Poured Earth Stabilized with Mineral Wool

Abstract

The stabilizers used in construction with raw earth are very varied, especially in masonry. The construction with earth implies sustainability, therefore under this principle the stabilizers must be chosen. The poured earth, like the rammed earth, are monolithic walls that require formwork or falsework. The objective of this work is to demonstrate if the mineral wool used in the mixture of the poured earth improves the characteristics of the monolithic wall. For this purpose, different percentages of fiber added to the soil used for the dumped earth were analyzed, soil extracted from the bank of material called Champayan, which has clay, silt, sand and stone aggregates, doing tests of resistance to compression, water absorption and thermal transmittance. The purpose of this research was to answer the question: Does the poured earth mix improve its physicochemical properties when mineral wool is added as a stabilizer? The methodology of the experimental part, the soil from the Champayan bank was characterized; Subsequently, three batches of three samples each were made, containing different percentages of mineral fiber. The specimens were subjected to compression, water absorption and thermal transmittance tests. The samples were subjected to three different types of actions, namely compression test, moisture absorption and thermal conduction. In the compression tests, the results of the three samples ranged from 0.678 to 0.923 MPa. In the absorption test, the moisture percentages by weight varied in a range from 12.04 to 13.51%. In the tests carried out to measure its thermal behavior, the range of the thermal conductivity factor was from 0.7407 to 0.8725 W/m*K.