Influence of hydrated lime on the surface properties and interaction of kaolinite particles

Chemeda, Yadeta C.; Deneele, Dimitri; Christidis, George E.; Ouvrard, G.

doi:10.1016/j.clay.2015.01.019

Cited by 55 publications

(33 citation statements)

References 38 publications

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“…Similar shape curves for KGa-1b and KGa-2 were reported by Du et al [7] but no zeta potential data was available at pH greater than 8. Chemeda et al [38] obtained a similar pH of zero zeta potential value of 4 for KGa-2 and lower value of ~ 2 for KGa-1b. Not all kaolinites displayed a pH of zero zeta potential, even across a pH…”

Section: Zeta Potential-ph Behaviourmentioning

confidence: 64%

Surface chemistry–microstructure–rheology of high and low crystallinity KGa-1b and KGa-2 kaolinite suspensions

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et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Section: Zeta Potential-ph Behaviourmentioning

confidence: 64%

Surface chemistry–microstructure–rheology of high and low crystallinity KGa-1b and KGa-2 kaolinite suspensions

Clode

Smart

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…Calcium undergoes hydrolysis at higher pH (pH > 10) leading to the formation of monovalent species [33,34]. According to [14], the observed behaviour can be linked to the formation and specific adsorption of first hydrolysis product of calcium (i.e. CaOH + ).…”

Section: Resultsmentioning

confidence: 99%

“…Several studies on the basic lime-clay-reaction mechanisms have been widely reported in literature [8][9][10][11][12][13][14] allowing a better understanding of chemo-physical evolution of the system and microstructural features induced after the addition of lime [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Chemo-physical evolution and microstructure features of lime treated soils

Russo

2016

E3S Web Conf.

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Abstract. In the paper some results on the effects of chemo-physical evolution of clay-lime-water suspensions on the microstructure of a lime treated kaolin have been presented. A multi-scale investigation on the sedimentation behaviour of clay suspensions under different pore water chemistry has been developed highlighting the chemophysical mechanisms controlling particle arrangement and the soil fabric formation. The results evidenced the key role of ionic exchange in the short term on the microstructure features of the lime treated soil.

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“…In addition, as far as cement hydration is concerned, the sand is generally assumed as chemically inert and the cement only reacts with water. However, with fines like kaolinite or montmorillonite this assumption may not hold as there are studies that have recorded the chemical interactions between cement and those minerals [14][15][16]. Therefore, it is possible that the fine particles at lower proportions, which can be generally ignored in case of un-cemented sands, might yield quite different results with cement, even at a small proportion.…”

Section: Introductionmentioning

confidence: 99%

Effect of fine particles on strength and stiffness of cement treated sand

et al. 2019

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Naturally available sands are always found with finer particles of varying sizes and proportions which are generally not accounted for in the geotechnical design of a cemented soil system. This paper explores the behavior of cemented sand with fine particles in smaller proportions. Two types of cements: (1) ordinary portland cement (OPC), (2) calcium sulfoaluminate cement (CSA); three cement contents: 3%, 5%, 7% and four fine (kaolin powder) contents: 0%, 1%, 3%, 5% are considered in this study. The ultrasonic pulse velocity (UPV), shear wave velocity (V s) and unconfined compressive strength (UCS) are measured to investigate the effects of fine particles on the cemented sand. The results show that fine particles do affect quite significantly the mechanical properties of cement-treated sand, even at negligent proportions. The strength and stiffness increase with fine content in both types of cement. The increase in strength and stiffness with increasing fine contents is attributed to the increased density with kaolin acting as a filler material facilitating more contact points among the particles. The results also show that the effect of fine particles on cemented sand depends not only on their relative volume and mineralogy but also on the type of the binding material.

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Influence of hydrated lime on the surface properties and interaction of kaolinite particles

Cited by 55 publications

References 38 publications

Surface chemistry–microstructure–rheology of high and low crystallinity KGa-1b and KGa-2 kaolinite suspensions

Surface chemistry–microstructure–rheology of high and low crystallinity KGa-1b and KGa-2 kaolinite suspensions

Chemo-physical evolution and microstructure features of lime treated soils

Effect of fine particles on strength and stiffness of cement treated sand

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