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Investigation of the effect of fibers on bond properties between self-consolida...
Yining Ding; Xiliang Ning; Juan Li; Torgal, Fernando PachecoThis study evaluated the effect of different fiber types (macro steel fibers, macro PP-fibers and micro PP-fibers) on the bond properties between self-consolidating concrete matrix and glass fiber-reinforced polymer (GFRP) rebars. The experimental program was comprised of 18 direct tension pullout specimens. Based on the flexural toughness applied by German guideline and RILEM recommendation, a novel method usi...
Asbestos based materials: new lights for an old problem and worrisome problem
Torgal, Fernando Pacheco; Yining, Ding; Jalali, SaidThe confirmation of the carcinogenic potential of asbestos fibres show that all the asbestos based materials present some kind of risk to human health having being considered a hazardous waste according to the European Waste List. Asbestos fibres are present in insulation materials, partition walls, corrugated roofing sheets and water pipes. Although they have been banned in 52 countries they are still being pr...
Concrete repair with geopolymeric mortars : influence of mortars composition on...
Moura, D.; Vasconcelos, E.; Torgal, Fernando Pacheco; Yining DingSince geopolymeric binders generates 70-80% less carbon dioxide than Portland cement these materials have been receiving increased attention, due to the need of reducing green house gas emissions generated by Portland cement and also to the need of new binders with enhanced durability performance. Several authors have report placement difficulties related to the low workability of geopolymeric mortars. Therefor...
Investigation of the strength and toughness of FRHPC after exposure to high tem...
Yining, Ding; Jalali, Said; Niederegger, ChristophThe investigations on different fibre influences on the compressive strength, the flexural strength and ductility as well as failure pattern of fiber reinforced high-performance concrete (FRHPC) after exposure to various high temperature were carried out. The results indicated that the compressive strength of HPC without fibres declined strongly after high temperature at 900oC, the residual compressive strength...
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