Spray-Dry Agglomerated Nanoparticles in Ordinary Portland Cement Matrix

  • Vehmas T
  • Kanerva U
  • Holt E
  • 7


    Mendeley users who have this article in their library.
  • N/A


    Citations of this article.


Nano-sized particles have got a focus of great interest for the past decade. These ultrafine particles can have an effect in multiple ways on concrete technology. Although most of the effects of nano-particles are desired, a huge surface area introduced by nanoparticles also incorporates negative effects, such as loss of workability and safety aspects. Agglomeration of nano-sized particles by spray-drying is one potential method to overcome the negative effects. In this study, ultra-fine material was dispersed and agglomerated successfully. Agglomerate structure was analyzed and performance was evaluated with mortar samples. Agglomerated nano-sized material had micron-sized inner porosity, which enabled water penetration into the agglomerates. In water exposure, agglomerates did not dissolve although some of binder glue and dispersing agent leaked out. Wa-ter penetration and organic material leaking enabled high reactivity and workability of the ag-glomerated nanoparticles. In spite of the high reactivity of agglomerated nanoparticles, slightly lower final compression strengths were observed with agglomerated ultrafine particles. The re-sults of this study can be used in concrete technology when further developing admixture tech-nologies and recipe designs. The negative side-effects of the agglomerated nanoparticles can be overcome and accounted for within application areas.

Author-supplied keywords

  • Concrete
  • Nanoparticles
  • Spray-Drying

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • Tapio Vehmas

  • Ulla Kanerva

  • Erika Holt

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free