ALTERNATIF PENGGUNAAN SERATECENG GONDOK (EICHHORNIA CROSSIFES) SEBAGAI BAHAN TAMBAH PADACAMPURAN BETON DITINJAU TERHADAP KUAT TEKANNYA

Budi Tri Cahyono(1*), Rio Rahma Dhana(2),

(1) Fakultas Teknik Universitas Islam Lamongan
(2) Fakultas Teknik Universitas Islam Lamongan
(*) Corresponding Author

Abstract


In this increasingly advanced era, the more development is carried out, the increasing scale of development. It shows more and more concrete needs in the future. The purpose of this study is to find out and analyze the addition of water hyacinth fiber as a mixture on concrete. Data analysis methods begin with the investigation of cement material, fine aggregate, coarse aggregate, and water hyacinth material. Concrete is added with water hyacinth fiber with addition variations of 0%, 1%, 3% and 5%. Test object used in the form of a cylinder with size ø 15 cm x 30 cm. Concrete mix design uses ASTM method. In the process of making water hyacinth fiber begins with cutting the water hyacinth by 3-5 cm, then milling it into fiber. The next step is drying into the sun and then into the oven at 150ºC. From the results of the research conducted at the Civil Engineering Laboratory of Lamongan Islamic University, the results showed that there was a decrease in strength in the variation of the addition of water hyacinth 1% and 3% but experienced an increase in the 5% variation. It is known that the correlation of concrete compressive strength at 28 days is 0% at 86.27 Kg/cm2, 1% at 60.66 Kg/cm2, 3% at 55.27 Kg/cm2 and 5% at 57.97 Kg/cm2.

 Keywords: Water Hyacinth; Concrete; Compressive Strength


Di era yang semakin maju ini, semakin banyak pembangunan dilakukan, semakin besar skala pembangunan. Ini menunjukkan semakin banyak kebutuhan konkret di masa depan. Tujuan dari penelitian ini adalah untuk mengetahui dan menganalisis penambahan serat eceng gondok sebagai campuran pada beton. Metode analisis data dimulai dengan investigasi bahan semen, agregat halus, agregat kasar, dan bahan eceng gondok. Beton ditambahkan dengan serat eceng gondok dengan variasi penambahan 0%, 1%, 3% dan 5%. Benda uji yang digunakan berupa silinder dengan ukuran ø 15 cm x 30 cm. Desain campuran beton menggunakan metode ASTM. Dalam proses pembuatan serat eceng gondok diawali dengan memotong eceng gondok sebanyak 3-5 cm, kemudian digiling menjadi serat. Langkah selanjutnya adalah menjemur ke matahari dan kemudian ke oven pada 150 ºC. Dari hasil penelitian yang dilakukan di Laboratorium Teknik Sipil Universitas Islam Lamongan, hasil penelitian menunjukkan bahwa terdapat penurunan kekuatan variasi penambahan eceng gondok 1% dan 3% tetapi mengalami peningkatan variasi 5% . Diketahui bahwa korelasi kuat tekan beton pada 28 hari adalah 0% pada 86,27 Kg / cm2, 1% pada 60,66 Kg / cm2, 3% pada 55,27 Kg / cm2 dan 5% pada 57,97 Kg / cm2.

Kata kunci: Eceng Gondok; Beton; Kuat Tekan.


Keywords


Water Hyacinth; Concrete; Compressive Strength

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References


ASTM,Annual Book of ASTM Standart Volume 04.02 “Concrete and Aggregates”, 2001

ASTM C 29–91, Standard Test Method for Bulk Density (“Unit Weight”) and Voids Aggregates.

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DOI: http://dx.doi.org/10.30737/ukarst.v3i1.346

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