06Feb 2018

The LC3-project presented its technology and advances during the 5th Stakeholder Meeting at India Habitat Centre in New Delhi. The meeting was held on 06 February 2018 and included presentations from the project partners Swiss Agency for Cooperation and Development, EPFL, IIT Delhi, IIT Madras and TARA. In the following representatives from the industry provided insights on their production of LC3. Most importantly, enriching discussions were held in order to empower the technology, its production and application in the future. 

Prof. Dr. Karen Scrivener (Director of the LC3-project) presented LC3 to a wide audience during the 5th Stakeholder Meeting of the in New Delhi, India.

02Feb 2018

The LC3-project concerns Limestone Calcined Clay Cement which has a huge potential to lower CO2 emissions of cementitious materials. Significant progress has been made over the first three years of the project including extensive research, laboratory trials and first industrial productions. These results were shared on 02 February 2018 with an international audience at the 4th Stakeholder Meeting of the LC3-project. 

The meeting also included an introduction to the LC3 Technology Resource Centre (TRC) in India. The TRC has been initiated to provide state the art knowledge on LC3 and related products. The center provides consultancy services for establishing feasibility of LC3 in cement production and testing facilities for use of LC3 in concrete and concrete applications. The network offering support consists of IIT Delhi, IIT Madras, TARA, EPFL  and CIDEM Cuba. Direct contact to the TRC: lc3trc@devalt.org

Marylaure Crettaz Corredor (Head of the Swiss Cooperation Office in India) opened the 4th Stakeholder Meeting of the LC3-project in Mumbai, India

09Aug 2017
JK Lakshmi grinding unit: Jhajjar, Haryana, INDIA

JK Lakshmi grinding unit: Jhajjar, Haryana, INDIA

LC3 project is pleased to announce a new collaboration between The Indian Institute of Technology Delhi and JK Lakshmi Cement Ltd..

This collaborative effort has made it possible the first full-scale trial production of a new cement known as Limestone Calcined Clay Cement (LC3) and at the same time developed a new environment friendly additive for concrete that makes it easier to produce high performance concrete at a lower cost.

Last year, JK Lakshmi became the first cement company in the world to carry out a full-scale plant trial production of the cement. The cement was produced at the Jhajjhar unit of the company. Trial applications of the cement have shown that it can reduce as much as 30% CO2 emissions and 20% energy consumption in cement production. Still, the performance of the concrete produced using this cement exceeds those using cements commercially available today in most aspects. The production is also one of the first such collaborations between the cement industry and academia to develop mainstream products. Full-scale trial applications of this cement have shown that it can be effortlessly introduced without any changes to the existing construction practices.Trials of the cement in the field and in ready-mix concrete plants have yielded excellent results.

Very importantly, the collaboration on LC3 led to the partners exploring several new fronts where technological developments could significantly impact sustainability, quality and costs. One such result is a new concrete additive that can be used to increase strength of concrete and to improve its durability. The additive reduces the requirement of energy-intensive and expensive cement in the concrete, thereby reducing construction cost and achieving as much as 20% increase in strength. It is foreseen that this product will find usage in high-performance applications like water-proofing, high strength concrete, self-compacting concrete, etc.
At the same time, it promises to reduce the cost of more common applications like masonry construction, wall plaster, road pavers, and walling blocks. The effort is in line with the Government initiative to provide housing to all by 2022 at a reasonable cost and environmental impact.

Monitoring of production at JK Lakshmi facilities

Monitoring of production at JK Lakshmi facilities

JK Lakshmi Cements Ltd.
“The challenge of continuing to develop, without irreversibly harming the environment and affecting the future generations, can only be addressed through innovative thinking. I am confident that this collaboration will develop a synergy between the experience and knowledge of the industry and the ability of the young minds at our research institutes to innovate, to develop solutions that will allow India to continue developing without harming its future prospects.”

Mr. S. K. Wali, wholetime Director, JK Lakshmi Cements.

The Indian Institute of Technology Delhi (LC3 project representative in India)
“Direct interaction with the industry will help us to utilise the great potential in our research institutes for the development of technologies that are relevant to our society. This will also ensure a more practical and hands-on training for the students and researchers, instead of rote learning”.

Dr. Shashank Bishnoi, IIT Delhi.

01May 2017

In April was held the third doctoral school on LC3 and the characterization methods at the EPFL. We thank the 27 participants from all over the world.

07Mar 2017


In recent months, in India, it has been possible to manufacture several precast elements and heavy duty roads pavements thanks to a highly flowable mix design with  LC3-50.

Click here for a visual overview of the elements and pavements as well as the properties of the mix design.

22Sep 2016

On Wednesday, September 14 ,2016,  the national organization for standardization in Cuba approved the new standard for LC3 cements in the Technical Committee TC 22. Soon, it will be possible to manufacture and market cement in which 50% of clinker can be substituted by the limestone and calcined clays which meets specific performance criteria. These criteria were studied and defined by a panel of experts to develop a cement that meets the requirememnts of safety and quality. In the near future, LC3 will be available within a legal framework for everyone to build stronger and more environmentally friendly homes.

30May 2016

From May 18th to 20th , at EPFL (Switzerland) , held the 2nd doctoral school on the characterization of cementitious materials. It brought together 22 participants from 11 different countries. The three days of training were focused on laboratory techniques with over 8 hours of practical work.
Based on this success, the training school will be rescheduled in 2017 !!

photo group1 phtogroup2

30Oct 2015


For Immediate Release

LC3: Of Chocolate & Rum

Although many trendy bars now serve chocolate mojitos, a Swiss and Cuban mix is not obvious. Yet, when it comes to cement, Swiss, Cuban and Indian scientists have tackled one of the world’s lesser known but biggest challenges.

As countries develop, demand for housing and infrastructure increases. Concrete is by far the most commonly used construction material to meet these needs, and cement is required to make concrete. As the Cuban economy reforms, demand for construction materials is growing extremely fast; demand for cement is expected to grow by over 70% over the next 3 years. Cuba currently does not have the production capacity in place to sustain that growth. Furthermore, cement production is carbon and resource intensive. One of Cuba’s challenges is to find ways of producing more cement with existing clinker production capacity, to meet growing demand with a reduced environmental impact.

Prof. Fernando Martirena Hernández, leader of the Cuban LC3 team said: “The challenge of meeting the sudden increase in cement demand gives Cuba the unique opportunity of choosing a low carbon path towards development through the introduction of LC3 at a large scale, as the only viable option in the very short term. In the mid to long term, LC3 could also allow Cuba to preserve valuable resources whilst yet meeting development needs”.

The answer came from a long standing cooperation between the École Polytechnique Fédérale de Lausanne in Switzerland and the Universidad Central de las Villas in Cuba. A unique mix between fundamental material science and hands on field tests have shown that abundantly available low grade kaolin clay could be used as an alternative, low carbon, raw material. The initial results from the field trials in Cuba were confirmed by a broader project that involved a range of research and development organisations in India.

LC3, as this new cement came to be known, makes it possible to nearly double the quantity of cement produced from the same quantity of limestone by substituting a large portion of clinker (an intermediary material made by heating limestone at very high temperatures) with calcined clay.

Limestone Calcined Clay Cement (LC3) has the potential to reduce CO2 emission by 20-30% compared to traditional cement; a major reduction considering that cement accounts for 5-8% of today’s manmade emissions.

LC3 is a low-carbon and low-cost cement that delivers similar or even superior performance properties compared to Portland cement. The blend can be easily manufactured in existing production lines, requiring only minor capital investments.

“The potential impact of the LC3 project is very significant. After water, concrete is the most used material in the world. Any emissions reduction will have a substantial impact”, explains Professor Scrivener who heads the LC3 project. “LC3 can become an essential construction material, especially in fast-growing emerging economies where minimising environmental impact and resource depletion are a top priority”. It is estimated that using LC3 instead of regular cement can save up to 500 million tonnes of CO2 per year by 2050 (equivalent to the emission of the UK or Canada). “If we want to advance the sustainability of concrete – its cost, availability and environmental footprint – we have to act before demand increases exponentially”, says Scrivener.

Industrial scale pilot projects were implemented in Cuba and India, and in both countries several structures were successfully built using the cement. Cuba will be the first country where LC3 will be produced at a commercial scale. It will enable to meet growing demand without large capital investments and whilst lowering the impact on the environment.

A chocolate mojito with a nice twist.

For more Information,
please contact:

École polytechnique fédérale de Lausanne
Mr. Rob Fielding
Tel: +41 21 693 10 28

Universidad Central de las Villas
Facultad de Construcciones/Faculty of Constructions
José Fernando Martirena Hernández (Prof. Dr.Sc. Ing.)
Tel: +53 42 205872 ext 102

Click the images below to download the English version or the Spanish version of the Press Release.



19Feb 2015

A 4-day Life Cycle Assessment (LCA) Seminar was held in TARA Delhi. Experts from Cuba, Switzerland and India discussed the methodology and data collection for upcoming studies on the environmental benefit of LC3 Cements.