Artikel

Assessment of Tin Slag 2 as a Fine Aggregate Substitute in Mortar: Characterization and Compressive Strength Evaluation | JUPETEN 2026

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Tin slag 2 is a by-product of the tin smelting industry that has the potential to be reused as a construction material. However, its utilization remains limited due to the presence of naturally occurring radionuclidesnand the need to evaluate its engineering performance. This study aimed to assess the material characteristics and compressive strength of mortar incorporating tin slag 2 as a fine aggregate substituten under different cement-to-fine aggregate ratios (1:3 and 1:4). Tin slag 2 obtained from PT Sariwiguna Bina Sentosa was characterized through gamma spectrometry measurements and physical property testing. Mortar specimens were prepared with tin slag 2 substitution levels of 0%, 5%, 10%, 15%, and 20% of the fine aggregate weight and were tested for compressive strength at curing ages of 7, 14, and 28 days. The results showed that raw tin slag 2 contained 226Ra, 228Ra, and 228Th with activity concentrations of 5.7 Bq/g, 16.6 Bq/g, and 14.3 Bq/g, respectively, exceeding the standard safety exemption criterion of 1 Bq/g. Regarding mechanical properties, the compressive strength increased with curing age across all mixtures. At a 1:3 ratio, the optimum compressive strength reached 11.172 MPa at 28 days with 5% tin slag 2n substitution. Meanwhile, at a 1:4 ratio, the compressive strength continuously improved up to the 20%rnsubstitution level, reaching 9.471 MPa at 28 days. The results demonstrate the initial mechanical feasibility of utilizing tin slag 2 as a partial fine aggregate substitute; however, comprehensive radiological dose assessments of the final products are mandatory in subsequent studies before widespread structural application can be recommended.

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Ketersediaan

Informasi Detail

Judul Seri

Jurnal Pengawasan Tenaga Nuklir

No. Panggil

624.1834 PUJ A

Penerbit

Jakarta : BAPETEN., 2026

Deskripsi Fisik

6p. : Illus. ; pdf

Bahasa

English

ISBN/ISSN

2798-513X

Klasifikasi

624.1834

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

Jupeten, 6 (1), 26 – 31 (2026)

Subjek

Terak Timah

Info Detail Spesifik

Konten Lokal JUPETEN DOI: 10.53862/jupeten.v6i1.005

Pernyataan Tanggungjawab

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Versi lain/terkait

Lampiran Berkas

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