Analisis Pengaruh Variasi Silica Fume dan Lumpur Lapindo Terhadap Kuat Tekan Mortar Semen Komposit GGBFS

Wibisana, Fadel Dharmawan (2023) Analisis Pengaruh Variasi Silica Fume dan Lumpur Lapindo Terhadap Kuat Tekan Mortar Semen Komposit GGBFS. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Industri semen merupakan salah satu penyumbang utama gas rumah kaca yang berdampak negatif terhadap lingkungan. Dengan mengurangi penggunaan bahan semen konvensional dan menggunakan bahan alternatif akan mengurangi efek gas rumah kaca. Penelitian ini akan menganalisis pengaruh variasi Silica Fume (SF), dan lumpur Lapindo (LP) serta penambahan 10% Ground Granulated Blast Furnace Slag (GGBFS) pada komposisi pembuatan mortar terhadap kuat tekan. Variasi penggunaan SF dan LP yang digunakan adalah 20%, 15%, 10%, 5% dan 0% Silica fume dan 0%, 5%, 10%, 15% dan 20% lumpur Lapindo. Pengujian karakteriasi SEM, XRD dan XRF dilakukan untuk menganalisis morfologi, struktur dan komposisi pada mortar dan bahan penyusunnya. GGBFS memiliki kandungan CaO yang tinggi sehingga dapat menggantikan peran semen secara langsung, untuk silica fume dan lumpur lapindo merupakan material pozzolan yang memiliki SiO2 yang tinggi sehingga dapat terjadi reaksi pozzolanic yang dapat memengaruhi kuat tekan mortar. Pengujian kuat tekan dilakukan setelah curing mortar 7 dan 28 hari. Hasil menunjukan bahwa terjadi peningkatan kuat tekan dari curing mortar 7 hari ke 28 hari. Penambahan SF dan lumpur lapindo mempengaruhi kuat tekan mortar dengan komposisi optimum pada 10% SF dan 10% lumpur lapindo (SF10LP10) sebesar 31,9 MPa pada 7 hari dan 40,6 MPa pada 28 hari.
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The cement industry is one of the main contributors to greenhouse gases that negatively impact the environment. Reducing conventional cement and alternative materials will reduce the greenhouse gas effect. This study will analyze the effect of variations of Silica Fume (SF) and Lapindo mud (LP) and the addition of 10% Ground Granulated Blast Furnace Slag (GGBFS) to the compressive strength of mortar composition. Variations in the addition of SF and LP used were 20%, 15%, 10%, 5% and 0% SF and 0%, 5%, 10%, 15% and 20% Lapindo mud. SEM, XRD and XRF characterization tests were carried out to analyze the mortar's morphology, structure and composition and constituent materials. GGBFS has a high CaO content, so it can replace the role of cement directly. SF and Lapindo mud have high SiO2, so a pozzolanic reaction can occur, affecting the mortar's compressive strength. The compressive strength test was carried out after curing mortar for 7 and 28 days. The results showed an increase in the compressive strength of the curing mortar from 7 days to 28 days. The addition of SF and Lapindo mud affects the compressive strength of the mortar, with the optimum composition at 10% SF and 10% Lapindo mud (SF10LP10) of 31.9 MPa at seven days and 40.6 MPa at 28 days.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	GGBFS, Lumpur Lapindo, Mortar, Silica fume, Lapindo Mud
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA444 Reinforced concrete
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User:	Fadel Dharmawan Wibisana
Date Deposited:	08 Feb 2023 01:07
Last Modified:	08 Feb 2023 01:07
URI:	http://repository.its.ac.id/id/eprint/96413

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