Abstract—Cement, a binding material, is considered the key
ingredient of concrete which is used in construction. Physical
properties of cement indicate the quality of cement. But these
properties change after a certain period, which may lead to
unsuitability of use in construction. In the experiment, physical
properties of cement like normal consistency, setting times,
fineness, soundness and compressive strength have been
determined following ASTM (American Society for Testing
and Materials) & BDS EN (Bangladesh Standards Engineering
Division) standards. Experiment has been carried out for two
types of cement sample- PCC (Portland Composite Cement)
42.5N and OPC (Ordinary Portland Cement) 52.2N, using two
standards on the same day at 0th, 4th & 8th week from the
manufacturing date of cement. Maintaining a controlled
environment of humidity and temperature in the laboratory,
change of physical properties over time has been analyzed
from November, 2016 to January, 2017. The experimental
result shows that the cement remains perfect for use till 8th
week (approximately 2 months) from the manufacturing date
and the values of physical properties remain within the
specified range of ASTM & BDS EN standards; except the
compressive strength of PCC 42.5N, which is lower than that
of BDS EN standard.
Index Terms—ASTM and BDS EN standards, compressive
strength, OPC 52.5N, PCC 42.5N, physical properties.
The authors are with Bangladesh University of Engineering and
Technology (BUET), Dhaka, Bangladesh (e-mail: rzhaque07@gmail.com,
sumitpur065@gmail.com, muktadir.ce11@gmail.com).
[PDF]
Cite: Riazul Haque, Sumit Purkayastha, and Abdul Muktadir Khan, "Variation of Physical Properties of Cement over Time," International Journal of Engineering and Technology vol. 10, no. 6, pp. 434-439, 2018.
