microstructural Characterization of Early-Age Cement Paste with Ultrasonic Wave Velocity and Electrical Resistivity Measurements, Construction and Building Materials, 303, 124508.

상세보기
Heikal, M., Morsy, M. S., and Aiad, I. (2005), Effect of Treatment Temperature on The Early Hydration Characteristics of Superplasticized Silica Fume Blended Cement Pastes, Cement and Concrete Research, 35(4), 680-687.

상세보기
Schwarz, N., DuBois, M., and Neithalath, N. (2007), Electrical Conductivity Based Characterization of Plain and Coarse Glass Powder Modified Cement Pastes, Cement and concrete composites, 29(9), 656-666.

상세보기
Koleva, D. A., Copuroglu, O., Van Breugel, K., Ye, G., and De Wit, J. H. W. (2008), Electrical Resistivity and Microstructural Properties of Concrete Materials in Conditions of Current Flow, Cement and Concrete Composites, 30(8), 731-744.

상세보기
Yim, H. J., Lee, H., and Kim, J.H. (2017), Evaluation of Mortar Setting Time by Using Electrical Resistivity Measurements, Construction and Building Materials, 146, 679-686.

상세보기
Campo, M. A., Woo, L. Y., Mason, T. O., and Garboczi, E. J. (2002), Frequency-Dependent Electrical Mixing Law Behavior in Spherical Particle Composites, Journal of electroceramics, 9(1), 49-56.

상세보기
Wang, Z., Zeng, Q., Wang, L., Yao, Y., and Li, K. (2015), Electrical Resistivity of Cement Pastes Undergoing Cyclic Freeze-Thaw Action, Journal of Materials in Civil Engineering, 27(1), 04014109.

상세보기
Topcu, I. B., Uygunoglu, T., and Hocaoglu, I. (2012), Electrical Conductivity of Setting Cement Paste with Different Mineral Admixtures, Construction and Building Materials, 28(1), 414-420.

상세보기
Andi, M., and Yohanes, G. R. (2019), Experimental Study of Crack Depth Measurement of Concrete with Ultrasonic Pulse Velocity (UPV), In IOP Conference Series: Materials Science and Engineering, IOP Publishing, 673(1), 012047.
Bishop, M., and Barron, A. R. (2006), Cement Hydration Inhibition with Sucrose, Tartaric Acid, and Lignosulfonate: Analytical and Spectroscopic Study, Industrial & engineering chemistry research, 45(21), 7042-7049.

상세보기
Rai, S., Singh, N. B., and Singh, N. P. (2006), Interaction of Tartaric Acid during Hydration of Portland Cement, Indian journal of chemical technology, 13(3), 255-261.

상세보기
Stauffer, J. D., Woodward, C. B., and White, K. R. (2005), Nonlinear Ultrasonic Testing with Resonant and Pulse Velocity Parameters for Early Damage in Concrete, ACI materials journal, 102(2), 118.

상세보기
Zhang, J., and Scherer, G. W. (2011), Comparison of Methods for Arresting Hydration of Cement, Cement and Concrete Research, 41(10), 1024-1036.

상세보기
Jeong, Y., Oh, J. E., Jun, Y., Park, J., and Sohn, S. G. (2016), Influence of Four Additional Activators on Hydrated-Lime [Ca(OH)2] Activated Ground Granulated Blast-Furnace Slag, Cement and Concrete Composites, 65, 1-10.

상세보기
Zhang, Y., Zhang, W., She, W., Ma, L., and Zhu, W. (2012), Ultrasound Monitoring of Setting and Hardening Process of Ultra-High Performance Cementitious Materials, Ndt & E International, 47, 177-184.

상세보기
ASTM C305-14, Standard Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency, ASTM International, West Conshohocken, PA, 2014.
ASTM C191-21, Standard Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle, ASTM International, West Conshohocken, PA, 2021.
ASTM C597-16, Standard Test Method for Pulse Velocity Through Concrete, ASTM International, West Conshohocken, PA, 2016.
Han, C. G., Han, M. C., Yoon, C. W., and Sim, B. K. (2001), Setting and Compressive Strength Properties of Cement Mortar Using Super Retarding Agent, Journal of the Architecture Institute of Korea Structure & Construction, AURIC, 17(10), 87-94.
Lee, H. K., Lee, K. M., Kim, Y. H., and Yim, H. J. (2002), Estimation of Setting Time and Early-Age Strength of Concrete Using the Ultrasonic Pulse Velocity, Journal of the Korean Society for Nondestructive Testing, 22(3), 292-303.
Kim, D. J., Kim, S. C., Han, W., Lee, J. S., and Byun, Y. H. (2020), Evaluation of Early-age Properties of Controlled Low Strength Material Using Non-destructive Testing, Journal of The Korean Society of Agricultural Engineers, 62(2), 31-38.
Lee, B. H., and Lee, S. C. (1999), Major Foundational Techniquess for Grounding Systems, Uije Publication Ltd, 45-51.
Hwang, G. R., and Shin, S. W. (2012), Setting Monitoring of Hydration Cement-Based Materials Using Electrical Impedance Spectroscopy, Proceedings of Korean Society of Civil Engineers Conference, Korean Society of Civil Engineers, Gwangju, Korea, 2449-2452.
Shin, S. W., Hwang, G., and Lee, C. J. (2014), Electrical Impedance Response Model of Concrete in Setting Process, Journal of the Korean Society of Safety, 29(5), 116-122.

표제어: PCR

동의어: Packet Collision Rate

용어 설명 출처 목록 (6)

용어 설명: PCR은 세균 특이성이 있는 primer를 이용하여 적은 수의 세균이 있을지라도 쉽게 검출할 수 있는 유용한 방법이며, 이를 이용하여 구강 내 치면세균막이나 타액에서 직접 세균을 검출할 수 있게 되었다[8].

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 논문명, 저널/프로시딩명, 저자 , 발행년, 권, 호, 시작페이지, 끝페이지, 발행기관 관리번호, 논문명, 대등논문명, 저자 , 저널/프로시딩명, 발행기관, 발행년, 발행언어, 권, 호, 시작페이지, 끝페이지, ISBN, ISSN, 주제분야, 키워드, 초록(한글), 초록(영문), 저자(소속기관)
저장형식	Text(ASCII format) Excel format RefWorks Direct Export RIS format (for Reference Manager, ProCite, EndNote), Scholar's Aids, Mendeley
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증