dayagel seismic test report-july-august 2011

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DAYAGEL SEISMICSPEED UP DEGRADATION TEST

TEST REPORT (July & August 2011)

ENERGETIC MATERIAL CENTER



OBJECTIVES

Ones method to speed-up the degradation of Dayagel

Seismic explosives in shot-hole (after loading) is try tomodify the cap, so salty/brackish water from outer can

entering to the cartridge and damage the explosives.

To know how long time the modified cap will give effect

to the explosives performance in real condition, some

cartridges of Dayagel Seismic with modified cap are

simulated by hydrostatic pressured test in several

months with minimum pressure 3 bar, and detonate its.

The expectation of this method is after 3 - 6 months in

shot-hole (= sleeping time), the explosives can be

damaged by itself or can not detonate by seismic

detonator.

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Hydrostatic Pressure test – Dayagel Seismic with modified cap

No.Date of

Tested

Sleeping Time

(P >= 3 bar)

Condition (visual check) Initiation Test

1 2-Sep-10 1 month Still Normal Completly explode

2 6-Oct-10 2 months Coros sion, no hole at zinc plate Completly ex plode

3 3-Nov-10 3 months Coros sion, no hole at zinc plate Completly ex plode

4 2-Dec-10 4 months Coros sion, no hole at zinc plate Completly ex plode

5 6-Jan-11 5 mont hs 1 Cartridge wit h hole at z inc plate Completly ex plode

6 17-Feb-11 6 months 2 Cart ridges with hole at z inc plate Complet ly explode

7 2-Mar-11 7 months

More then 2 Cartridges with hole at

zinc plate Completly explode

8 7-Apr-11 8 monthsMany more Cartridges with hole at

zinc plateCompletly explode

9 3-May-11 9 monthsMany more Cartridges with hole at


10 21-Jun-11 10 monthsMany more Cartridges with hole at


11 12-Jul-11 11 months

Many more Cartridges with

hole at zinc plate Completly explode

12 4-Aug-11 12 monthsMany more Cartridges with

hole at zinc plateCompletly explode



4

After 8 months pressurized After 9 months pressurized

After 10 monthspressurized



5

After 11 months

pressurized

After 10 months pressurized



RESULTS

6

Hydrostatic Pressure test

Dayagel Seismic without modified cap, closed by Loading Point

No.Date of

Tested

Sleeping Time

(P >= 3 bar)Initiation Test

1 2-Dec-10 1 month Completly explode

2 6-Jan-11 2 months Completly explode

3 17-Feb-11 3 months Completly explode

4 2-Mar-11 4 months Completly explode

5 7-Apr-11 5 months Completly explode

6 3-May-11 6 months Completly explode

7 21-Jun-11 7 months Completly explode

8 12-Jul-11 8 months Completly explode

9 4-Aug-11 9 months Completly explode



Daveydet SR Seismic Detonator Test Results

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No.

Date of

Tested

Sleeping Time

(P >= 3 bar) Result1 2-Sep-10 1 month Completly initiated

2 6-Oct-10 2 months Completly initiated

3 3-Nov-10 3 months Completly initiated

4 2-Dec-10 4 months 1 failed - 2 initiated

5 6-Jan-11 5 months 1 failed - 2 initiated6 7-Feb-11 6 months 1 failed - 2 initiated

7 2-Mar-11 7 months 2 failed - 1 initiated

8 7-Apr-11 8 months Completly initiated

9 3-May-11 9 months 2 failed - 1 initiated

10 21-Jun-11 10 months 2 failed - 1 initiated

11 12-Jul-11 11 months 3 failed

12 4-Aug-11 12 months 2 failed - 1 initiated



CONCLUSION

• Dayagel Seismic with modified cap, still completely

explode after 12 (twelve) months pressurized.

However, the number of perforated cap increases

and growing larger diameter hole.

• There is no significant results of modifying cap to

speed up degradation or reducing sleeping time of

Dayagel Seismic.

• More attention should be given to the Seismic

Detonator showing a decline in performance

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dayagel seismic test report-july-august 2011

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