Experimental Study of High-Strength Steel Fiber Lightweight Aggregate Concrete on Mechanical Properties and Toughness Index

Table 4

Mechanical performance test results of HSLAC.

Code	Density (kg/m^3)	Compressive strength (MPa)	Tensile strength (MPa)	First-crack flexural strength (MPa)	Flexural strength (MPa)	Ratio of tensile to compressive	Ratio of flexural to compressive
P	1822	55.3	3.66	5.26	5.26	0.066	0.095
M0.5	1879	61.6	5.12	5.45	6.11	0.083	0.099
M1.0	1905	67.9	6.44	5.97	6.94	0.095	0.102
M1.5	1931	73.4	7.25	6.68	7.65	0.099	0.104
M2.0	1997	81.3	8.67	7.15	8.52	0.107	0.105
H0.5	1854	58.0	4.46	5.37	5.60	0.077	0.097
H1.0	1892	61.5	5.67	5.42	6.59	0.092	0.107
H1.5	1935	65.8	6.28	6.31	7.80	0.095	0.119
H2.0	1969	67.7	7.08	6.53	8.18	0.105	0.121
C0.5	1838	54.6	4.04	5.13	5.19	0.074	0.095
C1.0	1879	58.9	4.54	5.14	5.46	0.077	0.093
C1.5	1900	62.0	4.85	5.35	5.82	0.078	0.094
C2.0	1911	60.8	4.73	5.06	5.27	0.078	0.087