CD Skripsi

Studi Eksperimental Penggunaan Aktivator Pada Fly Ash Sebagai Bahan Pengganti Semen Pada Ctb (Cement Treated Base)

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ABSTRACT
This research is an experimental study that aims to evaluate the use of fly ash as a
cement substitute in Cement Treated Base (CTB) mixtures, using an alkali activator
as a binding agent. The fly ash used was derived from coal combustion waste and
was combined with an alkali solution consisting of sodium silicate (Na₂SiO₃) and
sodium hydroxide (NaOH) in three variations of alkali to fly ash ratios, namely
1.5:1, 2:1, and 2.5:1. All mixtures were tested for compressive strength at 7 days to
determine the effect of the alkali ratio on the mechanical strength of CTB. The test
results showed that the alkali ratio had a significant effect on the formation of bonds
in the CTB mixture. The 2:1 ratio produced the highest compressive strength value
compared to the other variations, indicating that this ratio is the optimum condition
for activating fly ash as a cement substitute. Based on these results, the use of fly
ash with alkali activator at a certain ratio can be an environmentally friendly and
economical alternative to conventional cement in road foundation layers.
Keywords: Cement Treated Base (CTB), Fly Ash, Alkali Activator, Alkali Activator
Ratio, CTB Compressive Strength.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

2007111518

Penerbit

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

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

2007111518

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

Lampiran Berkas

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