Here at Tarmac we have been making the highest quality cements for over 100 years. And we put all of that experience and expertise into each of our Bulk cement products today. We’re proud to say that all of our Bulk Cements are manufactured to the European standard for cement, BS EN 197-1 which means you can be sure that they will perform in your mix design to specification. However, there’s so much more that goes into ensuring we create the best possible products for you, our customers.
Our Quality Promises
From quarry to lorry our products are tested at every stage of the manufacturing process and it’s done to the highest possible standard – our own. Our UKAS accredited National Laboratory (UKAS Reference No - 0751 - Testing-Single.pdf) provides the high level of technical backup and support that helps us maintain our high quality standards. Staffed by an experienced team of scientists and technologists, our ‘Natlab’ carries out physical and chemical tests on cement and products such as mortar and concrete, utilising state-of-the-art physical testing equipment and the latest analytical methods.
As well as our UKAS accredited National Laboratory each of our manufacturing plants has a lab on site, responsible for carrying out the rigorous and comprehensive testing schedules. Staffed by an experienced and technically minded team our plant labs monitor incoming materials constituting the raw mix such as quarried materials, alternative fuels and additions. They perform chemical and mineralogical analysis of in-process materials and clinker and conduct in-depth analysis and testing of the finalised products.
100% commitment to quality
We annually produce around 4 million tonnes of cement, which we test at 8 different stages throughout the production process, examining 17 different parameters including 1, 7 and 28 day strengths, initial set and colour.
Be a standard setting organisation
All of our bulk products are manufactured to the European Standard for cement, BS EN 197-1 which means you can be sure that they will perform to specification.
To be on top of our processes
As well as our UKAS accredited National Laboratory each of our manufacturing plants has a lab on site, responsible for carrying out the rigorous and comprehensive testing schedules.
Be open and straightforward
We know our tightly controlled processes, teams of experts and stringent testing plans deliver, that’s why we openly share our quality results with our customers through our C-Base system.
Have quality arrangements in place
Each of our bulk cement products has it’s own performance envelope developed from your requirements and expectations which to ensure quality throughout the year to ensure quality never waivers.
Have meetings of minds
As well as our rigorous testing schedule each month a small, dedicated team comes together at each of our cements plants to analyse product quality results, review customer feedback and develop new exciting products.
Cement test reports
Download weekly Cement Test Reports for Blue Circle cements and Certificates covering the last six months of production.
Flyash Test Reports
Test reports and Certificates of Conformity for ash sources can be downloaded from the link below.
Declarations of performance (DOP)
Declarations of Performance for Blue Circle cements and limes can be downloaded directly.
Summary of declared values
Declared values for Blue Circle cements and limes can be downloaded directly.
BS 8500 requirements for standardised
prescribed and designated concrete
Guidance for the use of Blue Circle bulk cements in Standardised Prescribed Concrete and Designated Concrete to BS 8500.