The Problem With Concrete

From the creator

This video is in partnership with Bill and Melinda Gates. You can check out the Gates Annual Letter here: https://b-gat.es/2GxIwba Concrete is responsible for 8% of humanity’s carbon emissions because making its key ingredient - cement - chemically releases CO2, and because we burn fossil fuels to make it happen. Thanks to our Patreon patrons https://www.patreon.com/MinuteEarth and our YouTube members. ___________________________________________ To learn more, start your googling with these keywords: Portland cement - the most common type of cement used worldwide, made with limestone Limestone - a hard sedimentary rock, composed mainly of calcium carbonate (which is also in shells & eggs) Cement - a powder used in construction that’s made by grinding clinker with other minerals and mixing with water to form a paste that sticks to sand, gravel or crushed stone to make concrete Concrete - a building material made by mixing cement with water to form a paste that gains body through fillers like sand and gravel Clinker - an intermediate marble-sized product in cement production created by sintering limestone with clay and other things Sinter - to turn a powdery solid into a single mass by heating it without liquefaction Mortar - another building material (used to adhere bricks or stones together) made by mixing cement with water and sand Calcination - the process of heating a substance to a high temperature, but below its melting point, so it thermally decomposes (like limest

Published 2019-03-01 · Watch on YouTube ↗
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