International Journal of Concrete Structures and Materials

Table 7 Fracture energy of all mixes.

From: Studies on Hemp and Recycled Aggregate Concrete

Mix ID	Fracture energy	µ^a
Mix ID	(kN-m)
Group 1 MSA = 10 mm
N10 (control 10)	3.77	–
R10	4.04	1.07
N10–H20–T1	11.52	3.06
R10–H20–T1	8.53	2.26
R10–H20–T2	13.29	3.53
N10–H30–T1	7.37	1.95
R10–H30–T1	9.22	2.45
Group 2 MSA = 20 mm
N20 (control 20)	3.21	–
R20	2.71	0.84
N20–H20–T1	18.02	5.61
R20–H20–T1	6.66	2.07
N20–H20–T2	9.09	2.83
R20–H20–T2	10.47	3.26
N20–H30–T1	8.18	2.55
R20–H30–T1	11.11	3.46
R20–H30–T2	8.63	2.69

^aµ energy ductility index. It is the ratio of fracture energy of the tested specimen to that of the control mix N10 or N20.

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