| 摘要 |
A system and process for making Expanded Polystyrene (EPS) beads coated with a coating composition and a concrete mixture containing the coated EPS beads are provided. The coating composition removes a restrictive gas layer on EPS bea ds by adhering to the beads and having a suitable porosity to allow the gas to dissipate, and thus enables a strong attraction and permanent adherence of a material, havi ng cementitious properties, such as, for example concrete, to the EPS beads. Th e adherence of the material to EPS beads creates a mixture that can be pre-cas t into building blocks significantly stronger and sturdier structurally than existi ng methods allow for. The beads are specifically made to correct size and density for t he process in pre-expanders, comprising fluid bed dryers, and then treated through the spr ay application of the coating composition.
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