Keywords
Workability
Kuat Tekan
Kuat Tarik Belah
Abstract
Dalam dunia konstruksi pekerjaan beton memegang peranan sangat penting, baik pada bangunan struktural maupun non struktural.Dapat dilihat bahwahampir setiap bangunan yang didirikanseperti perumahan, gedung bertingkat, jembatan, jalan,  bendungan dan saluran irigasi serta bangunan lainnya selalu  memerlukan adanya pekerjaan betonterutama pada pekerjaan konstruksi beton bertulang. Selama ini pemadatan atau vibrasi dilakukan tidak sesuai dengan prosedur dan dapat menurunkan kualitas beton. Salah satu solusi mengatasi masalah tersebut yaitu dengan penggunaan self compacting concrete.Tujuan penelitian ini untuk mengetahui pengaruh penambahan superplasticizerterhadap workabilitybeton self compacting concretedan untuk mengetahui pengaruh metode self compacting concreteterhadap sifat mekanis beton. Penelitian dilakukan di laboratorium struktur dan bahan dengan penggunaan superplasticizertype sika-viscocrete 3115N sebanyak 2% dari berat semen. Pembuatan job mix designdibuat dengan metode SNI. Berdasarkan hasil penelitian superplasticizerdapat meningkatkan workabilitypada beton segar. Hasil pengujian slump cone test pada beton normal sebesar 8 cm, sedangkan hasil slump flowpada beton self compacting concretesebesar 75 cm. Pada penelitian ini didapatkan nilai kuat tekan beton normal sebesar 25,096 Mpa dan nilai kuat tekan beton SCC sebesar 30,264 Mpa dari mutu rencana 25 Mpa dan nilai kuat tarik belah beton normal sebesar 2,343 Mpa atau 9,340% dari nilai kuat tekan dan nilai kuat tarik belah beton SCC sebesar 3,358 Mpa atau 11,09%  dari nilai kuat tekan. Berdasarkan data yang didapatkan self compacting concrete memilki workabilitydan sifat mekanis yang lebih baik. Â
Â
In the world of construction, concrete work plays a very important role, both in structural and non-structural buildings. It can be seen that almost every building that is erected such as housing, high rise buildings, bridges, roads, dams and irrigation canals and other buildings always requires concrete work, especially in reinforced concrete construction work. During this time compaction or vibration is done not in accordance with procedures and can reduce the quality of concrete. One solution to overcome this problem is the use of self compacting concrete. The purpose of this study was to determine the effect of adding superplasticizer to the workability of self compacting concrete and to determine the effect of the self compacting concrete method on the mechanical properties of concrete. The research was carried out in the structure and material laboratory using 2% sika-viscocrete superplasticizer as much as 2% by weight of cement. Job mix design is made using SNI method. Based on the results of research superplasticizer can increase workability in fresh concrete. The slump cone test results on normal concrete are 8 cm, while the slump flow results on self-compacting concrete are 75 cm. In this study, the compressive strength value of normal concrete was 25.096 MPa and the compressive strength value of SCC concrete was 30.264 MPa from the quality plan of 25 MPa and the value of normal concrete split tensile strength was 2.334 MPa or 9.340% of the compressive strength and SCC concrete compressive strength value. 3.358 MPa or 11.09% of the compressive strength. Based on the data obtained, self compacting concrete has better workability and mechanical properties
References
Asteris, P. G., Ashrafian, A., & Rezaie-Balf, M. (2019). Prediction Of The Compressive Strength Of Self-Compacting Concrete Using Surrogate Models. Computers And Concrete, 24(2), 137-150.
Budi, A. S., Sangadji, S., & Insyiroh, F. R. N. (2018). Pengaruh Ukuran Spesimen Terhadap Hubungan Tegangan Dan Regangan Pada Beton High Volume Fly Ash Self Compacting Concrete. Matriks Teknik Sipil, 6(1).
Korua, A. M., Dapas, S. O., & Handono, B. D. (2019). Kinerja High Strength Self Compacting Concrete Dengan Penambahan Admixture “Beton Mix†Terhadap Kuat Tarik Belah. Jurnal Sipil Statik, 7(10).
Le, H. T., & Ludwig, H. M. (2016). Effect Of Rice Husk Ash And Other Mineral Admixtures On Properties Of Self-Compacting High Performance Concrete. Materials & Design, 89, 156-166.
Sharifi, N. P., Jewell, R. B., Duvallet, T., Oberlink, A., Robl, T., Mahboub, K. C., & Ladwig, K. J. (2019). The Utilization Of Sulfite-Rich Spray Dryer Absorber Material In Portland Cement Concrete. Construction And Building Materials, 213, 306-312.
Omrane, M., Kenai, S., Kadri, E. H., & Aït-Mokhtar, A. (2017). Performance And Durability Of Self Compacting Concrete Using Recycled Concrete Aggregates And Natural Pozzolan. Journal Of Cleaner Production, 165, 415-430.
Revilla-Cuesta, V., Skaf, M., Faleschini, F., Manso, J. M., & Ortega-López, V. (2020). Self-Compacting Concrete Manufactured With Recycled Concrete Aggregate: An Overview. Journal Of Cleaner Production, 262, 121362.
Safarizki, H. A. (2017). Pengaruh Bahan Tambah Serbuk Bata Dan Serat Fiber Pada Self Compacting Concrete (Scc). Jurnal Ilmiah Teknosains, 3(2).
Santos, S., Da Silva, P. R., & De Brito, J. (2019). Self-Compacting Concrete With Recycled Aggregates–A Literature Review. Journal Of Building Engineering, 22, 349-371.
Sasanipour, H., & Aslani, F. (2020). Durability Properties Evaluation Of Self-Compacting Concrete Prepared With Waste Fine And Coarse Recycled Concrete Aggregates. Construction And Building Materials, 236, 117540.
Sulaiman, L., & Fisu, A. A. (2020). Pengaruh Campuran Terhadap Kuat Tekan Beton Agregat Recycle. Rekayasa Sipil, 14(1).
Sulaiman, L., & Suppa, R. (2019). Studi Kuat Tekan Beton Recycle Agregat Terhadap Lingkungan Air Laut. Pena Teknik: Jurnal Ilmiah Ilmu-Ilmu Teknik, 4(1), 1-9.
Authors who publish in PENA TEKNIK: Jurnal Ilmiah Ilmu-ilmu Teknik agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.