Hostname: page-component-586b7cd67f-dlnhk Total loading time: 0 Render date: 2024-11-25T17:53:15.865Z Has data issue: false hasContentIssue false
  • English
  • Français

Degradation and Material Transport for Thin Plates of Cement Pastes

Published online by Cambridge University Press:  26 February 2011

Karen Nilsson  and
K. Brodersen
Karen Nilsson
Affiliation:
Chemistry Department, Risø National Laboratory, DK-4000 Roskilde, Denmark.
K. Brodersen
Affiliation:
Chemistry Department, Risø National Laboratory, DK-4000 Roskilde, Denmark.
Get access

Abstract

A ‘thin-plate’ technique, which is well suited for laboratory studies on cements, has been used in equilibrium experiments aimed at studying material transport between concretes of different composition. The extent of material transport is small, but there appear to be a movement of calcium towards thin plates containing excess silica fume, where supposedly the pozzolanic reaction takes place, an aspect which can be of interest for crack-healing of cements. A model concerned with crack healing of cement is discussed. Preliminary data have been obtained in a study where thin plates have been employed to investigate the effect of leaching on the microstructure of cements using the technique of Small Angle Neutron Scattering (SANS).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 127: Symposium BERLIN – Scientific Basis for Nuclear Waste Management XII , 1988 , 469
Copyright
Copyright © Materials Research Society 1989

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1] Brodersen, K., Development of waste unit for use in shallow land burial. Final report, EUR 10821 EN 1986 Google Scholar
[2] Allen, A.J., Oberthur, R.C., Pearson, D., Shofield, P., and Wilding, C. R., The developement of the fine porosity and the gel structure of hydrating cement systems. AERE R 12187 Harwell 1986 Google Scholar
[3] Freltoft, T., Kjems, J., Riso SANS Facility User Guide, Risø-M-2450 (1985)Google Scholar
[4] Freltoft, T., Neutron study of aggregate structure and kinetics, Risø-M-2570 (1986)Google Scholar
[5] Brodersen, K., Nilsson, K., Mechanisms and interaction phenomena influencing release in low- and medium-level waste disposal systems. Progress report January-June 1987 for CEC contract FI 1 W-0089-DK-(B). Riso 1987 Google Scholar
[6] Brodersen, K., Nilsson, K., Mechanisms and interaction phenomena influencing release in low- and medium-level waste disposal systems. Annual report 1987 for CEC contract FI 1 W-0089-DK-(B). Riso 1988.Google Scholar