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    Wyświetlanie 1-3 z 3
    Tytuł:
    Study on potential of soil stabilization using concrete sludge of batching plant (CSBP)
    Autorzy:
    Nawi, Nur M.
    Mat Yusof, Doris A.
    Sharipudin, Siti S.
    Mohd Halim, Nora F.
    Mohamad, Nor M.
    Powiązania:
    https://bibliotekanauki.pl/articles/35554294.pdf
    Data publikacji:
    2022
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Tematy:
    CBR value
    concrete sludge
    organic soil
    maximum dry density
    subgrade
    Opis:
    More than 8 t of fresh concrete waste may be created and returned to the batching plants throughout Malaysia, where it will degrade into concrete sludge. Most batching plants will dump their concrete sludge on the ground or at a landfill which is not eco-friendly at all. Consequently, this study is to investigate the potential of concrete sludge of batching plant (CSBP) to be used as the stabilized material for organic soil which indirectly can help to recycle CSBP from end up at the landfill. The Atterberg limit test was conducted to identify the characteristic of soil used in this study. Four different percentages of CSBP were used which are 0, 5, 10 and 15%. Then, the standard Proctor test and California bearing ratio test were performed, and it shows that the CBR value remarkably increases from 4.8 to 20.7%, with the rise of CSBP percentages from 0 to 15%. The finding shows that CSBP can be used as the potential material to enhance the trend of strength value of CBR. Thus, using CSBP as a stabilized material for organic soil would alleviate the problem of overflowing landfills with concrete sludge and encourage a more sustainable approach in the construction industry.
    Źródło:
    Scientific Review Engineering and Environmental Sciences; 2021, 30, 4; 552-560
    1732-9353
    Pojawia się w:
    Scientific Review Engineering and Environmental Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Data compression by Principal Component Analysis (PCA) in modelling of soil density parameters based on soil granulation
    Autorzy:
    Sulewska, M. J.
    Zabielska-Adamska, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2060294.pdf
    Data publikacji:
    2015
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Artificial Neural Networks
    principal component analysis
    compaction parameters
    minimum and maximum dry density of solid particles
    graining parameters
    Opis:
    The parameter for the density specification of naturally compacted non-cohesive soils and soils in embankments of hydraulic structures is the density index (ID). The parameter used to control the quality of compaction of cohesive and non-cohesive soils artificially thickened, embedded in a variety of embankments is the degree of compaction (IS). In order to determine the parameters of density (ID or IS), compaction parameters ( or should be examined in a laboratory, which often is a long and difficult procedure to carry out. Therefore, there is a need for methods of improving and shortening the test of compaction parameters based on the development and application of useful correlations. Since compaction parameters are dependent on the soil granulation, a method based on regression and artificial neural networks was applied to develop required correlations. Due to the large number of input variables of neural networks in relation to the number of case studies, a PCA method was used to reduce the number of input variables, which resulted in reduction in the size of neural networks.
    Źródło:
    Geological Quarterly; 2015, 59, 2; 400--407
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of Waste Glass Powder on Subgrade Soil Improvement
    Autorzy:
    Javed, Syed Aaqib
    Chakraborty, Sudipta
    Powiązania:
    https://bibliotekanauki.pl/articles/1030256.pdf
    Data publikacji:
    2020
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    California Bearing Ratio (CBR)
    Liquid Limit (LL)
    Maximum Dry Density (MDD)
    Optimum Moisture Content (OMC)
    Plastic Limit (PL)
    Soil Stabilization
    Unconfined Compression Strength (UCS)
    Waste Glass Powder
    Opis:
    The weak soil is largely distributed worldwide and creates problems in constructing pavements, roadways, structures, irrigation systems and foundation works due to low shear strength and bearing capacity. The ways of improving soil is known as soil stabilization. Various soil stabilization techniques are using but none of them are cost effective and environmentally friendly way. The present study aims to effect of soil stabilization with waste glass powder which will reduce the cost and is environmentally friendly. To investigate the effect of glass powder in cohesive soil different types of index and geotechnical engineering tests are conducted and compared with the virgin soil. Glass powder was mixed with the soil samples by 2%, 4%, 6%, 8% and 10% of dry weight of soil to conduct the tests and to determine the optimum percentage of glass powder. The Liquid Limit (LL), Plastic Limit (PL) and Plasticity Index (PI) continuously decreased and found 33.9%, 18.4% and 15.5% respectively at 10% of glass powder. Maximum dry density (MDD) was increasing and found constant and Optimum Moisture Content (OMC) was decreasing when added glass powder. The both Unsoaked and Soaked California Bearing Ratio (CBR) was increasing with the addition of glass powder and found maximum value 22.5% and 10.4% respectively. Unconfined compressive strength (UCS) was increasing up to 8% of glass powder and found to 133.5 KN/m2 and then decreased to 119.7 KN/m2 when added 10% of glass powder. Shear strength parameter also increases with the increase of glass powder. The study found that the optimum percentage of glass powder is 8% of dry weight of soil.
    Źródło:
    World Scientific News; 2020, 144; 30-42
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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