scholarly journals Effects of corn cob ash on lime stabilized lateritic soil

2018 ◽  
Vol 13 (s1) ◽  
pp. 73-85 ◽  
Author(s):  
Emeka Segun Nnochiri
Keyword(s):  
Compressive Strength ◽  
Soil Sample ◽  
Unconfined Compressive Strength ◽  
Lateritic Soil ◽  
Natural Soil ◽  
Corn Cob ◽  
Lime Stabilization ◽  
Stabilized Soil

Abstract This study assesses the effects of Corn Cob Ash (CCA) on lime-stabilized lateritic soil. Preliminary tests were carried out on the natural soil sample for purpose of identification and classification. Lime being the main stabilizing material was thoroughly mixed with the soil sample to determine the optimum lime requirement of the sample as a basis for evaluating the effects of the CCA. The optimum lime requirement was 10%. The CCA was thereafter added to the lime stabilized soil in varying proportions of 2, 4, 6, 8 and 10%. Unsoaked CBR increased from 83% at 0% CCA to highest value of 94% at 4% CCA. Unconfined Compressive Strength (UCS) values increased from 1123kN/m2 at 0% CCA to highest value of 1180kN/m2 at 4% CCA. It was therefore concluded that CCA can serve as a good complement for lime stabilization in lateritic soil.

scholarly journals Stabilizing Lateritic Soil Using Terrasil Solution

2017 ◽  
Vol 12 (1) ◽  
pp. 19-28
Author(s):  
Olumuyiwa S. Aderinola ◽  
Emeka S. Nnochiri
Keyword(s):  
Compressive Strength ◽  
Soil Sample ◽  
Unconfined Compressive Strength ◽  
Soil Samples ◽  
The Other ◽  
California Bearing Ratio ◽  
Lateritic Soil ◽  
Natural Soil ◽  
Engineering Property ◽  
Poor Soil

Abstract This study assesses stabilizing lateritic soil using Terrasil solution. Preliminary tests were carried out on six natural soil samples from three borrow pit locations-two soil samples from a particular borrow pit location, for the purpose of identification and classification. Soil samples 1 and 2 from borrow pit 3 were found to be poor, hence, needed stabilization. While the other four samples from borrow pits 1 and 2 were found to be good enough. Engineering property tests such as California Bearing Ratio (CBR), Unconfined Compressive Strength (UCS) and Compaction tests were performed on both the natural soil samples and the stabilized lateritic soil samples which were stabilized by adding terrasil solution in percentages ranging from 0% to 16% at 2% interval. The results showed that the addition of terrasil solution enhanced the strength of the two soil samples from borrow pit 3. For soil sample 1, the unsoaked CBR values increased from 8.4% at 0% to optimum value of 30.3% at 12% terrasil solution, while for soil sample 2, the unsoaked CBR values increased from 6.2% to optimum value of 32.0% at 12% terrasil solution. It was therefore concluded that the terrasil solution serves as a cheap and effective stabilizing agent for poor soil.

scholarly journals Geotechnical Properties of Lateritic Soil Stabilized with Banana Leaves Ash

2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Emeka Segun Nnochiri ◽  
Olufikayo Aderinlewo
Keyword(s):  
Compressive Strength ◽  
Unconfined Compressive Strength ◽  
Geotechnical Properties ◽  
Lateritic Soil ◽  
Natural State ◽  
Natural Soil ◽  
Stabilizing Agents ◽  
University Of Technology ◽  
Strength Tests ◽  
Banana Leaves

This paper investigated the geotechnical properties of lateritic soil with banana leaves ash. The natural soil sample was gotten from the Federal University of Technology, Akure (FUTA), Nigeria, and were subjected to preliminary soil tests such as natural moisture content, specific gravity and atterberg limit at its natural state. Engineering tests such as compaction, california bearing ratio and unconfined compressive strength tests  were also carried out on the lateritic soil at their natural states and at when the banana leaves ashes were added to the soil at varying proportions of 2, 4, 6, 8 and 10% by weight of soil. The result of the strength tests showed that the banana leaves ash enhanced the strength of the lateritic soil. The unsoaked CBR value of the soil at its natural state was 10.42 % and it got to optimum value of  28.10% by addition of 4% banana leaves ash by weight of soil. The unconfined compressive strength improved from 209.18 kN/m2  at natural state to 233.77 kN/m 2  at 4% banana leaves ashes. It was therefore concluded that the banana leaves ash satisfactorily act as cheap stabilizing agents for subgrade purposes.

scholarly journals Geotechnical Properties of Lateritic Soil Stabilized with Ground-Nut Husk Ash

2016 ◽  
Vol 2 (11) ◽  
pp. 568-575 ◽  
Author(s):  
Emeka Segun Nnochiri ◽  
Olumide Moses Ogundipe
Keyword(s):  
Soil Sample ◽  
Unconfined Compressive Strength ◽  
Road Construction ◽  
Optimum Moisture Content ◽  
Geotechnical Properties ◽  
Lateritic Soil ◽  
Natural Soil ◽  
Dry Density ◽  
Engineering Property ◽  
Maximum Dry Density

This study assesses the geotechnical properties of lateritic soil stabilized with Ground-nut Husk Ash. Preliminary tests were carried out on the natural soil sample for identification and classification purposes, while consistency limits tests were thereafter carried out as well. Engineering property tests such as California Bearing Ratio (CBR), Unconfined Compressive Strength (UCS) and compaction tests were performed on both the natural soil sample and the stabilized lateritic soil, which was stabilized by adding Ground-nut Husk Ash, GHA, in percentages of 2, 4, 6, 8 and 10 by weight of the soil.  The results showed that the addition of GHA enhanced the strength of the soil sample. The Maximum Dry Density (MDD) reduced from 1960 kg/m3 to 1760 kg/m3 at 10% GHA by weight of soil. The Optimum Moisture Content (OMC) increased from 12.70% to 14.95%, also at 10% GHA by weight of soil. The unsoaked CBR values increased from 24.42% to 72.88% finally, the UCS values increased from 510.25 kN/m2 to 1186.46 kN/m2, for both CBR and UCS, the values were at 10% GHA by weight of soil. It was therefore concluded that GHA performs satisfactorily as a cheap stabilizing agent for stabilizing lateritic soil especially for subgrade and sub base purposes in road construction.

Relation of Microstructure and Unconfined Compression Strength of Soil Stabilized with TerraZyme

2013 ◽  
Vol 664 ◽  
pp. 760-763 ◽  
Author(s):  
Xin Zhang ◽  
Xin Ping Zhang ◽  
Hong Tao Peng ◽  
Qiang Xia ◽  
Jun Wang
Keyword(s):  
Compressive Strength ◽  
Soil Sample ◽  
Compression Strength ◽  
Unconfined Compressive Strength ◽  
Unconfined Compression Strength ◽  
Unconfined Compression ◽  
Soil Stabilizer ◽  
Stabilized Soil ◽  
Relationship Of ◽  
The Relationship

TerraZyme as an enzymatic soil stabilizer was used in this research. The stabilized soil was mixed with TerraZyme in proper proportion to determine the relationship of unconfined compression strength and microstructure caused by the introduction of TerraZyme. The experimental results show that the unconfined compressive strength of stabilized soil with TerraZyme added is higher than that without TerraZyme. The micrographs of scanning election microscopy (SEM) indicate that the microstructure of the stabilized soil sample with TerraZyme added is denser than that without TerraZyme. This is because the particles of stabilized soil sample treated with TerraZyme are more coarse and blocky than those untreated with TerraZyme. The stabilized soil is with fewer pores than that without TerraZyme. This kind of compact microstructure should be the basis of higher unconfined compressive strength of stabilized soil with TerraZyme added.

scholarly journals EFFECTS OF SNAIL SHELL ASH ON LIME STABILIZED LATERITIC SOIL

2018 ◽  
Vol 30 (2) ◽  
Author(s):  
Emeka Segun Nnochiri ◽  
Olumide Moses Ogundipe ◽  
Helen Oluyemisi Emeka
Keyword(s):  
Particle Size ◽  
Soil Sample ◽  
Unconfined Compressive Strength ◽  
Waste Product ◽  
Hydrated Lime ◽  
Atterberg Limits ◽  
Lateritic Soil ◽  
Natural Soil ◽  
Snail Shell ◽  
Optimal Amount

As a result of increase in population and socioeconomic activities, the rate of production of wastes over the years has been on the rise. A major approach towards managing these wastes is to consider the possibility of waste recycle and minimization. This study assesses the effects of Snail Shell Ash (SSA), a product of snail shell-which itself is a waste product, on lime stabilized lateritic soil. Preliminary tests such as; specific gravity, Atterberg limits and particle size distribution tests were carried out on natural soil sample, for the purposes of identification and classification. The soil sample based on AASHTO classification was classified as A-7-5. Hydrated lime was added to the soil sample at varying proportions of 2, 4, 6, 8 and 10% by weight of soil, thereafter, each of the mixes was subjected to Atterberg limits tests to get the optimal amount of lime required, which was 10% lime because it was at this amount of lime that the least value of plasticity index was gotten. The Snail Shell Ash was later added to the lime-treated lateritic soil at proportions of 2, 4, 6, 8 and 10%. Each of the mixes was subjected to compaction, California bearing ratio (CBR), Atterberg limits and unconfined compressive strength (UCS) tests. Results from these tests showed improvement in soil properties, also, the values of the CBR and UCS increased considerably. At soil natural states, CBR values of 9.5% and 5.5% increased to 67.20% and 53.60% at 6% SSA at unsoaked and soaked states respectively. Also, UCS value of 190 kN/m2 at soil natural increased to 380kN/m2 at 6% SSA. It can be concluded that the SSA performs satisfactorily as a cheap complement for lime in stabilizing lateritic soil.

scholarly journals Use of Factory-Waste Shingles and Cement Kiln Dust to Enhance the Performance of Soil Used in Road Works

2009 ◽  
Vol 2009 ◽  
pp. 1-9 ◽  
Author(s):  
Aly Ahmed ◽  
Medhat Shehata ◽  
Said Easa
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Unconfined Compressive Strength ◽  
Capillary Rise ◽  
Cement Kiln Dust ◽  
Cement Kiln ◽  
Fine Grained Soil ◽  
Stabilized Soil ◽  
Cement Manufacturing ◽  
Kiln Dust

An experimental work was conducted to study the use of factory-waste roof shingles to enhance the properties of fine-grained soil used in road works. Cement kiln dust (CKD), a cogenerated product of Portland cement manufacturing, was used as a stabilizing agent while the processed shingles were added to enhance the soil tensile strength. The effects of shingles on strength and stability were evaluated using the unconfined compressive strength, splitting tensile strength, and California Bearing Ratio (CBR) tests. The results showed that the use of CKD alone resulted in a considerable increase in the unconfined compressive strength but had a small effect on the tensile strength. The addition of shingles substantially improved the tensile strength of the stabilized soil. A significant reduction in the capillary rise and a slight decrease in the permeability were obtained as a result of shingle addition. An optimal shingle content of 10% is recommended to stabilize the soil.

New prediction models for unconfined compressive strength of geopolymer stabilized soil using multi-gen genetic programming

Measurement ◽  
2018 ◽  
Vol 113 ◽  
pp. 99-107 ◽  
Author(s):  
Sepehr Soleimani ◽  
Shabnam Rajaei ◽  
Pengcheng Jiao ◽  
Arash Sabz ◽  
Sina Soheilinia
Keyword(s):  
Compressive Strength ◽  
Genetic Programming ◽  
Unconfined Compressive Strength ◽  
Prediction Models ◽  
Stabilized Soil

scholarly journals EFFECT OF LOADING CONDITION DURING CURING PERIOD ON UNCONFINED COMPRESSIVE STRENGTH OF CEMENT STABILIZED SOIL

2005 ◽  
pp. 211-216 ◽  
Author(s):  
Motoyuki SUZUKI ◽  
Takeshi TAGUCHI ◽  
Tetsuo FUJIMOTO ◽  
Yoko KAWAHARA ◽  
Tetsuro YAMAMOTO ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Unconfined Compressive Strength ◽  
Loading Condition ◽  
Curing Period ◽  
Stabilized Soil

Correlation between Unconfined Compressive Strength and Penetration Index Obtained from DCP Tests for Cemented Lateritic Soils

2019 ◽  
Vol 814 ◽  
pp. 399-403
Author(s):  
Anuchit Uchaipichat
Keyword(s):  
Compressive Strength ◽  
Unconfined Compressive Strength ◽  
Cement Content ◽  
Lateritic Soil ◽  
Test Results ◽  
Cone Penetration ◽  
Penetration Index ◽  
Curing Period ◽  
Cemented Soils ◽  
The Relationship

This paper presents the relationship between the dynamic cone penetration (DCP) test results and the unconfined compressive strength of lateritic cemented soils. A series of DCP tests and unconfined compressive strength was performed on lateritic cemented soil. The soils sample used in this study was lateritic soil. The test results for the DCP tests are presented in terms of penetration index. It can be observed that the penetration index decreased with increasing curing period and cement content. Moreover, the unconfined compressive strength of cemented soils increased with curing period and cement content. The relationship between unconfined compressive strength and penetration index is presented. A unique relationship for unconfined compressive strength can be obtained.

Effect of Glutinous Rice Paste on Compressive Strength of Lime-Stabilized Soil

2011 ◽  
Vol 280 ◽  
pp. 5-8
Author(s):  
Hong Tao Peng ◽  
Qi Zhang ◽  
Nai Sheng Li ◽  
De Fa Wang
Keyword(s):  
Compressive Strength ◽  
Soil Sample ◽  
Experimental Results ◽  
Box Dimension ◽  
Sem Images ◽  
Sem Image ◽  
Glutinous Rice ◽  
Stabilized Soil ◽  
The Difference ◽  
The One

The lime-stabilized soil was mixed with glutinous rice paste in proper proportion to determine the difference in compressive strength caused by introduction of glutinous rice paste. The experimental results show that the unconfined compressive strengths of lime-stabilized soil specimens treated with glutinous rice paste are all higher than those without treated at different curing times (7d, 28d, 40d, and 60d). The calculated fractal box dimension value of SEM image of lime stabilized soil sample is close to and slightly less than the one treated with glutinous rice paste. The SEM images show that the microstructure of lime-stabilized soil treated with glutinous rice paste is denser than that without treated. This kind of denser microstructure should be the basis of higher unconfined compressive strengths of the specimens treated with glutinous rice paste.

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