Viscosity prediction of fresh cement asphalt emulsion pastes

被引：0
作者：
Jian Ouyang
Yiqiu Tan
David J. Corr
Surendra P. Shah
机构：
[1] Dalian University of Technology,School of Transportation and Logistics
[2] Harbin Institute of Technology,School of Transportation Science and Engineering
[3] Northwestern University,Center for Advanced Cement Based Materials
来源：
Materials and Structures | 2017年 / 50卷
关键词：
CA paste; Rheology; Viscosity; Maximum particle packing density;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Cement asphalt emulsion (CA) composite materials are becoming promising building materials in recent years. Assessing their rheological behavior is crucial for the success of a particular application. Fresh CA pastes with different asphalt emulsion to cement mass ratios (AE/C) have significantly different compositions, and design of their rheological properties is not an easy task. The minimum apparent viscosity of CA pastes with different AE/C is predicted by a viscosity prediction model. The model parameters include maximum particle packing density (ϕm) and an adjusting factor b. A predictive model of CA composite particles is proposed, in which the maximum particle packing density of CA pastes can be determined by the maximum particle packing density of cement paste, the maximum particle packing density of asphalt emulsion, and the volume fraction of asphalt in asphalt-cement system. The predictive model requires different adjusting factor b for CA pastes with anionic and cationic asphalt emulsion when the predicted ϕm is used for viscosity prediction. The proposed viscosity prediction equations do offer a simple and reliable method for the viscosity prediction of CA pastes with a wide AE/C range, and can be used to design the rheological properties of CA pastes.
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[11]  
Akpinar MV(2010)Simulation of the flow of fresh cement suspensions by a Lagrangian finite element approach J Non-Newton Fluid 165 1555-1563
[12]  
Li G(2012)On the identification of rheological properties of cement suspensions: rheometry, computational fluid dynamics modeling and field test measurements Cem Concr Res 42 1134-1146
[13]  
Zhao Y(2001)New methodology for designing self-compacting concrete ACI Mater J 98 429-439
[14]  
Pang S(2006)A theoretical frame to study stability of fresh concrete RILEM Mater Struct 39 75-83
[15]  
Song H(2012)Correlating dynamic segregation of self-consolidating concrete to the slump-flow test Constr Build Mater 28 499-505
[16]  
Do J(2014)Influences of temperature on mechanical properties of cement asphalt mortars Mater Struct 47 285-292
[17]  
Soh Y(2014)Factors influencing rheological properties of fresh cement asphalt emulsion paste Constr Build Mater 68 611-617
[18]  
Tan Y(2014)Study of the rheological behavior of fresh cement emulsified asphalt paste Constr Build Mater 66 348-355
[19]  
Ouyang J(2009)Adsorption behaviour between cement and asphalt emulsion in CA mortar Adv Cem Res 21 11-14
[20]  
Lv J(2012)Study on the rheological properties of fresh cement asphalt paste Constr Build Mater 27 534-544
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