SOUZA, F. A.; http://lattes.cnpq.br/7125892371901935; SOUZA, Francisco Augusto de.
Resumo:
The accelerated process of modernization in the agricultural industry has
contributed to the signrficant increase in the generation of agricultural residues
that cause damage to the environment. The beneficiation process generates
large quantities of rice husk, these wastes are usually deposited on land or
thrown into streams, causing environmental degradation due to slow
bíodegradation. Its use in construction, such as alternative product, can
contribute to the conservation and preservation of the environment. This work
aims to study the durability of soil-cement with the addition of rice husk. The
tests were carried out usíng cycles of wettíng and drying, to evaluate the
durability of conventional and alternative blocks embedded with rice husk. The
results indicate that increasing the amount of rice husk, raises the value of
water absorption, decreases the compressive strength, increases the loss of
mass and volume change, due to the large volume of voids produced by rice
husk and lack of interaction between the soil-cement and rice husk. Durability
testing by the method of accelerated degradation and mineralogical
characterization tests performed with the alternative blocks of soil-cement
íncorporated with rice husk indicated the composítion of 10% cement plus the
combination of soil and 4% 86% peei rice, ideal for the manufacture of masonry
blocks for construction.