Displaying items by tag: concrete

US: Lehigh Hanson has signed a collaboration agreement with materials technology company Fortera. Under the agreement, the companies will establish a carbon capture and storage (CCS) system at the producer’s 0.8Mt/yr integrated Redding Cement plant in Shasta district, California. The system will produce a cementitious material for use in concrete production. The material will be the first of its kind to be produced at a cement plant.

"This collaboration with Lehigh Hanson will prove the commercial scalability, the quality of the final product, and the competitive economics of the Fortera process," said Ryan Gilliam, chief executive officer and co-founder of Fortera. He added that the Fortera process (ReCarb) has been designed to utilise the existing cement infrastructure, from the quarry to the kiln, but with less CO₂ emissions, lower energy, and lower processing temperatures, leading to 60% lower CO₂ emissions per tonne of product.

Switzerland: Sika has developed ReCO2ver, a process which produces limestone, sand and gravel from the combination of concrete and CO₂ with an additive developed by the supplier. The process enables demolition companies to completely recycle used concrete, while storing captured CO₂ at a rate of 60kg/t of crushed concrete. The materials produced can be used as aggregates to make concrete of comparable strength to an all-new product.

Chief executive officer Paul Schuler said, "The five largest European Union countries alone generate roughly 300Mt/yr of old concrete. With complete recycling of these materials, up to 15Mt/yr of CO₂ emissions can be stored. We are convinced that our new process has the potential to benefit both our customers and the environment."

Germany: Former HeidelbergCement technical director Rainer Nobis has published a book entitled Illustrated History of Cement and Concrete. The over 300-page volume traces the development of cement and concrete from prehistory to the present day, exploring the question of how cement and concrete came to be so closely intertwined with our prosperity, way of life and mobility. It is both a technical history and a story of the people who contributed to the development and application of cement and concrete. Nobis described the book as of interest both to cement experts and laypeople. More than 700 pictures accompany the text. Its first edition is available in English and German versions.

The Illustrated History of Cement and Concrete is currently available prior to its launch on online retailers in mid-March 2021.

Spain: Cemex is supplying cement to the site of the upcoming Santolea Canyon dam in Aragon. The 59m-high structure will hold a 105hm³ reservoir, which will provide water to 2000 surrounding farms. Concrete pouring began at the site in March 2020 and is scheduled to reach completion in mid-2021.

Europe, the Middle East, Africa, and Asia regional president Sergio Menendez said, "We are very proud of our participation in the construction of the Santolea Canyon dam, a key project requiring materials and solutions of the highest technical and environmental specifications. The new Santolea dam will greatly contribute to support sustainable growth in the region”.

Saudi Arabia: Saudi Readymix has received its certification from the American Concrete Institute (ACI) to provide ACI certified courses. The courses form a minimum qualification for concrete industry workers.

Saudi Readymix’s Commercial and Technical Director, Chris Leptokaridis said, “We are extremely proud of our research and development facility, it’s important role as a company knowledge hub and testing ground of all our future materials. It is the most advanced and well-equipped research facility of any readymix producer in the Middle East.”

The concrete producer will start accepting candidates for its courses in March 2021. It will offer ACI trainings courses in concrete field testing and concrete strength testing.

Europe: Cemex commissioned seven new bolt-on investments across Europe in January 2021. The company says that all of the investments are aligned to its key priorities of climate action, sustainable construction and earnings before interest, taxes, depreciation, and amortisation (EBITDA) growth. They include advances in fossil fuel reduction, lower CO₂ footprint products, circular economy investments and products that demonstrate life cycle CO₂ and energy consumption advantages for buildings. It made various changes at its cement plants, for example the installation of a new alternative fuel (AF) system in the Czech Republic. In France and the UK, it made circular economy and recycling improvements, and shifted to lower-CO₂ cement production in Croatia and lightweight concrete production in Spain. Additionally, it made efficiency upgrades to sites in Spain and the UK.

Europe, Middle East and Africa regional president Sergio Menendez said, “We have made a strong start to our 2021 ambitions to both grow our business and improve our climate impact. In 2020, we achieved our ambition of a 35% reduction in our CO₂ emissions compared to our 1990 baseline in Europe. We are also the first company in our sector to align our Europe operations to the EU aspiration to reduce CO₂ emissions by at least 55% by 2030. These investments represent further advances towards this 2030 target, as well as to deliver net zero CO₂ concrete globally by 2050.”

Spain: Cementos La Cruz has partnered with other building materials, construction and waste management companies and the Murcia Technological Centre for Construction to support a study by the Polytechnic University of Cartagena (UPCT). The Europa Press newspaper has reported that the research aims to develop geopolymeric concretes from industrial and urban waste, without the use of cement. The study is 80% financed by the European Regional Development Fund (ERDF).

UPCT science and advanced construction technology research group coordinator Carlos Parra said, “Stopping the use of concrete is not the solution, as it is a relatively accessible material that allows access to housing and multiple services for millions of people around the world and is also a material with high resilience against natural catastrophes such as floods, hurricanes and resistant to the passage of time.”

US: Martin Marietta’s total revenue remained stable at US$4.73bn in 2020. Its adjusted earnings before interest, taxation, depreciation and amortisation (EBITDA) rose by 11% year-on-year to US$1.39bn from US$1.25bn in 2019. Cement shipments rose by 11.7% year-on-year to 1.1Mt in fourth-quarter of 2020 due to strong demand in Texas.

“As we move forward, we believe underlying demand fundamentals will reset, establishing 2021 as the year during which the nation regains its economic footing,” said Ward Nye, the chairman and chief executive officer (CEO) of Martin Marietta. He added, “We anticipate single-family housing growth, expanded infrastructure investment and notable heavy industrial projects of scale will support the company’s near-term shipment levels. We expect these demand drivers, combined with the ancillary construction necessary for housing community buildouts and the potential increased infrastructure investment from a comprehensive Federal surface transportation package, should provide for multi-year growth in product demand,”

India: ACC’s net sales fell by 12% year-on-year to US$1.85bn in 2020 from US$2.11bn in 2019. Its earnings before interest, taxation, depreciation and amortisation (EBITDA) dropped by 3% to US$341m from US$332m. Cement sales volumes decreased by 12% to 25.5Mt and ready-mixed concrete sales volumes by 36% to 2.3Mm³. The subsidiary of Switzerland-based LafargeHolcim said that its cost efficiency program and working capital optimisation helped it to grow earnings and profits in 2020 despite the coronavirus pandemic.

US: Cemex USA has acquired Beck Readymix Concrete. The ready-mix producer operates three concrete plants in San Antonio, Texas and an additional portable plant.

Texas Regional President Scott Ducoff said, “Texas is experiencing explosive growth and Cemex has repeatedly shown it is ready to make moves to help fuel it. By acquiring these facilities, Cemex will be able to deliver our high-quality products that many Texans are already familiar with to satisfy the high demand of customers of one of the state’s most dynamic markets. We welcome our new employees and look forward to a smooth transition for them.”