By Gideon P.A.G. Van Zijl, Billy P. Boshoff

ISBN-10: 0415876370

ISBN-13: 9780415876377

Collection of chosen papers on present advances in excessive functionality building fabrics. Contributions care for the advance, characterization, program approaches, functionality and structural layout of fabrics with key power in civil engineering works. fabrics handled are fibre bolstered concrete, excessive functionality concrete, self compacting concrete and novel combos of those. For researchers, practitioners, experts, contractors and suppliers.

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Extra info for Advances in Cement-Based Materials: Proc. Int. Conf. Advanced Concrete Materials, 17-19 Nov. 2009, Stellenbosch, South Africa

Sample text

Though the mechanisms of strengthening are assumed to be different in nature, it is interesting to see that at lower water-binder ratios the 20% level of replacement still gives good performance. The implications of this observation are that there may yet be the possibility of reducing the cement demand in UHPC design that normally requires extensive amounts of the same due to the absence of coarse aggregates and to ensure high strength. Figure 5. EDS spectrum of potential calcite growth on specimen surface.

Only pore diameters less than 10 μm are considered here. With pore diameter logarithmically scaled, the cumulative pore volume increases nearly linearly with decreasing pore diameter. 1 μm). 07) are slightly above the curves for the reference material F-R. For smaller pore diameters the rise in all curves is much more pronounced. 07 (both with addition of SAP and extra water), cf. Figure 5. The measurements on the 28-day-old specimens also show a distinct rise in pore volume with fine pore diameters.

M. Jensen et al. , 57–66. Mechtcherine, V. et al. 2006. Internal curing by Super Absorbent Polymers—Effects on material properties of self-compacting fibre-reinforced high performance concrete. M. Jensen et al. , 87–96. , Dudziak, L. & Hempel, S. 2009. Mitigating early age shrinkage of concrete by using Super Absorbent Polymers (SAP). In: CONCREEP-8, T. Tanabe et al. ), Taylor & Francis Group, London, 847–853. Investigations into the effect of internal curing on the microstructure of high-performance concretes are as yet incomplete, and further research is necessary using additional experimental techniques.

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Advances in Cement-Based Materials: Proc. Int. Conf. Advanced Concrete Materials, 17-19 Nov. 2009, Stellenbosch, South Africa by Gideon P.A.G. Van Zijl, Billy P. Boshoff

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