A GENERALIZED SCALE FACTOR MODEL FOR PORTLAND CEMENT HYDRATION

Author(s): Xueyu Pang
Book Title: RILEM International Symposium on Concrete Modelling - CONMOD 2014
Editor: Kefei Li, Peiyu Yan and Rongwei Yang
ISBN: 978-2-35158-139-1
e-ISBN: 978-2-35158-140-7
Publisher: RILEM Publications SARL
Publication year: 2015
Pages: 18-26
Total Pages: 9
Language: English

Abstract: A scale factor model originally proposed to simulate the effect of curing temperature and pressure on cement hydration kinetics is further developed into a generalized format in this study. The generalized scale factor model can be used to simulate several influencing factors on cement hydration kinetics in addition to curing condition, such as mixing intensity and the addition of chloride admixtures. Moreover, the model can be used to simulate the time evolution of many different properties of cement-based materials that are closely related to hydration kinetics, such as phase content, viscosity (before setting), and ultrasonic transmission velocity. Finally, when combined with the maturity method, the generalized scale factor model can be used to simulate the property evolution of cement-based materials not only at isothermal and isobaric conditions, but also at variable temperature and pressure conditions.

Online publication: 2015
Publication Type: full_text
Public price (Euros): 0.00