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borna godaz

manufacturer of cathodic protection anodes

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Coke

Monday, 14 May 2018 00:00

CARBONACEOUS BACKFILL FOR IMPRESSED CURRENT ANODES

 

Impressed current anodes are usually installed in conventional horizontal groundbeds when there are no environmental restrictions or in deepwell groundbeds when dictated by an arid desert environment. In both circumstances surrounding the anodes with a low resistivity backfill lowers the anode to earth resistance thus increasing the life and performance of the anodes.

 

coke.jpg

 

 

BORNA Godaz company supply three types of carbon backfill materials with high carbon content (80% metallugical coke, 90% petroleum coke and 95% special petroleum coke) According to IPS-M-TP-750/2 standard. The main differences of these three types of coke are chemical properties and density quantity as following tables:

 

 

Type1: metallurgical coke breezeType 2: petroleum coke breezeType 3: special petroleum coke breeze

Chemical properties

(wt%)

quantity

Density

(kg/m3)

Quantity

Density

(kg/m3)

Quantity

density

(kg/m3)

Carbon (Min)80650-80090700-1000951050-1200
Moisture (Max)551
Gray (Max)1553
Sulfur (Max)151
Fugitive materials (Max)551

According to IPS-M-TP-750/2 standard, the specific strength of coke type 1 and 2 should be less than 100 ohm.cm and the specific strength of type 3 coke should not be exceeded than 0.1 ohm.cm. The difference in grading of these three types of coke is as follows:

Type1: metallurgical coke breezeType2: petroleum coke breezeType3: special petroleum coke breeze
Grain size

100% smaller than 10 mm

90% larger than 1 mm

100% smaller than 3 mm

90 % larger than 0.5 mm

100% smaller than 1 mm

80 % larger than 0.6 mm 90 % larger than 0.4 mm

99 % larger than 0.15 mm

Packing

All material are packed in 25 kg or 1 ton double bagged.

Other bag sizes available on request.

Contact us

02156233930-02156233929
02156232587-02156236590
02156230236
 [email protected]
Tehran Province, Shamsabad Industrial City, Golbarg Number 2

   

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Bornagodaz

BORNA Godaz Company was established on the path of development of BORNA Electronic activities in the field of cathodic protection in 2004. ...

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