The Open Civil Engineering Journal

ISSN: 1874-1495 ― Volume 13, 2019

Evaluation of Nano-Silica Modified ECC Based on Ultrasonic Pulse Velocity and Rebound Hammer

Bashar S. Mohammed1, *, Zubair Imam Syed2, Veerendrakumar Khed1, Muthanna Saad Qasim1
1 Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS, Perak, Malaysia
2 Department of Civil Engineering, Abu Dhabi University, Abu Dhabi, United Arab Emirates



Engineered cementitious composite (ECC) has gained attention among researchers due to its superior tensile properties. To improve its modulus elasticity, due to absence of coarse aggregate, nano-silica (NS) has been added to ECC mixture.


To facilitate the usage of the NS-ECC in the construction industry, using nondestructive tests such as rebound hammer (RH) and ultrasonic pulse velocity (UPV) to predict the compressive strength of NS-ECC is worthwhile. Twenty mixtures with two variables which are four PVA% (0.5, 1, 1.5 and 2) and five NS% (0, 1, 2, 3 and 4) have been proportioned, cast, cured and tested using RH, UPV and then crushed to determine the compressive strength at age of 28 days.

Results and Conclusion:

Response surface methodology (RSM) has been performed to develop models for predicting the compressive strength of NS-ECC utilizing results from RH and UPV. It has been established that the newly developed models are significant with values of “Prob > F” less than 0.05 and also have variance less than 0.2. Therefore, these models can be used to predict the compressive strength of NS-ECC using rebound hammer or/and ultra-pulse velocity.

Keywords: Nano-silica, ECC, UPV, RH, RSM, HPFRCCS.

Article Information

Identifiers and Pagination:

Year: 2017
Volume: 11
First Page: 638
Last Page: 649
Publisher Id: TOCIEJ-11-638
DOI: 10.2174/1874149501711010638

Article History:

Received Date: 12/04/2017
Revision Received Date: 21/06/2017
Acceptance Date: 10/07/2017
Electronic publication date: 09/08/2017
Collection year: 2017

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© 2017 Mohammed et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS, Perak, Malaysia; Tel: +605-3687305;


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