andrew wachtels presentation on sealing aggregates and precoating november 201
TRANSCRIPT
![Page 1: Andrew Wachtels presentation on sealing aggregates and precoating November 201](https://reader033.vdocuments.net/reader033/viewer/2022052916/589bf7981a28ab40348b681d/html5/thumbnails/1.jpg)
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Producing Sealing Aggregates to
Optimise Performance on Spray Sealed Pavements
Engineering Businesses to Drive Operations Excellence
1996 - today
Nove
mb
er 2
01
5
![Page 2: Andrew Wachtels presentation on sealing aggregates and precoating November 201](https://reader033.vdocuments.net/reader033/viewer/2022052916/589bf7981a28ab40348b681d/html5/thumbnails/2.jpg)
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What is a good or acceptable sealing aggregateA
gg
re
gate
p
ro
pe
rtie
s
Grading
Fines
Flakiness
Los
Angeles
PSV/PAFV
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Sh
ap
e o
f a
gg
re
gate
s
Why are river
gravel rocks
round ?
Why are
crushed rocks
cubic and non
cubic
![Page 4: Andrew Wachtels presentation on sealing aggregates and precoating November 201](https://reader033.vdocuments.net/reader033/viewer/2022052916/589bf7981a28ab40348b681d/html5/thumbnails/4.jpg)
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Sh
ap
e o
f a
gg
re
gate
sWhy is ALD important in
sealing aggregates ?
![Page 5: Andrew Wachtels presentation on sealing aggregates and precoating November 201](https://reader033.vdocuments.net/reader033/viewer/2022052916/589bf7981a28ab40348b681d/html5/thumbnails/5.jpg)
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Size
o
f a
gg
re
gate
sNominal Sizes
14mm
10mm
7mm
5mm
![Page 6: Andrew Wachtels presentation on sealing aggregates and precoating November 201](https://reader033.vdocuments.net/reader033/viewer/2022052916/589bf7981a28ab40348b681d/html5/thumbnails/6.jpg)
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Ag
gre
gate
s p
ro
pe
rtie
sHow do you pre coat aggregates
Is dust on a conforming aggregate good or bad ?
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Wa
sh
in
g a
gg
re
gate
s
Wash screen
![Page 8: Andrew Wachtels presentation on sealing aggregates and precoating November 201](https://reader033.vdocuments.net/reader033/viewer/2022052916/589bf7981a28ab40348b681d/html5/thumbnails/8.jpg)
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Pre
c
oatin
g P
ro
ce
ss
Washed Aggregate to be pre coated
![Page 9: Andrew Wachtels presentation on sealing aggregates and precoating November 201](https://reader033.vdocuments.net/reader033/viewer/2022052916/589bf7981a28ab40348b681d/html5/thumbnails/9.jpg)
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Pre
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oatin
g P
ro
ce
ss
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Pre
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oatin
g P
ro
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ss
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Pre
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oatin
g P
ro
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ss
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Pre
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oatin
g P
ro
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ss
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Pre
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oatin
g P
ro
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ss
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Pre
c
oatin
g P
ro
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ss
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Pre
c
oatin
g P
ro
ce
ss
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Qu
estio
ns
thank you for your time