limestone – Concrete Products

LafargeHolcim, Lafarge Canada spotlight low-carbon mix designs

December 14, 2021December 14, 2021 Concrete News

Traditionally carbon intensive, the cement industry is seeing a significant change in how specifiers, architects and customers are looking at building materials through the lens of environmental impact. In response to demand for products with a lower carbon footprint, Lafarge and LafargeHolcim concrete operations in Canada and the United States have partnered to raise awareness that environmentally-friendly, cement-based products are…

Low carbon LC3 binder steers Sika’s next admixture chapter

June 9, 2021June 9, 2021 Concrete News

The Swiss parent company of New Jersey-based Sika Corp. will tailor a new family of concrete admixtures and cement additives around the chemistry and behavior of an emerging binder known as LC3, or Limestone Calcined Clay Cement. Through work with Sika AG and peers, Swiss Federal Institute of Technology officials view the material as a means of carbon footprint reduction…

Lehigh Cement sets new watermark for clinker + limestone + ash blends

March 18, 2021March 25, 2021 Concrete News

Lehigh Hanson Inc. is extending its recently launched, carbon-wise EcoCem portland-limestone cement series with EcoCem PLUS, milled at the Lehigh Cement Edmonton Plant and Terminal and debuting in Alberta, Saskatchewan and Manitoba. Finished by inter-grinding cement clinker, fly ash, limestone and gypsum, the material outperforms traditional CSA Group-grade (High Sulphate Limestone blend) HSLb-20F powder in resisting sulphate attack, common in…

Mineralized aggregate developer Blue Planet secures $10M commitment

September 22, 2020September 23, 2020 Concrete News

Sources: Blue Planet Systems Corp., Los Gatos, Calif.; CP staff A $10 million funding round positions Blue Planet to advance a carbon capture and utilization system netting concrete-grade synthetic limestone. The Silicon Valley company is approaching commercialization of a process that converts diluted carbon dioxide from fossil fuel-powered electricity generating stations, cement or steel mills, and petroleum refineries to carbonate…

Volvo programs autonomous dump truck as ‘limestone transport solution’

January 20, 2019 Concrete News

Volvo Trucks North America parent, Volvo Truck Corp. of Sweden, recently entered an agreement to equip Norway limestone producer Brønnøy Kalk AS with six dump body-bearing FH cabover models programmed for driverless operation. Following individual vehicle demonstrations last year, the fleet will be deployed in 2019 to haul rock from underground mine to crusher—navigating a three-mile tunnel and outdoor road route at a wheel loader operator’s direction.

Volvo, limestone producer test autonomous on/off-highway truck

November 28, 2018 Concrete News

Sources: Volvo Truck Corp., Goteborg, Sweden; CP staff

Volvo Trucks North America’s European parent has entered an agreement to equip Norway limestone producer Brønnøy Kalk AS with six dump body-bearing Volvo FH cabover models programmed for driverless operation. Following individual vehicle demonstrations this year, the fleet will be deployed in 2019 to haul rock from underground mine to crusher, navigating a three-mile route of tunnels and outdoor roads at the direction of a wheel loader operator.

Lehigh earmarks $600M for Indiana mill modernization, rail upgrade

July 13, 2018 Concrete News

Sources: Lehigh Hanson Inc., Irving, Texas; CP staff

Lehigh Hanson’s most ambitious undertaking to date entails a four-year, $600 million-plus modernization and expansion of the Lehigh Cement Co. Mitchell plant, aimed at increasing capacity from present 662,038 metric-ton-per-year level; lowering energy usage and emissions per ton of finished cement; and, continuing to leverage the southern Indiana site’s limestone riches.

ASTM C09 standard covers calcium carbonate, mineral fillers

October 6, 2016 Concrete News

Sources: ASTM International, West Conshohocken, Pa.; CP staff

ASTM Committee C09 on Concrete and Concrete Aggregates’ latest standard, C1797, Specification for Ground Calcium Carbonate and Aggregate Mineral Fillers for Use in Hydraulic Cement Concrete, addresses limestone and similar materials exhibiting potential to improve mix characteristics and hardened structure performance.

McInnis Cement sites first U.S. terminal at Port of Providence

August 9, 2016 Concrete News

Sources: McInnis Cement, Montreal; CP staff

Rhode Island and Providence officials joined McInnis Cement executives for an early-August groundbreaking at the deep-water Port of Providence, where the producer is building a 30,000-plus ton capacity terminal linked to its Port-Daniel-Gascons mill under construction in eastern Quebec.

Artistic Paver builds Golden State footprint, polished stone program

August 8, 2016 Concrete News

North Miami Beach-based Artistic Paver Mfg. has shored up its West Coast presence, opening a southern California distribution center for Steplock and Roadlock series paving units from the company’s Case Grande, Ariz., plant. Offerings will include the latest addition to the Steplock West Coast line, Limestonelock, promoted as a “sophisticated paver with the smoothness found in limestone,” available in ‘polished’ or ‘polished and antiqued’ finishes’ plus Almond, Holly Brown or Linen Grey colors.