Austral Masonry Fire and Sound Rating Technical Manual

7/27/2019 Austral Masonry Fire and Sound Rating Technical Manual

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Fire & Sound RatingTechnical ManualNew South Wales

masonry.build in style


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2 | Austral Masonry

Designing Masonry or Fire ResistanceThe Building Code o Australia (BCA) requires

that walls be designed in accordance with Section 6:

Design or Fire Resistance o AS3700: 2001, to provide

the required fre resistance in buildings.

Austral Masonry manuactures a range o masonry

bricks and blocks complying with the requirements o the

Australian Standard AS/NZS 4455.1: 2008 Masonry Units.

The Alphalite range has been designed as all-purpose

units to meet all your masonry site requirements. These

masonry units are not only lightweight and loadbearing

but also achieve high fre rating, sound and thermal

insulation as well as having many other attributes.

This guide demonstrates the Alphalite ranges ability tomeet all these requirements with the one product type.

Alphalite gives you fre rated and sound rated masonry,

the highest Slenderness ratio, structural lightweight masonry

(15MPa), ease o rendering and cutting, ability to direct nail

or screw, no eorescence plus exposure grade durability.

Fire resistance levels are specifed in the BCA.

This system provides an accurate method o predicting

the ability o a wall to maintain its strength in a fre and to

resist the spread o the fre. The Fire Resistance Level (FRL)

is given in the orm o three numbers e.g., 180/120/90, which

represent in turn, the required FRL (in minutes) or Structural

Adequacy/Integrity/Insulation. The FRL o a wall depends not

only on the thickness o the wall but also on its height,

length and restraint conditions (i.e. how it is connected

to other building elements). The Fire Resistance Levels

expressed in this brochure are based on test results and

are summarised over pages 4 and 5.

Structural Adequacy (Ability to remain stable)

Structural Adequacy FRL is governed by three ormulae

in AS3700:2001, Clause 6.3.2.2 which use the masonry panels

height, length, thickness and restraint conditions around the

perimeter to calculate the panels Slenderness ratio or fre (Sr ).

Restraint at the top o a wall can be provided by a load-bearing

concrete slab, head ties rom infll walls to the underside o a

concrete slab or ties to a braced roo rame. End restraints can

be provided by bonded corners, ties to columns or buttresses

with a length > the wall height x 0.2. Where a wall butts into and

is tied to the proposed fre wall, it divides that wall into 2 panels

as ar as the Sr calculations are concerned.

Integrity

(Ability to resist the passage o ames and gases)

Design or integrity is based on Clause 6.4.2 o AS3700

which deems that the FRL or integrity will be met i the wall

meets that value or Insulation and Structural Adequacy.

contents.Designing Masonry or Fire Resistance 2

Fire resistance levels or Alphalite Range 4

Maximum insulation FRL in minutes 5

60 Minute Structural Adequacy 7





Acoustics 12Environmental responsibility 13

Acoustic perormance o Masonry walls 14


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Fire & Sound | New South Wales | 3

Insulation

(Ability to limit the passage o heat) To achieve the

required FRL or insulation a minimum material thickness

must be provided by the wall. For solid and cored (less than 30%cored) masonry units, the material thickness is taken as the

actual thickness. The actual thickness is also used or hollow units

in which all cores are flled with grout. For hollow units which are

unflled or partly flled the material thickness is the nett or

material volume o the unit divided by its ace area, commonly

reerred to as the equivalent thickness. I the wall is cement

rendered on both sides, the thickness o the thinner coating

up to a maximum value o 20 mm may be added to the

material thickness o the wall.

Cavity walls

For Integrity and Insulation, AS700 states the material thickness

o both leaves is added together and the cavity ignored to givethe material thickness. For Structural Adequacy where only

one lea is loadbearing, the FRL or Structural Adequacy is based

on the loaded lea alone and the non loaded lea ignored. I

both leaves are similarly loaded or both leaves are non-load

bearing then the thickness or Structural Adequacy is based

on two-thirds o the sum o the thickness o the two leaves.

Robustness

The height limits o walls when determined by design or

Robustness are in some cases less than those determined by

design or fre resistance. These cases are indicated by

secondary curves on the RHS o the design tables.

Chases

AS3700 Clause 6.7 states chasing o masonry subject

to fre shall be kept to a minimum. The eect o chasing

fre-rated walls shall be limited by Structural Adequacy.

Vertically spanning walls may be chased vertically. Where the

chase is horizontal it is limited to 4 times the wall thickness.

Vertically and horizontally spanning walls, may be chased i the

length o the chase is not greater than hal the height (or a

vertical chase) or hal the length (horizontal chase) o the wall.

Where the length o chase is greater than hal the height or hal

the length, the wall must be designed as 2 walls with

unsupported ends (or a vertical chase). For horizontal chases

greater than hal o the wall length the masonry design thickness

must be reduced by the depth o the recess (horizontal chase).

Recesses for services

AS3700 Clause 6.6 states the eect o recesses or services on

the fre resistance periods, or Structural Adequacy, Integrity and

Insulation o a wall shall be ignored, provided that the depth o

material removed is not greater than hal the wall thickness and

the total area o recesses is not more than 10,000mm2 total o

both aces within any 5m2 o wall area. Where these limits are

exceeded , the member thickness o the masonry shall be taken

as the overall thickness o the wall less the depth o the recess.

(Where the wall is constructed o cored or hollow units,the recess can extend into the cores).


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4 | Austral Masonry

Fire resistance levels or the Alphalite Range

Code

Size (mm)

L x W x T

Strength

(fuc) MPa

Typical Unit

Weight (kg)

Typical Block Wall

Density (with

Mortar) Kg/m2

Fire Resistance Levels Maximum

Slenderness Ratio (Srf)

(as per AS3700, Clause 6.3.2.2)

10-01

390 x 190 x 90

15 8.2 114 120(Srf


5/16


27.8 27.1 25.15 22.4 20.45

36 36 36 36 36

Code Dimensions

L x H x T (mm)

Unit Type fuc

MPa

Unit

Weight

kg 60 90 120 180 240

10-01 390 x 190 x 90 Cored 15 8.2

10-31 390 x 190 x 90 Solid 10 10.8

TwinBrick 230 x 162 x 110 Cored 5full bed

4.8

12-01 390 x 190 x 110 Hollow 15 8.8

12-01c 390 x 190 x 110 Cored 5full bed

9.1

15-01 390 x 190 x 140 Hollow 15 10.0

15-42 390 x 190 x 140 Reinforced andcore filled

15 9.7


15 10.0

15-401 390 x 190 x 140 Cored 10 14.8

20-01 390 x 190 x 190 Hollow 15 12


15 11.5


15 10.5

20-401 390 x 190 x 190 Hollow 10 16


15 14

Maximum insulation FRL in minutes

Hollow and Solid

Reinforced andCore-filled

Maximum Slenderness Ratio (Srf)

Insulation (minutes) FRL (minutes)


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6 | Austral Masonry

Structural Adequacy Charts & Tables

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

10.0

9.0

wallheight

Wall length

90mm

110mm

140mm

190mm

Intersection point, wall is too big

for 90mm OK for 110mm thick.

Walls with their intersection point in this area

should be checked for Robustness, particularly

if one end is unrestrained.

0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0

How to use the charts

First, fnd the page with the required FRL: 60, 90, 120, 180 or 240

minutes. Next, fnd the graph with the restraint conditions o

your proposed wall. Note: walls unrestrained at either end are

governed by the height ormula only. The maximum height

or each thickness is given at the oot o the page. Finally,

plot the intersection o your walls height and length on the

appropriate graph. The thickness required is represented

by those lines clear o the intersection point.

Alphalite masonry that is designed or other loads

(vertical, bending, earthquake etc.) can be checked

or its Structural Adequacy FRL by using the ollowing

graphs. The three ormulae are graphed, with a line

or each wall thickness: 90, 110, 140 and 190mm.


7/16


60 Minute Structural Adequacy FRL(Sr 27.8)

Note: Heights are

governed by Robustness

formulae, using lateral

restraint only. These

heights can be exceeded

where rotational restraint

is provided by the

wall supporting a

concrete slab.

Supported

along top

and base only.

190 mm

140 mm

110 mm

90 mm

SUPPORT

SUPPORT

Wall Max height Max height

thickness with lateral top with rotational top

restraint (L/t > 5) restraint (L/t > 5)

290mm 7.83m 10.44m

190mm 5.13m 6.84m

140mm 3.78m 5.04m

110mm 2.97m 3.96m

90mm 2.43m 3.24m

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

HeightofWallbe

tweenSupports(m)

0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0

Length of Wall between Supports (m)

Laterally supported along top,both ends and base.

190 mm

140 mm

110 mm

90 mm

SUPPORT

SUPPORT

SUPPORT

SUPPORT

Laterally supported alongboth ends and base

SUPPORT

SUPPORT

SUPPORT

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

HeightofWallbetweenSupports(m)

0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0


190 mm

140 mm110 mm90 mm

Laterally supported along top,one end and base.

SUPPORT

SUPPORT

SUPPORT

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0


0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0


190 mm

140 mm

110 mm

90 mm

Laterally supported oneend and base.

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0


0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0


190 mm140 mm110 mm90 mm

SUPPORT

SUPPORT


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8 | Austral Masonry


Note: Heights are






is provided by the

wall supporting a

concrete slab.




290mm 7.83m 10.44m

190mm 5.13m 6.84m

140mm 3.78m 5.04m

110mm 2.97m 3.96m

90mm 2.43m 3.24m


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

HeightofWallbe

tweenSupports(m)

0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0


190 mm

140 mm

110 mm

90 mm

SUPPORT

SUPPORT

SUPPORT

SUPPORT


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0


0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0


190 mm

140 mm110 mm90 mm

SUPPORT

SUPPORT

SUPPORT

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0



0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0


190 mm

140 mm

110 mm90 mm

SUPPORT

SUPPORT

SUPPORT


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0


0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0


190 mm140 mm110 mm90 mm

SUPPORT

SUPPORT

Supported

along top

and base only.

190 mm

140 mm

110 mm

90 mm

SUPPORT

SUPPORT


9/16



Note: Heights are






is provided by the

wall supporting a

concrete slab.




290mm 7.83m 9.72m

190mm 5.13m 6.37m

140mm 3.78m 4.69m

110mm 2.97m 3.69m

90mm 2.43m 3.02m

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0


HeightofWallbe

tweenSupports(m)

0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0


190 mm

140 mm

110 mm

90 mm

SUPPORT

SUPPORT

SUPPORT

SUPPORT

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0



0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0


190 mm

140 mm110 mm90 mm

SUPPORT

SUPPORT

SUPPORT


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0


0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0


190 mm

140 mm

110 mm

90 mm

SUPPORT

SUPPORT

SUPPORT


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0


0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0


190 mm140 mm110 mm90 mm

SUPPORT

SUPPORT

Supported

along top

and base only.

190 mm

140 mm

110 mm

90 mm

SUPPORT

SUPPORT


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10 | Austral Masonry

180 Minute Structural Adequacy FRL (Sr 22.4)

Note: Heights are






is provided by the

wall supporting a

concrete slab.




290mm 7.83m 8.66m

190mm 5.13m 5.67m

140mm 3.78m 4.18m

110mm 2.97m 3.28m

90mm 2.43m 2.69m

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0


HeightofWallbe

tweenSupports(m)

0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0


190 mm

140 mm

110 mm

90 mm

SUPPORT

SUPPORT

SUPPORT

SUPPORT


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0


0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0


190 mm140 mm110 mm90 mm

SUPPORT

SUPPORT

SUPPORT


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0


0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0


190 mm

140 mm

110 mm

90 mm

SUPPORT

SUPPORT

SUPPORT


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0


0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0


190 mm140 mm110 mm90 mm

SUPPORT

SUPPORT

Supported

along top

and base only.

190 mm

140 mm

110 mm

90 mm

SUPPORT

SUPPORT


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240 Minute Structural Adequacy FRL (Sr 20.45)

Note: Heights are






is provided by the

wall supporting a

concrete slab.




290mm 7.83m 7.90m

190mm 5.13m 5.18m

140mm 3.78m 3.81m

110mm 2.97m 3.00m

90mm 2.43m 2.45m

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0



0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0


190 mm

140 mm

110 mm

90 mm

SUPPORT

SUPPORT

SUPPORT

SUPPORT

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0



0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0


190 mm140 mm110 mm90 mm

SUPPORT

SUPPORT

SUPPORT


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0


0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0


190 mm

140 mm

110 mm

90 mm

SUPPORT

SUPPORT

SUPPORT


0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0


0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0


190 mm140 mm110 mm90 mm

SUPPORT

SUPPORT

Supported

along top

and base only.

190 mm

140 mm

110 mm

90 mm

SUPPORT

SUPPORT


12/16


Materials

Alphalite masonry units are manuactured at our

Port Kembla plant, next door to the supplier o hal o the

aggregates used to make Alphalite material. All o the

aggregates used in the Alphalite mix are by-product

materials. No quarrying o natural sands or stones

is required and there is no crushing o stone or coarse

aggregates. Almost hal o the cement paste is made uprom by-product material. The small amount o production

waste that we generate is re-cycled into the Alphalite mix.

Emissions

Alphalite is kiln-cured, but unlike clay masonry units, the

heat is low and largely exothermic, with some steam added

or even curing. Alphalite masonry units are 30% lighter than

standard concrete masonry. This reduces

emissions due to transport.

Durability

The masonry structures code: AS3700:2001, Section 5,

defnes what areas require higher durability and prescribes

AS/NZS4456.10 as the method o test. When tested to AS/NZS4456.10, Alphalite masonry units achieved the Exposure

Grade rating which AS3700 requires or masonry in severe

marine environments (areas within 1km o a sur

coast or within 100m o tidal waters).

Summary

The patented Alphalite mix was designed with the

intention o using as much by-product material as possible.

No beaches or river beds are disturbed and cement usage is

minimised. Alphalite is low-pressure cured with minimal

steam required. This low embodied energy combines with

higher durability to make a avourable lie-cycle analysis;

at the close o which, Alphalite masonry can be

crushed and re-used.

Environmental responsibility


13/16


Acoustics

This section describes the measurement o acoustic ratings,

the BCA requirements or residential buildings and details o

research and development o successul wall systems.

Rw (weighted sound reduction index)

Rw is a type o average o low to high requencies,

calculated rom a walls sound transmission losses

over 16 requencies. It is measured in decibels (dB).

Low requency sound waves (e.g. rom a bass guitar)

are large and intrusive. Their sound transmission loss is below

Rw (average). At the other end o the scale, high requency

sound waves (e.g. violin, piccolo) are short wave, less

intrusive and their sound transmission loss is above average.

A typical sound rating is expressed as Rw 55 (-1; -5).

The frst fgure in the brackets is C which indicates irregular

perormance in the high requencies. It is not addressed inthe BCA. The second fgure in the brackets is Ctr and is

essential in BCA requirements or party walls.

Ctr (low frequency spectrum adaptor)

Ctr is an indicator o how much lower the walls

perormance would be i the noise source was mainly low

requency. Ctr is a negative number. The sound rating

above o Rw 55 dB with a Ctr o -5 gives Rw + Ctr = 50.

BCA Acoustic requirements

Party Walls

These walls are described in the BCA, Part F5, as wallsthat separate sole-occupancy units (also known as

inter-tenancy walls). This includes townhouses, high-rise

home units, three-storey ats, hotels and similar residential

buildings. Except or Class 9c buildings (aged care units);

party walls require a minimum sound rating o Rw + Ctr 50.

A party wall that separates one sole-occupancy units wet

area (a bathroom, laundry, kitchen etc.) rom a habitable

room in another sole-occupancy unit is required

to be o discontinuous construction.

Corridor Walls Walls that separate a sole-occupancy unit

rom a plant

room, lit shat, corridor, stair, oyer or similar public area,

require a minimum sound rating o Rw 50. There is no Ctradjustment. Walls that separate a sole-occupancy unit

rom a plant room or lit shat are required to be o

discontinuous construction.

Discontinuous Construction

The BCA describes discontinuous construction as a wall

having a minimum 20mm cavity between 2 separate leaves.

Where the 2 separate leaves are

both masonry, the BCA allows

resilient wall ties i required.

As they are rarely required, their

omission will not only save money

but improve the acoustic

perormance o cavity

(double- lea masonry) walls.

Research and Development

In 2007, the National Acoustic Laboratory tested 110mm

thick Alphalite 12-01 Chaser masonry with various liningsystems. Test 2057, with a 64mm independent stud wall

system, achieved Rw + Ctr 50 (the BCA requirement

or walls separating home units).

This wall also meets the BCA requirement to resist the

transmission o impact-generated sound wherever an

inter-tenancy wall separates a wet area (bathroom /

laundry / kitchen etc) rom a habitable room.

Alphalite Twinbrick masonry has 5% more mass per m2

than the 12-01 Chaser. It was thereore assessed to

perorm as well as the Chaser block.

Both the Twinbrick and Chaser block exceed the BCA fre

rating requirements or typical home unit walls beore adding

any lining system. All the home unit masonry can be done

with either Twinbricks or Chaser blocks, avoiding the risk

o using unrated masonry where fre or acoustic

ratings are required.

Independent Stud System (impact rated)

Bedroom - Dwelling 1 Bedroom - Dwelling 2

Bathroom - Dwelling 2

Public Lobby

Bedroom - Dwelling 1

Bedroom - Dwelling 1

Construction: Habitable to habitable.Requirements: Rw + Ctr > 50.

Construction: Habitable to wetRequirements: Rw + Ctr > 50 with

discontinuous construction.

Construction: Habitable to corridor or public areaRequirements: Rw + Ctr > 50 with discontinuousconstruction (if lift shaft or plant room).

215mm

13mm standard plasterboard

Tontine TSB4 insulation

64mm metal studs @ 600mm

centres, 15mm clear of

masonry (20mm clear

for impact rating)

13mm standard

plasterboard,

daub-fixed

OR

13mm

cement render

12.01

Chaser or

Twinbrick


14/16


10.31 Alphalite

Rw+Ctr>50

Impact Rated

13mm standard plasterboard,

daub - fixed OR 13mm cement render

195mm


Tontine TSB4 insulation,

64mm metal studs @600mm

centres, 15mm clear of masonry

(20mm clear for impact rating)

10.31 Alphalite

Rw+Ctr>50

Laid as a 190mm

thick solid wall

13mm cement render

216mm

13mm cement render

10.31 Alphalite

Rw>50



146mm


Tontine TSB2 polyester insulation,

28mm furring channel on

standard clips

110mm Alphalite 12.01 Chaser

Rw42 (-1; -4)

NAL Test #2054

Bare

110mm

Bare


Rw47 (-1; -5)

NAL Test #2060

13mm cement render

136mm

13mm cement render


Rw46 (-1; -4)

NAL Test #2059


daub - fixed

138mm

13mm cement render


Rw46 (-1; -5)

NAL Test #2058


daub - fixed

140mm


daub - fixed


or Twinbrick

Rw>50



166mm


Tontine TSB2 polyester insulation,

28mm furring channel onstandard clips

Acoustic perormance o Masonry walls


15/16



Rw57 (-3; -7)

Rw+Ctr=50

impact rated

NAL Test #2057


daub - fixed

222mm



64mm metal studs 15mm clear

of masonry (20mm clear for

impact rating)

12.01 Chaser or Twinbrick

Rw+Ctr>50

Impact Rated

13mm standard plasterboard, daub -

fixed OR 13mm cement render

215mm



64mm metal studs @600mm

centres, (20mm clear for

impact rating)

12.01 Chaser or Twinbrick

Rw+Ctr>50

Impact Rated

16mm fire-rated plasterboard, daub -


296mm

16mm fire-rated plasterboard, daub -


15.401

Rw>50

Assessment PKA-A062


daub - fixed, Cores packed with

mortar (2000kg/m3)

170mm


daub-fixed

15.401

Rw>52

Assessment PKA-A062

13mm cement render, Cores packed

with mortar (2000kg/m3)

166mm

13mm cement render

15.401

Rw>52

Assessment PKA-A062

16mm fire-rated plasterboard,


mortar (2000kg/m3)

171mm

13mm cement render

15.401

Rw>51

Assessment PKA-A062



mortar (2000kg/m3)

176mm


daub - fixed

Acoustic performance information for walls requiring Rw + Ctr > 50 and Rw > 50 are presented in these pages.

Acoustic performance estimates have been calculated by PKA (Acoustic Consultants).


16/16

WNINK

The product images in our brochures give a general indication of colour for your preliminary selection.We recommend you also view current product samples before making your final selection. Printed April 2011

Horsley Park738 -780 Wallgrove RoadHorsley Park

Canberra7 Lithgow StreetFyshwick

Newcastle1b George StreetMayfeld

Punchbowl62 Belmore RoadPunchbowl

1300 MASONRY (1300 627 667)

Head ofce.

738-780 Wallgrove Rd,Horsley Park 2175PO BOX 6550Wetherill Park NSW 1851

Tel. 02 9830 7896Fax. 02 9831 7894

[email protected]

NSW & ACT Display Centres

www.australmasonry.com.au

A division of

Tuggerah19 Bryant DriveTuggerah

Bowral1 Kiama StreetBowral

Illawarra45 Princes HwyAlbion Park Rail

Port Macquarie42 Jindalee RdPort Macquarie

Austral Masonry Fire and Sound Rating Technical Manual

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Transcript of Austral Masonry Fire and Sound Rating Technical Manual