RHEOLOGY AND HYDRATION OF CEMENTITIOUS SLURRIES

被引：0

作者：

Hansen, Will ^{[1
]}

Koenders, Eduardus ^{[2
,3
]}

Liu, Zhichao ^{[1
]}

机构：

[1] Univ Michigan, Ann Arbor, MI 48109 USA

[2] Delft Univ Technol, Delft, Netherlands

[3] Univ Fed Rio de Janeiro, Rio de Janeiro, Brazil

来源：

33RD INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING, 2014, VOL 5 | 2014年

关键词：

D O I：

暂无

中图分类号：

P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

Predicting temperature effects on rheology and hydration of cementitious slurries considered for oil-well cement applications is important as temperature can vary significantly in a bore-well. During the plastic stage the fluid properties (yield and plastic viscosity) are investigated using a rheometer, while isothermal calorimetry is used to evaluate setting characteristics and early-age (0-7 days) heat of hydration. In this paper, experimental results at 3 different temperatures show that a 50/50 blend of Type I portland cement and slag cement at a 0.45 water-cementitious ratio has similar rheological and hydration properties as the reference system (Type I portland cement paste). The rheological properties were found to follow a two-parameter Bingham model, and temperature effects can be accounted for by an Arrhenius model. The effect of temperature on hydration rate can be predicted by a maturity function, which also is based on the Arrhenius rate model, where the apparent activation energy is a measure of temperature sensitivity.

引用

页数：6