CD Skripsi

Pembuatan Geopolimer Ringan (Cellular Lightweight Geopolymer, Clg) Berbahan Dasar Fly Ash Batubara

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ABSTRACT
Geopolymer is an inorganic polymer material composed of Si and Al atoms
arranged in a 3-dimensional network (Si-O-Al) synthesized from aluminosilicate
with an alkaline activator solvent. The use of this geopolymer can be used as a
material for making lightweight concrete types of cellular lightweight geopolymer
(CLG) which can be used as a construction wall for building blocks and brick red
brick. This study aims to make a lightweight geopolymer based on fly ash coal
using a foaming agent with the addition of sand, portland, and alkaline liquid
activators and study the effect of adding cement Portland, and the amount of
alkaline liquid activator on the mechanical properties of the resulting mild
geopolymer. Making light geopolymers begins with preparing an alkaline
activator solution made by mixing 10 M NaOH into sodium silicate with a ratio of
(Na2SiO3 2.5/NaOH) to homogeneous, then the foaming liquid is made by
dissolving the foaming agent using water with a ratio (foaming agent/water) 1:30,
after which the foaming liquid is connected to the foam generator to produce the
desired foam, then the process of mixing the raw material used is homogeneous.
SEM analysis results generally show that the higher addition of cement portland
to the geopolymer matrix can reduce the porosity of light geopolymers. While the
mechanical geopolymer mechanical properties test results showed that the highest
compressive strength of 2.15 MPa was obtained from variations in the amount of
activator liquid 23% with the addition of 15% OPC, the lowest porosity and water
absorption of 27.55% and 20.51% obtained from variations in the amount of
liquid activator 23% with the addition of 15% OPC, the results of the density test
showed that lightweight geopolymers have low density and have met the
lightweight concrete standards and endurance testing thermal shows lightweight
geopolymers have high-temperature resistance up to 700 oC.
Keywords: fly ash, geopolymers, light geopolymers, liquid activator, OPC

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

07 02. 120 (0097)

Penerbit

Pekanbaru : Universitas Riau – Fakultas Teknik – Teknik Kimia., 2020

Deskripsi Fisik

ix, 79 hlm.; ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

07 02. 120 (0097)

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 KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

Daus

Versi lain/terkait

Lampiran Berkas

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