High-strength fireproof and thermal-insulation cement board

Abstract

The invention discloses a high-strength fireproof and thermal-insulation cement board, and belongs to the field of building materials. The high-strength fireproof and thermal-insulation cement board comprises a cement mortar outer layer and a cement mortar inner layer; a cement rock wool layer is arranged between the cement mortar outer layer and the cement mortar inner layer; glass fiber thin felts are paved on surfaces of the upper side and the lower side of the cement rock wool layer respectively; a fireproof concrete layer is compounded or adhered to the cement mortar outer layer; and a heat-reflection thermal-insulation coating coats the outer side of the cement mortar outer layer. Fireproof and thermal-insulation properties of the cement board can be greatly improved, heat conduction can be reduced, and stability of the cement board is guaranteed; and the glass fiber thin felts are paved between the cement rock wool layer and the cement mortar layer, the strength and the structure stability of the cement board can be improved effectively, the cement rock wool layer is protected, and the cement board cannot fall into pieces even if the cement board is used in a high-temperature environment for a long time.

Description

technical field [0001] The invention relates to a cement board, in particular to a high-strength fire-resistant and heat-insulating cement board, which belongs to the field of building materials. Background technique [0002] Cement board is a common building material, which is convenient for construction, energy saving and environmental protection, and has been widely used in the current construction industry. In order to meet the fire protection needs of specific buildings, refractory cement boards are usually installed in the construction process of such buildings. The current refractory cement boards are usually painted with a fireproof layer on the outer layer of ordinary cement boards to achieve fire protection, and their strength and fire resistance. Poor, fast heat conduction; especially in the event of a fire, effective heat isolation cannot be carried out, resulting in excessive heat conduction, and the refractory cement board will be scattered in a short time. In...

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Problems solved by technology

In order to meet the fire protection needs of specific buildings, refractory cement boards are usually installed in the construction process of such buildings. The current refractory cement boards usually use a fireproof layer on the outer layer of ordinary cement boards to achieve fire protection. Its strength and fire resistance Poor, fast heat conduction; especially in the event of a fire, effective heat isolation cannot be carried out, resulting in too fast heat conduction, and the refractory cement board will scatter in a short time

In addition, the existing refractory cement boards cannot carry out normal heat preservation during normal use.

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