Experimental Investigation on Flexural Behavior of Granite Stone Slabs with Near Surface Mounted CFRP Bars and Screw-Thread Steels

Table 5

Properties of screw-thread steels.

Label of specimen	Yield strength (MPa)	Ultimate strength (MPa)	Yield strain ()	Elastic modulus (MPa)
6–1	460	657	2289	2.01 × 10^5
6–2	463	651	2303	2.01 × 10^5
6–3	453	638	2254	2.01 × 10^5
Average value of 6 mm	459 ± 3.7	649 ± 7	2282 ± 18.7	2.01 × 10^5
8–1	457	654	2274	2.01 × 10^5
8–2	438	633	2179	2.01 × 10^5
8–3	448	651	2229	2.01 × 10^5
Average value of 8 mm	448 ± 6.3	646 ± 8.7	2227 ± 32.3	2.01 × 10^5