Suitability of Shale Treated with Palm Kernel Shell Ash and Pulverized Palm Kernel Shell As Landfill Liners at Nguzu Edda, Southeastern Nigeria

2021 ◽  
Vol 47 (3) ◽  
pp. 536-545
Author(s):  
B. O. Enya ◽  
C. A. Amagu
Keyword(s):  
Energy Levels ◽  
Palm Kernel ◽  
Dry Weight ◽  
Shrinkage Strain ◽  
Dry Density ◽  
Maximum Dry Density ◽  
Southeastern Nigeria ◽  
Landfill Liner ◽  
Palm Kernel Shell ◽  
Alternative Means

Wastes are mostly disposed of in landfills, which pose threat to soil and groundwater as a result of percolation of leachate. Therefore, barrier soils are required for the lining of a landfill to prevent seepage of leachate into the surrounding groundwater system. In this regard, the suitability of ten shale samples treated with 0-12 % (increments of 2 %) proportion of palm kernel shell ash (PKSA) and pulverized palm kernel shell (PPKS) by dry weight of the shale samples were evaluated for uses as landfill liner. The samples were subjected to series of geotechnical tests to determine the index properties, and strength characteristics of the natural and treated shale using West African standard (WAS) and Modified AASHTO (MAS) compactive energy levels for comparison purposes. The shale was classified as A-7-5. The atterberg limits test results show that liquid and plastic limits generally decreased, while the plasticity index (PI) increased with increase in PKSA and PPKS contents. The results also demonstrated that maximum dry density (MDD), volumetric shrinkage strain (VSS) and hydraulic conductivity decreases significantly while optimum moisture content (OMC) increases with increase in PKSA and PPKS contents for the both energy levels. The maximum strength of 380.30 and 448.70 KPa were recorded at 4 % of the stabilizers. The findings affirmed that the samples met the requirements for landfills liner, although PPKS was more effective than PKSA for both energy levels. Moreover, the addition of PKSA and PPKS to liners can also be an alternative means of its disposal.

scholarly journals Potentials of Processed Palm Kernel Shell Ash (Local Stabilizer) and Model Prediction of CBR and UCS Values of Ntak Clayey Soils in Akwa Ibom State, Nigeria

2020 ◽  
Vol 5 (12) ◽  
pp. 96-106
Author(s):  
S. A. Assam ◽  
J. C. Agunwamba
Keyword(s):  
Construction Materials ◽  
Palm Kernel ◽  
Strong Relationship ◽  
Soil Improvement ◽  
Liquid Limit ◽  
Dry Density ◽  
Maximum Dry Density ◽  
Palm Kernel Shell ◽  
Significant Difference ◽  
Maximum Improvement

It is very essential to improve on the study of stabilization, as we investigate the potential of Processed Palm Kernel Shell Ash (PPKSA) as a Local stabilizer in stabilizing clay soil. The ever-increasing cost of construction materials in Nigeria and other developing countries has created the need for improved research into locally and readily available materials and also on how to convert these local materials such as Palm Kernel Shell Ash for use in construction and soil improvement. To achieve this; soil samples were collected from Ntak – Uyo, Akwa Ibom State classified as an A-2-5 soil on AASHTO and CL on UNIFIED SYSTEM of classification, were sieved and passed through sieve No. 36. It was then stabilized with (2-7%) Processed Palm Kernel Shell Ash (PPKSA) by weight of the dry soil. The investigation includes evaluation of the engineering and geotechnical properties of the soil. The results obtained shows that the increase in PPKSA content at 4.5% increase the Optimum Moisture Content (OMC) by 16.74%, Maximum Dry Density (MDD) by 1.89 gm/cm3, Unconfined Compressive Strength (UCS) by 433.12 kN/m2, California Bearing Ratio (CBR) by 55% for unsoak and 36% for soak while there was a significant reduction in the value of Liquid Limit (LL) by 30.92% and Plasticity Index (PI) by 10%. The predictive models were developed, and these models showed a good correlation with experimental results in the control tests as they possess a reasonable significant difference and a strong relationship between the measured and predicted values. The study concluded that PPKSA can be used to improve the properties of soil for construction purposes and 4.5% PPKSA content was observed to yield maximum improvement for OMC, MDD, CBR and UCS values.

scholarly journals Compaction and Plasticity Comparative Behaviour of Soft Clay Treated with Coarse and Fine Sizes of Ceramic Tiles

2018 ◽  
Vol 34 ◽  
pp. 01012 ◽  
Author(s):  
Mohammed Ali Mohammed Al-Bared ◽  
Aminaton Marto ◽  
Indra Sati Hamonangan Harahap ◽  
Fauziah Kasim
Keyword(s):  
Soil Stabilization ◽  
Soft Soil ◽  
Soft Clay ◽  
Cost Effective ◽  
Dry Weight ◽  
Dry Density ◽  
Ceramic Tiles ◽  
Marine Clay ◽  
Maximum Dry Density ◽  
Stiff Soil

Recycled blended ceramic tiles (RBT) is a waste material produced from ceramic tile factories and construction activities. RBT is found to be cost effective, sustainable, environmental-friendly and has the potential to be used as an additive in soft soil stabilization. Recent reports show that massive amounts of RBT are dumped into legal or illegal landfills every year consuming very large spaces and creating major environmental problems. On the other hand, dredged marine clay obtained from Nusajaya, Johor, Malaysia has weak physical and engineering characteristics to be considered as unsuitable soft soil that is usually excavated, dumped into landfills and replaced by stiff soil. Hence, this study investigates the suitability of possible uses of RBT to treat marine clay. Laboratory tests included Standard proctor tests and Atterberg limits tests. The plasticity of marine clay was evaluated by adding 10%, 20%, 30% and 40% of 0.3 mm RBT. In addition, the compaction behaviour of treated marine clay was compared by adding two different sizes (0.3 mm and 1.18 mm diameter) of RBT. For both coarse and fine sizes of RBT, 10%, 20%, 30% and 40% of the dry weight of the soft clay were added. The mixture of each combination was examined in order to evaluate the Maximum Dry Density (MDD) and the optimum moisture content (OMC) for the treated soft clay. MDD and OMC for soft untreated samples were 1.59 Mg/m3 and 22%, respectively. Treated samples with 10%, 20%, 30% and 40% of 0.30 mm size RBT resulted in a significant reduction of OMC ranged from 19 to 15% while MDD resulted in increment ranged from 1.69 to 1.77 Mg/m3. In addition, samples treated with 10%, 20%, 30% and 40% of 1.18 mm size RBT resulted in major reduction of OMC ranged from 15 to 13.5% while MDD increased effectively from 1.75 to 1.82 Mg/m3. For all mix designs of soft clay-RBT, MDD was gradually increasing and OMC was sharply reducing with further increments of both sizes of RBT.

scholarly journals Engineering behaviour of stabilized laterite and kaolin using lignin

2018 ◽  
Vol 250 ◽  
pp. 01008
Author(s):  
Tuan Noor Hasanah Tuan Ismail ◽  
Siti Aimi Nadia Mohd Yusoff ◽  
Ismail Bakar ◽  
Devapriya Chitral Wijeyesekera ◽  
Adnan Zainorabidin ◽  
...  
Keyword(s):  
Moisture Content ◽  
Unconfined Compressive Strength ◽  
Laboratory Tests ◽  
Dry Weight ◽  
Optimum Moisture Content ◽  
Soil Samples ◽  
Dry Density ◽  
Laterite Soil ◽  
Maximum Dry Density ◽  
Steady Rate

Soils at many sites do not always have enough strength to bear the structures constructed over them and some of the soil may need to be stabilized in order to improve their geotechnical properties. In this paper, routine laboratory tests were critically carried out to investigate the efficacy of lignin in improving the strength behaviour of the soils. Two different soil samples (laterite and kaolin) were studied and mixed with different proportions of lignin (2% and 5% of dry weight of soil), respectively. Unconfined Compressive Strength (UCS) characteristics evaluated in this study were done on samples at their maximum dry density and optimum moisture content (obtained from compaction tests). The UCS tests on all the specimens were carried out after 0, 7, 15, 21 and 30 days of controlled curing. The research results showed that the addition of lignin into kaolin reduced its maximum dry density while giving progressively higher optimum moisture content. Contrarily, with the laterite soil, both maximum dry density and optimum moisture content simultaneously increased when lignin was added into the soils. The UCS results showed that the the stabilized laterite with 2% lignin continued to gain strength significantly at a fairly steady rate after 7 days. Unfortunately, lignin did not show a significant effect in kaolin.

scholarly journals Using Nanomaterials in Stabilization of Soil for Oil Infrastructures

2020 ◽  
Vol 10 (3) ◽  
pp. 36-53
Author(s):  
Dr. Zaid Hameed Majeed ◽  
Eng. Kadhim Jawad Aubais ◽  
Dr. Mohd Raihan Taha
Keyword(s):  
Compressive Strength ◽  
Unconfined Compressive Strength ◽  
Soil Stabilization ◽  
Dry Weight ◽  
Environmental Benefits ◽  
Al2o3 Content ◽  
Dry Density ◽  
Maximum Dry Density ◽  
Geotechnical Characteristics ◽  
Compressible Soil

The design foundations  of storage tanks for oil industry experiences significant problems due to the widespread occurrence of weak and compressible soil which resulted in foundation failure. In this study, soft soils were taken from two locations and mixed with three types of nanoparticles which were nano-alumina (nano Al2O3), nano-copper (nano CuO), and nano-magnesium (nano MgO). Nanomaterials were incorporated in small percentage (less than 1%) by dry weight of soil. The tested geotechnical characteristics included the water content, dry density, and the unconfined compressive strength. The results showed significant enhancements in the maximum dry density and unconfined compressive strength. The level of enhancement depended on the type of nanomaterials and the contents. Improved strength and hardening properties were shown with the utilization of nano CuO material in comparison to the soil samples with the other nanomaterials additions, with its optimum addition of 0.7% provided an increment rate of 662.7% while the optimum nano CuO which is about 1% showed a 532% increasing rate in the compressive strength of S1 soil. It was noted that the maximum dry density and unconfined compressive strength enhanced with the increase in the nanoparticles content until reaching a percentage in which the strength decreased. The optimum content of the nano MgO was 0.3% while the optimum nano Al2O3 content was about 0.3% for soil S1 and was about 0.1% for soil S2. The presence of nanomaterials in excessive contents caused agglomeration of particles which had negative influences on mechanical characteristics of the soils. Generally, the incorporation of finer particles like nanoparticles even with low amount would improve the geotechnical characteristics of soils with the consideration of the potential environmental benefits, these combined admixtures are intended to lower the cost and become a more sustainable and environmental alternative for soil stabilization

scholarly journals SHRINKAGE AND CREEP CHARACTERISTICS OF PALM KERNEL SHELL CONCRETE

2020 ◽  
Vol 26 (1) ◽  
pp. 47-56
Author(s):  
ADETUKASI ADESOLA OLAYINKA ◽  
IKPONMWOSA EFE EWAEN
Keyword(s):  
Research Work ◽  
Palm Kernel ◽  
Shrinkage Strain ◽  
Partial Replacement ◽  
Normal Concrete ◽  
Palm Kernel Shell ◽  
Mix Proportion ◽  
Creep Characteristics ◽  
Shrinkage And Creep ◽  
Creep And Shrinkage

This research work evaluates the shrinkage and creep characteristics of concrete containing Palm Kernel Shell (PKS) as partial replacement of natural coarse aggregate. Concrete was mixed at 0.55 water-cement ratio, mix proportion of 1:1:2 and percentage replacement of natural aggregate with PKS at 0%, 25 % and 50%. The creep and shrinkage results of Palm Kernel Shell Concrete (PKSC), increased as the percentage content of PKS increased in the concrete. The maximum creep strain observed for normal concrete, 25 % and 50 % PKS content were 0.00018 mm/m, 0.00057 mm/m and 0.00094 mm/m respectively. The maximum total shrinkage strain recorded for 0%, 25% and 50 % PKS content was 0.00102 mm/m, 0.00183 mm/m and 0.00247 mm/m respectively.

Behavior of Cohesive Soil Reinforced by Polypropylene Fiber

2020 ◽  
Vol 38 (6A) ◽  
pp. 801-812
Author(s):  
Mohammed A. Al-Neami ◽  
Falah H. Rahil ◽  
Yaseen H. Al-Ani
Keyword(s):  
Soil Stabilization ◽  
Critical Role ◽  
Polypropylene Fiber ◽  
Dry Weight ◽  
Cohesive Soil ◽  
Dry Density ◽  
Maximum Dry Density ◽  
Entire Structure ◽  
Optimum Water Content ◽  
Optimum Water

For any land-based structure, the foundation is very important and has to be strong to support the entire structure. In order for the foundation to be strong, the soil underneath it plays a very critical role. Some projects where the soil compacted by modifying energy is insufficient to achieve the required results, so the additives as a kind of installation and reinforcement are used to achieve the required improvement. This study introduces an attempt to improve cohesive soil by using Polypropylene Fiber instead of conventional kinds used in soil stabilization. Three different percentages (0.25%, 0.5%, and 0.75% by dry weight of soil) and lengths (6, 12, and 18) mm of fiber are mixed with cohesive as a trial to enhance some properties of clay. The results of soil samples prepared at a dry density at three different water conditions (optimum water content, dry side, and wet side) showed that the increase of the percentage and length of polypropylene fiber causes a reduction in the maximum dry density of soils. Soil cohesion increases with the increase of PPF up to 0.5% then decreased. The length of Polypropylene fiber has a great effect on the cohesion of soil and adding 0.5% Polypropylene fibers with a length of 18mm to the soils consider the optimum mix for design purposes to improve the soil. Finally, the soil reinforced by PPF exhibits a reduction in the values of the compression ratio (CR) and accelerates the consolidation of the soil.

Strength Enhancement Potential of Spent Calcium Carbide on Fine Grained Lateritic Soil

2021 ◽  
Vol 47 (1) ◽  
pp. 156-163
Author(s):  
Oluremi Johnson Rotimi ◽  
Bamigboye Gideon Olukunle ◽  
Afolayan Olaniyi Diran ◽  
B. Iyanda Olayinka ◽  
A. Bello Usman
Keyword(s):  
Calcium Carbide ◽  
Dry Weight ◽  
Strength Properties ◽  
Geotechnical Properties ◽  
California Bearing Ratio ◽  
Lateritic Soil ◽  
Dry Density ◽  
Maximum Dry Density ◽  
British Standard ◽  
Pavement Construction

Effect of spent calcium carbide (SCC) on index and strength properties of lateritic soil at differ- ent compactive efforts was assessed in this study as potential means of improving the geotechnical properties of the subsoil as well as disposing of SCC as waste. SCC was admixed with the soil using 0 to 10 % by dry weight of soil at an incremental rate of 2%. The following tests were carried out on the samples: specific gravity, Atterberg limit, particle size distribution, compaction, and California bearing ratio (CBR). Compaction and California Bearing Ratio (CBR) tests were carried out using British Standard light (BSL), West African Standard (WAS), and British Standard heavy (BSH) on both the natural and stabilized soil samples. From the investigation, atterberg limits show a reduction in the plasticity index with increasing content of SCC. The maximum dry density of the soil decreased with increasing SCC content and increased with an increase in compactive energies (BSL<WAS<BSH), while and optimum moisture content (OMC) increased correspondingly. Also, soaked and unsoaked CBR values of the stabilized lateritic soil showed an increase in strength with higher compactive effort, and SCC content up to 4% SCC addition and after that decreased in value. Based on these results, spent calcium carbide improved the geotechnical properties of this lateritic soil, and 4% SCC is recommended for its stabilization as subgrade material for pavement construction, thereby serving as an effective method of disposing SCC towards promoting a green and sustainable environment.

scholarly journals Experimental Study on the Utilization of Fine Steel Slag on Stabilizing High Plastic Subgrade Soil

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Hussien Aldeeky ◽  
Omar Al Hattamleh
Keyword(s):  
Steel Slag ◽  
Dry Weight ◽  
Geotechnical Properties ◽  
Engineering Properties ◽  
Dry Density ◽  
Maximum Dry Density ◽  
Geotechnical Characteristics ◽  
Subgrade Soil ◽  
Free Swell ◽  
High Plastic

The three major steel manufacturing factories in Jordan dump their byproduct, steel slag, randomly in open areas, which causes many environmental hazardous problems. This study intended to explore the effectiveness of using fine steel slag aggregate (FSSA) in improving the geotechnical properties of high plastic subgrade soil. First soil and fine steel slag mechanical and engineering properties were evaluating. Then 0%, 5%, 10%, 15%, 20%, and 25% dry weight of soil of fine steel slag (FSSA) were added and mixed into the prepared soil samples. The effectiveness of the FSSA was judged by the improvement in consistency limits, compaction, free swell, unconfined compression strength, and California bearing ratio (CBR). From the test results, it is observed that 20% FSSA additives will reduce plasticity index and free swell by 26.3% and 58.3%, respectively. Furthermore, 20% FSSA additives will increase the unconfined compressive strength, maximum dry density, and CBR value by 100%, 6.9%, and 154%. By conclusion FSSA had a positive effect on the geotechnical properties of the soil and it can be used as admixture in proving geotechnical characteristics of subgrade soil, not only solving the waste disposal problem.

scholarly journals Blending Lime with Sugarcane Bagasse Ash for Stabilizing Expansive Clay Soils in Subgrade

2021 ◽  
Vol 53 (5) ◽  
pp. 210510
Author(s):  
Zalwango Teddy ◽  
Bazairwe Annette ◽  
Safiki Ainomugisha
Keyword(s):  
Sugarcane Bagasse ◽  
Expansive Soils ◽  
Construction Material ◽  
Dry Weight ◽  
Clay Soils ◽  
Dry Density ◽  
Expansive Clay ◽  
Maximum Dry Density ◽  
Slaked Lime ◽  
Sugarcane Bagasse Ash

Expansive soils constitute one of the most frequently encountered and challenging soils to geotechnical engineers. This study assessed the possibility of utilizing sugarcane bagasse ash (SCBA) by partially replacing slaked lime to stabilize expansive clay soils. The soil samples were picked from Muduuma area, Mpigi district, Central Uganda. Experimental tests of linear shrinkage (LS), plasticity index (PI), and California Bearing Ratio (CBR) were conducted on both unstabilized soil and SCBA-lime treated samples. The SCBA-lime mixture was prepared by partially replacing 5% lime with SCBA at 2, 4, 6, 8, and 10% by weight. Hence, SCBA was used in proportions of 0.1, 0.2, 0.3, 0.4, and 0.5% by dry weight of the soil. The addition of lime greatly lowered the PI and LS, which later increased with the addition of the SCBA. The maximum dry density was generally lowered with the addition of lime and SCBA, from 1.87 g/cm3 to 1.58%. The CBR increased with SCBA-lime addition from 12% for unstabilized soil up to 48% at 6% SCBA replacement. The optimum lime replacement was established as 6% SCBA lime replacement based on CBR criteria. At the 6% optimum, the optimum moisture content (OMC) was 1.7 Mg/m3, LS was 10%, and PI was 20%. This study demonstrated the potentiality of SCBA as a novel construction material, specifically by partially reducing the usage of the unsustainable, non-environmentally friendly lime. It is also expected to enable using currently unsuitable clays from the region.

scholarly journals Verification of the effect of Raw Materials Mill Dust on soil stabilization: An experimental study

2020 ◽  
Vol 9 (1) ◽  
pp. 172-177
Keyword(s):  
Soil Stabilization ◽  
Raw Materials ◽  
Physical And Mechanical Properties ◽  
Dry Weight ◽  
Plasticity Index ◽  
Cement Kiln ◽  
Dry Density ◽  
Maximum Dry Density ◽  
Pavement Maintenance ◽  
Optimum Water Content

Cement plants produce large quantities of dust, which is an important source of pollution. Among these pollutants is raw materials mill dust (RMMD), it is a dust produced during the grinding of raw materials. RMMD differs in chemical composition from cement kiln dust (CKD), where CKD is a by-product that collects in the electrostatic filters of a cement kiln. A lot of studies have been done around the world to find effective ways to recycle CKD and use it again in soil stabilization to avoid the failure of the entire pavement in the future as well as an economical and environmental solution, while there is a dearth of research done on RMMD. In this study, the performance of a weak subgrade for one of the sites in Aleppo city was examined, where its physical and mechanical properties (plasticity index, maximum dry density, optimum water content, and California bearing ratio (CBR)), were determined. Then RMMD was added to the subgrade samples according to five ratios 0, 5, 10, 15, and 20% of the dry weight of the soil. The research concluded that adding the RMMD to the weak subgrade by 20% of its dry weight is the optimal ratio, improved its performance, as the plasticity index decreased by 13%, and the CBR increased up to 63 %. Thus, the bearing capacity increases, it saves costs and reduces future pavement maintenance.

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