The problem of water supply from the public
distribution network still poses very serious problems in many cities in
developing countries. Intermittent water supply pushes some households to build
underground reinforced concrete tanks for water storage to cope with unwanted
water breaks. This study that relies on the results of a survey of households
in some areas of the city of Brazzaville (Republic of Congo) aims to verify the
importance that users attach to the quality of the works constructed. Indeed,
the reliability of the tanks resulting in their impermeability to the external
environment has a direct impact on the quality of stored water and therefore
the use that is made of water daily. Five areas were selected because of their
soil moisture. By 256 tanks identified, 143 are made of reinforced concrete and
113 in masonry. The coating materials used to seal the walls are preferably the
earthenware tiles (64% of tanks), then the Sika cement (31%). Food painting (5%) is only
rarely used. However, 66% of households are not assured of the potability of the water stored. A significant
number of households (46%) think that the stored water could be contaminated
with noxious substances seeping from the outside through the walls of the
tanks. The issue of sealing of underground water tanks, especially in areas
where the water table is shallow, seems concerned users.
Cite this paper
Malanda, N. and Louzolo-Kimbembe, P. (2014) Survey on Storage of Water for Domestic Use in Underground Reinforced Concrete Tanks: The Case of Brazzaville (Republic of Congo). Open Journal of Civil Engineering
, 13-22. doi: 10.4236/ojce.2014.41002
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