1.This invention is a form of production process using geopolymer, featuring low pollution and low energy use by mixing foam into the product. The result is that the sound insulation material produced has features of being light weight with excellent engineering characteristics and high soundproof effectiveness.
2.This invention increases the amount of close cells in foamed geopolymer by controlling the amount of foaming and thickness (density 0.7, thickness 10 cm) and creates more repeated reflection of noise within close cells. This is done by passing through the material, to transform sound energy into thermal energy in order to achieve the objective of being soundproof.
3.Transmission loss, TL, is greater than 45dB, with excellent sound insulation effect in the workplace.