CD Tugas Akhir

Pengaruh Abu Vulkanik Sebagai Substitusi Sebagian Semen Terhadap Kuat Tekan Mortar

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ABSTRACT
Mount Marapi is one of the active volcanoes in West Sumatra that erupted again and released volcanic ash and cold lava at the end of 2023. In general, the composition of volcanic ash consists of Silica and Quartz. The abundant volcanic ash has not been optimally utilized, while volcanic ash which has pozzolanic properties can be used as a partial substitute for cement in making concrete and mortar. The purpose of this study was to determine the effect of mortar compressive strength and maximum compressive strength on the substitution of cement material with volcanic ash of 20%, 25%, 30%, and 35% and to determine the classification of mortar produced on the substitution of cement material with volcanic ash of 20%, 25%, 30%, and 35%. The test object was in the form of a cube with a size of 5x5x5 cm and the compressive strength test was carried out at the age of 14, 21, 28 days. The variations of volcanic ash used were 20%, 25%, 30%, and 35% of the weight of cement. The results of the 28-day test showed that the highest compressive strength value was in normal mortar, which was 19.36 MPa. While the maximum substitution of volcanic ash was in the 25% variation, which was 17.76 MPa. 25% volcanic ash mortar with a compressive strength value of 17.76 MPa was included in the type M mortar classification, namely with a compressive strength value reaching 17.2 MPa, 20% volcanic ash mortar with a compressive strength value of 15.68 MPa was included in the type S mortar classification, the compressive strength exceeded the type S compressive strength standard, which was 12.5 MPa, while 30% and 35% volcanic ash mortar with compressive strength values of 9.12 MPa and 7.68 MPa were included in the type N classification because the compressive strength achievement exceeded the type N compressive strength standard of 5.2 MPa.
Keywords : Volcanic Ash, Compressive Strength, Mortar, Classification, Silica

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

2107035466

Penerbit

Pekanbaru : Universitas Riau – F.TEKNIK – sipil., 2025

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

2107035466

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

TEKNIK SIPIL

Info Detail Spesifik

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Pernyataan Tanggungjawab

daus

Versi lain/terkait

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