CD Skripsi

Korosi Dan Leaching Beton Blended Pofa Dengan Campuran Silika Di Air Gambut

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ABSTRACT
Blended concrete is a mixture of aggregate and blended cement. Substitution of cement into mixed cement has an impact on increasing the pozzolanic reaction in cement. The silica content in Palm Oil Fuel Ash (POFA) is the element most needed to increase the reactivity of pozzolans. A treatment is required to obtain pure silica in POFA through the sol gel precipitation process. The content of SiO2 compounds contributes to the hardening process and increases the compressive strength in concrete. To determine the effect of adding silica to the blended concrete mixture, a study was carried out by making 4 variations, namely PCC concrete, PCC POFA, PCC POFA silica fume and PCC POFA silica precipitation. Effect of peat water on concrete immersion at 0, 7, 28 and 91 days of age to determine the effect of adding precipitating silica to the test. The research consisted of strength compression test, Ultrasonic Pulse Velocity (UPV), half cell corrosion potential, reinforcement weight loss corrosion, and Leaching. The results showed that the highest potential half-cell corrosion rate was found in PCC POFA and PCC POFA SF concrete with a potential difference value of -206.71 mV and -195.73 mV respectively, while corrosion loss of reinforcement weight was in PCC POFA concrete. with a corrosion rate of 0.187 mm/y at 91 days of immersion. Leaching aims to determine the dissolved metals produced by concrete when it is soaked for 28 days and to obtain the lowest dissolved elements, namely Cd, Cr, Cu, Pb Zn and Ca found in precipitated silica POFA PCC concrete. This proves that the replacement of a number of pozzolans with precipitated silica can affect the microstructure of concrete so that the concrete is more impermeable.
Keywords: Blended concrete, Silica, Peat Water, Corrosion and Leaching

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

1807113136

Penerbit

Pekanbaru : Universitas Riau – Fakultas Teknik – Teknik Sipil., 2022

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1807113136

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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