Table 2.

Mixing condition for cement pastes and mortars.

Mix. no	Paste				Mortar
	First stage		Second stage		First stage		Second stage
	Time (min)	Speed	Time (min)	Speed	Time (min)	Speed	Time (min)	Speed (rpm)
1	0.5	140	1.5	140	1	140	1	140
2	0.5	140	1.5	285	1	140	1	285
3	0.5	140	14.5	140	1	140	14	140
4	0.5	140	14.5	285	1	140	14	285
5	0.5	140	59.5	140	1	140	59	140
6	0.5	140	59.5	285	1	140	59	285
7*	0.5	140	89.5	140	1	140	89	140
8*	0.5	140	89.5	285	1	140	89	285

* for some tests.