Effect of Rice Husk Ash (RHA) on the Compressibility of Soil in Changkat Chermin, Perak

• Main Author: Mas Elina Binti Che Jamil, Mas Elina
• 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/558/1/mas_elina_bt_che_jamil.pdf; http://utpedia.utp.edu.my/558/
• Institution: Universiti Teknologi Petronas

This research presents a series of laboratory test to determine the effect of Rice Husk Ash (RHA) on the compressibility of soil in Changkat Cermin, Perak, Malaysia. This research proves that the compressibility characteristic of the soil changed with adding solely RHA because of interlocking between the soil and RHA particles. The concept can be seen through the particle size distribution curve. Different mixed were prepared by mixing RHA in percentages of 0 %( indicator), 12%, 18%, 24%, 30% and 36% with soil by weight. The blend of soil with 18% to 24% of RHA had resulted in decrease of void ratio, e, decrease of compression index, cc, increase of coefficient of compressibility, c, and decrease of the volume of compressibility, m,. Compaction characteristic and Atterberg's limit were also determined. The addition of RHA with lime/cement increases the Optimum Moisture Content (OMC) and decreases the Maximum Dry Density (MDD)