Effects of nano-SiO2 particles on the mechanical and microstructural properties of ultra-high performance cementitious composites
Source abstract
Abstract
Abstract In this research the effects of nano-SiO 2 particles on the mechanical performance, hydration process and microstructure evolution of ultra-high performance cementitious composites were investigated by different methods. The results showed that the compressive and flexural strength increased with the increase of the nano-SiO 2 content up to 3% and due to agglomeration of nano-SiO 2 particles, the mechanical properties decreased slightly when the nano-SiO 2 content was more than 3%. The hydration process was accelerated by the addition of nano-SiO 2 . The porosity and the average pore diameter decreased with the increase of the nano-SiO 2 content and aging. The microstructure was more homogenous and dense for nano-SiO 2 specimens as compared to the control specimen. All of these improvements could be mainly attributed to the pozzolanic and filler effects of nano-SiO 2 .
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Concrete and Cement Materials Research · Innovative concrete reinforcement materials · Magnesium Oxide Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (24)
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