1998
DOI: 10.1016/s0008-8846(98)00022-2
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Rheology of High-Performance Concrete: Effect of Ultrafine Particles

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Cited by 170 publications
(60 citation statements)
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“…This was mainly because of the higher specific surface area of MK in comparison with the cement alone. Another reason, cited by Nehdi et al (1998), is that the Van der Waals, which are the main causes for cement particles agglomeration and electrostatic attraction between cement and pozzolan particles becomes dominant due to the increase in the wettable surface area. Therefore, as the percentage replacement increases flocculation becomes more predominant.…”
Section: Sp Demandmentioning
confidence: 99%
See 1 more Smart Citation
“…This was mainly because of the higher specific surface area of MK in comparison with the cement alone. Another reason, cited by Nehdi et al (1998), is that the Van der Waals, which are the main causes for cement particles agglomeration and electrostatic attraction between cement and pozzolan particles becomes dominant due to the increase in the wettable surface area. Therefore, as the percentage replacement increases flocculation becomes more predominant.…”
Section: Sp Demandmentioning
confidence: 99%
“…Therefore, as the percentage replacement increases flocculation becomes more predominant. In the presence of a dispersant such as SP on the surface of cement grains, particles repulse each other because of the dispersion of agglomerated cement particles and remain separate thus delivering the required workability (Nehdi et al 1998). The relationship between SP dosage with respect to the percentage of total dry weight of binder content is shown in …”
Section: Sp Demandmentioning
confidence: 99%
“…Igualmente, substituindo o cimento por um material com área específica diferente, muda-se a área superficial molhável e a quantidade de água adsorvida. Algumas adições, contendo uma determinada solubilidade em água, podem modificar a solução eletrolítica e, assim, as forças eletrostáticas [33].…”
Section: Mecanismos De Ação Do Superplastificanteunclassified
“…Esses materiais também podem apresentar diferentes eficiências para a adsorção do aditivo. Eles podem ser solúveis e introduzir íons que influenciam a cinética da reação de hidratação e a nucleação dos produtos hidratados [33].…”
Section: Mecanismos De Ação Do Superplastificanteunclassified
“…Like the packing of aggregate, it is generally believed that the addition of fillers smaller in size than cement would lead to packing density improvement. Albeit the effects of different fillers on concrete have been widely reported [13]- [22], their potential effects on packing density has been rarely researched and measured quantitatively. To fill this gap, the recently developed wet packing method was applied to measure the packing density of powder paste.…”
Section: Introductionmentioning
confidence: 99%