Effects of Cement and Polycarboxylate Ether on the Performance Concrete with High Sludge Content
Jonbi Jonbi1, Mohamad Ali Fulazzaky2, Holidin Arif3

1Jonbi Jonbi*, Department of Civil Engineering, Faculty of Engineering, Pancasila University Jalan Srengseng Sawah, Jagakarsa, Jakarta, Indonesia.
2Mohamad Ali Fulazzaky, Directorate General of Water Resources, Ministry of Public Works and Housing Jalan Pattimura, Jakarta, Indonesia Islamic Science Research Network, Muhammadiyah University of Hamka Jalan Limau, Jakarta, Indonesia
3Holidin Arif, PT. Wijaya Karya Beton, Jalan Biru Laut, Jakarta, Indonesia
Manuscript received on January 14, 2020. | Revised Manuscript received on January 22, 2020. | Manuscript published on February 10, 2020. | PP: 1311-1314 | Volume-9 Issue-4, February 2020. | Retrieval Number: C8313019320/2020©BEIESP | DOI: 10.35940/ijitee.C8313.029420
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: The use of precast concrete structural systems in civil engineering industry in Indonesia will still increase due to the needs of buildings and infrastructure for social and economic development continuously increase from the year to year. In spite of the use of sand accompanied with its suitable sludge content has been widely used as one of the important raw materials for fabricating a precast concrete, the availability of low cost method to obtain a good quality of sand with its sludge content of less than 5% is difficult to find in many regions in the country. The aim of this study was to assess the performance of four cylindrical concrete specimen (CCS) samples by conducting the experiments of testing the natural sand with its high sludge content of 12.7% with using the different ordinary Portland cement (OPC) compositions of 2.5, 5.0, 7.5 and 10.0% and the super-plasticizer of polycarboxylate ether. Two CCS samples of the same composition (1) using the washed sand with its sludge content of 3.7% and (2) without addition of OPC were used as control. The results of compressive strength and slump test verified that the addition of OPC at least by 2.5% into concrete slurry to ensure optimal performance of the CCS samples can be recommended using the natural sand accompanied with its sludge content of 12.7%. This study concluded that the use of local natural sand with its high sludge content as long as the other material compositions used properly could be safe in the fabrication of precast concrete structure for the future civil engineering applications.
Keywords: Compressive Strength, Precast Concrete, Sludge Content, Slump Test
Scope of the Article: High Performance Computing