Fatigue lives of self-compacting concrete and self-compacting fibre-reinforced concrete beams
01 Jun 2013-Vol. 166, Iss: 3, pp 141-151
TL;DR: In this paper, the mean and design fatigue life of self-compacting concrete and selfcompacting fibre-reinforced concrete beams containing 0·5% volume fraction of steel fibres is estimated.
Abstract: This paper presents results of an investigation conducted to estimate the mean and design fatigue lives of self-compacting concrete and self-compacting fibre-reinforced concrete beams containing 0·5% volume fraction of steel fibres. Approximately 19 flexural fatigue tests and 90 complementary static flexural strength tests were conducted on self-compacting concrete and self-compacting fibre-reinforced concrete beam specimens of 100 × 100 × 500 mm size. The distribution of fatigue life of self-compacting concrete and self-compacting fibre-reinforced concrete at different stress levels has been examined and Weibull distribution parameters have been obtained by different methods of analysis, which are subsequently used to estimate the mean and design fatigue lives of self-compacting concrete and self-compacting fibre-reinforced concrete. The performance of self-compacting concrete and self-compacting fibre-reinforced concrete have been found to be better, in terms of reduced variability in the distribution o...
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TL;DR: In this article, a comparative analysis has been made between the previous and present investigations conducted on the flexural fatigue life analysis of self compacting concrete (SCC) made by incorporating RCA and NA respectively.
16 citations
TL;DR: In this paper, a three-stage model of the CRTS III slab ballastless track structural system fatigue finite element numerical model was established, with particular emphasis on the fatigue characteristics of the self-compacting concrete of the SLB under a load of heavy haul trains.
15 citations
TL;DR: In this paper, the authors examined the flexural fatigue strength of self-compacting concrete (SCC) containing 50% Coarse Recycled Concrete Aggregates (RCA) and blended cements i.e. Silica Fume (SF) and Metakaolin (MK).
15 citations
TL;DR: In this paper, the experimental study on the shear behavior of self-consolidating concrete (SCC) reinforced with recycled steel fibers (RSF), obtained from scrap tyres and manufactured steel fibers, was presented.
Abstract: This article presents the experimental study on the shear behavior of self-consolidating concrete (SCC) reinforced with recycled steel fibers (RSF), obtained from scrap tyres and manufactured steel fibers (MSF). A total of seven mixes were prepared viz SCC with no fiber as control mix, SCC with the inclusion of MSF with 0.5%, 1.0% and 1.5% volume fraction and RSF with varying volume fractions of 0.5%, 1%, and 1.5%. To increase the workability and viscosity of SCC, fly ash and silica fume (SF) was added in an appropriate proportion. The use of these materials promotes the sustainable use of waste. It was observed that the shear strength of SCC mix with RSF improved as compared to that of plain SCC but decreased as compared to SCC with MSF. A statistical model based on experimental data has been developed for predicting the shear strength of SCC containing MSF and RSF. An attempt has been made to predict the shear strength of mixes used in studies available in the literature.
13 citations
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TL;DR: In this article, a new analysis tool was developed to quantify the experimentally observed changes in morphology of portlandite, allowing the calculation of the relative surface energies of the crystal facets.
2,498 citations
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01 Jan 1992
TL;DR: In this article, the Taylor series is used to model the wave equation and the Laplace equation in the context of linear algebraic equations, eigenproblems, polynomial approximation and interpolation, and difference formulas numerical integration.
Abstract: Part I Basic tools of numerical analysis: systems of linear algebraic equations eigenproblems solution of nonlinear equations polynomial approximation and interpolation numerical differention and difference formulas numerical integration. Part II Ordinary differential equations: solution of one-dimensional initial-value problems solution of one-dimensional boundary-value problems. Part III Partial differential equations: elliptic partial differential equations - the Laplace equation finite difference methods for propagation problems parabolic partial differential equations - the convection equation coordinate transformations and grid generation parabolic partial differential equations - the convection-diffusion equation hyperbolic partial differential equations - the wave equation. Appendix: the Taylor series.
1,202 citations
TL;DR: In this paper, a new mix design method for self-compacting concrete (SCC) is proposed, where the amount of aggregates required is determined, and the paste of binders is then filled into the voids of aggregate to ensure that the concrete thus obtained has flowability, selfcompacting ability and other desired SCC properties.
568 citations
TL;DR: In this paper, experiments and theories on self-compacting concrete are discussed, where the packing behavior of the powders (cement, fly ash, stone powder) and aggregates (three sands and gravel) used are analyzed in detail.
456 citations
"Fatigue lives of self-compacting co..." refers background in this paper
...The mechanical properties of SCC and SCFRC under statically applied loads such as compressive strength, flexural strength, splitting tensile strength, elastic modulus, creep and shrinkage, shear behaviour and so on, have also been a subject of interest to many researchers (Brouwers and Radix, 2005; Cunha et al., 2010; Dhonde et al., 2007; Greenough and Nehdi, 2008; Persson, 2000; Torrijos et al., 2008, Turkel and Kandemir, 2010)....
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TL;DR: In this article, case studies of applications of self-compacting concrete (SCC) have been analysed, and the results of the analysis of the above factors are given in statistical terms, such as ranges, frequencies, cumulative distributions, medians and deciles.
Abstract: Sixty eight case studies of applications of self-compacting concrete (SCC) have been analysed. These were published from 1993 to 2003, the period of increasingly widespread use of SCC in many countries. They were selected for analysis on the basis of including details of concrete formulations and properties. The ranges of properties, component materials and mix proportions show the diverse nature of SCC, and confirm that it should be considered as a family of mixes suitable for a wide range of applications with widely varying requirements. The outcome of the analysis of the above factors is given in statistical terms—ranges, frequencies, cumulative distributions, medians and deciles. This will be of value to those new to SCC, current users and researchers.
384 citations