| 摘要 |
<p>The method of the invention comprises the steps of: a) employing expanded polystyrene portions of small dimension; b) subjecting said portions to milling until a grain size defining a fine micro-particles powder is obtained; c) placing said powder material into proper containers and immersing them into an aqueous solution comprising a fluidizer and a fire resistant product; d) processing the mixture for about 24 h using a stirrer until the saturation point is reached; e) filtering the obtained solution for draining the excess; f) employing the expanded polystyrene saturated solution obtained in the preceding steps as part of a mortar, using a stirrer and adding the required amount of water; g) pouring the uniform and viscous mixture obtained in the above step into molds giving the definite shape to each plate, into which molds setting and solidification drying is produced. Another object of the invention is a mortar including four parts of the expanded polystyrene saturated solution, three parts plaster, one part sand and one part lime, all these components being mixed with water, using a central stirrer with speed variator until a uniform and viscous mixture is obtained determined by the setting starting time of the incorporated plaster. It is also an object of the invention the fire resistant plate obtained with the method of the invention, which is a rigid plate constituted by the mentioned mortar.</p> |
