Displaying items by tag: US

US: Hawaiian Cement has announced the relocation of its Kahului Harbour cement terminal to an adjacent facility, previously occupied by a sugar company. The Maui News newspaper has reported the reason for the relocation as a disruption caused by operations at the terminal to a neighbouring company’s unloading operations, which caused “a significant constraint to operations and safety at Pier 2.” The new terminal, adjoining Pier 3, will have two cement silos with a joint capacity of 6000t, up by 88% from 3200t. Hawaiian Cement says that this will enable it to meet 100% of demand on the island of Maui.

US: Bulk materials handling specialist Conveyor Components has announced the launch of the Tripper Position Switch (TPS), a control unit consisting of two SP/DT micro switches rated for 20A at 120V, 240V or 480V. The unit indicates when the tripper of a shuttle conveyor is located on a multiple discharge point and will activate the dumper when signalled. Conveyor Components says that the device is housed in a “cast aluminium enclosure rated for NEMA 4 weather-proof or NEMA 7/9 explosion proof.”

Switzerland: LafargeHolcim has announced its participation in a project aimed at increasing the height of wind turbine towers by producing larger bases on-site using 3D concrete printing technology. LafargeHolcim will supply concrete for use with Denmark-based COBOD’s 3D printing technology, while US-based GE Renewable Energy backs the project. The method enables bases to exceed the 4.5m maximum diameter necessitated by road transportation. This increases the maximum height of turbine towers by 100% to 200m from 100m, which in turn raises power generation by 33% to 20.2GWh/yr from 15.1GWh/yr.

LafargeHolcim research and development head Edelio Bermejo said, “Concrete 3D printing is a very promising technology for us, as its incredible design flexibility expands the realm of construction possibilities. Being both a user and promoter of clean energy, we are delighted to be putting our material and design expertise to work in this ground-breaking project, enabling cost efficient construction of tall wind turbine towers and accelerating access to renewable energy”

US: CalPortland has announced the launch of Advancement, a product line of cements containing sustainable materials and produced using renewable processes. These include the replacement of 15% of the Ordinary Portland Cement (OPC) clinker with blended limestone. The company currently offers Advancement Light for aesthetic design and Advancement High Sulphate for general use concrete applications and when high sulphate resistance is required, both of which have 10% lower embodied carbon than OPC. More products are planned to follow.

CalPortland president and chief executive officer (CEO) Allen Hamblen said, “Advancement is a line of products that can be combined with other concrete carbon reduction technologies to further enhance performance and increasingly reduce the embodied carbon of concrete.”

US: Solidia Technologies has filed a patent for a new hydraulic cement consisting of Ordinary Portland Cement (OPC) and other supplementary cementitious materials (SCM) including lime, alkali hydroxides, clay minerals and over 10% synthetic pozzolan.

Solidia Technologies said, “In order to reduce global CO₂ emissions it is necessary to adopt new approaches to create a new generation of hydraulic cements. The most efficient cement kiln can produce OPC clinker with an associated emission of 816 kg of CO₂/t. Blending the ground cement clinker with SCM, which have low or zero associated production CO2 emissions, reduces the total embodied CO₂ of the final product. Using a cement with the lowest possible clinker factor for a given application is the most common industry approach to reducing the CO₂ footprint of concrete.”

US: Germany’s Beumer Group has appointed Joseph Dzierzawski as the president and chief executive officer (CEO) of Beumer Corporation, its US subsidiary based in Somerset, New Jersey. He has been in post since April 2020. He is responsible for the Conveying & Loading Systems, Palletizing and Packaging Technology, and Sortation and Distribution Systems business lines in the North American market.

Dzierzawski holds a degree in metallurgical engineering from the University of Michigan. Later he attended executive management programs at the University of Michigan School of Business and the INSEAD business school in Fontainebleau, France. He joins Beumer from Hatch Metals & Minerals group where he worked as Global Director, Technology & Business Development. Prior to this he worked at SMS, where he held a series of positions, eventually serving as president and CEO for SMS USA and Chief Technology Officer for SMS Group.

US: A lawsuit raised by the US Equal Employment Opportunity Commission (EEOC) against CCC Group alleges that black construction workers were subject to racial discrimination and harassment during the construction company’s work on an upgrade at the Lafarge Ravena cement plant in 2016. The EEOC says that the workers were the target of racial language, were threatened and made to carry out more dangerous and physically taxing tasks. It added that it only took legal action after first attempting to reach a pre-litigation settlement through the agency’s conciliation process.

CCC Group says it investigated the claims from one former employee in 2017 about ‘inappropriate comments’ after it was reported to the EEOC. However, it says that the complaint was never reported internally and that the EEOC refused to share information about the allegations. Subsequently, it was unable to determine what happened. The construction company only became aware of the other allegations when the EEOC filed its lawsuit in June 2020. CCC Group said, “We take all such allegations very seriously and continue to thoroughly investigate these claims. Regardless, CCC Group will continue its commitment to ensure that any such conduct is not tolerated or allowed to occur in our workplaces.”

800 workers were involved in the upgrade to the plant in New York State, which brought it to its present integrated capacity of 2Mt/yr.

This story was updated on 16 June 2020 following comment from CCC Group

US: The Portland Cement Association (PCA) has lauded the introduction of a bill to reauthorise infrastructure spending until 2025 in the legislative assembly. Called the INVEST in America Act, the Democratic bill proposes to increase investment and shift towards more sustainable infrastructure and transport.

PCA president and chief executive officer (CEO) Mike Ireland said the boosts to funding, “are critically important as our nation deals with high unemployment and economic stagnation as result of the Covid-19 pandemic.” He added, “The PCA stands ready to work with Democrats and Republicans in the House and Senate in delivering a robust and bipartisan surface transportation reauthorisation bill.”

US: The United States Geological Survey (USGS) has reported that total US cement shipments in the first three months of 2020 were 20.9Mt, up by 7.9% year-on-year from 19.4Mt. Imported cement accounted for 2.98Mt (14%) of shipments over the period, up by 22% from 24.4Mt.

The USGS said, “Measures instituted to mitigate the spread of the COVID-19 pandemic may cause disruptions in the cement industry across the United States and around the world. However, no US cement plant closures or idlings were reported in March 2020.”

US: CalPortland has awarded a supply contract to FLSmidth for a new raw mill at its integrated Mojave plant in California. The scope of supply includes engineering, equipment and installation of a new OK 48-4 Raw Mill with a Condition Monitoring System and an ECS/ProcessExpert system. The mill is scheduled to be in operation in late 2021. No value for the current order has been disclosed.

“The new OK Raw Mill from FLSmidth will increase reliability and efficiency at our Mojave plant," said Bruce E Shafer, Senior Vice President for Cement Operations at CalPortland. It follows the purchase of a FLSmidth OK Cement Mill at the same plant in 2004. FLSmidth added that as both OK mills at the plant will share the same gearbox design, the unit will be able to streamline maintenance and manage inventory costs by sharing the one spare FLSmidth MAAG WPU-200 assembly.