Experimental Investigation of the Effects of Concrete Alkalinity on Tensile Properties of Preheated Structural GFRP Rebar

Table 1

Outline of experimental program.

	Preheated	Immerged in 40°C alkaline solution
		For 0 days	For 100 days	For 300 days	For 660 days
Ref	35ea at room temp.	10ea	10ea	10ea	5ea
PH_120	35ea at 120°C	10ea	10ea	10ea	5ea
PH_200	35ea at 200°C	10ea	10ea	10ea	5ea
Sum	105ea	105ea