Displaying items by tag: patent
Nuvoco Vistas launches Duraguard Microfibre fibre reinforced cement
15 September 2023India: Nuvoco Vistas has launched Duraguard Microfibre Cement, a fibre reinforced cement. The cement’s clinker is 48-52% tricalcium silicate, with low tricalcium aluminate, and contains electrostatically precipitated dry fly ash. The producer says that it offers enhanced bonding, crack resistance, strength and durability and reduced permeability, as well as a smoother surface finish, compared with ordinary Portland cement (OPC). Nuvoco Vistas first applied for a patent for the product in mid-2018.
Managing director Jayakumar Krishnaswamy said "We prioritise innovation. Our Construction Development and Innovation Centre (CDIC) is dedicated to creating sustainable and innovative products that meet the highest global standards. The awarded patent validates our unwavering commitment to innovation and keeps us in the forefront of pioneering advances in the cement industry, delivering exceptional quality and responsible business practices."
Solidia Technologies patents new synthetic pozzolan
11 September 2023US: Texas-based Solidia Technologies has patented a synthetic pozzolan that may be used as a supplementary cementitious material (SCM) in cement production. The product is based on previously low-value materials, including minimally processed oil shales and clay minerals. Solidia Technologies produces the material by various methods, including firing the materials to yield a mix of crystalline components and activatable amorphous phase material. Alternatively, production may also involve the aqueous decomposition of manmade silicates in the presence of CO2.
Europe/India: Finland-based Betolar has secured EU-wide and Indian patents for a new waste-based alternative concrete produced without cement and capable of storing energy. Betolar said that the material, which is already patented in Finland, is especially suited for use in renewable energy infrastructure, where it can provide a storage solution for dealing with short-term peaks. Chief commercial officer Ville Voipio said that the company will now seek to establish a partnership for commercialisation of its new alternative building material.
Betolar produces and markets the Geoprime additive used to produce cement-free concrete from supplementary cementitious materials, including ground granulated blast furnace slag (GGBFS), in regions that include India and the EU.
Hoffmann Green granted second Chinese patent
06 March 2023China: Hoffmann Green Cement, which produces clinker-free cement products has been granted a Chinese patent, No. CN 201880079822.X, for its clay-based H-EVA cement. The patent comes a year after a similar patent for its H-P2A binder.
H-EVA is a clinker-free cement that is based on an alkaline ettringitic technology. It uses activated clay and is presented in the form of a powder that can be stored in a silo. With a mechanical strength of up to 60MPa at 28 days, its strong technical performance makes it suitable for all types of concrete applications in buildings and on roads.
Julien Blanchard and David Hoffmann, co-founders of Hoffmann Green Cement Technologies, said "Following the granting of a first patent for our H-P2A technology, we are delighted to announce the strengthening of our intellectual property in the Chinese market with the granting of a patent for our clay-based H-EVA cement. This confirms once again our technological lead and the relevance of our low-carbon solutions".
China Building Materials Academy patents 3D printing method
04 October 2022China: China Building Materials Academy has patented a new 3D printing method which uses short rebars to reinforce printed layers. The developer says that this will enable builders to ensure structural strength without the disruption caused to 3D printing by the long rebars of conventional building skeletons.
China Building Materials Academy said that an 'inverted U-shaped or inverted L-shaped short rebar is vertically inserted into the cement slurry layer, wherein the bending mechanism comprises two bending members, separately disposed on two sides of a clamp.'
Greece: Titan Cement Group has secured an EU patent for its robotic remote preheater system, previously installed at the company’s Kamari cement plant in Viotia. Titan Cement Group designed the system to maximise operational efficiency and safety.
The company carried out a Euro25m precalciner installation at the Kamari plant in 2021 – 2022.
Malaysia: India-based Larsen & Toubro Ltd and Tamco Switchgear (Malaysia) have filed a patent application for a jointly developed switchgear panel structure. The companies’ customers include cement producers in Malaysia.
Hoffmann Green Cement Technologies secures Chinese patent for its clinker-free cement
11 January 2022China: Hoffmann Green Cement Technologies has secured a Chinese patent for its high performance alkaline activation (H-P2A) geopolymer technology. The patent will enable it to begin to market its clinker-free cement in the country.
Co-founders Julien Blanchard and David Hoffmann said "We are very proud to extend the intellectual property of our H-P2A technology to a market with such great potential as China. The achievement of this first milestone marks our commitment to raising the barriers to entry in as many markets as possible around the world."
India: Sustainable roofing specialist Visaka Industries has acquired a 20-year patent for production of ATUM, a roofing system consisting of cement boards with integrated solar panels. The company says that the product, which has been in development since 2016, is both insulative and capable of generating up to 28W/m2 of power.
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.”