|
d |
32-38 mm |
|
1 1/4-1 1/2 |
|
L |
25-30 cm |
|
10-1’ |
|
D |
Around Wall Thickness |
Crack width of the front row is opened much larger than that of the back rows.
Square Arrangement
(2) Avoid diagonal crack
|
d |
32-38 mm |
25 mm |
32-38 mm |
|
1 1/4-1 1/2 |
1 |
1 1/4-1 1/2 |
|
L |
25-30 cm |
10 cm |
10-15 cm |
|
10-1’ |
4 |
4-6 |
The curvature at corner (R) should be more than 15 cm (6’).
(3) Splitting of Wall
|
d |
38-44 mm |
|
1 1/4-1 1/2 |
|
L |
25-30 cm |
|
10-1’ |
(4) Splitting of Slab
|
d |
38-44 mm |
|
1 1/2-1 3/4 |
|
L |
25-30 cm |
|
10-1’ |
(5) Establishment of free surfaces
|
d |
38-44 mm |
|
1 1/2"-1 3/4" |
|
L |
25-30 cm |
|
10"-1’ |
Instead of Burn Cut (chapter 6 of Rock), cross drilling may be used to establish the free surface for wall case.
|
WHAT IS STAFFII