Effect of Grinding on Physico-Mechanical Properties of Ultra-Fine Micro-Silica

2014 ◽  
Vol 7 (4) ◽  
pp. 182-193 ◽  
Author(s):  
B. Karthikeya ◽  
G. Dhinakaran
Keyword(s):  
Mechanical Properties ◽  
Micro Silica

scholarly journals Experimental Study on the Mechanical Properties of Concrete using Micro Silica and Nano Silica - A Step Towards Sustainability

2016 ◽  
Vol V5 (11) ◽  
Author(s):  
Myriam Marie Delcasse ◽  
Nirmith .S. Kumar,Ashwith .S. ◽  
Nikethan .M.S. ◽  
Sunil Kumar .S. Nayak ◽  
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Nano Silica ◽  
Micro Silica

scholarly journals Impact of Micro Silica, Pumice and Perlite on Mechanical Properties of Gypsiferous Soils

2015 ◽  
Vol 19 (72) ◽  
pp. 337-349
Author(s):  
J. Abedi Koupai ◽  
S. Soltanian ◽  
M. Gheysari ◽  
◽  
◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Micro Silica

scholarly journals LABORATORY TESTS ON THE STRENGTHENING OF WET-MIX SHOTCRETE LINING WITH THE USE OF NANOMATERIALS

2021 ◽  
Vol 36 (1) ◽  
pp. 49-59
Author(s):  
Hamid Kalhori ◽  
Raheb Bagherpour ◽  
Mohammad Amir Akhlaghi ◽  
Sayed Mohsen Mirdamadi ◽  
Mehdi Nasiri Sarvi
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Laboratory Tests ◽  
Size Range ◽  
Maximum Increase ◽  
Nano Clay ◽  
Cement Based Materials ◽  
Cast Concrete ◽  
Shotcrete Lining ◽  
Micro Silica

Adding nanomaterials to concrete extends the size range of constituent particles well into nano-scale dimensions, which could help the compacting of particles in cement-based materials. Regarding the differences between shotcrete and cast concrete, in this study, the properties of shotcrete with nano and micro-silica and nano-clay were experimentally studied. The micro and nanomaterials have been added at different percentages (6%, 9%, and 12%) to a shotcrete paste. The comparison was based on the uniaxial compressive strength, flexural strength, tensile strength, and porosity tests of different specimens. The results indicated that the maximum increase in compressive, flexural, and tensile strengths of shotcrete was related to 12% nano-SiO2, while for 12% nano-clay, all of these strengths were decreased at 28 days. The optimum percentage for shotcrete substitution by nano-clay was established to be 6%. Also, the application of the nanomaterials led to a decrease in the water absorption and porosity of shotcrete. Eventually, the results revealed that the improvement of mechanical properties by the introduction of the nanomaterials in shotcrete could be satisfactory.

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