Strength Properties of Nano and Micro Silica Mortar

Abo-alnour, Louay; wahbe, heba; Mehanny, Mona

doi:10.21608/eijest.2020.40548.1008

Cited by 2 publications

(2 citation statements)

References 28 publications

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“…To address this issue, several research efforts have focused on enhancing the cement structure with micro- or nano-level reinforcements. The cement mortars were produced using microsilica [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ] as well as nanosilica [ 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 ]. Both materials were also used together to modify the properties of the mortars, which improved the mechanical properties of the tested mortars [ 2 , 3 , 4 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

“…The cement mortars were produced using microsilica [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ] as well as nanosilica [ 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 ]. Both materials were also used together to modify the properties of the mortars, which improved the mechanical properties of the tested mortars [ 2 , 3 , 4 , 7 ]. The results of the researched cement composites with nanosilica confirmed its acceleration action on C 3 S hydration and formation gel C-S-H, and the modification of composite viscosity improving the tightness of the cement matrix.…”

Section: Introductionmentioning

confidence: 99%

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The Use of Biosilica to Increase the Compressive Strength of Cement Mortar: The Effect of the Mixing Method

et al. 2023

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In this work, the effect of biosilica concentration and two different mixing methods with Portland cement on the compressive strength of cement-based mortars were investigated. The following values of the biosilica concentration of cement weight were investigated։ 2.5, 5, 7.5, and 10 wt.%. The mortar was prepared using the following two biosilica mixing methods: First, biosilica was mixed with cement and appropriate samples were prepared. For the other mixing method, samples were prepared by dissolving biosilica in water using a magnetic stirrer. Compressive tests were carried out on an automatic compression machine with a loading rate of 2.4 kN/s at the age of 7 and 28 days. It is shown that, for all cases, the compressive strength has the maximum value of 10% biosilica concentration. In particular, in the case of the first mixing method, the compressive strength of the specimen over 7 days of curing increased by 30.5%, and by 36.5% for a curing period of 28 days. In the case of the second mixing method, the compressive strength of the specimen over 7 days of curing increased by 23.4%, and by 47.3% for a curing period of 28 days. Additionally, using the first and second mixing methods, the water absorption parameters were reduced by 22% and 34%, respectively. Finally, it is worth noting that the obtained results were intend to provide valuable insights into optimizing biosilica incorporation in cement mortar. With the aim of contributing to the advancement of construction materials, this research delves into the intriguing application of biosilica in cement mortar, emphasizing the significant impact of mixing techniques on the resultant compressive strength.

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