The Effect of High Strength Concrete by using Silica Fume and Used Engine Oil as Additive

• Main Author: Izzat Amin Bin Mohd Yazid, Izzat Amin
• Format: Final Year Project
• Language: English
• Published: Universiti Teknologi Petronas 2008
• Subjects: TA Engineering (General). Civil engineering (General)
• Online Access: http://utpedia.utp.edu.my/743/1/izzat_amin_b_mohd_yazid.pdf; http://utpedia.utp.edu.my/743/

High strength concrete was produced using locally available materials. Nowadays, there are many research conducted based on the processed and unprocessed industrial byproducts and domestic wastes as raw material in cement and concrete. This is a positive environmental impact due to the ever-increasing cost of waste disposal and sticker environmental regulation. In order to use a given structural material to its best economic advantage, it is important to understand its properties fully. Thus, fresh and hardened properties of high strength concrete should be investigated properly. Investigation on the effect of high strength concrete by using used engine oil was conducted. The previous research showed that used engine oil have potential on increasing concrete strength and also acting as air-entraining chemical admixture to the concrete. The main objective of the research was to investigate the effectiveness of the combination of used engine oil and silica fume on fresh and hardened properties due to high strength concrete. The test done was slump test for properties of fresh concrete while for properties of hardened concrete the tests were cube crushing strength, split cylinder and porosity test. The main variables included the dosage of used engine oil, the water to binder ratio of the concrete and the cement content. 10% silica fume was used as cement replacement material for six trial mixes. Based on the results obtained, the compressive strength at 28 days for each mixes except for mix SF550a and SF600b had reached 5OMPa which is the target strength for this study and the highest strength achieved was 76MPa. The porosity obtained was also low for each mixes which is good for the strength development of the concrete. However, the tensile strength obtained from this research quiet low and it also decreased due to time. This turned out because of cracking and dry shrinkage occurred in the concrete mixes. From this researched, it showed that concrete containing used engine oil and silica fume with mix proportion 1: 1.5: 2.5 can produce high strength concrete.