Skip to main content Accessibility help
×
Home

Modification of the Physical Properties of Natural and Artificial Adobe by Chemical Consolidation

  • Richard L. Coffman (a1)

Abstract

The use of commercially available chemical consolidants (hexamethylene diisocyanate (HDI) - derived polymers and silane esters) has been shown to increase the compressive strength of adobe and other natural building materials. Laboratory and field testing of chemically-treated adobe and sand-clay mixtures have also revealed an enhanced resistance to disintegration by water.

In HDI-treated materials this resistance to disintegration is attained without a significant loss of porosity. Because porosity is not lost and the adobe can still transmit water, the uptake of water by capillary rise is less destructive than for an adobe whose surface is sealed against moisture penetration.

Copyright

References

Hide All
[1] Agnew, N.H., “Adobe Preservation”, Report on a Three Month Research Prolect at the Getty Conservation Institute, (1987) 103 P.
[2] Coffman, R.L., Agnew, N.H., Geis, M., and Selwitz, C., “The Effects of Hexamethylene Diisocyanate-Derived Polymers on the 207 Physical Properties of Selected Natural Clays”, (Unpublished, in review).
(3) Theng, B.K.G., Formation and Properties of Clay-Polymer Complexes, (Elsevier, Amsterdam, 1979) p.123154
[4] Sposito, G., (Private communication, 1989)

Modification of the Physical Properties of Natural and Artificial Adobe by Chemical Consolidation

  • Richard L. Coffman (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed