Concrete and light mortars with thermal and acoustic insulating properties obtained by the addition of rigid foam polyurethane

摘要

Concrete and light mortars with thermal and acoustic insulating properties obtained by the addition of rigid foam polyurethane.The present invention relates to the preparation of concrete and mortar with thermal and acoustic insulation properties, and mechanical properties suitable for use in various applications such as structural concrete construction, concrete blocks of sealing, C Oncretos for sidewalks, mass of the fence, as cast and plaster.The mortar and concrete of this invention are prepared by partial replacement of sand for rigid foam polyurethane ground in proportions according to its application. The production of lighter mortars and concrete through the partial replacement of sand foam p U post consumed is in technology of materials, concrete technology, environmental engineering and civil.The use of rigid foam polyurethane (PU) post consumed in the production chain prevents its final disposal in landfills special since this material is toxic if incinerated and the partial replacement of sand of mortars and concrete by the waste of the Pu ground contributes to the flights were reduced. Will the consumption of sand.