BE-02 Open cut method Lesson: Embedment of Piping

Physical Characteristics of Soil

Soil Compactibility Classes

This page presents the assignment of different soil types to three compactibility classes based on German standards. As per ASTM, non-cohesive to cohesive soils as well as coarse-grained and mixed soils (sand and gravel) have good compactibility characteristics.

Table: 
Compactibility class V1 to V3 as per ZTVA-StB 97 [ZTVAStB97]
Compactibility class Description Soil Group as per DIN 18196
Good compactibility (V 1) Non-cohesive to cohesive,
coarse-grained and mixed
soils (sand and gravel)		 GW, GI, GE, SW, SI, SE, GU, GT, SU, ST
Moderate compactibility (V 2) Cohesive, mixed-grained soils
(Gravel and sand with a large clay
or silt portion)		 GU, GT, SU, ST
Not easy compactibility (V 3) Cohesive, fine-grained soils
(Clays or silts)		 UL, UM, TL, TM

In this context, the tabular information on the classification of soils for civil engineering purposes in this Table may be interesting.

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