Who invented the cementing agent that is most commonly used in modern concrete production?

 The cementing agent that is most commonly used in modern concrete production is Portland cement. It was invented by Joseph Aspdin, a British bricklayer and builder, in the early 19th century. He patented the product in 1824, naming it "Portland cement" because the color and texture of the

hardened cement resembled the natural limestone quarried on the Isle of Portland. He ground a mixture of limestone and clay into a fine powder, heated it in a kiln until it partially fused, and then ground it again to produce a fine powder that when mixed with water, formed a strong and durable concrete. This cementing agent, Portland cement, is still in use today and it is the most widely used type of cement in the world.