A prediction study of hydroxyapatite entrapment ability in concrete

Volume: 24, Issue: 12, Pages: 2646 - 2649
Published: Dec 1, 2010
Abstract
The entrapment ability of phosphates containing OH−, such as hydroxyapatite (HAP) (Ca5(PO4)3(OH)), was investigated as a means for chloride removal from a concrete pore network solution. The chloride uptake by HAP was found to be very low, of the order of 32–44 ppm after 28 days immersion in a 0.5 M sodium chloride (NaCl) solution at pH 9. A thermodynamic study was performed on the chemical equilibrium of HAP, whitlockite (Ca3(PO4)2), and...
Paper Details
Title
A prediction study of hydroxyapatite entrapment ability in concrete
Published Date
Dec 1, 2010
Volume
24
Issue
12
Pages
2646 - 2649
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