A DIY & home improvement forum. DIYbanter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » DIYbanter forum » Do - it - Yourself » UK diy
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions.

Difference between asphalt and bitumen?



 
 
LinkBack Thread Tools Display Modes
  #1  
Old April 3rd 05, 02:13 PM
MrC
external usenet poster
 
Posts: n/a
Default Difference between asphalt and bitumen?

Folks

My neighbour is getting quotes for surfacing his driveway. He's
getting contractors offering him either a bitumen surface or an
asphalt one for about 50% extra cost (may have that the wrong way
round).

He's asked me and I've no idea what the difference between the two is
and I've no idea. From some brief searches it seems a bit confusing
i.e. bitumen is used to make asphalt?

Can anyone advise on the difference and would you recommend it? The
two prices are about 1,500 vs 2,300 or thereabouts?

thanks

tommy
Ads
  #2  
Old April 6th 05, 10:34 AM
[email protected]
external usenet poster
 
Posts: n/a
Default

In article , MrC
writes
Folks

My neighbour is getting quotes for surfacing his driveway. He's
getting contractors offering him either a bitumen surface or an
asphalt one for about 50% extra cost (may have that the wrong way
round).

He's asked me and I've no idea what the difference between the two is
and I've no idea. From some brief searches it seems a bit confusing
i.e. bitumen is used to make asphalt?

Can anyone advise on the difference and would you recommend it? The
two prices are about 1,500 vs 2,300 or thereabouts?

thanks

tommy


Bitumen is a component used in the manufacture of asphalt, its normally
a liquid that is mixed with fillers and aggregate to produce a finished
material. By a bitumen surface they are probably referring to a spray
system where the bitumen is applied to the surface either with an
aggregate in it or the aggregate can be sprinkled on whilst the bitumen
is still wet, if you use pea shingle you get a nice gravel effect drive
that stays in one place. By an asphalt surface you are looking at the
traditional finish that we all love (or hate). Something to consider is
the longevity of the spray applied system, it wont last as long as the
asphalt, how long this is will depend on the amount of traffic
--
David
  #3  
Old April 6th 05, 11:11 PM
Capitol
external usenet poster
 
Posts: n/a
Default


I believe that a bitumen surface is applying a mix of small gravel and
bitumen, an asphalt surface is bitumen mixed with a wide range of
particle sizes( like a concrete mix). Asphalt is ideally applied as a
much thicker layer, with a much heavier roller as it is a less flexible
mix, but takes greater loadings. IME, both are poor surfaces compared
with concrete. Asphalt in particular suffers from surface "heave" if the
subsoil/base is not stable.

Regards
Capitol
  #5  
Old April 8th 05, 10:44 AM
The Natural Philosopher
external usenet poster
 
Posts: n/a
Default

Paul Mc Cann wrote:

In article ,
says...

I believe that a bitumen surface is applying a mix of small gravel and
bitumen, an asphalt surface is bitumen mixed with a wide range of
particle sizes( like a concrete mix). Asphalt is ideally applied as a
much thicker layer, with a much heavier roller as it is a less flexible
mix, but takes greater loadings. IME, both are poor surfaces compared
with concrete.



??

Haven't seen them building concrete roads in years. They were usually an
un-mitigated disaster.



No, they can and do last ages. If built properly. Cheap too. Hrad
wearing, but nosiy and low grip.


Asphalt in particular suffers from surface "heave" if the
subsoil/base is not stable.



Concrete will crack in similar circumstances. Once it cracks and rain
gets in, followed by frost, its well on its way to Valhalla.

I think they are both ugly but the alternative of gravel drove me nuts.

Some years back we replaced gravel (P.I.A.) with what I think the
installer caled tarmacadam. He gave me the impression asphalt was very
heavy duty applications,and mostly suitable for roads, bit of an over
kill for drives.


The original macadam roads were IIRC crushed stone chippings that bedded
down. MOT type I etc. Tarmacadam (tarmac) was the application of a
layer of hot tar to the surface into whch chippings are rolled. Tough
flexible and reasonably hard wearing, and NO DUST (the bane of the 30's
motorists). Its what most B roads are. Coulur depends on what colour
chippings are rolled in. Flint makes for a briown road, granite for a
grey/black one.


Asphalt is I think a deeper layer of tar and stone filler, that is super
smooth and what best motorways are made of. You can even add ground up
car tyres for super quite and exta good grip.

Bitumen? Not sure what that is - maybe a cold applied layer with
chippings thrown on top. Sets by solvent evaoporation?



Bitumen to him was something cowboys specialised in.

Whatever he used for us it is standing up beautifully.

  #6  
Old April 8th 05, 06:41 PM
MrC
external usenet poster
 
Posts: n/a
Default

On Fri, 08 Apr 2005 10:44:20 +0100, The Natural Philosopher
wrote:

Thanks all for the feedback. I'll pass it on.

tommy
  #7  
Old April 9th 05, 08:39 PM
Capitol
external usenet poster
 
Posts: n/a
Default



Paul Mc Cann wrote:

Haven't seen them building concrete roads in years. They were usually an
un-mitigated disaster.


All new motorways have a concrete base! Topped with a bituminous layer
which is replaceable when it wears.

Regards
Capitol
  #9  
Old April 11th 05, 03:50 AM
The Natural Philosopher
external usenet poster
 
Posts: n/a
Default

Capitol wrote:



Paul Mc Cann wrote:


Haven't seen them building concrete roads in years. They were usually
an un-mitigated disaster.



All new motorways have a concrete base! Topped with a bituminous
layer which is replaceable when it wears.


NO, they don't.

  #10  
Old April 11th 05, 08:32 PM
Capitol
external usenet poster
 
Posts: n/a
Default



The Natural Philosopher wrote:
All new motorways have a concrete base! Topped with a bituminous
layer which is replaceable when it wears.


NO, they don't.


Go out and look at the M11 repairs! Pratt!

Regards
Capitol
 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


All times are GMT +1. The time now is 02:45 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.SEO by vBSEO ©2010, Crawlability, Inc.
Copyright 2004-2014 DIYbanter.
The comments are property of their posters.