Engineered Cement Composite Materials Characterization for Tunneling Applications
Cements, which are intrinsically brittle materials, can
exhibit a degree of pseudo-ductility when reinforced with a sufficient
volume fraction of a fibrous phase. This class of materials, called
Engineered Cement Composites (ECC) has the potential to be used in
future tunneling applications where a level of pseudo-ductility is
required to avoid brittle failures. However uncertainties remain
regarding mechanical performance. Previous work has focused on
comparatively thin specimens; however for future civil engineering
applications, it is imperative that the behavior in tension of thicker
specimens is understood. In the present work, specimens containing
cement powder and admixtures have been manufactured following
two different processes and tested in tension. Multiple matrix
cracking has been observed during tensile testing, leading to a
“strain-hardening" behavior, confirming the possible suitability of
ECC material when used as thick sections (greater than 50mm) in
tunneling applications.
[1] V. C. Li, "On engineered cementitious composites (ECC) -
A review of the material and its applications " J. Advanced Concrete Technology, vol. 1, no. 3, pp. 215-230, 2003.
[2] V. C. Li, M. B. Weiman, "Hygral behavior of Engineered Cementitious
Composites (ECC)," Intl J. for Restoration of Buildings and Monuments,
vol. 9, no. 5, pp. 513-534, 2003.
[3] V. C. Li, S. Wang, C. Wu, "Tensile strain-hardening behavior of
polyvinyl alcohol engineered cementitious composite (PVA-ECC)," ACI
Materials J., vol. 98, no. 6, pp. 483-492, 2001.
[4] Japanese Society of Civil Engineers, "Recommendations for design and
construction of high performance fiber reinforced cement composites
with multiple fine cracks (HPFRCC)", Concrete Engineering Series,
Japan, 2008.
[5] J-K. Kim, J-S. Kim, G. J. Ha, Y. Y. Kim, "Tensile and fiber dispersion
performance of ECC (engineered cementitious composites) produced
with ground granulated blast furnace slag," Cement and Concrete
Research, vol. 37, pp. 1096-1105, 2007.
[6] H. Takashima, K. Miyagai , T. Hashida, V.C. Li, "A design approach for
the mechanical properties of polypropylene discontinuous fiber
reinforced cementitious composites by extrusion molding," Engineering
Fracture Mechanics, vol. 70, pp. 853 - 870, 2003.
[7] A. M. Neville, "Properties of Concrete," 4th and final ed., Ed. England:
Pearson Education Limited, pp. 184-185, 1995.
[8] British Standard Institution, "BS EN 1015-3: 1999. Method of test for
mortar for masonry - Part 3: Determination of consistence of fresh
mortar (by flow table)," London: BSI, 1999.
[1] V. C. Li, "On engineered cementitious composites (ECC) -
A review of the material and its applications " J. Advanced Concrete Technology, vol. 1, no. 3, pp. 215-230, 2003.
[2] V. C. Li, M. B. Weiman, "Hygral behavior of Engineered Cementitious
Composites (ECC)," Intl J. for Restoration of Buildings and Monuments,
vol. 9, no. 5, pp. 513-534, 2003.
[3] V. C. Li, S. Wang, C. Wu, "Tensile strain-hardening behavior of
polyvinyl alcohol engineered cementitious composite (PVA-ECC)," ACI
Materials J., vol. 98, no. 6, pp. 483-492, 2001.
[4] Japanese Society of Civil Engineers, "Recommendations for design and
construction of high performance fiber reinforced cement composites
with multiple fine cracks (HPFRCC)", Concrete Engineering Series,
Japan, 2008.
[5] J-K. Kim, J-S. Kim, G. J. Ha, Y. Y. Kim, "Tensile and fiber dispersion
performance of ECC (engineered cementitious composites) produced
with ground granulated blast furnace slag," Cement and Concrete
Research, vol. 37, pp. 1096-1105, 2007.
[6] H. Takashima, K. Miyagai , T. Hashida, V.C. Li, "A design approach for
the mechanical properties of polypropylene discontinuous fiber
reinforced cementitious composites by extrusion molding," Engineering
Fracture Mechanics, vol. 70, pp. 853 - 870, 2003.
[7] A. M. Neville, "Properties of Concrete," 4th and final ed., Ed. England:
Pearson Education Limited, pp. 184-185, 1995.
[8] British Standard Institution, "BS EN 1015-3: 1999. Method of test for
mortar for masonry - Part 3: Determination of consistence of fresh
mortar (by flow table)," London: BSI, 1999.
@article{"International Journal of Architectural, Civil and Construction Sciences:59929", author = "S. Boughanem and D. A. Jesson and M. J. Mulheron and P.A. Smith C. Eddie and S. Psomas and M. Rimes", title = "Engineered Cement Composite Materials Characterization for Tunneling Applications", abstract = "Cements, which are intrinsically brittle materials, can
exhibit a degree of pseudo-ductility when reinforced with a sufficient
volume fraction of a fibrous phase. This class of materials, called
Engineered Cement Composites (ECC) has the potential to be used in
future tunneling applications where a level of pseudo-ductility is
required to avoid brittle failures. However uncertainties remain
regarding mechanical performance. Previous work has focused on
comparatively thin specimens; however for future civil engineering
applications, it is imperative that the behavior in tension of thicker
specimens is understood. In the present work, specimens containing
cement powder and admixtures have been manufactured following
two different processes and tested in tension. Multiple matrix
cracking has been observed during tensile testing, leading to a
“strain-hardening" behavior, confirming the possible suitability of
ECC material when used as thick sections (greater than 50mm) in
tunneling applications.", keywords = "Cement composite, polymeric fibers, pseudoductility, test-geometry.", volume = "7", number = "6", pages = "493-5", }