*2.2. Material Properties*

According to GB17671-1999 [17], the average compression strength of CGM-340 highstrength non-shrinkage grout after 28 days was 84.33 MPa, which is established from the compression testing of three specimens, as shown in Table 1. Similarly, the average compression strength of concrete from compression testing was 59.30 MPa according to GB17671-1999 [17], as shown in Table 2. Tensile testing was also performed to obtain the material property of rebar according to GB1499.2-2007 [18], as shown in Table 3. For example, the average yield strength and the ultimate strength of rebar with the diameter of 12 mm were 430.08 MPa and 574.43 MPa, respectively.

**Table 1.** Compressive strength of high-strength grouted mortar.


**Table 2.** Compressive strength of concrete.


**Table 3.** Mechanical properties of rebar.



**Table 3.** *Cont.*
