blast furnace slag的意思|示意

Blast furnace slag is a type of by-product generated from the production of hot metal from iron ore and coke in a blast furnace. It is composed of a variety of oxides that form a glassy substance upon cooling, which is primarily composed of calcium silicates and alumina. This substance is widely used in various industries, including construction, cement production, and acid neutralization.

In construction, blast furnace slag is used mainly as an aggregate and as a component in concrete. The slag's high silicate content makes it a great aggregate for producing stronger, more durable concrete. In addition, since it offers a degree of insulation and is non-toxic, it is an ideal material for concrete and mortar.

In cement production, blast furnace slag can be used as a supplementary cementitious material to produce blended cement. The material reacts with calcium hydroxide produced from the hydration of Portland cement to form cementitious products, resulting in an improved product with enhanced durability, increased water resistance, and a reduced carbon footprint.

Finally, blast furnace slag is also an effective reagent for neutralizing acidic effluents. Its calcium-rich composition makes it especially effective in absorbing and neutralizing acidity in water streams and wastewater.

Overall, blast furnace slag is a highly versatile material with a multitude of industrial applications. It can be used as an aggregate in construction, as a supplementary cementitious material, and as an acid-neutralizing reagent. As it is a by-product of the steel-making process, it can also help to reduce the environmental impacts associated with steel production.