By Kamal H. Khayat, Geert De Schutter
The cutting-edge record of RILEM Technical Committee 228-MPS on Mechanical homes of Self-Compacting Concrete (SCC) summarizes an intensive physique of knowledge concerning mechanical homes and mechanical behaviour of SCC. Due realization is given to the truth that the composition of SCC varies considerably. quite a lot of mechanical homes are thought of, together with compressive energy, stress-strain dating, tensile and flexural strengths, modulus of elasticity, shear power, influence of increased temperature, akin to hearth spalling and residual houses after fireplace, in-situ homes, creep, shrinkage, bond homes and structural behaviour. A bankruptcy on fibre-reinforced SCC is integrated, in addition to a bankruptcy on forte SCC, similar to lightweight SCC, heavy-weight SCC, preplaced mixture SCC, particular fibre strengthened SCC and underwater concrete.
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Example text
The effect of the surface texture and the origin of coarse aggregates on the compressive strength are presented in Figs. 12. In Fig. 11, the results related to crushed (63 %) and uncrushed (37 %) coarse aggregates are shown. 0 f ccyl,150,eq [MPa] Fig. 0 (W/C) corr [-] Fig. 0 (W/C) corr [-] the range of 30–90 MPa no obvious difference can be noticed between SCC made with crushed or uncrushed aggregates. The crushed aggregates, however, cover a larger strength range compared to the uncrushed aggregates.
No noticeable difference between SCC and VC was recorded with respect to the shape of the stress-strain curves. Comparing the curves between the two applied strength classes, it can be mentioned that the higher the strength class, the steeper the slope of the ascending branch of the stress-strain curve and the more linear the descending one. The peak strain decreased at increasing compressive strength. 6 by Desnerck [60]. 003 mm/s. The axial deformations in the central part of the specimen, the circumferential deformation and the stress applied to the specimen were recorded.
Anagnostopoulos et al. [14] looked into the influence of fire on the stress-strain relationship of SCC. They ran tests after heating to 300 and 600 °C, but also on 34 P. Desnerck et al. Fig. 15 Stress-strain relationships of VC and SCC with different fillers (based on [79]) reference specimens stored at 20 °C. All SCCs contained limestone filler and had a total powder content of 475 kg/m3. To obtain different compressive strengths the ratio between cement and filler in the total powder content was varied.
