Volume 18, Issue 1 (Spring 2024)
2024, 18(1): 45-70 |
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Soleimani Z, Rahimi E, Khairy H. Evaluation of the effectiveness of adding nanominerals to improve the engineering characteristics of concrete. Journal of Engineering Geology 2024; 18 (1) :45-70
URL: http://jeg.khu.ac.ir/article-1-3096-en.html
URL: http://jeg.khu.ac.ir/article-1-3096-en.html
1- Damghan University
2- Shiraz University ,rahimi_e@shirazu.ac.ir
2- Shiraz University ,
Abstract: (2040 Views)
This article deals with the strength evaluation of concrete obtained by adding different percentages of three types of nanominerals, including nanocalcite, nanobarite and nanofluorite. To measure the velocity of ultrasonic waves and compressive strength of concrete, 15×15×15 cm cube samples were prepared with 7-, 28- and 90-days curing. 10 types of mix designs with 0.39 water-cement ratio, including the control sample (without additives) and the samples with 0.5, 0.75 and 1% nanominerals were subjected to the mentioned tests. The results showed that the addition of nanocalcite, nanofluorite, and nanobarite with values of 0.75%, 1%, and 0.75%, respectively, have the highest compressive strength compared to the control sample. Although these do not have pozzolanic properties, they play a positive role in increasing the concrete strength by filling concrete voids and due to their high specific gravity, increasing concrete density.
Keywords: compressive strength of concete, ultrasonic pulse velocity, nanomineral, nanobarite, nanoflorite, nanocalcite.
Type of Study: Original Research |
Subject:
Geotecnic
Received: 2024/03/17 | Accepted: 2024/05/19 | Published: 2024/07/5
Received: 2024/03/17 | Accepted: 2024/05/19 | Published: 2024/07/5
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