Calculation of Constrained Stress in Expansive Mortar with a Composite Creep Model

Table 1

Mineral composition of cement and expansive additive [12].

Type	Mineral composition (%)
	SiO2	Fe2O3	Al2O3	CaO	SO3	MgO	Total	f-CaO
Ordinary Portland cement	21.0	2.9	5.2	64.4	2.3	1.2	97.0	—
Expansive additive	1.0	0.8	7.2	70.6	18.5	—	98.1	49.8