Prototipe Mortar Cetak 3d Geopolimer Dengan Variasi Molaritas Naoh Menggunakan Metode Pencampuran Kering.

Arrafid, Rifqi Nadhif (2022) Prototipe Mortar Cetak 3d Geopolimer Dengan Variasi Molaritas Naoh Menggunakan Metode Pencampuran Kering. Diploma thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Mortar cetak 3D saat ini telah menjadi fokus automasi penelitian dalam 2 dekade terakhir. Perkembangan teknologi mortar cetak 3D pada automasi konstruksi dapat mereduksi hingga 50% biaya konstruksi. Aplikasi teknologi mortar cetak 3D sejalan dengan renstra PUPR ditjen PUPR dalam pemenuhan kebutuhan rumah khusus sebanyak 10.000 unit. Penilitian terdahulu tentang mortar cetak 3D lebih umum dijumpai menggunakan bahan dasar semen hidrasi berbasis ordinary portland cement (OPC) yang tidak ramah lingkungan. Salah satu alternati material yang digunakan untuk mengatasi permasalahan pada mortar semen hidrasi adalah teknologi mortar geopolimer. Pengembangan mortar cetak 3D dengan material geopolimer belum banyak dikembangkan. Penelitian ini memanfaatkan limbah fly ash tipe C sebagai material utama pembuatan mortar cetak 3D geopolimer. Penelitian ini menggunakan variasi konsentrasi NaOH 8M, 10M, dan 12M untuk mengubah karakteristik workability dan kuat tekan dari mortar cetak 3D geopolimer. Pengujian Workability pada mortar cetak 3D terdiri beberapa paramater meliputi pumpability, extrudability, dan Buildability. Identifikasi Rheology dan flowability material dilakukan untuk mengetahui kemampuan pumpability, extrudability, dan buildability. Beberapa pendekatan uji seperti slump flow, slump, shape retention dan uji rheometer menggunakan vane shear dilakukan untuk mengidentifikasi karakteristik rheology dan flowability material. Variasi konsentrasi NaOH 10M merupakan komposisi paling optimum dengan nilai tegangan geser pada rentang 0,1 – 2,71 kPa dan viskositas pada rentang nilai 0,03 – 0,76 kPa.s yang dipilih untuk diujikan pada mesin cetak 3D. Pada uji kuat tekan, variasi 10M menghasilkan mutu 25,84 Mpa dan memenuhi persyaratan minimum untuk mortar struktural berdasarkan ACI 318/318R - 14 sebesar 17,25 Mpa.
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Nowadays, 3D printed geopolimer concrete has been the focus of research automation in the last two decades. The development of 3D printed concrete technology in construction automation can reduce construction costs by up to 50%. The application of 3D printed concrete technology is in line with the PUPR strategic plan of the directorate general of PUPR in meeting the needs of 10,000 unique houses. Previous research on 3D printed concrete is more commonly found using hydration cement based on ordinary portland cement (OPC), which is not environmentally friendly. One of the alternative materials used to overcome the problems of hydration cement concrete is geopolymer concrete technology. The development of 3D-printed concrete with geopolymer material has not been widely developed. This research utilizes type C fly ash waste as the primary material for manufacturing geopolymer 3D printed concrete. This research using varition of NaOH ranging 8M, 10M, and 12M respectively to changging the characteristic of 3D printed mortar geopoolymer for workability and compressive strength. Workability testing on 3D printed mortar consists of several parameters, including permeability, extrudability, and buildability. Rheology identification and material flowability determine permeability, extrudability, and buildability. Several test approaches such as slump flow, slump, shape retention, and rheometer test using vane shear were carried out to identify the rheological characteristics and flowability of the material. The variation of NaOH 10M concentration is the most optimum composition based on testing the material's workability. In the compressive strength test, the interpretation of 10M produces a quality of 25.84 Mpa and meets the minimum requirements for structural concrete based on ACI 318/318R - 14 of 17.25 Mpa.

Item Type:	Thesis (Diploma)
Additional Information:	RSIS 620.135 Arr p-1 2022
Uncontrolled Keywords:	Mortar Cetak 3D, Geopolimer, Rheology, Workability. 3D Concrete Printing, Geopolymer, Rheology, Flowability.
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Vocational > 22301-Civil Infrastructure Engineering (D4)
Depositing User:	Mr. Marsudiyana -
Date Deposited:	13 Jul 2026 07:24
Last Modified:	13 Jul 2026 07:24
URI:	http://repository.its.ac.id/id/eprint/134798

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