Trainman40083
Established Member
If I recall, Hope ash has to be delivered by rail.Hope is or has been using ash from Ratcliffe and Fiddlers Ferry.
If I recall, Hope ash has to be delivered by rail.Hope is or has been using ash from Ratcliffe and Fiddlers Ferry.
As per my previous reply, it's been running from Drax and Ratcliffe (loaded at Maltby) for a while now;If I recall, Hope ash has to be delivered by rail.
As per my previous reply, it's been running from Drax and Ratcliffe (loaded at Maltby) for a while now;
the Drax train runs during the night, but here is a photo I found of the Malby working:
Similar to the sand for Ravenhead.Looking at the photo, surprised the wagons aren't covered....
Your last words reminds me of MGR trains, before they put the tops on.Similar to the sand for Ravenhead.
I am surprised Network rail have not mandated starch suppression spraying to stop the dust.
I am even more surprised there have not been multiple claims from passengers waiting on high speed platforms for injury via dust in the eyes.
Those numbers seem crazy (I don’t doubt them though) - but some quick fag packet maths with an assumption of 1,500t product per train and 3 trains per week is over 65 years!Approval given to remove a 23.5 million tonnes ash mountain from Drax power station. One condition is that 65 percent is moved by rail.
Feedstock for cement production.Ask a stupid question... what will be done with the ash? Is the big ash pile just getting moved to another big ash pile?
It's used in the manufacture of cement (as is pulverised slate from North Wales)Ask a stupid question... what will be done with the ash? Is the big ash pile just getting moved to another big ash pile?
It has been a long time since I was involved in concrete, but did the use of ash create a lighter product?Feedstock for cement production.
Feedstock for cement production.
Ah! Thank you, cement enthusiasts!It's used in the manufacture of cement (as is pulverised slate from North Wales)
Drax ash mound extraction plan approved for Selby site - BBC News https://share.google/SRGURGmAdAyj90HJXThose numbers seem crazy (I don’t doubt them though) - but some quick fag packet maths with an assumption of 1,500t product per train and 3 trains per week is over 65 years!
I think it is a substitute for the clay minerals needed to go with the calcium carbonate in the kiln to produce Portland cement, otherwise you just get quicklime... I did wonder whether it was Pozzolanic in its own right, but I suspect not.It has been a long time since I was involved in concrete, but did the use of ash create a lighter product?
It's also used to make Thermalite building blocks.I think it is a substitute for the clay minerals needed to go with the calcium carbonate in the kiln to produce Portland cement, otherwise you just get quicklime... I did wonder whether it was Pozzolanic in its own right, but I suspect not.
Those numbers seem crazy (I don’t doubt them though) - but some quick fag packet maths with an assumption of 1,500t product per train and 3 trains per week is over 65 years!
The coal rapid loader bunker has long gone, but just before where it was is a concrete pad that is probably being used ( was previously used to load pit waste that was used to construct the embankments of the Doncaster North Chord)Thought the loading facilities at Maltby has been levelled after the mine closed? Or are they using a concrete pad and a tele-loader?
Looking at the photo, surprised the wagons aren't covered....
Incidentally, DB Cargo running from Alexandra Dock to Portbury this week 2x per day, driver training?
The first of those was cancelled today, but hopefully some of the others run.And the return of 6Z61 is due monday.
Incidentally, DB Cargo running from Alexandra Dock to Portbury this week 2x per day, driver training?
It has been a long time since I was involved in concrete, but did the use of ash create a lighter product?
The fine fly ash particles settle between the coarser cement particles and the aggregate, thereby reducing the void content of the concrete. The fewer voids in the concrete, the greater its strength.
https://www.eppowerminerals.com/en/products/cementitious-materials/fly-ash
I think it is a substitute for the clay minerals needed to go with the calcium carbonate in the kiln to produce Portland cement, otherwise you just get quicklime... I did wonder whether it was Pozzolanic in its own right, but I suspect not.
Fly ash is the fine ash produced at coal-fired power plants that develops cementitious properties when mixed with cement and water ...Fly Ash is a pozzolan, meaning it is a siliceous and aluminous material that, in the presence of moisture, will combine with the lime liberated during the hydration of cement to form cementitious materials.
https://www.cemex.co.uk/products/cement/fly-ash
Many modern cements are produced with lower embodied carbon by incorporating materials such as fly ash, limestone, or GGBS (Ground Granulated Blastfurnace Slag). These blends reduce CO₂ emissions without compromising performance, making them a more sustainable choice for many applications. Check out our CEMII cement options.
https://www.breedongroup.com/products/products-gb/cement
Due to the slate having metamorphic equivalence to shale, it can be considered an alternative in cement production, as it has the potential to serve as a supplementary cementitious material
https://www.sciencedirect.com/science/article/abs/pii/S2352710224016127
Thinking back to my days, the ash was used instead of some of the aggregate. Health and safety, what with lifting all those concrete troughs and lidsI read somewhere that fly ash (aka pulverised fuel ash / PFA) was less dense than portland cement, but lower weight is not usually mentioned as a benefit of using PFA in cement. This might be because the fine particles of fly ash fill up void spaces in concrete better than normal cement, which would presumably balance out the overall density and weight of the concrete compared to using regular portland cement:
The low weight of PFA is more of a feature in the Thermalite blocks mentioned in another post, where the PFA is used as a lightweight aggregate (called "Lytag" apparently). PFA from the mound at Drax is railed down to Appleford in tank containers (and then sent by road to a factory in Newbury) for this purpose - https://www.forterra.co.uk/our-brands/thermalite/
From the Cemex website:
Looking at the Breedon website, the fly ash is used in their low-carbon "CEMII" cement:
This link is rather interesting - it discusses the materials handling for ash and slate waste at Hope cement works, and includes a YouTube video with a brief sequence of a class 20 with box wagons as they are unloaded: https://donvalleyeng.com/casestudies/arm-project/
On the topic of slate waste, this scientific paper on the use of slate waste in CEMII cement gives an example of "the replacement of 20 % of clinker with calcined slate waste."
RTT infers the new Mossend to Rotherham intermodal runs to Doncaster I Port after today
The first train (I believe) from Handsworth EMR to Liverpool EMR ran on Thursday, arriving in the early hours of Friday.