Influence of Monomolecular Film Evaporation Retardant on the Plastic Cracking and its Application on Concrete
- DOI
- 10.2991/iccet-15.2015.243How to use a DOI?
- Keywords
- Monomolecular, Water Evaporation, Plastic Cracking, Application
- Abstract
The early age water loss of cement based materials can cause plastic shrinkage cracking and crusting and peeling which will damage the application property and durability of concrete. Through emulsion system of small molecule super amphiphilic compound, stable and compact monomolecular film evaporation retardant on the surface of concrete is being prepared, which will inhibit the water evaporation of plastic concrete and then restrain plastic shrinkage cracking. In a harsh evaporation environment, the inhibition ratio of evaporation retardant was tested, which displays 24.1% and 59.6% inhibition ratio separately when sprayed once and twice while water nearly makes no difference to the evaporation rate. Surface appearance of cement paste and concrete applied evaporation retardant shows no crusting and peeling phenomenon. Evaporation retardant can inhibit the plastic shrinkage cracking of concrete and will reduce the total cracking area per unit area more than an order of magnitude. Evaporation retardant has been successfully applied in many key projects in China where the evaporation is high and makes a great contribution to the durability of concrete structures.
- Copyright
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Wei Wang AU - Wen Xu AU - Yujiang Wang PY - 2015/11 DA - 2015/11 TI - Influence of Monomolecular Film Evaporation Retardant on the Plastic Cracking and its Application on Concrete BT - Proceedings of the 5th International Conference on Civil Engineering and Transportation 2015 PB - Atlantis Press SP - 1290 EP - 1296 SN - 2352-5401 UR - https://doi.org/10.2991/iccet-15.2015.243 DO - 10.2991/iccet-15.2015.243 ID - Wang2015/11 ER -