Stress Corrosion Behavior of Ungrouted Pretensioned Concrete Beams

Table 1

Chemical composition of OPC.

Compound	SiO2	Al2O3	Fe2O3	CaO	MgO	SO3	LOI
Wt.%	20–21	5.2–5.6	4.4–4.8	62–63	0.5–0.7	2.4–2.8	1.5–2.5