The pozzolanic effect of the sol-gel silica additive on the structure andcompressive strength of Portland cement paste of high initial resistance and reactive powder concrete, with low factor water/cement, was analyzed. ...

The use of mineral additives, such as active silica, leads to improvements in the properties of cementitious materials, mainly related to the compressive strength of the paste. With additives particles in nanometer scale, ...

Active pozzolanic admixtures are added in concrete to improve some of its properties, such as compressive strength and density. Due to its composition and structure, silica synthetized by sol-gel technique has a great ...

In this work we report some aspects of the chemistry involved in the preparation of modified silicon oxide by the sol-gel process. Europium III compounds were used as luminescent probe. An organic-inorganic hybrid was ...

Some aspects of the chemistry involved in the preparation and characterization of functionalized silicon oxide by sol-gel method are considered in this work. The synthesis was performed with different silicon alcoxide ...

Some aspects of the chemistry involved in the preparation and characterization of functionalized silicon oxide by sol-gel method are considered in this work. The synthesis was performed with different silicon alcoxide ...

For the design of antibacterial materials comprising hybrid silica-containing plant oils capable of performing a controlled release of essential oil components, tests of lemongrass, citronella, basil, rosemary, eucalyptus, ...

For the design of antibacterial materials comprising hybrid silica-containing plant oils capable of performing a controlled release of essential oil components, tests of lemongrass, citronella, basil, rosemary, eucalyptus, ...