Determination of SSD condition of fine aggregates using AC impedance spectroscopy

Determination of the water content of fillerised fine aggregates in the saturated surface dry state. Construction and Building Materials, Elsevier, 2015, 98, pp.Abstract 4An experimental setup designed to capture the saturated surface dry (SSD) state of 5 porous fine aggregates incorporating significant amounts of fines is presented. This 6 setup is validated upon testing fine aggregate sources with different water absorption 7 values up to 5.6 %, and at least 8 % of fines. Test duration is found to lie in the 120-to-8 240-minute-range, depending on test sample initial mass and water content. Several 9 procedures for calculating the water content in SSD state are presented and discussed. 10One of these procedures uses the drying theory to fit curves depicting water content 11shift as a function of drying time and identify breakpoints. A more straightforward 12 strategy is focused on the transition point between retained and free water on charts 13representing the variations of water content as a function of relative humidity. In both 14 cases, fairly repeatable and discriminant water content values in SSD state are obtained. 15As expected, these values are found significantly higher than those determined in the 16 absence of fines according to the usual cone test [1]. Moreover the lack of reliability of 17water absorption values determined in the presence of fines according to the cone test 18 procedure is verified. Eventually, several perspectives are pointed out to improve the 19 setup which could easily be automated. 20 Determination of the water content of fillerised fine aggregates in the saturated surface dry state, Construction and Building Materials, 98, Elsevier,

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A method to determine water absorption of recycled fine aggregate in paste for design and quality control of fresh mortar

Liu

Xiao

et al. 2019

Construction and Building Materials

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Determination of SSD condition of fine aggregates using AC impedance spectroscopy

Cited by 4 publications

References 9 publications

Filler from crushed aggregate for concrete: Pore structure, specific surface, particle shape and size distribution

Filler from crushed aggregate for concrete: Pore structure, specific surface, particle shape and size distribution

Determination of the water content of fillerised fine aggregates in the saturated surface dry state

A method to determine water absorption of recycled fine aggregate in paste for design and quality control of fresh mortar

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