Abstract
This paper presents the study on the mechanical and durability
properties of concrete at two different grades containing alccofine at
different percentages of replacement. Investigation on the performance
of alccofine concrete was performed for M25 and M40 grade at 0%, 5%,
10% and 15% replacement levels at 7, 14, 28 and 90 days. The influence
of alccofine on the autogenous shrinkage properties of the alccofine
added concrete was tested for both the grades of concrete in the sealed
and unsealed conditions. The workability property of alccofine added
concrete was examined at various levels of replacement by the slump cone
test. The mechanical properties of the alccofine added concrete were
investigated through estimation of compressive strength and elastic
modulus at 7, 14, 28 and 90 days respectively. Acid attack was conducted
at 28 days and autogenous shrinkage of the alccofine added concrete was
investigated using length comparator at 28 day in the sealed and
unsealed conditions. Results indicate that upon increase in the
percentage of alccofine, the mechanical properties of the concrete
increases at higher ages. Furthermore, the autogenous shrinkage of
concrete tends to increase upon increase in the percentage of the
alccofine at both the grades of concrete.