Displaying items by tag: concrete

Philippines: Aboitiz Group food and agriculture subsidiary Pilmico Foods says that it has developed a waste ash-based concrete mix that contains 20% less cement than its previous mix and that “can be used for all of the company’s construction needs.” The Manila Bulletin newspaper has reported that the ash is sourced from burnt rice husks, a fuel source for Pilmico’s food production and itself a by-product of its operations. Central Maintenance Department mechanical supervisor Michael Cayabyab said, “When we started using the biomass boiler almost two years ago, we saw process improvements and reduced costs. But in Pilmico, we know that the challenge does not stop there." The company has yet to commercialise the concrete, however it hopes to inspire others with its “demonstration of the circular economy demolishing the divide between industries.”

Mexico: Cemex says that 70,000t of its concrete has been used in the construction of Park Garage, a 10,000 vehicle-capacity multi-storey car park in Heroica Veracruz, Veracruz State. The company used a 500m³/day Vince Hagan batching plant and 12 mixing trucks to distribute concrete throughout the complex. Mexico regional president Ricardo Naya said, “We supplied specialised high-resistance concrete to counteract the severe salinity conditions that prevail due to the edifice’s proximity to the sea. Park Garage is yet another example of our ability to offer the highest quality products and services designed to meet our customers’ most demanding requirements."

Colombia: Cementos Argos’ says its sales volumes in the first half of 2020 were affected by coronavirus-related lockdown measures in Colombia and some countries of Central America and the Caribbean. These markets have since recovered gradually as quarantine measures were eased. Its revenue fell by 4.6% year-on-year to US$1.14bn in the first half of 2020 from 1.20bn in the same period in 2019. Cement and ready-mixed concrete (RMC) sales volumes declined by 15% to 6.79Mt and 19.9% to 4.05Mm³ respectively. Earnings before interest, taxation, depreciation and amortisation (EBITDA) dropped by 9.5% to US$200m.

“These results were driven mainly by the firm commitment of our employees in implementing the health and safety protocols and the saving initiatives contained within RESET (restart safe and healthy), together with the better-than-expected market dynamics particularly in the US and some of our markets in the Caribbean,” said Juan Esteban Calle, the group’s chief executive officer (CEO).

By region the group reported growing RMC sales and earnings, both on an adjusted basis, in the US in the second quarter of 2020. Cement volumes fell in the country, mainly due to lower cement sales volumes in the Northeast region, due to lockdown measures and reduced demand from the wholesale segment. In Colombia a complete national lockdown from the start of the second quarter reduced sales significantly. A mixed picture was presented in the Caribbean and Central America due to differences in government lockdown policy although overall sales and earnings were down.

Japan: A proposal by Mitsubishi Group on researching CO₂ injection into concrete has been approved for a grant from the New Energy and Industrial Technology Development Organisation (NEDO). This joint project between Mitsubishi Group, Kajima Corporation, and Chugoku Electric Power aims to improve the existing technology so that it can be applied to the reinforced and cast-in-place concretes used in building construction. At present the group said that current carbon-recycling techniques are mainly used for unreinforced concretes, such as concrete blocks.

Mitsubishi Group has already been involved in the development of concrete projects that take advantage of carbon-recycling, including a zero-emission concrete called CO₂-SUICOM. It added that carbon capture, utilisation and storage (CCUS) technologies, including carbon-recycling, are an excellent opportunity for the company to use its strengths between industries that both emit and use CO₂.

Italy: Italcementi and Calcestruzzi have supplied specialists and products, including 67,000m³ of concrete, for the Genoa-San Giorgio Bridge. The new structure has been built to replace the Morandi Bridge that collapsed in mid-2018. Products from the integrated Calusco d'Adda cement plant, the Novi Ligure grinding plant and Calcestruzzi’s concrete plants in Genoa supported the project.

UK: Breedon Group says it has completed the acquisition of selected assets from Cemex. Following instructions from the Competition and Markets Authority (CMA) the assets will be operated as Pinnacle Construction Materials, a newly-created separate business led by its own management team and operating from its own offices. Pinnacle will offer a range of heavy building materials, including aggregates, asphalt, ready-mixed concrete, concrete products and cement, together with contracting services, from approximately 100 locations in England, Wales and Scotland.

The CMA is still investigating the acquisition and plans to announce its initial conclusions in late August 2020. Breedon Group expects to integrate Pinnacle into its UK business at a later date once this process is fully completed. Cemex agreed to sell Breedon Group some of its UK assets in January 2020. This included 49 ready-mix plants, 28 aggregate quarries and a cement terminal for Euro211m.

US: Switzerland-based LafargeHolcim has announced the start of sales via its local subsidiaries of its ECOPact range of 30 - 100% reduced CO₂ concretes. Chief executive officer (CEO) Jan Jenisch said, “I am proud to introduce ECOPact, the industry’s broadest range of green concrete for high-performing, sustainable and circular construction.”

The company says that, where regulatory conditions allow, ECOPact products integrate upcycled construction and demolition materials, further closing the resource loop. ECOPact concretes will enter the Canadian, Latin American and UK markets in mid-late 2020. “With the roll-out of this Green Concrete, we are accelerating the transition to more sustainable building materials for greener construction,” added Jenisch.

Mexico: Cement has announced the launch of a range of carbon neutral concretes called Vertua. By offsetting, Cemex has eliminated Vertua’s remaining carbon footprint following a 70% reduction in embodied emissions compared to Ordinary Portland Cement (OPC) through use of a geopolymer cement mixture. The concretes will become available on different markets globally in 2020 and 2021.

Mexico: Cemex says that it is involved in a working group “focussed on the application of FastCarb aggregates to concrete production” as part of its efforts towards net-zero CO₂ concrete production. FastCarb, administrated by the US-based International Research and Exchanges Board, is a project aimed at the production of aggregates from recycled concrete containing trapped carbon dioxide (CO₂) requisitioned from industrial exhaust streams.

Cemex said, “After completing the first phase of the experimental approach at the laboratory level with promising preliminary results, the project is now entering the second phase seeking to tackle the industrial approach. In this industrial approach phase, Cemex was recently assigned to evaluate the physical and mechanical properties of the carbonated recycled concrete aggregates when used in ready-mix concrete in the laboratory facilities at the Cemex France National Technical Centre.”

Pakistan: The upcoming Diamer Basha Dam and 21MW Tangir Hydropower Project will use concrete made from Ordinary Portland Cement mixed with fly ash and other additives. The Frontier Works Organisation said, “This reduces thermal loads on the dam and reduces chances of thermal cracking,” according to China Daily News. The Chinese-backed project is scheduled for completion in 2028.