Displaying items by tag: CEM II

UK: First Graphene and Breedon Group have entered into a development and commercialisation agreement. Together, the companies aim to enhance Breedon Cement’s CEM II Portland limestone cement (PLC) through the use of First Graphene’s graphene enhanced grinding aids and cement admixtures. Breedon will provide increased access to cement production lines in order to optimise the understanding of the processing environment and operating conditions.

Breedon Group’s Hope cement plant in Derbyshire previously conducted a 24-hour graphene-enhanced cement production trial on 28 June 2023.

France: Eqiom has launched its new reduced-CO₂ CEM II/C cement range on the French market. The range includes the Portland limestone, slag and clinker filler CEM II/CM (SL) 42.5 N cement produced at its La Rochelle cement plant. The cement is the first product to obtain NF certification from the Scientific and Technical Center for Building (CSTB) under its new standard designation EN 195-5. The producer says that in mid-2022 EN 197-5 will assimilate into the EN 206/CN standard for use in structural concrete.

Eqiom said that the range will offer its customers a more sustainable alternative to its other NF EN 197-1 certified compositions. La Rochelle cement plant operations manager Ahmed Mansouri said “We are proud of this result, which is the result of close collaboration between the different Eqiom teams. This commitment has made it possible to provide our customers with a solution with low CO₂ emissions while guaranteeing sufficient performance so as not to impact practices on the construction sites.”

Poland: The Building Research Institute has issued environmental product declarations (EPDs) for all six cement types produced at its Chełm and Rudniki cement plants and Gdynia grinding plant. The products in question were two CEM I cements, two CEM II Portland fly ash cements, another CEM II cement and a CEM III slag cement. Cemex Poland additionally obtained EPD certification for its Vertua Classic and Vertua Plus concrete products.

Materials director Michał Grys said “For us, product certification is another important step towards sustainable construction and a sustainable future. EPD declarations provide our clients with additional confirmation of the properties of products offered by Cemex Poland. They also improve their chances of obtaining LEED or BREEAM certificates for their investments.”

Germany: Master Builders Solutions has announced the addition of a new range of admixtures consisting of MasterEase and Master X-Seed to its admixtures portfolio. The company developed MasterEase and Master X-Seed to best enable European cement companies to produce cement of the EU’s new CEM II/C-M and CEM VI Portland-composite cements. Master Builders Solutions hopes that the new products will drive the construction industry’s transition to low-clinker cements and CO2-optimised concrete.

Parent company MBCC Group’s European president Christian Geierhaas said “Providing sustainable solutions is a key factor of Master Builders Solutions’ portfolio and overall strategy. Strong partnerships are essential and support and accelerate the development of significant innovations. We work with major players to continuously develop efficient admixtures to add value to our customers and achieve a long-term sustainable positive effect on the construction industry.” He added “In addition to the usual performance criteria, such as fluidity and compressive strength, our new solutions for our ready-mix customers are characterised by their outstanding robustness. Our admixtures provide an important differentiator by guaranteeing consistently high quality concrete, even upon variation of the cement type and fluctuation of the raw materials used to produce these new, more sustainable cements.”

EU: Cembureau has responded to the European standardisation organisation Cenelec’s CEN/TC 350 ‘sustainability of construction works’ rules by amending its European Environmental Product Declarations (EPDs) for CEM I, CEM II and CEM III, corresponding to Portland cement, Portland-composite cement and blast furnace cement respectively. It says the update brings the three main cement types into ‘full alignment with the EU Commission strategy for a sustainable built environment.’

UK: Aggregate Industries has launched its Lafarge Endure SR, a CEM II blended cement product that uses fly ash. It says that the product has a lower embodied CO₂, has improved plastic and hardened properties when used in concrete and has enhanced suitability for all ground types. Lafarge Endure SR is resistant to sulphates, allowing contractors and suppliers to scope a wider variety of projects. It also uses 10% less water than CEM I products to reach a workable consistency and offers improved pumpability and mixing efficiency.

“As its name suggests, Lafarge Endure SR is designed to dramatically increase the longevity of the concrete it forms a part of. It is a great solution for contractors that want to reduce the environmental impact of their build while simultaneously improving its life span,” said Steve Curley, Commercial Director at Aggregate Industries.