Aberthaw Cement Kiln

Aberthaw Cement Kiln
Site Location See Cement Kilns → page for a larger UK Wide map.
Waste Licence	BL3986ID
Operator	Tarmac
Parent Company	CRH plc
Clinker Capacity	0.5 Mt

Summary site information collated from a variety of sources.

Overview

WikiWaste has used the website Cement Plants and Kilns in Britain and Ireland extensively for the reference material for each individual cement kiln page. The detail on this reference website is extensive and as WikiWaste is focused upon the UK waste and resource market, only the key highlights are captured from this website (and company websites accordingly) to provide background and context. Aberthaw started manufacturing clinker in May 1914 (with only Rugby being older in the UK) and up to 2015 had produced 33 million tonnes of clinker through 6 rotary kilns over this period.

Ownership

• 1912 to 1983 Aberthaw and Bristol Channel Cement Co. Ltd
• 1983 to 2011 Blue Circle
• 2011 to 2013 Lafarge
• 2013 to 2015 Lafarge Tarmac
• 2015 to Present CRH plc (owners of Tarmac)

The Process at Aberthaw

The following summary diagram is from Tarmac's website:

How we make cement at Aberthaw - Schematic from Tarmac website

Raw Materials

The primary raw materials are Blue Lias limestone and clay from the adjacent quarry and Carboniferous Limestone mainly from Glamorgan.

Waste Used on Site

The Aberthaw site waste return to the EA for the most recent year of 2018 showed the following wastes used on site, all of which were used for the primary purpose of substituting fuel requirements in the plant:

Waste Class	Description	Tonnage Input
01 04 08	waste gravel and crushed rocks other than those mentioned in 01 04 07	0
02 02 02	animal-tissue waste	0
02 02 03	materials unsuitable for consumption or processing	0
06 02 01*	calcium hydroxide	0
10 01 02	coal fly ash	3,118
10 01 15	bottom ash, slag and boiler dust from co-incineration other than those mentioned in 10 01 14	0
10 02 13*	sludges and filter cakes from gas treatment containing dangerous substances	0
16 01 03	end-of-life tyres	6,826
16 08 04	spent fluid catalytic cracking catalysts (except 16 08 07)	0
19 01 13*	fly ash containing dangerous substances	0
19 02 08*	liquid combustible wastes containing dangerous substances	0
19 02 10	combustible wastes other than those mentioned in 19 02 08 and 19 02 09	0
19 08 05	sludges from treatment of urban waste water	0
19 08 13*	sludges containing dangerous substances from other treatment of industrial waste water	0
19 09 02	sludges from water clarification	0
19 12 01	paper and cardboard	6,900
19 12 04	plastic and rubber	0
19 12 10	combustible waste (refuse derived fuel)	2,408
19 12 11*	other wastes (including mixtures of materials) from mechanical treatment of waste containing dangerous substances	0
19 12 12	other wastes (including mixtures of materials) from mechanical treatment of wastes other than those mentioned in 19 12 11	0

The schematic below from the Tarmac website shows a summary of how materials are used on site:

Waste Derived Fuel schematic from Tarmac website

The PFA and Blast Furnace Slag shown in the diagram are not classified as waste by the producer, but as a feedstock for cement production and so tonnages are not reported to the EA.