Foram feitos caracterizações estruturais com ensaios em corpo de prova, medidas granulométricas do resíduo, docimento, do pó de brita e da areia, e a medida da capacidade de absorção de água em blocos de cimento (chamados de ecoblocos) com adição de 5%, 10%, 15%, 25% e 35% de resíduo de pneu, obtido por meio de raspagem de pneus automotivos inservíveis. A geometria de confecção dos ecoblocos foi projetada para serem encaixados no empilhamento vertical, requerendo o mínimo de massa de cimento para a confecção de parede de vedação. = Experiment for structural characterizations were made in test body as well as measurements of the capacity of water absorption in cement blocks (called ecoblocos) with the addition of 5%, 10%, 15%, 25% and 35% of tire residue.These additions are obtained by means of worn out tire’s scratching. The ecoblocos´ design was projected for them to be inserted in the vertical piling up, requesting the minimum of mortar for the construction of walls.

ABSTRACT: The water supply for human use in Brazilian rural areas of the Cerrado region depends greatly on local natural water resources. In the community of smallholder farmers, know as Agrovila Mambaí, located in Mambaí, GO, has been undergoing this type of situation. The objective of this work has been developed aiming at presenting technical alternatives to improve the current water system capacity to supply water the referred smallholder farmers. In older to support this analysis, there were used nearby hydrological data and digital map of the area to estimate the availability of water resources. Besides this, it was carried out local inventory to evaluate watershed conditions and the alternatives for improving the current water supply systems to increase the water availability for each smallholder farmer. It was concluded that it is feasible to increase the water supply for drinking usage by increasing the capacity of a local natural spring; installing a second piston-type water-pump driven by the installed water wheel; or an electrical motor-driven water pump to feed the existing elevated reservoir which currently is connected to water distribution system of the community.