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II. Duct Bank Constuction

Materials
Excavate to the right size
Install formworks ,rebars, HDPE pipes,

concrete spacer block
Join pipe by HDPE couping

Install HDPE 90 degree elbow

Pour concrete

53

II. Duct Bank Constuction : minimum

compressive strength 0f 180 ksc. At 28 day

(cylinder) concrete















II. Duct Bank Constuction

Uninstall formworks
Backfill and Restore the road surface

Install cable route markers

Inside clean HDPE pipes
Use rod duct (PVC) to insert nylon rope

Check HDPE pipes (Dummy Test)

62





II. Duct Bank Constuction

Uninstall formworks
Backfill and Restore the road surface

Install cable route markers

Inside clean HDPE pipes
Use rod duct (PVC) to insert nylon rope

Check HDPE pipes (Dummy Test)

65

II. Duct Bank Constuction :

II. Duct Bank Constuction

Uninstall formworks
Backfill and Restore the road surface

Install cable route markers

Inside clean HDPE pipes
Use rod duct (PVC) to insert nylon rope

Check HDPE pipes (Dummy Test)

67







II. Duct Bank Constuction

Uninstall formworks
Backfill and Restore the road surface

Install cable route markers

Inside clean HDPE pipes
Use rod duct (PVC) to insert nylon rope

Check HDPE pipes (Dummy Test)

71

cleaner

Flexible

II. Duct Bank Constuction

Uninstall formworks
Backfill and Restore the road surface

Install cable route markers

Inside clean HDPE pipes
Use rod duct (PVC) to insert nylon rope

Check HDPE pipes (Dummy Test)

73



nylon rope

II. Duct Bank Constuction

Uninstall formworks
Backfill and Restore the road surface

Install cable route markers

Inside clean HDPE pipes
Use rod duct (PVC) to insert nylon rope

Check HDPE pipes (Dummy Test)

76







II. Duct Bank Constuction :
Testing Elbow

II. Duct Bank Constuction :
Testing Duct Bank



II. Duct Bank Constuction

Pour fire proof concrete

Install Steel guard

II. Duct Bank Constuction: Before

II. Duct Bank Constuction: After

III. Manhole Construction

Install Sheet Pile to the right size
Pour lean concrete

Install formworks for bottom slab
Install rebars for bottom slab and wall
Install ground rod and pulling iron for bottom slab

Pour concrete for bottom slab

Install formworks for wall and window















III. Manhole Constuction

Install Sheet Pile to the right size
Pour lean concrete

Install formworks for bottom slab
Install rebars for bottom slab and wall
Install ground rod and pulling iron for bottom slab

Pour concrete for bottom slab

Install formworks for wall and window



III. Manhole Constuction

Install Sheet Pile to the right size
Pour lean concrete

Install formworks for bottom slab
Install rebars for bottom slab and wall
Install ground rod and pulling iron for bottom slab

Pour concrete for bottom slab

Install formworks for wall and window