A Study of Lean Construction Practices in Gaza Strip

4.4.3. Foundation
Table (4.5) shows thirteen processes that constitute the foundation. Where the number
of value added steps is 2 out of 13 steps (15%) and the total duration in the daily report
is 276 hours.
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
Table 4.5 Non-value added and value added processes in foundation
Process
Form work foundation concrete part "C"
Form work foundation concrete part "A and
"B"
Fix steel of neck column part "A"
Fix neck steel of neck column "B"
Cast foundation "A"
Remove form work part "A"+ form work
part "C".
Fix steel neck column part "C"
Cast foundation part "B"
Steel work for foundation part "C"
Cast foundation part "B"
Remove form work part "C"+ part "B".
Form work for 5 foundation part "c", back
filling
Steel work +cast 5 foundation part "C" +
back filling + steel work + Laboratory
Total
Percentage of value added steps
43
Step
number
1
2
3
4
5
6
7
8
9
10
11
12
13
13
Step
15%
Value
added
steps
0
0
1/4
1/4
1/4
0
1/4
1/4
1/4
1/4
0
0
1/4
2
Duration/
hours
1day=8hou
rs
88
80
28
8
8
8
4
4
8
8
8
16
8
276