LC3 - Low Carbon Cement

LC3 is an innovative cement that reduces CO2-emmissios by 30%, saves scarce resources and stands for Now, the amount of clinker is reduced by half in LC3.

For every 20 tonnes of man-made CO2 that enter the atmosphere, one comes from the kilns of cement factories. Emissions in cement production are threefold:

From the production of the electrical energy used to grind the raw materials and clinker;

From the fuel burned to heat the raw materials in a kiln to 1450°C to form clinker, which is later crushed and blended with gypsum to make cement;

Proce

ss emissions: as the limestone is heated, it changes into lime and CO2. These emissions represent 60 to 65% of total emissions linked to cement production. Reducing the amount of clinker in cement, reduces the amount of CO2 in the atmosphere. LC3 allows growth without abstinence due to resources and CO2 efficiency
With current clinker production facilities, production capacity for cement can be increased twofold without increasing total CO2 emissions. Quarry life can then be considerably extended and costly Carbon capture and storage technologies for emission abatement can be avoided. Emissions of LC3 are estimated to be 20-30% lower than Portland cement because:

Reduced clinker content leads to less process emissions from the decarbonation of limestone in clinker and less emissions from heating limestone to form clinker

Grinding limestone takes less energy than heating it

Calcination of clay takes place at 800°C and uses roughly 55% of the energy needed for clinkerisation at 1450°C. Existing equipment can be used
LC3 can be produced with existing manufacturing equipment, leading to only marginally increased investments for calcining equipment. Lower cost of production

Reduced clinker content, decreased fuel consumption for calcination compared to clinker plus the fact that limestone does not need to be heated should contribute to lower production costs. Lower production costs are one of the main drivers for technology uptake. A well-known technology

Clinker–Limestone systems and Clinker–Calcined Clay systems are well established. In effect, LC3 is optimises the synergy between two already known chemical systems. This leads to a higher degree of confidence that the materials will be durable since the chemical nature of the hydrates and pore structure are similar to other blended cements which have proven durable. Ressource efficiency

Using low-grade clay and limestone does not require opening new quarries nor deplete agricultural soils. As a result, LC3 is a very attractive and feasible option to satisfy development and environmental objectives.

31/08/2022

CCSC 2022 at EPFL in Lausanne | Aftermovie In July 2022, the LC3-Project hosted 300 guests for the "Calcined Clays for Sustainable Concrete 2022"-conference in Lausanne, Switzerland. It was exciting t...

09/11/2020

[Full livestream] Watch the Countdown Global Launch, a call to action on climate change

11/10/2020

Did you miss the TED-talk of Prof Scrivener on LC3 ?
Watch it again on YouTube (at minute 4:24:43)

https://youtu.be/5dVcn8NjbwY?t=15882

[Full livestream] Watch the Countdown Global Launch, a call to action on climate change This virtual event, streamed free on 10.10.2020, is the Global Launch of Countdown, a new initiative to accelerate solutions to the climate crisis. Watch fiv...

06/10/2020

22/09/2020

19/02/2020

LC3 / Cemento Verde is now commercially produced and distributed in Colombia by Argos. The new cement reduced up to 38% of CO2-emissions as compared to OPC.
Congratulations for being and environmental leader with this new product!

The implementation was a collaboration with the LC3-Project and Ecosur.

CIDEM Fernando Martirena Ecosolutions

Home Page - Welcome to 3rd International Conference on Calcined Clays for Sustainable Concrete

16/10/2019

Yesteday, our 3rd Int. Conference on Calcined Clay for Sustainable Concrete was inaugurated in Delhi. The opening speeches included words of the Swiss Ambassador Dr Andreas Baum and the Chairman of
Development Alternatives Group Dr Ashok Khosla.

For the full program, follow the link: http://lc3.cimglobal.net

Soumen Maity Fernando Martirena Manu Santhanam Ravindra Gettu Shashank Bishnoi

Home Page - Welcome to 3rd International Conference on Calcined Clays for Sustainable Concrete

Fernando Martirena on LinkedIn: "Seminar on blended cements was carried out in Lima today with a full room with top representatives of main #cement companies in Perú. #lc3 was reckoned as an attractive alternative. Thanks #sdc for organizing it!...

25/09/2019

Yesterday, a seminar on blended cements was held in Lima. LC3 was recognised as the central technology for attractive alternatives of low carbon cements. Thanks to SDC for organising the workshop.

CIDEM EcoSur EPFL

Fernando Martirena on LinkedIn: "Seminar on blended cements was carried out in Lima today with a full room with top representatives of main #cement companies in Perú. #lc3 was reckoned as an attractive alternative. Thanks #sdc for organizing it!... September 25, 2019: Fernando Martirena posted images on LinkedIn

24/09/2019

!! LC3-Newsletter September 2019 out now !!

Find attached our latest LC3-Newsletter with the following topics:

1. 3rd International Conference on Calcined Clays
2. News from our team members
3. Research highlights on LC3
4. Practical insights about LC3
5. LC3-Information Days in Vietnam and South Africa
6. 6th LC3-Doctoral School, application open
7. Upcoming events in 2019

https://mailing.marmailade.com/t/ViewEmail/r/E2A0EDF7F04FA14F2540EF23F30FEDED/6E3B1B5D7B1C809363B21DE8DA818551

LC3 Newsletter September 2019 After two successful conferences held in Lausanne (2015) and Havana (2017), the 3rd International Conference on Calcined Clays for Sustainable Concrete will take place from 15 to 17 October 2019 in New Delhi, India. This conference aims to follow up on the scientific studies and experiences of the...

31 Oct 2019: LC3-Information Day in Vietnam - LC3 - Limestone Calcined Clay Cement

20/09/2019

!! LC3-Information Day on 31 October 2019 in Vietnam !!

The LC3-Project will conduct its next LC3-Information Day in Hanoi as part of the International Conference on Building Materials (ICBM).

Our event will be an opportunity to learn and discuss about the technical, financial and environmental benefits of this innovative cement.

For further information: https://www.lc3.ch/lc3-info-day-vietnam/

Fernando Martirena Soumen Maity IIT Delhi CIDEM Development Alternatives Group EPFL

31 Oct 2019: LC3-Information Day in Vietnam - LC3 - Limestone Calcined Clay Cement LC3-Information Day 31 October 2019 Hanoi, Vietnam The Mitigation of CO2-emissions in the cement industry is becoming a must in most countries. One of the levers, the reduction of the clinker factor, is usually seen as impacting the cement quality. In addition, current supplementary cementitious ...

Feb 2020: 6th Doctoral School on LC3 in Lausanne - LC3 - Limestone Calcined Clay Cement

19/09/2019

!! Registration open: 6th LC3-Doctoral School in Lausanne !!

Our 6th LC3-Doctoral School from 10 to 13 February 2020 will give you an overview of the most recent advances on hydration of cementitious materials and especially blended cements.

The program includes detailed presentations, discussions and experiments of the most relevant and promising techniques for the study of cementitious materials.

During the practical sessions, scientists and researchers will receive insights about all relevant factors which need to be considered to carry out laboratory experiments.

Follow the link for more details and for application:
https://www.lc3.ch/feb-2020-6th-doctoral-school-on-lc3-in-lausanne/

Feb 2020: 6th Doctoral School on LC3 in Lausanne - LC3 - Limestone Calcined Clay Cement 6th LC3-Doctoral School 10th to 13th February 2020EPFLLausanne, SWITZERLAND Objective: The Doctoral School gives an overview of the most recent advances on hydration of cementitious materials and especially blended cements. It includes detailed presentations, discussions and experiments of the most....

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