Forensic Discrimination of Concrete Pieces by Elemental Analysis of Acid-soluble Component with Inductively Coupled Plasma-Mass Spectrometry

Kasamatsu, Masaaki; Igawa, Takao; Suzuki, Shinichi; Suzuki, Yasuhiro

doi:10.2116/analsci.18sbn02

Cited by 4 publications

(3 citation statements)

References 27 publications

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“…The dissolution with 1 mol·L −1 HNO 3 was already used by Graham and co-authors in their cement provenancing study [ 11 ], where it has proven effective for the identification of cement from hardened concrete samples. This approach was also used by Kasamatsu and co-authors [ 7 ] for analysing nitric acid-soluble components in the fragments of concrete for forensic issues.…”

Section: Methodsmentioning

confidence: 99%

“…Since the properties of concretes are dominated by their key compound, cement [2], devising a way to determine its origin, known as provenancing, is of great importance. Provenance studies of concrete and cement are required for failure research, damage assessment, and resulting liability issues related to concrete structures, and they are also important in forensic science [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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Development of a sample preparation procedure for Sr isotope analysis of Portland cements

et al. 2022

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The 87Sr/86Sr isotope ratio can, in principle, be used for provenancing of cement. However, while commercial cements consist of multiple components, no detailed investigation into their individual 87Sr/86Sr isotope ratios or their influence on the integral 87Sr/86Sr isotope ratio of the resulting cement was conducted previously. Therefore, the present study aimed at determining and comparing the conventional 87Sr/86Sr isotope ratios of a diverse set of Portland cements and their corresponding Portland clinkers, the major component of these cements. Two approaches to remove the additives from the cements, i.e. to measure the conventional 87Sr/86Sr isotopic fingerprint of the clinker only, were tested, namely, treatment with a potassium hydroxide/sucrose solution and sieving on a 11-µm sieve. Dissolution in concentrated hydrochloric acid/nitric acid and in diluted nitric acid was employed to determine the 87Sr/86Sr isotope ratios of the cements and the individual clinkers. The aim was to find the most appropriate sample preparation procedure for cement provenancing, and the selection was realised by comparing the 87Sr/86Sr isotope ratios of differently treated cements with those of the corresponding clinkers. None of the methods to separate the clinkers from the cements proved to be satisfactory. However, it was found that the 87Sr/86Sr isotope ratios of clinker and cement generally corresponded, meaning that the latter can be used as a proxy for the clinker 87Sr/86Sr isotope ratio. Finally, the concentrated hydrochloric acid/nitric acid dissolution method was found to be the most suitable sample preparation method for the cements; it is thus recommended for 87Sr/86Sr isotope analyses for cement provenancing. Graphical abstract

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development of a sample preparation procedure for Sr isotope analysis of Portland cements

et al. 2022

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“…[38][39][40][41] Sawaki and co-authors estimated the chemical composition of cement in hardened concrete via an electron probe microanalyser, but the sensitivity turned out to be insufficient for discrimination. 42 Kasamatsu and co-authors 43 examined elemental (Cu, Rb, Zn, Sr, Zr, Ba, La, Ce, Nd and Pb) discrimination in nitric acid soluble components of concrete. According to the authors, this method can be used for forensic discrimination.…”

Section: Elemental Ngerprintingmentioning

confidence: 99%