Lecture

Introduction to LC³: Sustainable Cement Production

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Description

This lecture introduces LC³, a sustainable cement production technology that aims to reduce CO₂ emissions by replacing part of the cement clinker with supplementary cementitious materials. The LC³ project, involving partners from Switzerland, Cuba, and India, has the potential to significantly lower worldwide CO₂ emissions. The lecture covers the composition of LC³, its environmental benefits, and the process of making LC³, including assessing kaolinite content and activation temperature. Full-scale trials in Cuba and India demonstrate the practical application of LC³ technology, highlighting its potential impact on the construction industry.

In MOOC

Cement Chemistry and Sustainable Cementitious Materials

We all know the concrete used to build our houses, offices, schools, or bridges, but do you know why concrete resists? The aim of this course is to offer solid knowledge on cement chemistry to practioners or to new student in the field. It is therefore not necessary to have a cement background, however basic concepts in chemistry, physics and crystallography can help. This course lasts 6 weeks during which you can take theoretical courses and tutorials to test the cement in the laboratory. You will learn h

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Related concepts (12)

Cement

A cement is a binder, a chemical substance used for construction that sets, hardens, and adheres to other materials to bind them together. Cement is seldom used on its own, but rather to bind sand and gravel (aggregate) together. Cement mixed with fine aggregate produces mortar for masonry, or with sand and gravel, produces concrete. Concrete is the most widely used material in existence and is behind only water as the planet's most-consumed resource.

Portland cement

Portland cement is the most common type of cement in general use around the world as a basic ingredient of concrete, mortar, stucco, and non-specialty grout. It was developed from other types of hydraulic lime in England in the early 19th century by Joseph Aspdin, and is usually made from limestone. It is a fine powder, produced by heating limestone and clay minerals in a kiln to form clinker, grinding the clinker, and adding 2 to 3 percent of gypsum. Several types of portland cement are available.

Cement clinker

Cement clinker is a solid material produced in the manufacture of Portland cement as an intermediary product. Clinker occurs as lumps or nodules, usually to in diameter. It is produced by sintering (fusing together without melting to the point of liquefaction) limestone and aluminosilicate materials such as clay during the cement kiln stage. The Portland clinker essentially consists of four minerals: two calcium silicates, alite (Ca3SiO5) and belite (Ca2SiO4), along with tricalcium aluminate (Ca3Al2O6) and calcium aluminoferrite (Ca2(Al,Fe)2O5).

Emissions trading

Emissions trading is a market-based approach to controlling pollution by providing economic incentives for reducing the emissions of pollutants. The concept is also known as cap and trade (CAT) or emissions trading scheme (ETS). Carbon emission trading for and other greenhouse gases has been introduced in China, the European Union and other countries as a key tool for climate change mitigation. Other schemes include sulfur dioxide and other pollutants.

Greenhouse gas emissions

Greenhouse gas emissions (abbreviated as GHG emissions) from human activities strengthen the greenhouse effect, contributing to climate change. Carbon dioxide (), from burning fossil fuels such as coal, oil, and natural gas, is one of the most important factors in causing climate change. The largest emitters are China followed by the US, although the United States has higher emissions per capita. The main producers fueling the emissions globally are large oil and gas companies.

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