| This paper is investigated on the unconfined compressive mechanical behaviour of fibre and nano Mg O reinforced cement coastal clay.Reinforced soil with cement was commonly used stabilization technique in engineering practice these days,but the use of cement alone as a stabilizer showed some disadvantages,especially in terms of strength and stiffens,and can even affect the environment.Therefore,additional or substituting materials are used to improve these effects.Many scholars used different methods to resolve these effects.These days Nano materials,as a typical modified material,are used in many studies.In this paper,nano Mg O and fibre as additional materials were used,and the improvement effects on the mechanical behaviour of cement stabilized coastal clay soil were explored.In the experiment 30% and 20% cement contents and 1% each for fibre and nano Mg O were used.The percentage of the content of cement,fibre and nano Mg O was taken according to the soil amount which is used for the experiment.And also,Higher percentage moisture content was adopted which was 80% of the total mix.In this study,the effects of fibre and nano Mg O on cement reinforced soil were studied separately and jointly.Therefore,the effect of the materials can be seen briefly.The study also examined the effect of curing period.7d,14 d & 28 d of curing periods were used for the samples of the studies.So,the mechanical behaviour of the mixture over time was investigated.Finally,a mathematical model based on the results of natural logarithmic distribution was discussed.In the test results,fibre and nano Mg O showed significant enhancement on unconfined compression strength(UCS)when they were used jointly instead of separately.The curing period also enhanced the strength of the samples,and the strength increased with the increase in curing time.Therefore,the mechanical behaviour shows good improvement based on the curing period. |
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