scholarly journals Stabilization of Lateritic Soil Admixed with Maize Husk Ash

2018 ◽  
Vol 1 (March 2018) ◽  
Author(s):  
J.R Oluremi ◽  
K.O Fagbenro ◽  
O.M Osuolale ◽  
A.M Olawale
Keyword(s):  
Construction Materials ◽  
Particle Size Analysis ◽  
Liquid Limit ◽  
Soil Samples ◽  
Grain Size Analysis ◽  
Lateritic Soil ◽  
Size Analysis ◽  
Unconfined Compression Test ◽  
Road Pavement ◽  
Stabilized Soil

Lateritic soil is one of the major construction materials in road pavement. However, obtaining lateritic soil with sufficient strength is difficult, which may necessitate its improvement by stabilization. Lateritic soil, in this study, was stabilized with upto 12% Maize Husk Ash (MHA) by weight of soil samples, with a view of improving its geotechnical properties and assessing it as subbase materials. Classification tests (particle size analysis, specific gravity, Atterbergs limits) and strength index tests (compaction, california bearing ratio (CBR), unconfined compression test (UCS) were performed on both the natural and the MHA-stabilized soil samples. The grain size analysis shows that the percentage passing No. 200 BS sieve was 47.7% for the natural lateritic soil and between 50 and 62.1% for MHA stabilized lateritic soil. The liquid limit, plastic limit and plasticity index are in the range of 61 to 76%, 28 to 53% and 16 to 37% respectively. Also, the maximum dry densities increased, while the optimum water content decreased with increase in the MHA content. The CBR value of the lateritic soil increased with MHA content up till 6% addition of MHA and thereafter decreased, while higher UCS value was obtained up till 3% and then decreased with increasing content of MHA. The results indicated that the MHA stabilized lateritic soil could only be used as subgrade and fill materials.

scholarly journals Engineering soil properties of Bhaktapur pottery

2017 ◽  
Vol 4 ◽  
pp. 38-40
Author(s):  
Ratna Shova Prajapati ◽  
Rameshwor Shrestha
Keyword(s):  
Clay Content ◽  
Liquid Limit ◽  
Soil Samples ◽  
Grain Size Analysis ◽  
Size Analysis ◽  
High Tendency ◽  
Specific Location ◽  
Plasticity Limit ◽  
Ceramic Manufacture ◽  
Engineering Soil

Pottery is one of the historic occupations of people of Bhaktapur. The tradition has been handed over to many successors, and the culture is still alive. Pottery in Bhaktapur municipality is concentrated in two parts namely; Suryamadi and Pottery-Square. The pottery work is adopted by ethnic group Prajapati, only they produce ceramic products in Bhaktapur municipality. Potters collect soil from specific location of Bhaktapur; Kamalbinayak, Nangakhel, Sipadol, and Tathali, which is suitable soil for ceramic manufacture. The soil samples from pottery site Suryamadi and Pottery-Square were collected. Grain size analysis, liquid limit and plasticity limit were tested. From the analysis, the soil sample from Pottery-Square was found to be finer than that from Suryamadi. Clay content and moisture holding capacity of the Suryamadi pottery work are greater than that of Pottery-Square pottery work. It shows that the Suryamadi pottery work had high tendency to get cracks and crumbled.

Characterization and Granulometric Correction Soil for the Production of Soil-Cement Blocks for Two Method, Particle Size and X-Ray Florescence to be Inserted in Phase Change Materials (PCMS)

2014 ◽  
Vol 798-799 ◽  
pp. 355-359 ◽  
Author(s):  
Valter Bezerra Dantas ◽  
U.U. Gomes ◽  
A.B. Vital ◽  
G.S. Marinho ◽  
Ariadne de Souza Silva
Keyword(s):  
Particle Size ◽  
Phase Change Materials ◽  
Clay Content ◽  
Particle Size Analysis ◽  
Liquid Limit ◽  
Size Analysis ◽  
X Ray ◽  
Soil Cement

This paper presents the results of tests for characterization of soil samples collected in Mossoró-RN, UFERSA-RN Campus (5 ° 12'34 .68 "South latitude, 37 ° 19 '5.74 "west longitude), for the purpose of producing soil-cement for the manufacture of pressed blocks. Objective of improving the quality of soil-cement, and provide conditions for the use of the soil making it ideal for the production of soil-cement block. Tests of compaction, particle size analysis, plastic limit, liquid limit and correct particle size, X-ray fluorescence and morphology by scanning electron microscopy (SEM). It was concluded that the soil needs correction particle size, due to the high clay content. The method combined grading, sieving, sedimentation and blooming X-ray as the fastest and most accurate in correcting soil particle size.

scholarly journals Improvement of cement stabilized structural lateritic with pulverized snail shell

2019 ◽  
Vol 14 (2) ◽  
pp. 95-106
Author(s):  
Oluwaseun Adetayo ◽  
Olugbenga Amu ◽  
Sunday Alabi
Keyword(s):  
Cement Content ◽  
Soil Classification ◽  
Soil Samples ◽  
Lateritic Soil ◽  
Partial Replacement ◽  
Dry Density ◽  
Maximum Dry Density ◽  
Snail Shell ◽  
Foundation Construction ◽  
Stabilized Soil

AbstractThis study investigated the suitability of pulverized snail shell (PSS) as partial replacement of cement stabilized soil in foundation constructions. Preliminary and engineering tests were carried out on the soil samples. The optimum cement content fixed at 11% in correlation to Unified Soil Classification System, the PSS was introduced at varying percentages of 2%, 4%, 6%, 8% and 10%. Results revealed that, addition of PSS and 11% cement to lateritic soil caused a reduction in both liquid limits and plasticity index and an increased in plastic limits for all samples. Engineering tests showed the maximum dry density at optimum cement increased from 1493.34 ± 103.58 kg.m−3 to 1632 ± 435.81 kg.m−3 for sample A; 1476.77 ± 367.51 kg.m−3 to 1668 ± 202.58 kg.m−3 for sample B; 1460.77 ± 623.58 kg.m−3 to 1651 ± 135.45 kg.m−3 for sample C. The CBR recorded highest value at 4%PSS optimum cement for all samples. The addition of pulverized snail shell increased the strength of cement stabilized lateritic soil for structural foundation construction.

Influence of Soft Clay on Slope Stability

2015 ◽  
Vol 754-755 ◽  
pp. 463-467
Author(s):  
Zuhayr Md Ghazaly ◽  
Mustaqqim Abdul Rahim ◽  
Nur Fitriah Isa ◽  
Liyana Ahmad Sofri ◽  
Muhammad Azizi Azizan ◽  
...  
Keyword(s):  
Slope Stability ◽  
Soft Clay ◽  
Soil Strength ◽  
Soil Samples ◽  
Grain Size Analysis ◽  
Unit Weight ◽  
Size Analysis ◽  
Time Range ◽  
High Water Content ◽  
Major Disaster

Slope stability is very important on designing a safe slope. If this were to be taken lightly by the engineer, major disaster will occur that results in lost of lives. Each engineer is responsible to evaluate all aspects of design, especially when designing a slope gradient on the surface of soft clay. Soft clay containing high water content and if not planned properly, water from the soft clay will seep into the slope and causes reduction in soil strength. The purpose of this research was to investigate the effect of water absorption of soft clay on the stability of the slope. The objectives of this study were to analyze the soil strength when the soil were soaked in water to a set of different time range and to analyze slope stability on soft clay based on the infiltration of water from underground using PLAXIS software. In this study, soil samples were taken and laboratory experiments were carried out to obtain the unit weight, cohesion, and friction angle of the soil samples. The experiments involved were grain size analysis test and unconfined compression test. Data from the experiments will be used in PLAXIS software to obtain the factor of safety.

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