Displaying items by tag: trial

US: A ‘leading global building materials producer’ has independently validated Premier Graphene’s claimed 32% increase in the tensile strength of concrete produced using its graphene enhancement technology. Dow Jones Institutional News has reported that the building materials producer will now conduct larger-scale testing prior to possibly entering into initial and long-term supply agreements with Premier Graphene.

Premier Graphene president Pedro Mendez said "We are thrilled with the positive feedback we've received, and we look forward to seeing the results of the further concrete testing which is expected to be confirmed and lead to orders. This could mark a significant milestone for Premier Graphene and our commitment to advancing construction technologies."

Saudi Arabia: Meyar has initiated trial operations at its new ready-mix concrete and concrete products plant in Malham, Riyadh. Argaam News has reported that the trial will ascertain the proper functioning of equipment and the efficiency of the plant.

Meyar acquired the Malham site in September 2023 for US$880,000.

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."

US: Premier Graphene has despatched test samples of its proprietary graphene suspension to ‘one of the largest essential materials companies.’ Graphene-Info News has reported that Premier Graphene expects the samples to confirm its findings of a 32% increase in compressive strength after 28 days, compared to concrete produced without its graphene.

President Pedro Mendez said "Our internal tests have confirmed multiple advantages that position our green cement product strongly in the market. These include increased strength with reduced cement usage, substantial carbon footprint reduction and enhanced durability. We anticipate strong market adoption driven by our cost-effective graphene production methods and established, remarkable efficacy. Our strategy encompasses both graphene colloids for customised mixing by manufacturers and the development of graphene-based products like epoxies and lubricants. This phased approach minimises capital expenditure while maximising product innovation.”

US: Terra CO₂ has begun full-scale trial production of concrete without cement using its novel supplementary cementitious material, Opus Zero. The SCM consists of ground, heated glass spheres made from silicate rock.

Chief scientific officer DJ Lake said “Opus Zero represents a pivotal moment in our journey towards sustainable cement and concrete. Of the very few non-carbon-capture solutions to decarbonising cement, with none proven at scale, Opus Zero stands above the rest for being inherently cost-efficient, practical and scalable for the industry. Today, Opus Zero represents a zero-clinker cement that can be produced with abundant feedstock around the world, does not require opening new mines to scale, and aims to seamlessly fold into the current industry landscape.”

France: Lafarge France is participating in a 76-unit housing development project called Recygénie, at Gennevilliers in Hauts-de-Seine. Lafarge France will supply the project with 100% recycled concrete for use in facades, interior walls and roof slabs. It produced 2000t of 100% recycled 'clinker' at its Altkirch cement plant in Haut-Rhin during a suspension of ordinary clinker production in 2022. It has produced 1600m³ of recycled concrete to date. The concrete won the New Materials Prize at L'Usine Nouvelle's Sustainable Industry Awards 2023.

The Recygénie housing project is due for delivery in late 2024.

Europe: Cemex has reported its success in a trial of zero-CO₂ emissions concrete mixer trucks across its operations in France, Germany and Poland. The trial implemented Germany-based Putzmeister’s IONTRON E-Mixer prototype trucks and mobile charging stations. Cemex was able to recharge the vehicles from 20% battery in eight hours. This will enable it to maintain its supply of concrete to construction sites during their operating hours.

Cemex Europe’s mobile equipment fleet and category manager Craig Hooper said “Transport is one of the key areas where Cemex is striving to reduce carbon emissions. Our company is constantly looking for new, more environmentally-friendly transport solutions, hence the decision to conduct extensive pilot studies to verify the possibilities offered by electric concrete mixers. The positive results of the trials in Europe now allow us to think positively about the potential implementation of these vehicles, which will bring Cemex closer to achieving its climate goals.”