CD Skripsi

Ketahanan Mortar Geopolimer Hybrid Abu Terbang Serbuk Karet Dengan Variasi Naoh Pada Suhu Tinggi

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The utilization of waste rubber and waste fly ash as basic materials in the manufacture of materials is an effort made to mitigate negative impacts on the environment. Rubber powder waste that is elastic and resistant to high temperatures is derived from old vehicle tire waste. Fly ash from PLTU waste is one of the geopolymer materials or alternative adhesive to replace cement. Both wastes can be used as a mortar mixture to be applied at high temperatures. The purpose of this research is to study the effect of NaOH molarity variation on the durability of rubber powder fly ash hybrid geopolymer mortar at high temperature. The tests carried out consist of mortar flow value, strength activity index (SAI), compressive strength, porosity, density, mass change and stability. This study used rubber powder as a substitute for fine aggregate at 5%, silicate modulus (Ms) 2.5, and additional PCC cement of 15% by weight of fly ash. Variations in the molarity of NaOH used are 8M, 10M, and 12M. The curing of the specimens was carried out for 28 days at room temperature and burned in a furnace oven at 250°C, 500°C, and 750°C for 1 hour. The results showed that the compressive strength value for the variation without rubber powder GPCR 0-12M-2.5 was 18.80 MPa and with rubber powder GPCR 5-12M-2.5 of 17.60 MPa, GPCR 5-10M-2.5 of 14.80 MPa, and GPCR 5-8M-2.5 of 14.40 MPa at room temperature. The decrease in compressive strength after being exposed to a temperature of 750°C in mortar without GPCR-0-12M-2.5 rubber powder was 33.18% greater than in mortar with GPCR 5-12M-2.5 rubber powder of 28.7%. This indicates that the use of rubber powder can increase the resistance of mortar geopolymer at high temperature. In addition, the greater the molarity of NaOH can increase strength and maintain resistance at high temperatures.

Keywords: Durability, high temperature, fly ash hybrid geopolymer mortar,
rubber powder, NaOH molarity

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

1907113004

Penerbit

Pekanbaru : Universitas Riau - F. Teknik Teknik Sipil., 2023

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1907113004

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

Vina

Versi lain/terkait

Lampiran Berkas

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