20---Wednesday---Carbofill

Question 2

In addition to mandatory
personal protective
equipment (helmet, cap
lamp and rescuer etc)
name four items of PPE
must be in the
possession/worn of every
person who enters the
restricted area of
operations?

Answer 2

Approved respirator complying with AS 1715 & 1716Goggles/face shield
Impervious Rubber gloves
Impervious disposable overalls

Question 3

How many components

make up Carbofill?

Answer 3

2

Question 4

Where is Carbofill

mixed?

Answer 4

At the discharge point

Question 5

When does Carbofill set?

Answer 5

Whilst foaming takes place

Question 6

What ratio is Carbofill

pumped at?

Answer 6

4 to 1

Question 7

Which component is
classified as a Dangerous
Good?

Answer 7

B Component

Question 8

Are any of the

components flammable

Answer 8

No

Question 9

What do you do if
Carbofill is splashed into
your eyes

Answer 9

Wash your eyes with plenty of water
Use an eyewash bottle to rinse each
affected eye.
Seek medical attention if irritation persists

Question 10

What is the exclusion

zone on the return side?

Answer 10

350 Metres

Question 11

Itemise five of your responsibilities regarding safety when performing phenolic resin foam placement tasks.

Answer 11

Check for workplace hazards.
Check grout retaining structures for soundness.
Check that Equipment is clean, inspected and maintained.
Pump lines and service hoses are in good order and routed safely.
Other mine personnel are aware of the operation.

Question 12

What information does the Material Safety Data Sheet (MSDS) include?

Answer 12

Safe Storage and handling.
First Aid Information.
Precautions for Use.
Health Hazards.

Question 13

Itemise the pre-checks necessary before start-up.

Answer 13

PPE is available at all locations and correctly used by all Operators.
Workplace inspected and all hazards removed or reported.
Communication system is checked and working.
Pump Set-Up Check List is followed.

Question 14

IN THE EVENT OF A SPILL

OCCURING

Answer 14

Don PPE as per MSDS (if not already on)
Alert personnel on the in-bye side of the spillage
Contain material by damming with stone dust
Prevent contamination of drains and waterways
Mix with absorbent inert material
Place material in suitably labelled container for disposal

Question 15

What are the Exclusion Zones?

Answer 15

350 metres on the return side

10 metres on the intake side

Question 16

What are some of the APPLICATIONS that carbon fill is used for?

Answer 16

Rock stabilisation
Sealing against gases
Large volume cavity filling
Overbreaks in face or along headings
Stabilisation of caved material
Preliminary heading closures for sealing

Question 17

WHAT IS CARBOFILL Part B Chemical Chacteristics

Answer 17

Dark Brown fluid with characteristic odour
Stable under normal conditions of use
Comprises of Sulphuric acid, Benzenesulfonic Acid and
Phosphoric acid Non-flammable, but if heated it may cause irritating and
corrosive vapours
Classified as a Class 8 Corrosive substance

Question 18

WHAT IS CARBOFILL Part A Chemical Chacteristics

Answer 18

Light pink/red liquid
Stable under normal conditions of use
comprises of Phenolic Resin with powder fillers. Also
contains small amount of residual Phenol and
Formaldehyde.
Non-flammable and Non-combustible
Not classified as a Dangerous Good

Question 19

WHAT IS CARBOFILL?

Answer 19

Two component phenolic resin hard foam
Delivered via 2 component pump and hoses
Mixed in volume ratio of 4:1
Mixes at discharge point
Sets while foaming is progressing