ZORN INSTRUMENTS ZFG 3.0 User Manual

User Manual ZFG 3.0
- 25-
For information purposes only, no guarantee of information correctness
Construction material and
soil engineering institute,
Wetzlar
Backfilling of trenches
Verification of compaction with light drop weight tester in accordance with TP BF-StB Part 8.3
Indicators for the allocation of
• Compaction ratio D
pr
• Dynamic deflection modulus E
vd
Required compaction
at various depths
(ZTVT-StB 95*)
(ZTVE-StB 94)
Based on guide values
for allocation to D
pr
(ZTVE-StB 94
Tab. 8)
Proposal for
allocation of E
vd
to
E
v2
(in acc. w. FGSV
AA Prüftechnik, Oct.
96 edition)
1)
Soils group
Compaction ratio D
pr
Deflection modulus
E
v2
Deflection modulus
E
vd
DIN 18 196
%
MN/m²
MN/m²
GW, GI
(e.g. stony soil or
mineral aggregate
0/32)
 103
 100
 98
 97
 120
 100
 80
 70
 60
 50
 40
 35
GE,SE,SW,SI
 100
 98
 97
 80
 70
 60
 40
 35
 32
mixed and fine-
grained soils
 100
 97
 95
 45
 30
 20
 25
 15
 10
1) These indicator values can be used as guide values for the verification of the compaction
achieved in acc. w ZTVE-StB 94, para. 14.2.5 as agreed between client and contractor.

ZORN INSTRUMENTS ZFG 3.0 Specifications

General

Brand	ZORN INSTRUMENTS
Model	ZFG 3.0
Category	Measuring Instruments
Language	English