Abstract:
The concrete used for the structures for the
storage of liquids where the exposure conditions for
concrete are within the specified limits. Such structures
include those retaining water or sewage, public swimming
pools, etc. This concrete generally called as the concrete for
water retaining structures. In order to construct durable
and high quality concrete components, the transportation,
placing and compacting of fresh concrete should be carried
out with care, make sure that all the aspects regarding
that can affect the quality of the concrete . In this study
of “Study on the concrete quality analysis for water
retaining structures in Monaragala”, the Kumbukkana
water treatment plant under the Monaragala- Buttala
integrated water supply project was selected. It is recently
completed water supply project in Monaragala district.
The scope of this study to analysis the quality of concrete
for water retaining structures used in the Kumbukkana
water treatment plant by used the statistical quality
controlled charts and statistical tools by analysed tested
sample results of fresh and hardened concrete. The concrete
samples were prepared at the site and laboratory test were
carried out at project laboratory. Statistically analysed
the test results to quality analysis for concrete for water
retaining structures by used statistical package Minitab
16 version. This study shows that based on the laboratory
results and statistical analysis, According to National
Water Supply and Drainage Boards “Specification for
the Civil Engineering works” , mix design and statistical
quality control technique Xbar Chart results, it can be
conclude that the concrete for water retaining structure
which tested samples were good in quality.
