JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Development of a Sprayable Ductile Fiber Reinforced Cememtitious Composite(ECC) Based on Micromechanics and Rheological Control
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Development of a Sprayable Ductile Fiber Reinforced Cememtitious Composite(ECC) Based on Micromechanics and Rheological Control
Kim, Yun-Yong;
  PDF(new window)
 Abstract
Sprayable high ductile fiber-reinforced cementitious composite (ECC), which exhibits tensile strain-hardening behavior in the hardened state, while maintaining sprayable properties in the fresh state, has been developed by employing parallel control of micromechanical design and rheological process design. Initially, micromechanical tools were adopted to properly select the matrix, fiber, and interface properties, and also to exhibit strain-hardening and multiple cracking behaviors in the ECC composites. Within the pre-determined micromechanical constraints, the fluid properties were controlled by the rheological process design to develop flocculations between cementitious particles at a proper rate. The sprayable properties of ECC mix were then developed by the controlled rheological properties of fresh matrix and the uniform dispersion of fibers. A series of spray tests showed the excellent pumpability, sprayability, and rebound property of tile sprayable ECC. Subsequent uniaxial tensile tests demonstrated that the mechanical performance of sprayed ECC is comparable to that of ECC cast with external consolidation, for the same mix design.
 Keywords
sprayable ECC;micromechanical principle;tensile strain-hardening behavior;pumpability;sprayability;
 Language
Korean
 Cited by
1.
배합 및 양생조건이 폴리프로필렌섬유보강 초고강도 시멘트 복합체의 강도발현 특성에 미치는 영향,소형석;진성훈;

대한건축학회논문집:구조계, 2010. vol.26. 5, pp.75-82
2.
ECC로 보강한 비보강 조적 벽체의 횡력 저항 성능 향상,최현기;박병규;배백일;최창식;

대한건축학회논문집:구조계, 2010. vol.26. 12, pp.3-10
3.
ECC와 고장력 철근으로 보강된 철근콘크리트 보의 휨 실험,조현우;방진욱;한병찬;김윤용;

한국콘크리트학회논문집, 2011. vol.23. 4, pp.503-509 crossref(new window)
4.
방호·방폭용 뿜칠형 고성능 섬유보강 시멘트 복합재료 개발을 위한 레올로지 특성 연구,최연왕;최병걸;박만석;성돈;

한국건설순환자원학회논문집, 2014. vol.2. 3, pp.188-195 crossref(new window)
1.
Flexural Experiments on Reinforced Concrete Beams Strengthened with ECC and High Strength Rebar, Journal of the Korea Concrete Institute, 2011, 23, 4, 503  crossref(new windwow)
2.
Lateral Resistance of Unreinforced Masonry Walls Strengthened With Engineered Cementitious Composite, International Journal of Civil Engineering, 2016, 14, 6, 411  crossref(new windwow)
3.
A Study on the Rheology Properties for Development of Sprayed High Performance Fiber Reinforced Cementitious Composites for Protection and Blast Resistant, Journal of the Korean Recycled Construction Resources Institute, 2014, 2, 3, 188  crossref(new windwow)
 References
1.
Li, V.C., 'Advance in ECC Research,' ACI SpecialPublication on Concrete: Material Science toApplications, SP 206-23, American Concrete Institute,2002, pp.373-400

2.
Li, V.C., Wang, S., and Wu, C., 'Tensile Strain-hardening Behavior of PVA-ECC,' ACI MaterialsJoumaI, Vol.98, No.6, 2001, pp.483-492

3.
Kong, H.J., Bike, S.G., and Li, V.C., 'ConstitutiveRheological Control to Develop a Self-ConsolidatingECC Reinforced with Hydrophilic Po1y(viny1 alcohol)Fibers,' Journal Cement and Concrete Composites,Vol 25, No.3, 2003, pp.333-341 crossref(new window)

4.
Li, V.C., C. Wu, S. Wang, A. Qgawa, and T. Saito,'Interface Tailoring for Strain-hardening PVA-ECC,' ACI Materials Journal, Vol.99, No.5, 2002,pp.463-472

5.
Wu, C., 'Micromechanical Tailonng of PVA-ECCfor Structural Applications,' Ph. D. Thesis, AnnArbor, University of Michigan, USA, 2000. 238pp.

6.
Lin, Z., T. Kanda and V.C. Li, 'On Interface Property Characterization and Performance of FiberReinforced Cementitious Composites,' JournalConcrete Science and Engineering, RILEM, Vol.1,1999, pp.173-184

7.
Kanda, T. and Li, V.C., 'A New Micromechanics Design Theory for Pseudo Strain Hardening Cementitious Composite,' ASCE Journal of Engineering Mechanics, Vol.125, No.4, 1999, pp.373-381 crossref(new window)

8.
ACI Committee 556, 'Guide to Shotcrete (ACI-506R-90),' American Concrete Institute, 1990

9.
EFNARC, 'European Spedfication for Sprayed Concrete: Guidelines for Spedfiers and Contractors,'Hapshire, UK, 1999. 31pp.

10.
Melbye, T.A and Dimmock, R.H., 'Modem Advances and Applications of Sprayed Concrete,' in Shotcrete: Engineehng Developments, ed. E.S.Bernard, ISBN, Swets & Zeitlinger Publishers, 2001,pp.7-29

11.
김윤용, '습식스프레이공법으로 타설된 고인성 섬유보강 모르타르(ECC)의 역학적 특성과 보수 성능', 콘크리트학회논문집, 15권 제3호, 2003년, pp.462-469