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This was discussed before. Concrete roads are more expensive but have reduced maintainance costs, especially for roads that see a high amount of truck usagehow good is he wrote:Any reason considering the advantages over bitumen they don’t build more roads out of concrete then?
Anyone know how does the cost compare?
Concrete roads also have less rolling resistance than asphalt roads.Norman wrote: ↑Thu Dec 13, 2018 9:51 amThis was discussed before. Concrete roads are more expensive but have reduced maintainance costs, especially for roads that see a high amount of truck usagehow good is he wrote:Any reason considering the advantages over bitumen they don’t build more roads out of concrete then?
Anyone know how does the cost compare?
One reason for their relative unpopularity is that a lot of motorways built in Europe/UK with concrete in the post war period quickly got a bad reputation for the constant loud road buzz & 'bump bump bump' sensation as you drove over the gaps and cracks in the surface. The last few remnants of concreted motorways in the UK are being asphalted because of this. Modern construction techniques may have largely solved these problems - I guess we will find out after a few years of use how the northern expressway turns out in that respect.rogue wrote: ↑Thu Dec 13, 2018 10:15 amConcrete roads also have less rolling resistance than asphalt roads.Norman wrote: ↑Thu Dec 13, 2018 9:51 amThis was discussed before. Concrete roads are more expensive but have reduced maintainance costs, especially for roads that see a high amount of truck usagehow good is he wrote:Any reason considering the advantages over bitumen they don’t build more roads out of concrete then?
Anyone know how does the cost compare?
I wonder how long before it cracks during our extreme summer heat.Listy wrote: ↑Thu Dec 13, 2018 10:51 amOne reason for their relative unpopularity is that a lot of motorways built in Europe/UK with concrete in the post war period quickly got a bad reputation for the constant loud road buzz & 'bump bump bump' sensation as you drove over the gaps and cracks in the surface. The last few remnants of concreted motorways in the UK are being asphalted because of this. Modern construction techniques may have largely solved these problems - I guess we will find out after a few years of use how the northern expressway turns out in that respect.
Texas seems to be fine with concrete interstatesrev wrote: ↑Thu Dec 13, 2018 7:10 pmI wonder how long before it cracks during our extreme summer heat.Listy wrote: ↑Thu Dec 13, 2018 10:51 amOne reason for their relative unpopularity is that a lot of motorways built in Europe/UK with concrete in the post war period quickly got a bad reputation for the constant loud road buzz & 'bump bump bump' sensation as you drove over the gaps and cracks in the surface. The last few remnants of concreted motorways in the UK are being asphalted because of this. Modern construction techniques may have largely solved these problems - I guess we will find out after a few years of use how the northern expressway turns out in that respect.
In Britain even when they were new, the concrete sections of motorway built in the 1980s were a lot noisier than the asphalt sections. So when I was at uni I was surprised to hear the opposite was the case on the Hume Highway. But I've not travelled over the concrete sections of that, so I'd be interested to hear the opinions of anyone here who has.Listy wrote:One reason for their relative unpopularity is that a lot of motorways built in Europe/UK with concrete in the post war period quickly got a bad reputation for the constant loud road buzz & 'bump bump bump' sensation as you drove over the gaps and cracks in the surface. The last few remnants of concreted motorways in the UK are being asphalted because of this. Modern construction techniques may have largely solved these problems - I guess we will find out after a few years of use how the northern expressway turns out in that respect.
It depends on the car you're driving, but it was fine last time I drove on it. There wasn't too much noise, especially on the newer sections.Aidan wrote:In Britain even when they were new, the concrete sections of motorway built in the 1980s were a lot noisier than the asphalt sections. So when I was at uni I was surprised to hear the opposite was the case on the Hume Highway. But I've not travelled over the concrete sections of that, so I'd be interested to hear the opinions of anyone here who has.Listy wrote:One reason for their relative unpopularity is that a lot of motorways built in Europe/UK with concrete in the post war period quickly got a bad reputation for the constant loud road buzz & 'bump bump bump' sensation as you drove over the gaps and cracks in the surface. The last few remnants of concreted motorways in the UK are being asphalted because of this. Modern construction techniques may have largely solved these problems - I guess we will find out after a few years of use how the northern expressway turns out in that respect.
I like how the renders show the surface as being asphalt.Mr Messy wrote: ↑Thu Dec 20, 2018 12:10 pmThere are now some decent images on the project site.
https://infrastructure.sa.gov.au/nsc/no ... eo_gallery
Click through the render for each interchange
I think those pictures were done before the decision to use concrete. They are only "artist's impressions, and "everybody knows" that roads are grey. The artist's render of the northern interchange is missing two supports that are presently under the PWR bridge. I doubt they are planned to be removed, so am happy to take any other details as artistic too.ChillyPhilly wrote: ↑Thu Dec 20, 2018 7:43 pmI like how the renders show the surface as being asphalt.Mr Messy wrote: ↑Thu Dec 20, 2018 12:10 pmThere are now some decent images on the project site.
https://infrastructure.sa.gov.au/nsc/no ... eo_gallery
Click through the render for each interchange