Composite foamed cement insulation board and production technology thereof

Abstract

The invention relates to an insulation board and a production technology thereof, in particular to a composite foamed cement insulation board and a production technology thereof. The insulation board consists of the following components in percentage by weight: 55 to 60 percent of No. 525 cement, 30 to 35 percent of fly ash, 0.4 to 0.7 percent of stable master batch, 0.015 to 0.020 percent of lithium carbonate, 0.3 to 0.5 percent of fiber, 3 to 5 percent of foam stabilizer, and 5 to 8 percent of hydrogen peroxide. The production technology comprises the following steps of: (1) stirring the components in a stirring machine in a ratio till the components are stirred uniformly; (2) adding a foaming agent into the uniformly stirred mixture, stirring uniformly, pouring the mixture into a mold, and performing natural foaming; (3) sizing the foamed cement board passing foaming for 6 to 12 hours; (4) shifting the sized foamed cement board out of the mold; (5) after the foamed cement board is shifted out of the mold, performing air drying maintenance on the foamed cement board; and (6) after the foamed cement board is in accordance with the cutting conditions, cutting the foamed cement board into a finished product by using a cutting machine, and packing. The insulation board has the advantages of excellent fireproof and waterproof performance, insulation performance, stability, environment friendliness, energy conservation, heat insulation, sound insulation, light weight and compression resistance.

Description

technical field

[0001] The invention relates to a thermal insulation board and its production process, in particular to a composite foamed cement thermal insulation board and its production process. Background technique

[0002] In recent years, fires of building external insulation materials have occurred in the new CCTV site and Shanghai teachers' apartment, causing serious casualties and property losses. Building flammable and combustible external insulation materials have become a new type of fire hazard. For this reason, the relevant documents issued by the Ministry of Public Security clearly require that the building's external thermal insulation materials must be used with Class A fireproof materials; and that the thermal insulation system of the external wall has a certain strength and sufficient stability so that it can have sufficient service life and reduce the possibility of secondary construction in the future. And though some existing thermal insulation boards...

Examples

Embodiment 1

[0019] This embodiment is a composite foamed cement insulation board, which consists of the following components by weight percentage: 525# cement: 56%, coal ash: 30%, stable masterbatch: 0.68%, lithium carbonate: 0.02%, fiber: 0.3%, foam stabilizer: 5%, hydrogen peroxide: 8%. Stable masterbatch weight percentage components: lithium carbide 10%, calcium stearate 90%. The fibers are synthetic fibers, rayon fibers or inorganic fibers.

[0020] The production process of the composite foamed cement insulation board in this embodiment is carried out according to the following steps: (1) place each component in a mixer according to the proportion and stir until it is evenly stirred; (2) add a foaming agent to the evenly stirred mixture, and stir evenly Finally, the mixture is poured into the mold and naturally foamed; (3) the foamed cement board after foaming is qualified for another 6 hours; (4) the foamed cement board that is shaped is removed from the mold; After the foamed cem...

Embodiment 2

[0022] This embodiment is a composite foamed cement insulation board, which consists of the following components by weight percentage: 525# cement: 60%, coal ash: 31%, stable masterbatch: 0.5%, lithium carbonate: 0.015%, fiber: 0.485%, foam stabilizer: 3%, hydrogen peroxide: 5%. Stable masterbatch weight percentage components: lithium carbide 30%, calcium stearate 70%. The fibers are synthetic fibers, rayon fibers or inorganic fibers.

[0023] The production process of the composite foamed cement insulation board in this embodiment is carried out according to the following steps: (1) place each component in a mixer according to the proportion and stir until it is evenly stirred; (2) add a foaming agent to the evenly stirred mixture, and stir evenly Finally, the mixture is poured into the mold and naturally foamed; (3) the foamed cement board after foaming is qualified for another 7 hours; (4) the foamed cement board that is shaped is removed from the mold; After the foamed c...

Embodiment 3

[0025] This embodiment is a composite foamed cement insulation board, which consists of the following components by weight percentage: 525# cement: 55%, coal ash: 34%, stable masterbatch: 0.4%, lithium carbonate: 0.018%, fiber: 0.382%, foam stabilizer: 4.2%, hydrogen peroxide: 6%. Stable masterbatch weight percentage components: lithium carbide 50%, calcium stearate 50%. The fibers are synthetic fibers, rayon fibers or inorganic fibers.

[0026] The production process of the composite foamed cement insulation board in this embodiment is carried out according to the following steps: (1) place each component in a mixer according to the proportion and stir until it is evenly stirred; (2) add a foaming agent to the evenly stirred mixture, and stir evenly Finally, the mixture is poured into the mold and naturally foamed; (3) the foamed cement board after foaming is qualified for another 8 hours; (4) the foamed cement board that is shaped is removed from the mold; After the foamed...

technical field

[0001] The invention relates to a thermal insulation board and its production process, in particular to a composite foamed cement thermal insulation board and its production process. Background technique

[0002] In recent years, fires of building external insulation materials have occurred in the new CCTV site and Shanghai teachers' apartment, causing serious casualties and property losses. Building flammable and combustible external insulation materials have become a new type of fire hazard. For this reason, the relevant documents issued by the Ministry of Public Security clearly require that the building's external thermal insulation materials must be used with Class A fireproof materials; and that the thermal insulation system of the external wall has a certain strength and sufficient stability so that it can have sufficient service life and reduce the possibility of secondary construction in the future. And though some existing thermal insulation boards...

Examples

Embodiment 1

[0019] This embodiment is a composite foamed cement insulation board, which consists of the following components by weight percentage: 525# cement: 56%, coal ash: 30%, stable masterbatch: 0.68%, lithium carbonate: 0.02%, fiber: 0.3%, foam stabilizer: 5%, hydrogen peroxide: 8%. Stable masterbatch weight percentage components: lithium carbide 10%, calcium stearate 90%. The fibers are synthetic fibers, rayon fibers or inorganic fibers.

[0020] The production process of the composite foamed cement insulation board in this embodiment is carried out according to the following steps: (1) place each component in a mixer according to the proportion and stir until it is evenly stirred; (2) add a foaming agent to the evenly stirred mixture, and stir evenly Finally, the mixture is poured into the mold and naturally foamed; (3) the foamed cement board after foaming is qualified for another 6 hours; (4) the foamed cement board that is shaped is removed from the mold; After the foamed cem...

Embodiment 2

[0022] This embodiment is a composite foamed cement insulation board, which consists of the following components by weight percentage: 525# cement: 60%, coal ash: 31%, stable masterbatch: 0.5%, lithium carbonate: 0.015%, fiber: 0.485%, foam stabilizer: 3%, hydrogen peroxide: 5%. Stable masterbatch weight percentage components: lithium carbide 30%, calcium stearate 70%. The fibers are synthetic fibers, rayon fibers or inorganic fibers.

[0023] The production process of the composite foamed cement insulation board in this embodiment is carried out according to the following steps: (1) place each component in a mixer according to the proportion and stir until it is evenly stirred; (2) add a foaming agent to the evenly stirred mixture, and stir evenly Finally, the mixture is poured into the mold and naturally foamed; (3) the foamed cement board after foaming is qualified for another 7 hours; (4) the foamed cement board that is shaped is removed from the mold; After the foamed c...

Embodiment 3

[0025] This embodiment is a composite foamed cement insulation board, which consists of the following components by weight percentage: 525# cement: 55%, coal ash: 34%, stable masterbatch: 0.4%, lithium carbonate: 0.018%, fiber: 0.382%, foam stabilizer: 4.2%, hydrogen peroxide: 6%. Stable masterbatch weight percentage components: lithium carbide 50%, calcium stearate 50%. The fibers are synthetic fibers, rayon fibers or inorganic fibers.

[0026] The production process of the composite foamed cement insulation board in this embodiment is carried out according to the following steps: (1) place each component in a mixer according to the proportion and stir until it is evenly stirred; (2) add a foaming agent to the evenly stirred mixture, and stir evenly Finally, the mixture is poured into the mold and naturally foamed; (3) the foamed cement board after foaming is qualified for another 8 hours; (4) the foamed cement board that is shaped is removed from the mold; After the foamed...