1. Concrete Improvement

  2. - Aggregate coatings

  3. - Photoactive coatings

Aggregate Coatings:The application of nanosilica as thin films on the aggregate’s surface is an effective way to improve the microstructure of the interface between cement paste and aggregates and by hence the overall mechanical properties of the concrete.  Our most recent work on concrete shows that the use of nanosilica as an aggregate coating can improve the microstructure of the paste in the vicinity of the aggregate, by increasing C-S-H content and reducing porosity.  These changes translate into improvements of the overall mechanical properties of the material such compressive, flexural, and tensile strengths, modulus of elasticity, and durability. Shown: Backscattered electron images of ITZs for control samples (left image) and for a samples with aggregate coated with silica oxide (right image).

Professor Marc A. Anderson



Professor Marc A. Anderson Lab of Sol-Gel Chemistry

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Web Sites of Interest

  1. -UW-Madison

  2. -WARF

  3. -Ur-Water

  4. -Imdea

Mendota Web Camhttp://www.soils.wisc.edu/asig/webcam.htmlhttp://agwx.soils.wisc.edu/uwex_agwx/weather/webcamshapeimage_10_link_0
Imdea Energiahttp://www.energy.imdea.org/http://www.energy.imdea.org/shapeimage_11_link_0
UW - Madisonhttp://www.wisc.edu/http://www.wisc.edu/shapeimage_12_link_0