Plaster reinforced with fibers for the preparation of prefabricated panels

Within the construction materials, gypsum and plaster occupy a privileged place, since it is difficult to conceive a building without the presence of one of these two elements. Due to its low cost of obtaining, since they are extracted directly from nature (algez stone) and almost does not need previous treatment unlike cement, it is a material of quick application, easy to handle and aesthetically well considered, characteristics that they become one of the most used resources for the execution of interior finishes, coatings and partitions [1]. For several years now, the behaviour of plasters has been studied by adding fibres, both natural and synthetic, with the aim of improving the mechanical performance that this material offers and mainly for the execution of prefabricated. While until now the use of artificial fibres of polypropylene, glass, etc ... was the most common, due to its good performance and price [2-3], more and more natural fibres are experimented with to improve properties of this type of materials and be more respectful with the environment environment. Natural fibres are the best option for its easy and renewable production. They are materials whose production is not exclusive of the building, but all the parts of the plant are used for different applications. But natural fibres are just one of the different additives that we can find. Regarding the addition of fibres, some authors showed that treated hemp fibre basically achieved mechanical results very similar to plasters with addition of plastic fibres such as polypropylene, which is a clear indication that there are possible and sustainable alternatives to improve the quality of life without harming us in other areas [4]. Other fibres such as coconut, nut husks or similar, have also been used by various authors [5], which after several thermo-mechanical tests, have been able to clarify that its good adhesion to the plaster matrix improves its tenacity and insulation thermal.