Combined effects of nanoAl2O3 and rice husk ash on self-compacting mortar properties

Bahareh Mehdizadeh Miayandehi¹ Moshir Shakeri Majd² Behzad Golbarg³ Ali Tahbaz⁴ Seyed Mehdi Saeidi⁵

1) Head of Department of Civil Engineering, University of Borhan Niroye Shomal, Rasht, Iran Email:
2) Department of Civil Engineering, Islmic Azad University of lahijan, Iran
3) Department of Civil Engineering, University of Borhan Niroye Shomal, Rasht, Iran Email:
4) Department of Civil Engineering, University of Noshirvani, Babol, Iran Email:
5) Department of Civil Engineering, Islmic Azad University of Bandaranzali, Iran Email:

IOI Code : XYCC-ABFBB
Publication : International Conference on Science and Engineering(icesconf.com)
Abstract :
    Abstract This article presents a comprehensive evaluation of the performance of self-compacting mortar (SCM) incorporating Al2O3 nanoparticles (NA) and rice husk ash (RHA). The durability performance was assessed by means of water absorption, electrical resistivity and rapid chloride permeability tests (RCPT). Also the SEM photos of samples were presented to indicate the microstructure of specimens. The results showed that although the SCMs containing NA increased content show good durability and mechanical performance (that in many tests except in water absorption test the results met and exceeded that of the control specimen), the improvement in results after addition of RHA in SCMs is undeniable. The results also showed that specimen with 30% rice husk ash and 3% nano-Al2O3 (30RHA3NA) for Portland cement replacement indicated a high degree of satisfaction for most parameters such as mechanical strength and durability properties.

Keywords : self compacting mortar al2o3 nanoparticles rice husk ash compressive strength electrical resistivity