CD Tesis

durabilitas beton campuran abu terbang (blended fly ash) pada lingkungan gambut

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The condition of people living in peatland areas makes it difficult to get clean water for daily needs and they have to buy clean water to meet their needs. Economic limitations make people in peatland areas use clean water for food, drinks and washing so that they are unable to use clean water to be mixed with concrete. People living in peatland areas only have another option to use peat water to be mixed with concrete. Studies on the durability of fly ash concrete in peat environments are still few, especially testing the corrosion rate, therefore it is necessary to study further the durability of concrete through testing the compressive strength of concrete, tensile strength of concrete and corrosion for 90 days in normal water and peat water immersion in order to determine the effect of peat water on concrete.
This study aims to analyze the durability of concrete quality f’c 19.3 MPa mixture of fly ash soaked in normal water and peat water conditions. The composition used for fly ash substitution is PCC100%-FA0%%, PCC80%-FA20% and PCC 60%-FA40%. After the test specimens are made, the test specimens are soaked in normal water and peat water for 90 days, then tests are carried out, namely concrete compression test, concrete tensile test and corrosion test at immersion ages of 28, 56 and 90 days.
Based on the results of the concrete compressive strength and concrete tensile strength tests, the optimal values of concrete compressive strength and concrete tensile strength were obtained at the composition of PCC 80% FA 20%. This is because the addition of fly ash can improve the quality of concrete because fly ash acts as a pozzolanic material that reacts with calcium hydroxide (Ca (OH) 2) produced from cement hydration, however, if the use of fly ash as a cement substitute is too much, it can reduce the quality of concrete because it reduces the amount of cement used in the concrete mixture too much. The value of the corrosion rate of iron in concrete after being soaked using peat water is greater than soaking using normal water because the sulfuric acid in peat water reacts with iron to form a compound that can damage the steel structure in the concrete.
Key Words: durability, concrete, fly ash, peat water.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

2010241722

Penerbit

Pekanbaru : UNRI – PASCA – Magister Teknik Sipil., 2025

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

2010241722

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

Magister Teknik Sipil

Info Detail Spesifik

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Pernyataan Tanggungjawab

Rahmat

Versi lain/terkait

Lampiran Berkas

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