CD Skripsi

Karakteristik Mortar Self Healing Menggunakan Bubuk Kaca Dan Kapur Tohor Dalam Larutan Asam Sulfat

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ABSTRACT
Fine cracks in mortar accelerate deterioration as harmful agents such as sulfuric acid can
penetrate and damage the cement paste, thereby reducing the material's durability. Selfhealing
mortar is one of the potential solutions to extend service life through a continuous
repair mechanism, particularly in sulfuric acid environments. Several types of materials
that can function as self-healing agents include pozzolanic materials containing SiO₂ and
lime-based substances. This study investigates the use of recycled glass powder and
quicklime as self-healing agents in mortar. The variations used include normal mortar,
GP0QL15 (0% glass powder and 15% quicklime), GP15QL15 (15% glass powder and 15%
quicklime), and GP20QL15 (20% glass powder and 15% quicklime). Mortar pre-cracks of
0.1-0.3 mm width were immersed in sulfuric acid solution with pH 4 for 7, 28, and 56 days.
Tests conducted included physical properties, flow value, setting time, porosity, and weight
loss, as well as mechanical properties such as compressive strength, strength activity index
(SAI), and ultrasonic pulse velocity (UPV). Microstructural analysis was carried out using
thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FTIR).
The results showed that the addition of glass powder and quicklime increased the flow
value and setting time. The early compressive strength up to 28 days was lower than that
of the control mortar. However, at 56 days, GP0QL15 achieved the highest compressive
strength of 25.40 MPa. All variations met the standard strength activity index (SAI ≥ 75%)
at 56 days. GP15QL15 exhibited the lowest porosity and weight loss, along with the highest
UPV and self-healing efficiency, with full crack closure (100%) achieved at 56 days. This
indicates pozzolanic reactivity in the formation of secondary C–S–H compounds,
enhancing acid resistance. TGA and FTIR analyses confirmed active pozzolanic reactions
that strengthened the mortar structure. The combination of glass waste and quicklime
proved effective in supporting self-healing and improving the durability of mortar in acidic
environments.
Keywords: Mortars self healing, cracks, glass powder, quicklime, sulfuric acid

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

2107110632

Penerbit

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

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

2107110632

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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