DOI QR코드

DOI QR Code

다량 첨가된 플라이애시 콘크리트의 기초 역학적 성능 평가

An Evaluation of Basic Mechanical Performance for High Volume Fly Ash Concrete

  • 유성원 (우석대학교 토목환경공학과) ;
  • 권성준 (한남대학교 건설시스템공학과)
  • Yoo, Sung-Won (Department of Civil and Environmental Engineering, Woosuk University) ;
  • Kwon, Seung-Jun (Department of Civil Engineering, Hannam University)
  • 투고 : 2014.09.09
  • 심사 : 2014.09.23
  • 발행 : 2014.09.30

초록

플라이애시가 다량 첨가된 콘크리트, HVFA의 구조 기초 거동을 평가하기 위하여 플라이애시 혼입률과 압축강도를 변수로 하여 탄성계수, 응력-변형률 관계 및 부착강도 실험을 수행하였다. 실험결과에 의하면, 탄성계수는 콘크리트의 압축강도와 플라이애시 혼입률에 어느 정도 영향을 받는 것으로 나타났으며, 극한변형률 역시 기존의 설계식과 다소 차이가 있는 것으로 나타났다. 반면에 HVFAC의 탄성계수 및 부착강도는 일반 콘크리트와의 차이가 크지 않은 것으로 나타났다.

For evaluating basic structural behavior of HVFA (High Volume Fly Ash) concrete, several tests are performed considering different ratios of fly ash replacement and structural evaluation regarding compressive strength, elasticity modulus, stress-strain relationship, and bond strength is also performed. Test results show that elasticity modulus of HVFA concrete has close relationships with compressive strength and fly ash replacement ratio. The ultimate strain shows slight difference from domestic design code. On the other hand, there are no differences between general concrete and HVFA concrete for elasticity modulus and bond strength.

키워드

참고문헌

  1. Alasali M, Malhotra V. (1991). Role of concrete incorporating high volumes of fly ash in controlling expansion due to alkaliaggregate reaction, Journal of ACI Material, 88.
  2. Bilodeau A, Sivasundaram V, Painter K, Malhotra V. (1994). Durability of concrete incorporating high volumes of fly ash from sources in the USA, Journal of ACI Material, 91.
  3. Delair S, Prud'homme E, Peyratout C, Smith A, Michaud P, Eloy L, et al. (2012). Durability of inorganic foam in solution: the role of alkali elements in the geopolymer network, Corros Sci, 59, 213-221. https://doi.org/10.1016/j.corsci.2012.03.002
  4. Jung, S. H., Kwon, S. J. (2013). Engineering properties of qcement mortar with pond ash in South Korea as construction materials: from waste to concrete, Central European Journal of Engineering, VERSITA, 3(3), 522-533. https://doi.org/10.2478/s13531-012-0068-3
  5. KCL - Korea Conformity Laboratories (2010). Standardization Technology for The Environmental- Friendly Utilization of Pond Ash, Technical Report, R-2007-2-151, 2010 [in Korean].
  6. Kim M. H., Choi S. J. (2002). A study on concrete with high volume of fly ash considering replacement method and ratio, Journal of Korean Architecture Institute, 18, 123-130 [in Korean].
  7. Kim S. C., Ahn S. K. (2009). Mix design and characteristics of compressive strengths for Bottom foam concrete associated with the application of bottom ash, Journal of Korea Concrete Institute, 21, 283-290 [in Korean]. https://doi.org/10.4334/JKCI.2009.21.3.283
  8. Lee, H. K., Kim, H. K., Hwang, E. A. (2010). Utilization of power plant bottom ash as aggregates in fiber reinforced cellular concrete, Waste Manage, 30, 274-284. https://doi.org/10.1016/j.wasman.2009.09.043
  9. Muller U., Rubner K. (2006). The microstructure of concrete made with municipal waste incinerator bottom ash as an aggregate component, Cement Concrete Research, 36, 1434-1443. https://doi.org/10.1016/j.cemconres.2006.03.023
  10. Song, H. W., Kwon, S. J. (2009). Evaluation of chloride penetration in high performance concrete using neural network algorithm and micro pore structure, Cement Concrete Research, 39, 814-824. https://doi.org/10.1016/j.cemconres.2009.05.013
  11. Thomas M. D. A., Bamforth P. B. (1999). Modeling chloride diffusion in concrete: effect of fly ash and slag, Cement Concrete Research, 29, 487-495. https://doi.org/10.1016/S0008-8846(98)00192-6
  12. Zuhua Zhang, John L. Provis, Andrew Reid, Hao Wanga (2014). Geopolymer foam concrete: An emerging material for sustainable construction, Construction and Building Materials, 56, 113-127. https://doi.org/10.1016/j.conbuildmat.2014.01.081

피인용 문헌

  1. An Evaluation of Applicable Feature of Structural Member Using High Volume Fly-Ash Concrete vol.3, pp.2, 2015, https://doi.org/10.14190/JRCR.2015.3.2.109