Pengaruh Suhu Pemeraman terhadap Kinerja Fly Ash untuk Tanah Lempung Lunak

Septriza Auli, Andius Dasa Putra, Aminudin Syah, Iswan Iswan

Abstract


One of the construction problems that is often encountered in the world, including Indonesia, is the construction of highways carried out on soft soil subgrade. In general, the improvement of soft subgrade is carried out with special modifications or handling, one of which is by stabilization so the subgrade can be used based on the standards. The use of fly ash as a stabilization material is considered an effective option because of its economical price and the elements in it have the ability to harden and increase strength when reacting with water. This study aims to find out the improvement of soft soil quality that has been mixed with several variations of fly ash seen from parameters such as Atterberg Limits and CBR. By reviewing the highest temperature conditions that ever happened in Indonesia based on Badan Meteorologi dan Geofisika (BMKG) and relating it with temperature conditions in the field, the study also reviewed the influence of high temperatures of 40°C on these parameters. The results are a decrease in the maximum dry density and an increase in the optimum moisture content. In addition, the value of the Atterberg Limit decreased significantly. The largest CBR value is shown in the addition rate of fly ash by 10% with a 7-day curing time at a temperature >40°C.

Keywords: soft soil, soil stabilization, fly ash, high curing temperature, CBR


Full Text:

PDF

References


Beeghly, J. H. (2003). Recent Experiences with Lime – Fly Ash Stabilization of Pavement Subgrade Soils, Base, and Recycled Asphalt. International Ash Utilization Symposium, 20-22 October, 1–18.

Brooks, R. M. (2009). Soil Stabilization with Fly Ash and Rice Husk Ash. International Journal of Research and Reviews in Applied Sciences, 1(3), 2076–2734.

Hardiyatmo, H. (1993). Mekanika Tanah 1.

Hatmoko, J. T., & Suryadharma, H. (2018). Pengaruh Temperatur Pemeraman Pada Perilaku Geser Tanah Lempung Yang Distabilisasi Dengan Semen. Cantilever, 7(2). https://doi.org/10.35139/cantilever.v7i2.70

Ibrahim. (2014). Stabilisasi Tanah Lempung Dengan Bahan Aditif Fly Ash Sebagai Lapisan Pondasi Dasar Jalan (Subgrade). Jurnal Teknik Sipil Pilar, 10 (1), 1–9.

Jauhari, Z., Fauzi, A., & Fauzi, U. J. (2013). Pemanfaatan Limbah Batubara (Fly Ash) Untuk Bahan Stabilisasi Tanah Dasar Konstruksi Jalan yang Ramah Lingkungan. Jurnal Tekno Global, II (1), 57–63.

Lu, Y.T., Tan, T.S., Phoon, K.K. (2011). Curing Temperature on Strength Development of Cement Treated Singapore Marine Clay: A Discussion on Arrhenius Equation Based Maturity Model and Its Application. Proceeding Advances in Ground Technology and Geo-Information, 261–269.

Siska, H. N., & Yakin, Y. A. (2016). Karakterisasi Sifat Fisis dan Mekanis Tanah Lunak di Gedebage. Jurnal Teknik Institut Teknologi Nasional, 2(4), 44–55.

WSP International. (2001). Panduan Geoteknik 1 Proses Pembentukan dan Sifat-sifat Dasar Tanah Lunak. Pusat Litbang Prasarana Transportasi.


Refbacks

  • There are currently no refbacks.


Publisher

Department of Civil Engineering

Engineering Faculty

University of Lampung

Website: http://journal.eng.unila.ac.id/index.php/jrsdd

Email: jurnal.rekayasa.sdd@gmail.com
 
Copyright (c) JRSDD (Jurnal Rekayasa Sipil dan Desain)
P-ISSN: 2303-0011 (Print); E-ISSN: 2715-0690 (Online)