Desenvolvimento e caracterização de compósito de matriz cimentícia afim de possibilitar a designação com fibras naturais

Abstract

We currently live in a scenario of development and improvement of products offered on the market, with the aim of increasing energy efficiency without loss of properties and jointly reducing energy consumption and alleviating the damage caused by the extraction of raw materials, with this basis the study to continue to seek the best interaction between Portland cement, commonly sold in the northern region of Brazil, and thus partially replace it with metakaolin to serve as a basis for new applications and studies. Initially we looked for Portland Cement CP IV, designed for highly aggressive environments, in partial replacement with metakaolin, carrying out compatibility tests without the precipitation of any aggregates and together checking the best spreading, thus we looked for new compounds with mixtures ranging from 5 to 25% partial replacement, varying the proportion every 5%. Therefore, some standards were adopted considering that the new formula is a selfcompacting matrix and thus proceed to produce test specimens and after designating mechanical and chemical tests. Where the results were satisfactory, 30.1 Mpa against 19.1 without the addition of metakaolin, it is worth highlighting that the values of 28 days without the addition of clay were in the range of 32 Mpa, in addition to improving the mechanical and chemical behaviors it was able to identify that we can reduce curing time and thus reduce construction time. With the appropriate studies carried out, it is possible to show that a materials engineer can introduce himself into the development of cement matrices through studies and be able to improve even consolidated products on the market with raw materials abundant in the region and thus designate new applications and studies on compatibility with natural fibers