Application analysis of water slag in thermal insulation


The slag is a process of rapidly cooling the blast furnace slag in a hot-melt state in water, mainly in the form of water quenching of the slag pool or water quenching before the furnace. Water slag is used as building materials for the production of cement and concrete. Because of its potential hydraulic gelling properties, slag can be used as a high-quality cement raw material under the action of cement clinker, lime, gypsum and other activators. Acid cement, gypsum slag cement, lime slag cement, slag brick, slag concrete, etc.

The slag has a wide range of uses in cementitious materials, such as slag Portland cement, gypsum slag cement, lime slag cement, wet slag concrete, and exterior wall insulation materials will be described. In addition, the slag can also be used as a fine aggregate of concrete, which can be used to improve the grading of sand and reduce the bulk density of concrete, and can also be used as a thermal insulation material. The exterior wall insulation material describes the application of water slag in insulation materials.

Water slag used as insulation material generally has the following properties:

1. Light and porous, small capacity (250~400 kg/m3), with good thermal insulation performance;

2, can withstand high temperature, can be used as thermal insulation materials for industrial pipes and equipment with heat resistance below 600 degrees;

3. It is flexible and can reduce the damage of equipment caused by thermal expansion and vibration.

As an insulation material, slag can replace foam concrete for roof insulation and replace some diatom mud and asbestos ash for thermal insulation of industrial pipelines.

This article is reproduced from Dacheng County, Hebei Province, Quanhe Thermal Building Materials Factory: http://

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