Displaying items by tag: concrete

France: Fives Group has tested using its FCB Rhodax cone crusher to process concrete wastes resulting from the demolition and deconstruction industry. During an internal innovation competition, the crusher was used to sort hydrated cement paste from the aggregates and sand. The development will enable cement producers to reuse the paste as a cement additive. Ready mixed concrete producers will be able to make new concrete using the recycled aggregates and sand allowing for a reduction in CO₂ emissions. Fives hopes to turn demolition concrete waste into a valuable commodity.

Colombia: Cementos Argos’ revenue grew by 14% year-on-year to US$657m in the first quarter of 2019 from US$576m in the same period in 2018. Its operating earnings before interest, taxation, depreciation and amortisation (EBITDA) rose by 3.7% to US$94m from US$90.7m. Its cement sales volumes increased by 4.7% to 3.86Mt from 3.69Mt. Ready-mixed concrete sales volumes increased by 2.3% to 2.5Mm³. Revenue grew fastest in the US followed by Colombia but it decreased in the Caribbean and Central America.

Germany: Cemex has signed the final agreement to sell its aggregates and ready-mix assets in the North and North-West regions of Germany to GP Günter Papenburg AG for around Euro87m. The divestment is expected to close during the second quarter of 2019.

The assets in Germany being divested consist of four aggregates quarries and four ready-mix facilities in North Germany, and nine aggregates quarries and 14 ready-mix facilities in North-West Germany. The proceeds expected to be obtained from this divestment will be used mainly for debt reduction and for general corporate purposes.

Germany: Dyckerhoff is supplying 12,000t of CEM III/A 32.5 N-LH cement to Frankfurt Airport for the production of underwater concrete. The airport is building a new terminal and the construction pit for the floor slab is deeper than the groundwater level, hence the floor slab must be concreted underwater.

The construction pit has a size of almost 66,000m² with excavation carried out in dry conditions to a depth of 5.5m to the groundwater table. Then a further 8 -11m was excavated in wet conditions using industrial divers. The excavation pit has been prepared in sections and then concreted by the divers resulting in short sections. The quantities of cement to be delivered by Dyckerhoff also fluctuate considerably, with sometimes 20 silo trucks/day leaving the Dyckerhoff plant in Wiesbaden. Deliveries started in March 2019.

Around 40,000m³ of concrete has been produced by Sehring Beton, using a mobile mixing plant directly on site. The construction work is being carried out by the Arge Ingenieurbau Baugrube T3, which consists of the two companies Adam Hörnig Bau and Bickhardt Bau.

US: Martin Marietta has benefited from aggregate sales volume growth in the first quarter of 2019. Its revenue grew by 17% year-on-year to US$939m from US$802m. Its earnings before interest, taxation, depreciation and amortisation (EBITDA) rose by 28% to US$159m from US$124m. However, the gross profit on its cement business was down and both sales and profit was down for ready-mixed concrete (RMX). Despite this the company said that its cement shipments and pricing increased 7.3% due to demand in Texas, a new Houston-area sales yard and an enhanced product line.

US: Illinois State University has been awarded a US$15,000 grant by the Environmental Protection Agency (EPA) to research the use of recycled glass as a substitute for Ordinary Portland Cement and fly ash in controlled low-strength material (CLSM). CLSM, also called flowable fill, is a cement-based construction material commonly used for backfilling trenches or other excavations, as well as soil-stabilisation. It can be produced at any ready-mix concrete plant by mixing cement, fly ash, sand and water in the correct proportions.

Project lead Pranshoo Solanki said that preliminary results are promising, and show that required flow and strength can be met by replacing cement and fly ash with recycled glass powder.

The EPA grant is for phase one of the recycled glass project for research at the laboratory scale. Funding for phase two will then be sought to test the product in real-world trials.

Poland: Data from the Cement Producers Association (SPC) shows that cement production grew by 12% year-on-year to 18.9Mt in 2019. Concrete production rose by 6.8% to 25.3Mm³. This was attributed to a growing construction sector, according to the Polish News Bulletin. Both cement and concrete production is expected to continue growing in 2019 to 19Mt and 26.2Mm³ respectively.

China: Germany’s Wacker Group has opened a new competence centre for cement and concrete applications in Shanghai. The laboratory will develop silicone based products and solutions which are able to improve the performance of cement and concrete and to make these materials more sustainable. Special focus is on silicone admixtures and performance enhancers.

“As a regional innovation platform focusing on cement and concrete, the new lab will cooperate with leading Chinese universities, research institutions and the industry. Its goal is to develop innovative products and solutions which support the sustainable development of the Chinese construction materials industry,” said Paul Lindblad, president of Wacker Greater China.

At its new competence centre in Shanghai, Wacker will be able to investigate how silicone chemistry can protect cement and concrete against environmental influences and, at the same time, improve the durability of these materials.

Ireland: Quinn Industrial’s turnover rose by 15% year-on-year to Euro240m in 2018 from Euro209m in 2017. Its earnings before interest, taxation, depreciation and amortisation (EBITDA) grew by 10% to Euro26.4m from Euro23.9m

“Our Building Products division is currently planning to enter the ready-mix concrete market in the greater Dublin area to meet rising demand from the expanding construction and housing markets,” said chief executive officer (CEO) Liam McCaffrey. He added that, despite Brexit, the business is focused on growing in both the UK and the Republic of Ireland.

Quinn Building Products continued to benefit from the on-going building recovery in the Republic of Ireland as well continued strong exports to the UK where the introduction of its new plastic bagged cement product at the start of 2018 allowed it to expand its market presence.

Quinn Industrial is also considering investment options, including an initial public offering (IPC) or a cash injection from private equity, according to the Irish Independent newspaper. However, the company has not commented on the issue.

UK: The Global Cement and Concrete Association (GCCA) is formally joining the Concrete Sustainability Council (CSC). By doing so it is adding its support to the only world-wide industry specific system that certifies the sustainability performance of concrete plants and their supply chain across the globe. Developed in conjunction with social and environmental stakeholders, the CSC is the industry recognised authentication system, with more than 160 plants certified to its standards across eight different countries.

“We are delighted at the decision of the GCCA to champion the many sustainability benefits of concrete by putting their global reach behind the CSC. We look forward to reinforcing and accelerating our work with their support,” said CSC chairman, Christian Artelt.

Clients, developers and contractors can be assured of socially and environmentally responsible practices through the concrete supply chain when specifying CSC certified concrete. Internationally recognised sustainable project assessment methods such as BREEAM and DGNB credit design teams and their projects with points when CSC certified concrete is specified and procured.