Perancangan Beton Ringan Struktural Expanded Clay Dengan Kuat Tekan Awal Tinggi

Owen, Mike (2020) Perancangan Beton Ringan Struktural Expanded Clay Dengan Kuat Tekan Awal Tinggi. Bachelor thesis, Universitas Pelita Harapan.

	Text (Title) Title.pdf Restricted to Registered users only Available under License Creative Commons Attribution Non-commercial Share Alike. Download (5MB)
Preview	Text (Abstract) Abstract.pdf Available under License Creative Commons Attribution Non-commercial Share Alike. Download (747kB) | Preview
Preview	Text (ToC) ToC.pdf Available under License Creative Commons Attribution Non-commercial Share Alike. Download (1MB) | Preview
Preview	Text (Chapter1) Chapter1.pdf Available under License Creative Commons Attribution Non-commercial Share Alike. Download (1MB) | Preview
	Text (Chapter2) Chapter2.pdf Restricted to Registered users only Available under License Creative Commons Attribution Non-commercial Share Alike. Download (2MB)
	Text (Chapter3) Chapter3.pdf Restricted to Registered users only Available under License Creative Commons Attribution Non-commercial Share Alike. Download (6MB)
	Text (Chapter4) Chapter4.pdf Restricted to Registered users only Available under License Creative Commons Attribution Non-commercial Share Alike. Download (8MB)
	Text (Chapter5) Chapter5.pdf Restricted to Registered users only Available under License Creative Commons Attribution Non-commercial Share Alike. Download (662kB)
Preview	Text (Bibliography) Bibliography.pdf Available under License Creative Commons Attribution Non-commercial Share Alike. Download (874kB) | Preview
	Text (Appendices) Appendices.pdf Restricted to Repository staff only Available under License Creative Commons Attribution Non-commercial Share Alike. Download (1MB)

Abstract

Beton pracetak merupakan alternatif yang dapat digunakan untuk rumah cepat bangun yang tahan gempa dalam jumlah massal dan kualitas yang terkontrol. Untuk mempermudah proses pemasangan dan mengurangi biaya alat angkut, beton pracetak perlu memiliki berat yang ringan. Selain ringan, kebutuhan produksi beton pracetak yang massal membutuhkan beton pracetak memiliki kuat tekan awal tinggi sehingga dapat meningkatkan kapasitas produksi. Sebagai solusi dari kebutuhan pembangunan tersebut, maka tujuan dari penelitian ini adalah menghasilkan beton ringan menggunakan expanded clay dengan target berat jenis maksimal 1750 kg/m3, kuat tekan awal minimal sebesar fc’ = 14 MPa pada 1 hari dan kuat tekan sebesar f’c = 20 MPa pada 28 hari. Untuk menghasilkan kuat tekan yang lebih tinggi maka indikator seperti internal curing, steam curing, superplasticizer, dan accelerator digunakan. Adapun untuk mengurangi limbah plastik, penggunaan limbah biji plastik LDPE dilakukan pada penelitian ini. Hasil penelitian menunjukkan mix design dasar beton expanded clay menghasilkan berat jenis dibawah 1750 kg/m3 dan mencapai target kuat tekan 20 MPa pada umur 28 hari dengan memanfaatkan internal curing. Dengan penambahan superplasticizer 2,5% kuat tekan pada umur 28 hari dapat meningkat hingga 1,5%. Target kuat tekan awal 14 MPa sudah dapat dicapai pada umur 1 hari dengan tambahan perawatan steam curing yang meningkatkan kekuatan awal hingga 50%. Hasil kuat tekan awal yang lebih maksimal didapat dengan penambahan accelerator hingga 10% pada campuran beton superplasticizer dengan perawataan steam curing, dimana kuat tekan awal di 1 hari dapat ditingkatkan lagi hingga 47,8% yang menghasilkan kuat tekan hingga 21,64 MPa dengan berat jenis 1722 kg/m3. Penambahan biji plastik LDPE dapat digunakan untuk mengurangi berat jenis beton hingga 2,14%. Dari penelitian ini, dapat disimpulkan bahwa penggunaan steam curing efektif untuk mendapatkan kuat tekan awal yang ditergatkan di umur 1 hari pada beton ringan expanded clay. Selanjutnya, untuk memaksimalkan kuat tekan awal dapat ditambahkan accelerator hingga 10%. / Precast concrete is an alternative that can be used for fast built earthquake-resistant houses in bulk quantities and controlled quality. To ease the installation process and reduce transportation costs, precast concrete needs to be light in weight. Aside from being lightweight, the requirement for mass precast concrete production requires precast concrete has a high initial compressive strength so as to increase production capacity. As a solution to the development needs, the purpose of this research is to produce lightweight concrete using expanded clay with a maximum specific gravity target of 1750 kg / m3, a minimum initial compressive strength of f'c = 14 MPa on 1 day and compressive strength of fc' = 20 MPa at 28 days. To produce higher compressive strength, indicators such as internal curing, steam curing, superplasticizer, and accelerator are used. As for reducing plastic waste, the use of LDPE plastic seed waste was carried out in this study. The results showed the basic mix design of expanded clay concrete produced a specific gravity below 1750 kg / m3 and reached the target of 20 MPa compressive strength at 28 days using internal curing. With the addition of 2.5% superplasticizer compressive strength at the age of 28 days can be increased to 1.5%. The initial compressive strength target of 14 MPa can be achieved at the age of 1 day with additional steam curing treatment which increases initial strength by up to 50%. Maximum initial compressive strength results are obtained by the addition of an accelerator up to 10% in a superplasticizer concrete mixture with steam curing treatment, where the initial compressive strength in 1 day can be increased again to 47.8% which produces compressive strength up to 21.64 MPa with specific gravity 1722 kg / m3. The addition of LDPE plastic pellets can be used to reduce concrete density by 2.14%. From this study, it can be concluded that the use of steam curing is effective in getting the tergeted initial compressive strength in lightweight expanded clay concrete. Furthermore, to maximize the initial compressive strength accelerator can be added up to 10%.

Actions (login required)

View Item