Effect of fly ash and slag on the fracture characteristics of high performance concrete

Size effect in self consolidating concrete beams with and without notches

“…Intrinsic brittleness of SCC as per size effect model is found to be varying from 13 mm to 41 mm, The range reported in literature (Bazant & Kazemi 1990;Gettu et al 1990;Bharatkumar et al 2005), show that the c f ranges between 6 and 15 for mortar, 10-25 for NC, 3-6 for HSC and 5-15 for HPC. The values obtained for SCC fall in this range.…”

Fracture behaviour of heat cured fly ash based geopolymer concrete

“…The fracture test specimens were 100 mm  100 mm section and 600 mm long beams with a 25 mm deep notch in the middle of the beam. Different ratios of the notch depth to beam depth were used in fracture test specimens available in literature [17][18][19][20], though a ratio of 0.5 is recommended by RILEM [21]. Elices and Planas [22] conducted an analysis of test results for different notch to beam's depth ratios and showed that a ratio of 0.2-0.5 can be considered as a practical experimental range.…”

Fracture behaviour of high-strength concrete at a wide range of loading rates

“…Over the past few decades, compared with the extensive research into the static fracture behaviour of HSC [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16], much less information is available on its dynamic fracture behaviour [17][18][19]. Schuler and Hansson [17] measured the tensile strength and the fracture energy of high performance concrete (HPC) with spalling tests, and Mindess et al [18] obtained dynamic mechanical properties of HSC and NSC using a drop-weight impact machine.…”