Modification And Application Of Foam Concrete Construction Insulation Board

As a discarded foam concrete,environmental protection,energy saving,inexpensive and has a low density,high strength,waterproof and insulation good new building energy-saving materials,more and more awareness and attention to the whole society,and in all fields widely used.Lightweight foam concrete grain,its lightweight foam concrete grain light weight,good insulation,high strength,research and use of more and more attention to their country.This paper aims to the company's original product formulations modified adjusted by changing the material mix,the amount of additives to improve the early strength of concrete foam insulation board products,end-of-water resistance,effectively solve the foam concrete insulation board products appear retraction and cracking.Combined with the practical application of enterprise engineering problems that occur during the analysis,resolve,and then summed up the concrete foam insulation board application technology.So lightweight foam concrete grain by changing the amount of its raw materials can hope to better improve the compressive strength,lower water absorption and reduce its density.Two experimental preparation of foam concrete insulation panels that foam insulation board and foam concrete grain concrete insulation board.By cementitious materials,additives,foaming agents and other materials prepared in accordance with the experimental procedure of foam concrete insulation board.The effects of different material amount of its compressive strength.Water absorption,density,thermal conductivity effects.Adding calcium stearate and reduce water absorption;incorporation of fiber to enhance toughness;individually change the content of the basic raw material to produce different samples and horizontal contrast,to select the optimal sample as a basis for further changes in the content of other raw materials;finally preparing a lightweight,high strength,good thermal insulation foam insulation board grain concrete.Were investigated cement,fly ash,impact polystyrene particles of foam tablets concrete strength,water absorption,density,thermal conductivity.Concluded:Determine the methods to improve early strength of foam concrete insulation board,namely to reduce water consumption and adding desulfurization gypsum.When the water consumption is 73%of cement dosage,control the water temperature 30?,adding 13.3%desulfurization gypsum cement dosage can improve the early strength of foam concrete insulation board.In the foam concrete spraying organic silicon surface of insulation board products abhorred superplasticizer can improve the hydrophobic and improve the product hardness.Increase the dosage of fiber,the fiber to the cement dosage of 0.3%,can improve its crack resistance,effectively reduce the rate of retraction.Mixed with fly ash to improve light bubble grain of the compressive strength of concrete,when 15%dosage of fly ash,the compressive strength of concrete reaches the highest;Adding polystyrene particles can reduce the bibulous rate of insulation board,when polystyrene particle content is 5.83%,light bubble grain concrete insulation board bibulous rate reached the lowest;Sulphur aluminate cement accounted for 25%of the total dosage of cement,can make the polystyrene particles dispersed in the slurry,make the volume of bubble grain of concrete increases,reduce the density of bubble grain concrete insulation board.To solve the problems arising from the engineering examples,foam concrete insulation board,summarizes its engineering application technology.