Pozzolanic Reaction in Clayey Soils for Stabilization Purposes: A Classical Overview of Sustainable Transport Geotechnics

Table 2

Values of liquid limit, plastic limit, and activity of some clay minerals [8].

Mineral	Liquid limit, (%)	Plastic limit, (%)	Activity, A
Kaolinite	35–100	20–40	0.3–0.5
Illite	60–120	35–60	0.5–1.2
Montmorillonite	100–900	50–100	1.5–7.0
Halloysite 1	50–70	40–60	0.1–0.2
Halloysite 2	40–55	30–45	0.4–0.6
Attapulgite	150–250	100–125	0.4–1.3
Allophane	200–250	120–150	0.4–1.3