Concrete is bound with portland cement which is made by roasting.

混凝土由波特兰水泥粘合，波特兰水泥是通过制成的。

A chemical reaction called calcination drives the carbon from the limestone, producing lime.

一个称的化学反应将石灰石中的驱除，产生石灰。

The other half comes from calcination, the chemical reaction that transforms limestone into clinker.

另一半则来自过程，即将石灰石转化熟料的化学反应。

Then a reaction takes place inside the Kiln known as calcination which produces carbon dioxide is a by-product.

然后在窑内发生称的反应，产生的产品是二氧化。

It is made of bones calcinated in close vessels, and is used for the purpose of decolorizing, by filtration, the cane juice before boiling.

它由在密闭容器中的骨头制成，用于在煮沸前通过过滤对甘蔗汁进行脱色。

Around half the carbon dioxide emissions from cement making come from the calcination reaction alone, the rest coming mainly from quarrying the limestone and heating the kiln.

大约一半的水泥生产过程中的二氧化排放仅来自反应，其余主要来自开采石灰石和加热窑炉。

In Colombia, a product based on this technology was commercialized a few months ago, and in the Ivory Coast, the full-scale plant is being commissioned to calcine clays.

在哥伦比亚， 一种基于该技术的产品已于几个月前实现商业化，而在科特迪瓦， 全规模工厂正投入使用以粘土。

Limestone is refined to produce calcium oxide, or quicklime, for cement, in a reaction known as calcination, which releases a lot of carbon in the form of CO2.

石灰石被提炼以生产用于水泥的氧化钙或生石灰， 在称的反应中，该反应以 CO2 的形式释放大量。

I saw another at work to calcine ice into gunpowder; who likewise showed me a treatise he had written concerning the malleability of fire, which he intended to publish.

我看到另一个人正在努力将冰成火药；他还给我看了一篇他写的关于火的可塑性的论文，他打算出版这篇论文。

And here in Switzerland, we have found that clays produce very reactive materials when they're calcined,that's to say heated to around 800 degrees Celsius, significantly lower than the 1,450 needed to produce cement.

在瑞士，我们发现粘土在时会产生非常活泼的物质， 也就是说， 加热到 800 摄氏度左右，远低于生产水泥所需的 1, 450 摄氏度。

We then take this calcined clay, and we add a bit of limestone -- but this time not heated, so no CO2 emissions -- and some cement, and this combination of limestone, calcined clay and cement, we call LC3.

然后我们用这种粘土，加入一点石灰石——但这次没有加热， 所以没有二氧化排放——和一些水泥， 这种石灰石、粘土和水泥的组合，我们称之 LC3。