Displaying items by tag: paving slabs

Czech Republic: Austria-based Wienerberger has successfully acquired concrete paving products company Betonarna Lesonice for an undisclosed sum. Betonarna Lesonice’s auxiliary product lines include acoustic insulation.

Wienerberger CEO Heimo Scheuch said “The acquisition of Betonarna Lesonice puts us in an excellent position to meet the demand for concrete paving solutions in infrastructure and residential construction in the Czech Republic. While boosting local value-creation, this acquisition also aligns with our sustainability goals by reducing transport distances to cut emissions. It further supports the circular economy, as the solutions incorporate a high percentage of recycled materials. All these factors are integral to our value-accretive growth strategy, which has been furthered by this step.”

France: Circular aggregates producer Néolithe has partnered with Hoffmann Green Cement Technologies and Groupe GCC to produce a fuel loading slab for a temporary bus depot in Marseille. The slab will be made of Hoffmann Green Cement Technologies’ H-UKR clinker-free cement and Néolithe’s mixed circular materials-based Anthropocite aggregates. The resulting slab will serve as a test for the use of H-UKR concrete in future Groupe GCC projects.

The partners say that a mix of H-UKR cement with 20% Anthropocite reduces CO₂ emissions by 63% compared to CEM II/A cement-based concrete produced using conventional aggregates, to 62kg CO₂eq/m³.

Groupe GCC executive vice-president Patrick Dubourg said "This project perfectly illustrates one of GCC's key priorities: implementing sustainable solutions. The work we've been doing for several years with Hoffmann Green Cement Technologies enables us to take tangible action in this direction, and the partnership with Néolithe enables us to take a further step in the direction of decarbonisation, an essential issue for construction.”

Laurence Hemerit, infrastructure director at customer Marseille Metropolitan Transport Authority (RTM), said "RTM found GCC's proposal very interesting in that it enabled us to carry out a large-scale, long-term comparative test to assess the qualities of low-carbon concrete. Our temporary bus storage site was therefore the ideal candidate for this experiment."

Romania: Concrete paving slab producer Symmetrica's sales grew by 40% to €30.2m in the first half of 2024, driven by strong demand for road and water infrastructure projects. Sales volumes also grew, by 30%, to 2.7Mm². The producer noted high costs, which it partly offset by raising its prices. It also faced collection issues and a decline in residential demand.

SeeNews has reported that Symmetrica is currently building a new €48m concrete paving slab plant Bucharest. When commissioned in mid-late 2024, it will be the largest plant of its kind in the region.

India: A team at SRM Institute of Science and Technology has patented a new concrete paving block produced using fibres from waste printed circuit board (WPCB). The refuse-derived material will replace some sand and clay in the concrete mix. SRM Institute of Science and Technology said that India generates 2Mt/yr of electronic waste (e-waste), and additionally imports this type of waste from other countries. Besides being non-biodegradable, WPCB is contaminated with colouring chemicals.

The developers said "The steadily rising volume of electronic waste poses a serious hazard to human health and the environment."

Bolivia: Construction of an upcoming 237,000m³/yr precast concrete plant in Uru Uru, Cercado Province, commenced on 13 December 2022. The plant will cost US$2.22m and have the capacity to produce 23,000 concrete paving blocks per day.

China: A team at Southeast University has developed an alternative concrete that contains 8% cement. It uses coral reef limestone fragments and biodebris with an upper particle size of 53mm as fine aggregate. The researchers concluded that the material proved suitable for use in precast concrete paving slab production.

India: Three new Indian concrete companies have separately secured agreements for the use of Finland-based Betolar’s Geoprime alkali-activated slag and fly ash additive. Reuters News has reported that the companies are Balaiji Cement Products, Shiv Tiles and SNEH Precast. Engineering company Godrej & Boyce has also signed a letter of intent with the supplier for pilot production of concrete blocks, paving slabs and other elements.

Betolar expects producers to achieve global concrete production volumes of 250,000t/yr of concrete containing Geoprime by 2023.