CD Skripsi

Karakteristik Mortar Self-Healing Menggunakan Abu Cangkang Kerang Dalam Larutan Nacl Dengan Metode Perawatan Wetting-Drying

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ABSTRACT

Self-healing concrete is a technology to heal cracks and reduce the width of cracks in mortars damaged in extreme environments such as marine environments with tidal or wetting-drying cycles. Shell waste through the combustion process will produce CaO content which has the potential to be a substitute for lime in cement making. This study aims to determine the effect of variation of clam shell ash on the characteristics of self-healing mortar in NaCl solution with wetting-drying treatment method. Pre-crack was applied by placing a steel bar on the bottom of the mortar, then the mortar was loaded until small cracks appeared on the surface. Variations of clam shell ash as self-healing agent used were 0% as normal mortar or control mortar, 2.5%, 5% and 7.5%. The treatment method was 24 hours wet condition in NaCl solution and 24 hours dry condition then tested at the age of 0, 7, 28, and 91 days. Tests in this study include flow value, setting-time, compressive strength, porosity, sorptivity, weight change and visual. The results showed that self-healing mortar using clam shell ash in NaCl solution with wetting-drying treatment method could seal the cracks in the mortar well in all variations at the age of 28 days. The cracks were covered by Ca(OH)2 formed when the mortar was wet and Friedel salts formed when the mortar was dry. The flow value showed a decrease while the setting time increased with increasing percentage of clam shell ash. The compressive strength value increased with longer soaking duration. Porosity, sorptivity, and weight change decreased with increasing percentage of shell ash and soaking duration in NaCl solution by wetting-drying method.

Keywords : self-healing mortar, clam shell ash, pre-crack, NaCl solution, wetting-drying

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

2007134788

Penerbit

Pekanbaru : Univeritas Riau - F. Teknik - Teknik Sipil., 2024

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

2007134788

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

Rahmat Hidayat Syahputra

Versi lain/terkait

Lampiran Berkas

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