CD Skripsi

Variasi Alkali Aktivator Pada Stabilisasi Gambut Dengan Geopolimer Hybrid - Pasir

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ABSTRACT
Peatlands are often found in Riau Province which often causes construction
problems, such as the subsidence of building foundations and road embankments.
Peat soil has a high organic content, has a very high void ratio and has a very
high water content. This causes the carrying capacity to be very low and the level
of compressibility is high. This study aims to assess the stabilization strength of
peat soil using a hybrid-sand geopolymer with the addition of Portland Composite
Cement (PCC) and variations of alkaline activator. Fly ash if added with an
activating agent can become an adhesive like cement. The variation of cement
used was 20% of the weight of the peat soil. The variation of fly ash used was
15% of the weight of peat soil. The alkaline activator solution used consisted of a
solution of sodium hydroxide (NaOH) and a solution of sodium silicate (Na2SiO3).
The concentrations of NaOH used were 10 M, 12 M and 14 M and the ratio of the
silicate modulus used was 1.5 MS, 2 MS and 2.5 MS. All mixtures were cured for
7, 28 and 56 days. It was found at the age of 28 days that the optimum
compressive strength tested by UCS methode of peat soil was 24.86 kPa at the use
of various concentrations of NaOH 12 M and the ratio of the modulus of silicate
used 2.5 MS. Molarity of NaOH affects the compressive strength of geopolymer
stabilized soil. The lower the water content of the soil, the higher the compressive
strength of the soil. Na2SiO3 in this study plays a role in accelerating the
polymerization reaction.
Keywords: Stabilization, Peat Soil, Geopolymer, Fly Ash

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

07 01. 122 (0042)

Penerbit

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

Deskripsi Fisik

ix, 77 hlm.; ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

07 01. 122 (0042)

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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