Limestone calcined clay cement LC3 - Revision history

Editor at 09:00, 2 December 2025

2025-12-02T09:00:32Z

← Older revision		Revision as of 09:00, 2 December 2025
Line 7:		Line 7:
	The development of LC3 began in 2004 with the exploration of calcined clays as a sustainable SCM replacement for clinker. [https://www.sciencedirect.com/science/article/abs/pii/S0008884617302454 Additional research] has taken place with the support of various funding agencies to develop technical viability.		The development of LC3 began in 2004 with the exploration of calcined clays as a sustainable SCM replacement for clinker. [https://www.sciencedirect.com/science/article/abs/pii/S0008884617302454 Additional research] has taken place with the support of various funding agencies to develop technical viability.

−	In 2020, additional funding was granted by the Swiss Agency for Development and Cooperation (SDC). With this support, experimental production of LC3 has begun in different parts of the world~~. Plans are underway~~ to expand the scale ~~of the project~~ globally.	+	In 2020, additional funding was granted by the Swiss Agency for Development and Cooperation (SDC). With this support, experimental production of LC3 has begun in different parts of the world, with plans to expand the scale globally.

−	= Related articles on Designing Buildings ~~Wiki~~ =	+	In November 2025 [https://www.hmt-global.com/en Heidelberg Materials Trading] announced "Expanding Sustainable Solutions in Cement Production-. As part of our ongoing commitment to provide environmentally conscious solutions to our customers, we are pleased to announce the addition of Calcined Clay to our product portfolio."<br />
		+	<br />
		+	"About Calcined Clay: Calcined Clay is a sustainable and innovative material suitable for use in cement production. To produce calcined clay, raw clay minerals are heated to between 650°C and 950°C. The resulting calcined clay can be used to reduce the proportion of traditional clinker in cement. Since CO₂ emissions from clay calcination are significantly lower than emissions from clinker production, substituting clinker with calcined clays significantly reduces the cement produced. It is possible to achieve cements with carbon dioxide (CO2) emissions up to 40% lower compared to traditional cement. Our Commitment to Sustainability: This new product offering demonstrates our dedication to delivering environmentally friendly solutions and assisting our clients in meeting their sustainability objectives."<br />
		+
		+
		+	= Related articles on Designing Buildings =

	* Clinker in construction.		* Clinker in construction.

Designing Buildings at 08:05, 24 August 2021

2021-08-24T08:05:50Z

← Older revision		Revision as of 08:05, 24 August 2021
Line 1:		Line 1:
−	Limestone calcined clay cement - also referred to as LC3 - is a form of cement that is being developed through a manufacturing process that is ~~meant to reduce~~ CO2 emissions.	+	Limestone calcined clay cement - also referred to as LC3 - is a form of cement that is being developed through a manufacturing process that is reduces CO2 emissions.

−	The production of LC3 requires limestone (15%) and low grade calcined clays (30%) to form a type of supplementary cementitious material or SCM. LC3 also requires gypsum (5%) and clinker (50%). While there is still clinker in LC3, the amount is significantly less than ~~that which is typically found~~ in Portland cement~~; clinker traditionally makes~~ up to 95% ~~of Portland cement~~.	+	The production of LC3 requires limestone (15%) and low grade calcined clays (30%) to form a type of supplementary cementitious material or SCM. LC3 also requires gypsum (5%) and clinker (50%). While there is still clinker in LC3, the amount is significantly less than in Portland cement (up to 95%).

−	Clinker is not considered environmentally friendly, since it is produced at high temperatures. Producing SCM for LC3 requires less energy ~~than the production of Portland cement (which has higher levels of clinker). This characteristic~~ contributes to the CO2 reduction properties of LC3.	+	Clinker is not considered environmentally friendly, since it is produced at high temperatures. Producing SCM for LC3 requires less energy and so contributes to the CO2 reduction properties of LC3.

−	The development of LC3 began in 2004 with the exploration of calcined clays as a sustainable SCM replacement for clinker. [https://www.sciencedirect.com/science/article/abs/pii/S0008884617302454 Additional research] has taken place with the support of various funding agencies to ~~support its~~ technical viability.	+	The development of LC3 began in 2004 with the exploration of calcined clays as a sustainable SCM replacement for clinker. [https://www.sciencedirect.com/science/article/abs/pii/S0008884617302454 Additional research] has taken place with the support of various funding agencies to develop technical viability.

	In 2020, additional funding was granted by the Swiss Agency for Development and Cooperation (SDC). With this support, experimental production of LC3 has begun in different parts of the world. Plans are underway to expand the scale of the project globally.		In 2020, additional funding was granted by the Swiss Agency for Development and Cooperation (SDC). With this support, experimental production of LC3 has begun in different parts of the world. Plans are underway to expand the scale of the project globally.

Editor at 17:12, 23 August 2021

2021-08-23T17:12:40Z

← Older revision		Revision as of 17:12, 23 August 2021
Line 5:		Line 5:
	Clinker is not considered environmentally friendly, since it is produced at high temperatures. Producing SCM for LC3 requires less energy than the production of Portland cement (which has higher levels of clinker). This characteristic contributes to the CO2 reduction properties of LC3.		Clinker is not considered environmentally friendly, since it is produced at high temperatures. Producing SCM for LC3 requires less energy than the production of Portland cement (which has higher levels of clinker). This characteristic contributes to the CO2 reduction properties of LC3.

−	The development of LC3 began in 2004 with the exploration of calcined clays as a sustainable SCM replacement for clinker. Additional ~~exploration~~ has taken place with the support of various funding agencies to support its technical viability.	+	The development of LC3 began in 2004 with the exploration of calcined clays as a sustainable SCM replacement for clinker. [https://www.sciencedirect.com/science/article/abs/pii/S0008884617302454 Additional research] has taken place with the support of various funding agencies to support its technical viability.

	In 2020, additional funding was granted by the Swiss Agency for Development and Cooperation (SDC). With this support, experimental production of LC3 has begun in different parts of the world. Plans are underway to expand the scale of the project globally.		In 2020, additional funding was granted by the Swiss Agency for Development and Cooperation (SDC). With this support, experimental production of LC3 has begun in different parts of the world. Plans are underway to expand the scale of the project globally.
Line 16:		Line 16:
	* Portland cement.		* Portland cement.
	* Urban mining to reinvent concrete.		* Urban mining to reinvent concrete.
		+
		+	= External resources =
		+
		+	* Cement and Concrete Research, [https://www.sciencedirect.com/science/article/abs/pii/S0008884617302454 Calcined clay limestone cements (LC3)].
		+
		+	[[Category:DCN_Product_Knowledge]] [[Category:DCN_Research,_Development_and_Innovation]] [[Category:Research_/_Innovation]] [[Category:Products_/_components]]

Editor: Created page with "Limestone calcined clay cement - also referred to as LC3 - is a form of cement that is being developed through a manufacturing process that is meant to reduce CO2 emissions. The..."

2021-08-23T16:50:35Z

Created page with "Limestone calcined clay cement - also referred to as LC3 - is a form of cement that is being developed through a manufacturing process that is meant to reduce CO2 emissions. The..."

New page

Limestone calcined clay cement - also referred to as LC3 - is a form of cement that is being developed through a manufacturing process that is meant to reduce CO2 emissions.

The production of LC3 requires limestone (15%) and low grade calcined clays (30%) to form a type of supplementary cementitious material or SCM. LC3 also requires gypsum (5%) and clinker (50%). While there is still clinker in LC3, the amount is significantly less than that which is typically found in Portland cement; clinker traditionally makes up to 95% of Portland cement.

Clinker is not considered environmentally friendly, since it is produced at high temperatures. Producing SCM for LC3 requires less energy than the production of Portland cement (which has higher levels of clinker). This characteristic contributes to the CO2 reduction properties of LC3.

The development of LC3 began in 2004 with the exploration of calcined clays as a sustainable SCM replacement for clinker. Additional exploration has taken place with the support of various funding agencies to support its technical viability.

In 2020, additional funding was granted by the Swiss Agency for Development and Cooperation (SDC). With this support, experimental production of LC3 has begun in different parts of the world. Plans are underway to expand the scale of the project globally.

= Related articles on Designing Buildings Wiki =

* Clinker in construction.
* Concrete.
* Limestone for building.
* Portland cement.
* Urban mining to reinvent concrete.