Innovative Application of Standard Sand as a Functional Carrier for Nano-Silica in Cement.

ABSTRACT: Nano-silica (NS) is used to enhance the mechanical and durability properties of cementitious materials; however, its frequent tendency to agglomerate limits its effectiveness and uniform distribution within the cement matrix. The main goal of this study was to improve NS dispersion and therefore to improve the properties of the concrete by coating NS onto standard sand particles (sand@NS) using the Stöber method, creating a composite material that acts as a filler, nucleation site, and highly reactive pozzolanic agent. The resulting sand@NS was incorporated into cement mixtures, and its compressive strength was measured after 3, 7, and 28 days of curing. In addition, water absorption and microstructural density were also evaluated. Comparative results showed that sand@NS significantly enha

SUBMITTER: Shalit M 

PROVIDER: S-EPMC12471318 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature