COMPARATIVE ANALYSIS OF THE BUTADIENE STYRENE LATEX ADDITIVE IN RECYCLED AGGREGATE CONCRETE
DOI:
https://doi.org/10.47820/recima21.v4i1.2355Keywords:
demonstrate through research, the concrete use of recycledAbstract
This study aims to compare through research the use of recycled aggregate concrete to minimize undue disposal. However, this concrete produced with recycled aggregate presents several problems, such as a lower specific mass, loss of workability and high consumption of cement due to high water absorption, besides presenting higher porosity, compared to the natural aggregate. Due to the mortar adhered to its surface, which promotes the increase of the water/cement ratio, there is a decrease in the specific mass of this concrete produced from recycled aggregate. Thus, the compressive strength of this concrete tends to decline with the increase of the replacement content of the natural aggregate by the recycled aggregate. Another possible solution is the use of latex, which are particle dispersions of organic polymers in water, milky fluids that have white coloration. However, only 5% of these latexs can be used with Portland cement. One of the most used latex for concrete is butadiene styrene latex, which is analyzed in this study. It can decrease the need for adding water to the mortar, slowing the hydration of cement, thereby increasing the tenacity, and improving the workability of concrete. Studies show a maximum increase in compressive strength of 20.95%, using a latex content of 15%, a maximum increase in bending strength of 36.35% for conventional concrete, aiming at increasing the use of recycled concrete aggregate in civil construction.
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