Investigations of Dynamic Mechanical Performance of Rubber Concrete under Freeze-Thaw Cycle Damage

Table 1

Mechanical performance of two concrete materials.

Number	Average strain rate (s^−1)	Dynamic strength (MPa)	Toughness (J)	Static average compressive strength (MPa)	(J)	(J)	Energy absorption rate (%)	(J·cm^−3)
XJ-0-0.3	75.1	40.1	0.43	34.2	63.2	18.6	29.5	0.12
XJ-0-0.4	99.8	46.8	0.66		85.4	26.7	31.3	0.17
XJ-0-0.5	127.2	60.2	0.80		106.7	36.1	33.8	0.23
XJ-0-0.6	155.9	74.5	1.17		146.8	47.6	32.4	0.30
XJ-10-0.3	72.3	37.5	0.60	31.5	60.3	24.7	41.0	0.16
XJ-10-0.4	96.7	45.7	0.79		79.5	33.8	42.5	0.22
XJ-10-0.5	124.6	57.3	1.05		103.2	49.7	48.2	0.32
XJ-10-0.6	151.7	70.6	1.33		141.7	61.6	43.4	0.38

Note. XJ-10-0.3 in XJ indicates rubber concrete, 10 indicates rubber admixture of 10%, 0.3 indicates impact air pressure of 0.3 MPa.