Table 2.

Properties of type I cement type I, according to national standard no. 389 (Tehran Cement).

	Chemical properties			Physical properties
	MgO	L.O.I	I.R	Blaine specific surface cm2/g	Autoclave expansion, %	Setting time		Compressive strength kg/cm2
	%	%	%			Initial minutes	Final hours	2 days	At least 28 days	At last 28 days
Value	<5	<3	<0.75	>2800	<0.8	>45	<6	>100	>425	<625