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[p@] 13/7/2019 10:50

I wonder if they have tried shredded bamboo ,in cement?

[woodpeckers] 13/7/2019 10:34

As Highways England are paying to be Tier 1 partners at the GEIC it suggests that they are already confident that they will be using graphene so not a Q of 'if' rather in how many ways can they use it. 😊

[superg1] 13/7/2019 10:10

3 days ago in news

Highways England is to explore using wonder material graphene in the construction of roads, after partnering with the Graphene Engineering Innovation Centre (GEIC).

The collaboration will look at how the material can help address challenges experience by the road network in England, such as the deterioration of road and pavement surfaces.

Related

US discovery could lead to mass production of super material
GEIC said adding graphene into maintenance and renewals operations had the potential to extend the life of road assets and improve the performance of the roads.

The partnership will explore the operational and road user benefit of incorporating graphene into assets such as road surfacing and road markings.

Paul Doney, innovation director at Highways England, said: “We are really excited about the opportunity to explore leading-edge materials and what this might lead to for our road network. GEIC is at the forefront, having made the discovery here in Manchester, and by building a collaboration with our operations teams who understand the challenges, we are looking to deliver improved safety and performance of our roads.”

[superg1] 13/7/2019 09:40

Concrete

I see it's a topic. I wondered re viability but then didn't appreciate the speciality uses where concrete would normally be used but isn't viable due to it's current limits. Existing uses where improvement is desired.

It is absolutely viable and in the pot for VRS.

EG as pointed out way Aecom were experimenting with graphene in concrete for 3D printing along with 60 other materials.

[markyboy5] 13/7/2019 09:36

I am not expecting much on that front, updates would be good

[loveder] 13/7/2019 09:19

Nice one Marky I've been looking at getting a new bike.
Let's hope the results are ok on Wednesday!

[markyboy5] 13/7/2019 08:26

1.5 miles from AAC 5 minutes away. I wonder if Neill has called in ?

[markyboy5] 13/7/2019 08:13

As the Tour de France is now under way I thought that some people would be interested in this.
Dassi: a UK company using Graphene in bike frames.
What I found interesting is the company that actually make them.
Brick kiln composites. Banbury, Oxford.

hxxps://www.cyclist.co.uk/in-depth/2204/insider-dassi-bikes-pictures#3
hxxps://www.brickkilncomposites.com/

[ad631] 13/7/2019 06:35

Neill Ricketts Retweeted Tirupati Graphite @Tirupatiuk Jul 11 More 'Ahead of our Road Show next week in London, we prepared a new Flyer, it provides the latest updates, progress & future plans of Tirupati Graphite' - so do we now know the next piece of the jigsaw in our global supply chain? - if so, the roadmap does seem to be coming together rather nicely:) hxxps://tirupatigraphite.co.uk/

[1teepee] 13/7/2019 00:32

They probably would add it after the grinding though

[1teepee] 13/7/2019 00:31

Excellent research to both ser and brenner

[serratia] 13/7/2019 00:31

You've set me off on another hour or so Mike. I think cement kilns run at around 1500 centigrade which is above the temperature at which Graphene is destroyed.

[mikebrenner] 12/7/2019 22:59

Read the same science papers and concur 100% serratia with your analysis ... would add that 2d graphene also disperses easily in concrete manufacturing process as can replace water being mixed with cement and instead use a water based graphene solution at industrial scale (eg graph inks liquid phase exfoliation and high sheer blending).What I'm yet to find studies on is the potential to mix graphene powders like Nanene in the cement manufacturing process pre kiln and clinker with associates potential to reduce energy costs ... or if it can be added and dispersed successfully as a powder post kiln / clinker grinding ... opens up many other applications from mortar to tiles on top of concrete. Sure AECOM and Chinese concrete collaboration are all over this but fascinated to know "how"!!

[serratia] 12/7/2019 22:34

The other question asked re the underwater electricity generation system. Graphene would make the 'wing' lighter so perhaps a smaller wing could be used to generate the lift. Perhaps lighter turbine blades. I'm not sure that it would directly improve electricity generation unless the generator itself could be improved.

[serratia] 12/7/2019 22:24

Cement - The question was asked whether blast furnace slag can substitute up to 80% in place of cement in concrete and be improved by Nanene ?

When you add water to cement the microcrystalline powder which is mainly Calcium silicates is transformed into hydrated crystals fibrous crystals. Graphene alters the morphology of the crystals. The crystals bond to Graphene and act as nucleation sites promoting the growth of the crystals along the surface of the Graphene flakes. which leads to an increase in the bond strength of the cement. The degree of crystallinity is very important in determining the physical properties of cement. In addition Graphene itself improves the resistance to compression of the cement.
Another factor which determines the compressive strength of concrete is the degree of porosity due to unhydrated crystals. Graphene as per above improves the crystallisation process creating less void space. Also in the cement there will be Calcium hydroxide crystals. These are water soluble and can leach out creating more void space. Graphene helps to make the cement more waterproof and reduces this issue.

I'd have to look at the reactions of water with furnace slag. The addition of 80% slag and 20% cement would be improved by Nanene acting on the 20% cement so it would be stronger than Nanene free material but I couldn't say if the size of the benefit would match the improvement shown on 100% concrete.

Just for interest few layer Graphene has been shown to increase compression strength by 146%, carbon nanotubes by 50% and Graphene oxide by 33%. CNT's are hampered by their incompatibility with cement hydrates. GO is hydrophilic absorbing the water and hampering proper hydration of the crystals. In addition other chemical reactions affect the GO causing defects which reduce performance.
There's work on 100nm thick Graphene - 300 layer + which didn't do a great deal for strength but was focused on electrical conductivity.

[ad631] 12/7/2019 21:48

Well if the banks were too big to fail....acknowledging the sheer world wide academic, commercial and political momentum behind graphene, then surely now VRS is too important in the global graphene matrix not to succeed. Indeed, is the commercial success of the whole 'high quality end' of the graphene industry in essence currently resting on the shoulders of VRS? - and we appear to be so tantalisingly close to proving it :)

[1teepee] 12/7/2019 19:43

I think at least one of them is. I am not completely sure though

[dgduncan] 12/7/2019 19:40

Not about graphene cement - about a graphene radiator scam.

[1teepee] 12/7/2019 19:36

Definitely could;)

[laginaneil] 12/7/2019 19:33

Yes I know but maybe we could improve it..

[1teepee] 12/7/2019 19:21

Btw you know that article is not about Graphene cement?

[1teepee] 12/7/2019 19:19

Sorry if I upset anyone;)

[1teepee] 12/7/2019 19:10

hTTps://radiantpaneltechnologies.com/graphene-heating-system-dramatically-reduces-home-energy-costs/

[1teepee] 12/7/2019 19:10

hTTps://radiantpaneltechnologies.com/graphene-heating-system-dramatically-reduces-home-energy-costs/