Analyses and models of the autogenous shrinkage of hardening cement paste. 1: Modeling at macroscopic scale

Journal Article · Sun Oct 01 00:00:00 EDT 1995 · Cement and Concrete Research

DOI:https://doi.org/10.1016/0008-8846(95)00140-8· OSTI ID:116146

Hua, C; Ehrlacher, A ^[1]; Acker, P ^[2]

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1. CERAM-ENPC, Noisy-le-Grand (France)
2. LCPC, Paris (France)

After having studied phenomena linked to hydration and self-desiccation, one notes that capillary depression is the main origin of the autogenous shrinkage of hardening cement paste. Based on this mechanism, modeling at macroscopic scale is undertaken for a commonly used cement paste (CPA 55) with a W/C ratio = 0.42. It consists in introducing a macroscopic stress due to the capillary depression and characterizing the viscoelastic aging behavior of the material. The result is in satisfactory agreement with measurements.

• OSTI ID: 116146
• Journal Information: Cement and Concrete Research, Vol. 25, Issue 7; Other Information: PBD: Oct 1995
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CEMENTS
HARDENING
HYDRATION
SHRINKAGE
MATHEMATICAL MODELS
CAPILLARIES
STRESSES
AGING
DRYING
SURFACE TENSION
COLLOIDS