scholarly journals Potentials of Commonly Used Lime and Agricultural Waste in Stabilization of Sub-Grade Soil

2020 ◽  
Vol 9 (4) ◽  
pp. 1702-1705
Keyword(s):  
Soil Sample ◽  
Resilient Modulus ◽  
Agricultural Waste ◽  
Strength Properties ◽  
Ratio Test ◽  
Unconfined Compression Test ◽  
Waste Products ◽  
Proctor Test ◽  
Standard Proctor Test

Present study deals with the correlation between structural and mechanical characterization of sub-grade soils to increase the strength of soil for road. Clays are generally poor materials for foundations due to large lateral pressure and low resilient modulus. This investigation were carried out with waste products(Agricultural waste) like Rice Husk Ash (RHA) along with various percentages of locally available lime. X-ray fluorescence (XRF), California Bearing Ratio test (C.B.R), Standard Proctor Test, Unconfined Compression Test were done on these samples to characterize the structural and mechanical properties as significant increase in strength properties were observed in the soil samples upon mixing with RHA and lime. It was observed that soaking strength is around 16.8 for the Sample C-3 (Soil+9% RHA). Increase of strength may be due to the reduction of mica in the soil sample. Increase of the silica in the soil sample finally increase the strength and stability. The maximum soaking strength was observed 24.82 for the Sample C-7 ( Soil + 9 % RHA + 8 % Lime). It is obvious because the wt.% mica phase become minimum for this composition. XRF results also reveals that silica and calcium contents are maximum for this composition. So microstructural results revealed that the mica phase may play very important role for maintaining the strength and stability of the soil.

scholarly journals Characterization of a bacterial cellulose-silica nanocomposite prepared from agricultural waste products

2020 ◽  
Vol 7 (1) ◽  
pp. 015085 ◽  
Author(s):  
Wichai Soemphol ◽  
Panadda Charee ◽  
Sasiporn Audtarat ◽  
Supachai Sompech ◽  
Piyorot Hongsachart ◽  
...  
Keyword(s):  
Bacterial Cellulose ◽  
Agricultural Waste ◽  
Waste Products ◽  
Silica Nanocomposite

scholarly journals Isolation and Biochemical Characterization of Six Anaerobic Fungal Strains from Zoo Animal Feces

2021 ◽  
Vol 9 (8) ◽  
pp. 1655
Author(s):  
Marcus Stabel ◽  
Tabea Schweitzer ◽  
Karoline Haack ◽  
Pascal Gorenflo ◽  
Habibu Aliyu ◽  
...  
Keyword(s):  
Biochemical Characterization ◽  
Agricultural Waste ◽  
Carbon Sources ◽  
Fungal Growth ◽  
Anaerobic Fungi ◽  
Succinate Production ◽  
Waste Products ◽  
Growth Requirements ◽  
Animal Feces

Anaerobic fungi are prime candidates for the conversion of agricultural waste products to biofuels. Despite the increasing interest in these organisms, their growth requirements and metabolism remain largely unknown. The isolation of five strains of anaerobic fungi and their identification as Neocallimastix cameroonii, Caecomyces spec., Orpinomyces joyonii, Pecoramyces ruminantium, and Khoyollomyces ramosus, is described. The phylogeny supports the reassignment of Neocallimastix californiae and Neocallimastix lanati to Neocallimastix cameroonii and points towards the redesignation of Cyllamyces as a species of Caecomyces. All isolated strains including strain A252, which was described previously as Aestipascuomyces dubliciliberans, were further grown on different carbon sources and the produced metabolites were analyzed; hydrogen, acetate, formate, lactate, and succinate were the main products. Orpinomyces joyonii was lacking succinate production and Khoyollomyces ramosus was not able to produce lactate under the studied conditions. The results further suggested a sequential production of metabolites with a preference for hydrogen, acetate, and formate. By comparing fungal growth on monosaccharides or on the straw, a higher hydrogen production was noticed on the latter. Possible reactions to elevated sugar concentrations by anaerobic fungi are discussed.

scholarly journals Influence of Lime and Brick Dust on Compaction and Strength Properties of Clay Soil When Mixed With Ldpe

2019 ◽  
Vol 8 (10) ◽  
pp. 4088-4092
Keyword(s):  
Clay Soil ◽  
Clayey Soil ◽  
Strength Properties ◽  
Environmental Pollutant ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Cbr Test ◽  
Proctor Test ◽  
Standard Proctor Test ◽  
Brick Dust

Soil is an essential part of construction and forms a base for all the essential activities of construction. Soil is not same at all places and sometimes lacks in various properties. So, to improve its various qualities and to meet the engineering requirements like quality, durability, etc., we can achieve it by adding suitable admixtures such as, lime, cement, fly ash, plastic, gypsum etc. This not only improves the properties of soil but also reduces the quantities of waste in the environment. The aim of this study is to experimentally investigate the effects of adding Lime, Brick dust and Plastic and low density polyethylene to Clayey Soil. The low density polyethylene is a vital environmental pollutant and its biodegradation is the focus of the present study. The clay soil used was taken near Baddi, Himachal Pradesh. The optimum contents of Lime, Brick dust and LDPE in the Clay soil was found by Standard Proctor Test and CBR test, and the results showed by adding 20% lime , 8% Brick dust and 1.5% LDPE in the Clay soil, we get the maximum Bearing Capacity of the mixture.

scholarly journals Chemical Durability of Glass Containing Srp Waste - Leachability Characteristics, Protective Layer Formation, and Repository System Interactions

1981 ◽  
Vol 11 ◽  
Author(s):  
George G. Wicks ◽  
Barbara M. Robnett ◽  
W. Duncan Rankin
Keyword(s):  
Protective Layer ◽  
Layer Formation ◽  
Surface Layers ◽  
Waste Products ◽  
Safety And Reliability ◽  
Experimental Findings ◽  
Nuclear Waste Forms ◽  
Leaching Models ◽  
Surface Layer Formation

Leachability is one of the most important properties of solidified nuclear waste forms because it provides information on the performance and the subsequent safety and reliability that the waste products will possess. One of the most important experimental findings in the leachability field has been the discovery and subsequent detailed characterization of protective surface layers that form on waste glass during leaching. These layers can have a beneficial effect on product performance while in storage by improving productdurability with time. As a result of surface layer formation and the effects on subsequent product leaching characteristics, new qualitative and quantitative leaching models have recently been proposed.

scholarly journals Physio-Chemical Characterization of Indigenous Agricultural Waste Materials for the Development of Potting Media

2021 ◽  
Author(s):  
Sidra Kiran ◽  
Javed Iqbal ◽  
Subhan Danish ◽  
Allah Baksh ◽  
Syed Inam Ullah Shah Bukhari ◽  
...  
Keyword(s):  
Agricultural Waste ◽  
Chemical Characterization ◽  
Waste Materials ◽  
Potting Media

Empirical Equilibrium Study on Rice Husk and Eggshells as Low Cost Bioadsorbent for the Methylene Blue Removal

2014 ◽  
Vol 699 ◽  
pp. 221-226
Author(s):  
Nurul Hanim Razak ◽  
Md. Razali Ayob ◽  
M.A.M. Zainin ◽  
M.Z. Hilwa
Keyword(s):  
Methylene Blue ◽  
Rice Husk ◽  
Low Cost ◽  
Agricultural Waste ◽  
Textile Wastewater ◽  
Blue Dye ◽  
Rice Husks ◽  
Equilibrium Study ◽  
Porosity Characterization

Eggshells and rice husk, two types of notable agricultural waste were used as bioadsorbent to remove Methylene Blue dye (MBD) in aqueous solution. This study was to investigate the performance of these two bioadsorbents in removing MBD. The removal percentage, adsorption capacity, and porosity characterization were examined. The method applied was a physical filtration. UV-VIS Spectrophotometer was used to determine the efficiency of the bioadsorbents in MBD adsorption. The highest removal percentage at the most concentrated MBD were 51% and 98% for eggshells and rice husks respectively. Meanwhile the characterization of rice husks pore size and volume proves that higher adsorptivity towards dye compares to eggshells porosity. It was concluded that the eggshells and rice husks bioadsorbents was successful to treat industrial textile wastewater with rice husks as the most efficient bioadsorbent in removing MBD.

scholarly journals Utilization of Waste Materials in Soil Stabilization

2019 ◽  
Vol 9 (2) ◽  
pp. 4459-4463 ◽  
Keyword(s):  
Soil Stabilization ◽  
Soil Strength ◽  
Vital Role ◽  
Waste Materials ◽  
Sieve Analysis ◽  
Ratio Test ◽  
Index Test ◽  
Coir Fiber ◽  
Unconfined Compression Test ◽  
Materials Used

Soil strength plays a vital role in the construction field. The main purpose of this project is to stabilize red soil with the help of various waste materials. The waste materials used are rice husk ash, lime, ground granulated blast furnace slag and coconut coir fiber. These waste materials have been mixed with the soil in the ratio 10%, 20% and 30% and subjected to various tests Specific Gravity Test, Sieve Analysis Test, Plasticity Index Test, Standard Proctor Test, Unconfined Compression test and California Bearing ratio test. A comparative increase in soil strength was found with all the waste materials. Thus, ultimately the soil is stabilized with the help of these waste materials.

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