Modern Portland cement consists of a combination of limestone and clay. The quality of the cement manufactured depends on factors such as the consistency of the limestone mined, the maximum.
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One of the first batches of modern cement was cooked up in a kitchen. In 1824, the British bricklayer Joseph Aspdin began experimenting with clay and limestone, mixing the ingredients with water and heating them in a furnace.
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Cementing possibilities downtoearth.org.in - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from downtoearth.org.in Daily Mail and Mail on Sunday newspapers.