Connect with us

Concrete

Is there a Real Need for Alternate Cements – A Review

Published

on

Shares

The possibility of alternative cements reducing carbon emission

Most economic growth in this century is projected to be in developing countries and statistics already show that these are the same places that are now consuming 93% of the cement produced globally. Consequently, global demand for cement is presently growing at a rate of about 4 % per annum. It is in these places of high growth and need for new infrastructure where aggressive changes in construction practices may also initiate fundamental change in the chemistry of infrastructure cement.

While the composition of OPC has remained largely the same since last century, and the mechanisms of OPC hydration and structure of C-S-H remain difficult to interpret. However, major advances in the use and performance of cement have come from three fundamental areas: (1) construction technology; (2) the science and engineering of composite materials; and (3) admixture chemistry, both organic and inorganic.

Alternative cements could be defined as inorganic cementitious materials that can be used for construction, but whose properties and composition are not yet specified by existing standards, codal practices and regulations.

The evolution of new cement types will need to overcome both technical and non-technical barriers. Requirements for mechanical performance and long-term durability are critical, but standards and specifications, whether prescriptive or performance-based, will also require robust evolution. In addition, confidence in new materials must be acquired by the end user (e.g., contractors) in the field-based application of new cements. In each case, some application flexibility will be needed, because new cements may need to be processed and placed in a manner somewhat different from OPC-based concrete.

Substantial progress should be made scientifically, before these cements can be manufactured at industrial scales. On the other hand, Calcium Sulpho Aluminate cements (CSA) appear to be emerging as a leading alternative cement over the next decade. Indeed, in near future commercial production of CSA cements appears to be implemented in the Western world.

In broader terms, the stimulus and time scale to innovation and evolution of alternative cements depends on public policy. Scientific developments and technology can inform debates, but if the cement industry is to remain competitive in the face of possible policy-driven mandates, it needs to present realistic, viable and impactful alternatives to traditional OPC.

A shift away from OPC will tend to compromise the calcium buffer, and hence the extent of passivity afforded, but simultaneous changes in reinforcing materials away from ferrous metals (e.g. fiber-reinforced polymers) may reduce the need for corrosion resistance. Nevertheless, because of the driving force to reduce CO2 emissions, some alternative cements that may emerge in the next 100 years appear promising.

Click here to read more

Concrete

Molecor Renews OCS Europe Certification Across Spanish Plants

Certification reinforces commitment to preventing microplastic pollution

Published

on

By

Shares



Molecor has renewed its OCS Europe certification for another year across all its production facilities in Spain under the Operation Clean Sweep (OCS) voluntary initiative, reaffirming its commitment to sustainability and environmental protection. The renewal underlines the company’s continued focus on preventing the unintentional release of plastic particles during manufacturing, with particular attention to safeguarding marine ecosystems from microplastic pollution.

All Molecor plants in Spain have been compliant with OCS Europe standards for several years, implementing best practices designed to avoid pellet loss and the release of plastic particles during the production of PVC pipes and fittings. The OCS-based management system enables the company to maintain strict operational controls while aligning with evolving regulatory expectations on microplastic prevention.

The renewed certification also positions Molecor ahead of newly published European regulations. The company’s practices are aligned with Regulation (EU) 2025/2365, recently adopted by the European Parliament, which sets out requirements to prevent pellet loss and reduce microplastic pollution across industrial operations.

Extending its sustainability commitment beyond its own operations, Molecor is actively engaging its wider value chain by informing suppliers and customers of its participation in the OCS programme and encouraging responsible microplastic management practices. Through these efforts, the company contributes directly to the United Nations Sustainable Development Goals, particularly SDG 14 ‘Life below water’, reinforcing its role as a responsible industrial manufacturer committed to environmental stewardship and long-term sustainability.

Continue Reading

Concrete

Coforge Launches AI-Led Data Cosmos Analytics Platform

New cloud-native platform targets enterprise data modernisation and GenAI adoption

Published

on

By

Shares



Coforge Limited has recently announced the launch of Coforge Data Cosmos, an AI-enabled, cloud-native data engineering and advanced analytics platform aimed at helping enterprises convert fragmented data environments into intelligent, high-performance data ecosystems. The platform strengthens Coforge’s technology stack by introducing a foundational innovation layer that supports cloud-native, domain-specific solutions built on reusable blueprints, proprietary IP, accelerators, agentic components and industry-aligned capabilities.

Data Cosmos is designed to address persistent enterprise challenges such as data fragmentation, legacy modernisation, high operational costs, limited self-service analytics, lack of unified governance and the complexity of GenAI adoption. The platform is structured around five technology portfolios—Supernova, Nebula, Hypernova, Pulsar and Quasar—covering the full data transformation lifecycle, from legacy-to-cloud migration and governance to cloud-native data platforms, autonomous DataOps and scaled GenAI orchestration.

To accelerate speed-to-value, Coforge has introduced the Data Cosmos Toolkit, comprising over 55 IPs and accelerators and 38 AI agents powered by the Data Cosmos Engine. The platform also enables Galaxy solutions, which combine industry-specific data models with the core technology stack to deliver tailored solutions across sectors including BFS, insurance, travel, transportation and hospitality, healthcare, public sector and retail.

“With Data Cosmos, we are setting a new benchmark for how enterprises convert data complexity into competitive advantage,” said Deepak Manjarekar, Global Head – Data HBU, Coforge. “Our objective is to provide clients with a fast, adaptive and AI-ready data foundation from day one.”

Supported by a strong ecosystem of cloud and technology partners, Data Cosmos operates across multi-cloud and hybrid environments and is already being deployed in large-scale transformation programmes for global clients.

Continue Reading

Concrete

India, Sweden Launch Seven Low-Carbon Steel, Cement Projects

Joint studies to cut industrial emissions under LeadIT

Published

on

By

Shares



India and Sweden have announced seven joint projects aimed at reducing carbon emissions in the steel and cement sectors, with funding support from India’s Department of Science and Technology and the Swedish Energy Agency.

The initiatives, launched under the LeadIT Industry Transition Partnership, bring together major Indian companies including Tata Steel, JK Cement, Ambuja Cements, Jindal Steel and Power, and Prism Johnson, alongside Swedish technology firms such as Cemvision, Kanthal and Swerim. Leading Indian academic institutions, including IIT Bombay, IIT-ISM Dhanbad, IIT Bhubaneswar and IIT Hyderabad, are also participating.

The projects will undertake pre-pilot feasibility studies on a range of low-carbon technologies. These include the use of hydrogen in steel rotary kilns, recycling steel slag for green cement production, and applying artificial intelligence to optimise concrete mix designs. Other studies will explore converting blast furnace carbon dioxide into carbon monoxide for reuse and assessing electric heating solutions for steelmaking.

India’s steel sector currently accounts for about 10–12 per cent of the country’s carbon emissions, while cement contributes nearly 6 per cent. Globally, heavy industry is responsible for roughly one-quarter of greenhouse gas emissions and consumes around one-third of total energy.

The collaboration aims to develop scalable, low-carbon industrial technologies that can support India’s net-zero emissions target by 2070. As part of the programme, Tata Steel and Cemvision will examine methods to convert steel slag into construction materials, creating a circular value chain for industrial byproducts.

Continue Reading

Trending News