Flexural Behavior of Reinforced High-Performance Concrete Beams Made with Steel Slag Coarse Aggregate

Table 8

Displacement ductility, 𝑥/𝑑 ratio, and strain values for the tested beams.

Beam	ρ, %	μ d	𝑥exp𝑑	𝑥theo𝑑	𝑥exp/𝑑𝑥theo/𝑑	𝑥exp/𝑑𝑥max/𝑑	*Concrete compressive strain	*Tensile steel strain
BD1	0.90	9.66	0.29	0.34	0.85	0.58	0.0044	0.0107
BD2	1.95	2.8	0.32	0.46	0.70	0.64	0.0018	0.0038
BD3	3.6	2.89	0.46	0.56	0.82	0.92	0.002	0.0023
BD4	4.3	2.04	0.49	0.59	0.83	0.98	0.0017	0.0018
BS1	0.90	9.55	0.32	0.34	0.94	0.64	0.0049	0.0106
BS2	1.95	6.29	0.33	0.46	0.72	0.66	0.0052	0.0106
BS3	3.6	3.34	0.46	0.56	0.82	0.92	0.0025	0.0029
BS4	4.3	2.22	0.58	0.59	0.98	1.16	0.0028	0.002

*Tabulated concrete and steel strains were recorded approximately at 85% of the ultimate moment.