1:6 slag concrete mix ratio: 252 kilograms of cement, 1.27 cubic meters of slag, and 0.3 cubic meters of water per cubic meter. ?
Slag 1.27 cubic meters * 800 = 1016, water 0.3 cubic meters = 300 kilograms.
The density of cement in engineering is generally 3.12 grams per cubic centimeter. The density of mineral powder is generally 2.88 grams per cubic centimeter, so the ratio of converted true mass should be 1*2.88:6*3.12=1:6.5.
Extended information
Portland Cement (English: Portland Cement), also known as Portland cement, is composed of Portland cement clinker, 0%-5% limestone or Hydraulic cementitious material made from granulated blast furnace slag and ground appropriate amount of gypsum.
The main components of Portland cement clinker are tricalcium silicate, dicalcium silicate, tricalcium aluminate and tetracalcium aluminoferrite. When mixed with water, a complex physical and chemical reaction occurs called hydration. After the cement is mixed with water, it becomes a plastic slurry, and the cement slurry gradually thickens and loses its plasticity but does not yet have strength. This process is called "setting". It then develops significant strength and gradually develops into hard cement stone, a process called hardening.
Both the British and the Russians invented cement in the 1820s. In 1824, the Englishman Joseph Aspdin invented a method of calcining clay and lime to obtain cement, and obtained a British patent.
After that, factories were built and produced in England starting in 1825. The main components of this cement are calcium oxide and silicon oxide, also known as calcium silicate, which is a type of silicate. The concrete made from it, after hardening, has a hardness, appearance and color very similar to the Portland stone produced on the island of Portland in the UK at that time, so it was named "Portland cement".
Asputin used this cement to build a tunnel under the Thames River in London, England. Since the emergence of Portland cement, the concrete made with it has the strength and durability required for engineering, and the raw materials are easily available, the cost is low, especially the energy consumption is low, so it is widely used.
Reference: Baidu Encyclopedia: Slag Concrete