Alviani, Firman (2022) Pengaruh Silica Fume Dan Mix Design Mortar 3d Printing Untuk Diterapkan Di Industri Konstruksi. Diploma thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pengembangan teknologi mortar 3D printing sebagai system konstruksi pengganti system konstruksi konvensional sendang ramai dikarenakan system konstruksi 3D printing dapat mereduksi biaya konstruksi sekitar 35-50%. Pengaplikasian teknologi 3D printing di Indonesia sejalan dengan penyelenggaraan program pembangunan infrastruktur tahun 2020- 2024 oleh Direktorat Jenderal Perumahan Kementerian Pekerjaan Umum dan Perumahan Rakyat (PUPR) yang menargetkan 10.000 unit rumah khusus untuk dibangun menggunakan teknologi 3D printing. Penelitian ini menggunakan fly ash tipe c, dan silica fume sebagai subtitusi semen PCC. Parameter kelayakan material mortar 3D printing dapat dibagi menjadi 2, yaitu: mortar dapat dicetak dengan mesin 3D printing dan mortar memenuhi syarat sebagai material bangunan. Pengujian fresh properties mortar digunakan ntuk menentukan bisa tidaknya mortar dicetak dalam mesin 3D printing. Untuk mengetahui bisa tidaknya mortar untuk dicetak, perlu dilakukan pengujian fresh properties dari mortar. Fresh properties dari mortar harus memenuhi aspek pumpanility, extrudability, dan buildability. Bebrapa parameter pengujian dilakukan untuk memenuhi aspek pumpanility, extrudability, dan buildability dari mortar 3D printing, seperti pengujian flowability, dan rheology material. Pengujian rheology material menggunakan uji vane shear. Vane shear biasanya digunakan untuk mengukur tegangan geser tanah lempung, namun beberapa penelitian terdahulu membuktikan bahwa vane shear dapat digunakan untuk mengukur rheology beton atau mortar. selain pengujian flowability dan rheology, dilakukan pengujian visual untuk menilai mortar dari segi kemampuan untuk mempertahankan bentuk setelah dideposisikan dan kemampuan mortar untuk menahan beban sendiri dan filamen di atasnya. Lalu untuk mengetahui kelayakan mortar sebagai material bangunan, perlu dilakukan pengujian pada mechanical properties dari mortar 3D Printing. Pengujian tersebut yaitu drying shrinkage dan kuat tekan. Penelitian ini memfokuskan mengenai pengaruh penambahan silica fume terhadap parameter – parameter dalam penelitian dan menemukan komposisi material yang optimum. Mix mortar M4 merupakan proporsi material paling optimum dimana perbandingan bahan pengisi dibanding bahan pengikat sebesar 65% :35% dengan kadar silica fume sebesar 14% dari berat total bahan pengikat. M4 memiliki nilai tegangan geser antara 0.33 – 1.08 kPa dan filamen yang dapat ditumpuk sebanyak 7 lapis filamen. Untuk pengujian kuat tekan mortar, mix M4 memiliki kuat tekan dapat memenuhi 48.47 MPa pada umur 28 hari, sehingga sudah memenuhi persyaratan minimum mortar structural berdasarkan (ASTM C270-14a, 2014) dimana kuat tekan minimum sebesar 17.2 MPa.
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The development of 3D printing mortar technology as a construction system to replace conventional construction systems is currently popular because 3D printing construction systems can reduce construction costs by around 35-50%. The application of 3D printing technology in Indonesia is in line with the implementation of the 2020- 2024 infrastructure development program by the Directorate General of Housing of the Ministry of Public Works and Public Housing (PUPR) which targets 10,000 special housing units to be built using 3D printing technology. This research uses fly ash type c, and silica fume as a substitute for PCC cement. The material feasibility parameters of 3D printing mortar can be divided into 2, namely: mortar can be printed by 3D printing machine and mortar is qualified as building material. The fresh properties mortar test is used to determine whether or not the mortar can be printed in a 3D printing machine. To determine whether or not mortar can be printed, it is necessary to test the fresh properties of mortar. Fresh properties of mortar must fulfill the aspects of pumpability, extrudability, and buildability. Several testing parameters were carried out to fulfill the pumpability, extrudability, and buildability aspects of 3D printing mortar, such as flowability testing, and material rheology. Material rheology testing uses the vane shear test. Vane shear is usually used to measure the shear stress of clay, but several previous studies have proven that vane shear can be used to measure the rheology of concrete or mortar. In addition to flowability and rheology testing, visual testing was carried out to assess the mortar in terms of the ability to maintain shape after being deposited and the ability of the mortar to withstand its own weight and the filaments above it. Then to determine the feasibility of mortar as a building material, it is necessary to test the mechanical properties of 3D printing mortar. These tests are drying shrinkage and compressive strength. This research focuses on the effect of silica fume addition on the parameters in the study and finding the optimum mix design. Mix mortar M4 is the optimum material proportion where the ratio of filler to binder is 65%:35% with silica fume content of 14% of the total weight of the binder. M4 has a shear stress value between 0.33 - 1.08 kPa and filaments that can be stacked as many as 7 layers of filaments. For mortar compressive strength testing, mix M4 has a compressive strength of 48.47 MPa at the age of 28 days, so it meets the minimum requirements of structural mortar based on (ASTM C270-14a, 2014) where the minimum compressive strength is 17.2 MPa.
| Item Type: | Thesis (Diploma) |
|---|---|
| Additional Information: | RSIS 620.135 Alv p-1 2022 |
| Uncontrolled Keywords: | Mortar 3D printing, fresh properties, mechanical properties, silica fume, komposisi material. 3D printing mortar, fresh properties, mechanical properties, silica fume, mix design |
| 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 03:43 |
| Last Modified: | 13 Jul 2026 03:43 |
| URI: | http://repository.its.ac.id/id/eprint/134773 |
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