DEFORMATION PROPERTIES OF ENGINEERED CEMENTITIOUS COMPOSITE (ECC) WITH NANO SILICA

In this study, the deformation properties of Engineered Cementitious Composite (ECC)
with Nano-Silica (nS) are tested based on four deformation properties with two different
tests conducted, all the test conducted are based on the standard testing method
following the American Standard Testing Method (ASTM). For this purposed, Initially
20 mixture of ECC were prepared by varying the percentage of Polyvinyl Alcohol
(PVA) Fiber (0.5%-2%) and nS (0%-4%). From each mixture, 3 cylinders (100 mm x
200 mm), and 3 prisms (25 mm x 25 mm x 285 mm) are prepared. These samples are
then cured in curing tank for 28 days before testing were conducted. The first test were
conducted to monitor the shrinking properties of ECC after 28-days samples are cured
and the second test were conducted to analyze the ECC strain behavior under applied
compressive load. The ECC mixture consist of Fly Ash, Ordinary Portland Cement
(OPC), Sand, Water, PVA Fiber and also Super Plasticizer (SP), a percentage of nS is
added into the ECC mixture to investigate the effect of the nano size particle material in
the ECC mixture towards the deformation properties. It is expected that at some amount
of nS will be ideal to fill the pore spaces in the ECC mixture and improves the
performance of materials of ECC, thus result in significant improvement in the
deformation parameters.