Optimization of sisal fibre and rice husk ash usage on lateritic soil for construction of roadway

2020 ◽  
Vol 33 ◽  
pp. 1720-1726
Author(s):  
Priyanka Sarma ◽  
Sandeep Singh ◽  
Mandeep Kaur
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Lateritic Soil ◽  
Sisal Fibre

scholarly journals Improvement of Collapsible Soil Behavior of a Lateritic Soil Using Rice Husk Ash

2015 ◽  
Vol 668 ◽  
pp. 290-296 ◽  
Author(s):  
Luiza P. Fagundes ◽  
Jhaber D. Yacoub ◽  
Andrey C. Lima ◽  
Flávia R. Nakatsuchi ◽  
José A. Lollo ◽  
...  
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Combined Effect ◽  
Building Construction ◽  
Lateritic Soil ◽  
Soil Behavior ◽  
Collapsible Soil ◽  
Lateritic Soils ◽  
Environmental Friendly

Great areas of Brazil present lateritic soils, such as the northeast and the south. Some of these soils have, as main characteristic, instable structures that can present considerable volumetric deformation in the presence of water. This behavior, also named collapse, is responsible for several problems on the building construction such as cracks and fractures that can damage the safety of structures. The aim of this paper is to assess the possibility of improvement of collapsible behavior of a lateritic soil using rice husk ash (RHA). A previous characterization of soil and RHA was performed in order to assess the combined effect of soil/RHA. The results are so promising, showing a new alternative to reduce the collapsible behavior of soils using an environmental friendly technology.

scholarly journals Compaction behaviour of lateritic soil modified with cement and rice husk ash for road construction

2019 ◽  
Vol 38 (3) ◽  
pp. 573
Author(s):  
A. Idris ◽  
A.Y. Abdulfatah ◽  
S.S. Ahmad ◽  
S.S. Ahmad
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Road Construction ◽  
Lateritic Soil ◽  
Compaction Behaviour

scholarly journals A Comparative Study of the Basic Strength and Hydraulic Properties of Lateritic Soils Stabilized with Rice Husk Ash and Bagasse Ash

2019 ◽  
pp. 1-11
Author(s):  
S. O. Ogundare ◽  
O. A. Oni
Keyword(s):  
Hydraulic Conductivity ◽  
Rice Husk ◽  
Hydraulic Properties ◽  
Rice Husk Ash ◽  
Lateritic Soil ◽  
Dry Density ◽  
Soil Matrix ◽  
Minimum Requirement ◽  
Lateritic Soils ◽  
Group A

The strength and hydraulic properties of lateritic soils stabilized with bagasse ash (BA) and rice husk ash (RHA) were examined in this study. The three lateritic soil samples used in the study were obtained from a borrow pit near the main waste dumpsite in Ado Ekiti, Nigeria. The BA and RHA were obtained locally from the burning of fibrous residue of sugar cane and rice husk respectively. Classification of the soils using AASTHO indicates Soil 1 to be Group A-6 soil, Soil 2 to be Group A-2-6 soil and Soil 3 to be Group A-2-7 soil. In general, the optimum moisture content of the stabilized soils increased with increased content of the admixtures-BA and RHA. The maximum dry density of the stabilized soils decreased with increase in the quantity of BA and RHA. Likewise, the saturated hydraulic conductivity of the stabilized soils decreased slightly with increased content of BA and RHA. The values of the minimum hydraulic conductivity of the stabilized soils were of the order of 10-4cm/s, which are higher than the minimum requirement of 10-7cm/s for soil liners in municipal solid waste landfills. The low pozzolanic characteristics of BA and RHA in the stabilized soils were attributed to the low content of CaO needed to produce CaOH2, which is normally needed to produce pozzolanic reaction products in the presence of water. The characteristics of the modified soils appeared to be influenced by the change in the soil matrix following mixing. Comparison of individual behaviour of BA and RHA in each stabilized soil showed very similar characteristics. It was concluded that another modifier such as cement that has a high content of CaO should be added to the stabilized soils for the full pozzolanic potentials of BA and RHA to be realised.

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