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
![](/editor/UploadFile/2008813213718609.gif)
(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’).
![](/editor/UploadFile/2008813214248971.gif)
(3) Splitting of Wall
d |
38-44 mm |
1 1/4-1 1/2 |
L |
25-30 cm |
10-1’ |
![](/editor/UploadFile/2008813214625978.gif) (4) Splitting of Slab
d |
38-44 mm |
1 1/2-1 3/4 |
L |
25-30 cm |
10-1’ |
![](/editor/UploadFile/2008813215115540.gif)
(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.
![](/editor/UploadFile/2008813215446203.gif)
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