cements
Yes, limestone and clay are the two main ingredients used to make cement. They are crushed, mixed in precise proportions, and then heated in a rotary kiln to produce cement clinker, which is then ground into a fine powder and mixed with gypsum to make cement.
Limestone would be potentially harder until the clay is fired. The problem we have here is that "clay" is an ambiguous term. There is no homogenous or standard formula for clay. However, clays can generally be formed and baked to become set and hard. This is called firing. Fired clay tends to be quite hard, and depending on the formula, might be harder than limestone.
cement
Quicklime is created from limestone through a process called calcination. The chemical equation for this process is: CaCO3 (limestone) -> CaO (quicklime) + CO2 (carbon dioxide). It involves heating limestone to high temperatures, around 900-1000°C, to drive off the carbon dioxide and produce quicklime.
To make cement with limestone, you need to heat a mixture of limestone and clay in a kiln to about 1400°C, which produces a chemical reaction called calcination. This process breaks down the limestone into calcium oxide (also known as quicklime) which is a key ingredient in cement production. The quicklime is then mixed with other materials such as sand and water to create the final cement product.
The fuel typically used to heat limestone and clay in cement production is coal, natural gas, or petroleum coke. These fuels provide high temperatures needed to convert the raw materials into cement through the process of calcination.
Limestone, CaCO3 decomposes into quicklime, CaO, and carbon dioxide, CO2, when heated. The reaction is: CaCO3 + heat --> CaO + CO2.
Clay can turn into limestone through a process called diagenesis, where the clay particles are subjected to compaction and cementation, forming a new rock material. Over time, the minerals in the clay are altered and precipitate out to form calcium carbonate, which is the primary mineral in limestone.
Yes, cement is made by heating limestone, clay, and other materials in a kiln to produce what is known as clinker. The clinker is then ground into a fine powder and mixed with gypsum to produce cement. Limestone is a key ingredient in the production of cement due to its high calcium content.
Clay, it is better on their hooves.
Yes, limestone and clay are the two main ingredients used to make cement. They are crushed, mixed in precise proportions, and then heated in a rotary kiln to produce cement clinker, which is then ground into a fine powder and mixed with gypsum to make cement.
calcium carbonate (limestone)
you make it by mixing limestone powder and clay in a kiln
No, The Sphinx was made of limestone blocks
Limestone would be potentially harder until the clay is fired. The problem we have here is that "clay" is an ambiguous term. There is no homogenous or standard formula for clay. However, clays can generally be formed and baked to become set and hard. This is called firing. Fired clay tends to be quite hard, and depending on the formula, might be harder than limestone.
cement
Quicklime is created from limestone through a process called calcination. The chemical equation for this process is: CaCO3 (limestone) -> CaO (quicklime) + CO2 (carbon dioxide). It involves heating limestone to high temperatures, around 900-1000°C, to drive off the carbon dioxide and produce quicklime.