[논문]Use of steel and polypropylene fibers to improve flexural performance of deep soil-cement column

doi:10.1016/j.conbuildmat.2011.10.040

Use of steel and polypropylene fibers to improve flexural performance of deep soil-cement column

Construction & building materials, v.29, 2012년, pp.201 - 205

Abstract ▼ AI-Helper

In this study, steel and polypropylene fibers are used to improve flexural performance of soil-cement pile. Deep cement mixing (DCM) technique has been used for decades in Thailand to improve the strength of soft clay in Bangkok and vicinity. However, since it is made of about 10-20% of cement, it also shares similar properties as the harden cement such as good compressive strength, low permeability, and poor tensile and flexural strengths (brittle). In several occasions when subjected to bending moment caused by horizontal loadings (induced by large embankment), the poor flexural strength can lead to a failure of the soil-cement column. In order to improve its flexural strength and brittleness, a technique of mixing short fibers (similar to that used in conventional concrete) is introduced to the soil cement mixture. Two types of fiber are used to produce the fiber reinforced soil cement (FRSC): polypropylene and steel fibers at three different volume fractions of 0.5%, 0.75% and 1.0%. Flexural performance of the FRSC is carried out according to ASTM C1609. Results show improvements in the flexural performance as seen by the increase in the equivalent flexural strength ratio and the residual strength when the fibers are incorporated into the mix. The polypropylene fiber is found to perform better than the steel fibers. With the increasing volume fraction, the toughness is also increase.

참고문헌 (19)

J Geotech Geoenviron Eng, ASCE Lin 125 4 309 1999 10.1061/(ASCE)1090-0241(1999)125:4(309) Use of deep mixing to reduce settlement at bridge approaches

상세보기
Ground Improv Porbaha 2 81 1998 10.1680/gi.1998.020204 State of the art in deep mixing technology, part I: basic concepts and overview

상세보기
Kamon M. Effect of grouting and DMM on big construction projects in Japan and the 1995 Hyogoken-Nambu Earthquake, grouting and deep mixing. In: Proceedings of IS-Tokyo’96, 2nd international conference on ground improvement geosystems, Tokyo, 14-17 May 1996, p. 807-23.
Ground Improve J Bergado 3 3 1 1999 Deep soil mixing to reduce embankment settlement
Ground Improve J Lai 10 4 153 2006 10.1680/grim.2006.10.4.153 Full-scale reinforced embankment on deep jet mixing improved ground

상세보기
Geotech Geolog Eng Dong 22 1 105 2004 10.1023/B:GEGE.0000013994.73567.cc Bearing capacity and settlement of concrete-cord DCM pile in soft ground

상세보기
Wu M, Zhao X, Dou YM. Application of stiffened deep cement mixed column in ground improvement. In: Proceedings international conference on deep mixing best practices and recent advances, Stockholm, Sweden, 2005. p. 463-8.
10.1061/JMCEA3.0000381 Romualdi JP, Batson GB. Mechanics of crack arrest in concrete. In: Proceedings, ASCE, vol. 89, EM 3, June 1963. p. 147-68.

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ACI J Proc Romualdi 61 6 657 1964 Tensile strength of concrete affected by uniformly distributed closely spaced short lengths of wire reinforcement
ACI J Proc Shah 68 2 126 1971 Fiber reinforced concrete properties
Johnston 1974 Steel fibre reinforced mortar and concrete - a review of mechanical properties
Johnston CD, Gray RJ. Uniaxial tension testing of steel fibre reinforced cementitious composites. In: Proceedings, international symposium on testing and test methods of fibre-cement composites, RILEM, Sheffield, April 1978. p. 451-61.
Int J Cem Compos Lightweight Concr Bentur 5 3 199 1983 10.1016/0262-5075(83)90007-6 Concrete beams reinforced with conventional steel bars and steel fibres: properties in static loading

상세보기
Mater Res Soc Symp Proc Shah 64 1986 Concrete and fibers reinforced concrete subjected to impact loading, cement-based composites: strain rate effects on fracture
Cem Concr Compos Rossi 14 1 3 1992 10.1016/0958-9465(92)90034-S Mechanical behaviour of metal-fibre reinforced concretes

상세보기
Fiber Reinf Concr: Mod Dev Mindess 1 1995 Fibre reinforced concrete: challenge and prospects
Constr Build Mater (JCBM) Sukontasukkul 24 1967 2010 10.1016/j.conbuildmat.2010.04.003 Post-crack (or post-peak) flexural response and toughness of fiber reinforced concrete after exposure to high temperature

상세보기
Bentur 1990 Fibre reinforced cementitious composites
Burakiweicz 1978 Testing of fibre bond strength in cement matrix, in testing and test methods of fiber cement composites

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Use of steel and polypropylene fibers to improve flexural performance of deep soil-cement column

Abstract ▼ AI-Helper

참고문헌 (19)

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