Application of MgO Concrete in RCC Dams

ABOUT THE INTERNATIONAL CONCRETE ABSTRACTS PORTAL

  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal

  


Title: Application of MgO Concrete in RCC Dams

Author(s): Chongjiang Du

Publication: Concrete International

Volume: 41

Issue: 7

Appears on pages(s): 41-48

Keywords: construction, temperature, volume, expansion

Date: 7/1/2019

Abstract:
The article discusses the use of magnesium oxide-based shrinkage-compensating concrete (MgO concrete) in construction of roller-compacted concrete (RCC) dams. The delayed autogenous expansion of MgO concrete roughly matches the shrinking process of dam mass concrete as its temperature drops and helps to prevent thermal cracking. Using MgO concrete in RCC dams can result in simplification of temperature control measures as well as shorten the construction period.