Modeling of early age compressive strength of cement paste based on contact area of hydrating cement

Title: Modeling of early age compressive strength of cement paste based on contact area of hydrating cement
Author(s): Guang Ye, K. van Breugel, Xueyan Liu
Paper category : conference
Book title: 2nd International RILEM Symposium on Advances in Concrete through Science and Engineering
Editor(s): J. Marchand, B. Bissonnette, R. Gagné, M. Jolin and F. Paradis
Print-ISBN: 2-35158-003-6
e-ISBN: 2351580028
Publisher: RILEM Publications SARL
Publication year: 2006
Nb references: 6
Language: English

Abstract: In this contribution, a numerical concept of contact area is introduced to describe the interconnectivity of hydrating cement products. The intrinsic relationship between compressive strength and the contact area of cement paste are explored. A theoretical model is proposed based on the concept of contact area in order to predict the compressive strength of cement paste.
With the help of cement hydration model HYMOSTRUC3D, three cement pastes with w/c ratio 0.35, 0.50 and 0.60 are simulated. The predicted compressive strength is compared with experiments and the results are discussed. A good agreement is found between simulation and experiment, which leads to the conclusion that this model shows a good capacity in predicting the compressive strenght of cement paste in the early age.

Online publication: 2006-08-02
Classification: 3.1 Theme 1: Numerical Models: from Microstructure to Transport Properties and Durability
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2351580028.047