DEVELOPING CORRELATION OF CBR FROM INDEX PROPERTIES

2021 ◽  
Vol 8 (7) ◽  
Keyword(s):  
Index Properties

The relationship between geotechnical index properties and the pore-size distribution of compacted clayey silts

2015 ◽  
Vol 22 (6) ◽  
Author(s):  
Nazile Ural
Keyword(s):  
Specific Surface ◽  
Pore Size Distribution ◽  
Pore Size ◽  
Size Distribution ◽  
Surface Area ◽  
Specific Surface Area ◽  
Pore Volume ◽  
Correlation Coefficients ◽  
Liquid Limit ◽  
Index Properties

AbstractIn this study, the relationships between geotechnical index properties and the pore-size distribution of compacted natural silt and artificial soil mixtures, namely, silt with two different clays and three different clay percentages (10%, 20%, and 40%), were examined and compared. Atterberg’s limit tests, standard compaction tests, mercury intrusion porosimetry, X-ray diffraction, scanning electron microscopy (SEM) analysis, and Brunauer-Emmett-Teller specific surface analysis were conducted. The results show that the liquid limit, the cumulative pore volume, and specific surface area of artificially mixed soils increase with an increase in the percentage of clay. The cumulative pore volume and specific surface area with geotechnical index properties were compared. High correlation coefficients were observed between the specific areas and both the liquid limit and the plasticity index, as well as between the cumulative pore volume and both the clay percentage and the

Physicochemical and index properties of loess stabilized with lime and fly ash piles

2015 ◽  
Vol 114 ◽  
pp. 77-84 ◽  
Author(s):  
Xiangjun Pei ◽  
Fanyu Zhang ◽  
Wanjiong Wu ◽  
Shouyun Liang
Keyword(s):  
Fly Ash ◽  
Index Properties

Evaluating the Relationships Between NTNU/SINTEF Drillability Indices with Index Properties and Petrographic Data of Hard Igneous Rocks

2017 ◽  
Vol 50 (11) ◽  
pp. 2929-2953 ◽  
Author(s):  
Saeed Aligholi ◽  
Gholam Reza Lashkaripour ◽  
Mohammad Ghafoori ◽  
Sadegh Tarigh Azali
Keyword(s):  
Igneous Rocks ◽  
Index Properties

scholarly journals Compressibility behaviour of remoulded, fine-grained soils and correlation with index properties

2000 ◽  
Vol 37 (3) ◽  
pp. 712-722 ◽  
Author(s):  
A Sridharan ◽  
H B Nagaraj
Keyword(s):  
Liquid Limit ◽  
Plasticity Index ◽  
Engineering Properties ◽  
Test Results ◽  
Index Properties ◽  
Initial Water ◽  
Fine Grained ◽  
Wide Range ◽  
The Relationship ◽  
Water Contents

Correlating engineering properties with index properties has assumed greater significance in the recent past in the field of geotechnical engineering. Although attempts have been made in the past to correlate compressibility with various index properties individually, all the properties affecting compressibility behaviour have not been considered together in any single study to examine which index property of the soil correlates best with compressibility behaviour, especially within a set of test results. In the present study, 10 soils covering a sufficiently wide range of liquid limit, plastic limit, and shrinkage limit were selected and conventional consolidation tests were carried out starting with their initial water contents almost equal to their respective liquid limits. The compressibility behaviour is vastly different for pairs of soils having nearly the same liquid limit, but different plasticity characteristics. The relationship between void ratio and consolidation pressure is more closely related to the shrinkage index (shrinkage index = liquid limit - shrinkage limit) than to the plasticity index. Wide variations are seen with the liquid limit. For the soils investigated, the compression index relates better with the shrinkage index than with the plasticity index or liquid limit.Key words: Atterberg limits, classification, clays, compressibility, laboratory tests.

Mechanisms of high refractive index properties in fish-bone shape structures

2015 ◽  
Author(s):  
In-Sung Lee ◽  
Jin-Kyu Yang ◽  
Chul-Sik Kee ◽  
Joong-Wook Lee
Keyword(s):  
Refractive Index ◽  
High Refractive Index ◽  
Fish Bone ◽  
Index Properties

STABILISASI TANAH EKSPANSIF DENGAN BAHAN TAMBAH GIPSUM (STUDI KASUS DI KAWASAN INDUSTRI CANDI BLOK K-18, SEMARANG)

G - SMART ◽  
2017 ◽  
Vol 1 (1) ◽  
pp. 33
Author(s):  
Ibnu Widiantoro ◽  
Fauzi Ahmad
Keyword(s):  
Direct Shear ◽  
Index Properties ◽  
Atterberg Limit

Jenis tanah yang cukup banyak ditemui di Kota Semarang adalah tanah ekspansif. Tanahekspansif adalah tanah lempung yang memiliki karakteristik kembang susut yang cukup besarserta tingkat plastisitas yang tinggi. Permasalahan bangunan yang berdiri di atas tanahekspansif salah satunya terdapat di Kawasan Industri Candi yang berada di Jalan GatotSubroto Semarang pada lokasi Blok K-25. Permasalahan yang terjadi terletak pada tembokyang pecah dan retak retak serta lantai yang bergelombang. Salah satu upaya yang akandilakukan oleh penulis untuk meningkatkan kestabilan tanah ekspansif adalah melakukanpenelitian terhadap penambahan bahan tambah gipsum dengan persentase penambahan yangberbeda. Dalam penelitian ini digunakan penambahan gipsum dengan persentase gipsumsebanyak 0%, 15%, 20% dan 25% dari berat tanah kering. Uji yang dilakukan di laboratoriummeliputi uji mineral tanah, index properties, atterberg limit, uji saringan, uji hidrometer, ujikompaksi, uji swelling dan direct shear. Berdasarkan uji yang telah dilakukan denganpenambahan gipsum, dapat disimpulkan bahwa gipsum memiliki pengaruh yang cukup baikdalam meningkatkan stabilisasi tanah lempung ekspansif.

scholarly journals Controlling Refraction Using Sub-Wavelength Resonators

2018 ◽  
Vol 8 (10) ◽  
pp. 1942
Author(s):  
Yue Chen ◽  
Robert Lipton
Keyword(s):  
Frequency Dependence ◽  
Free Space ◽  
Near Infrared ◽  
Center Frequency ◽  
Negative Index ◽  
Index Properties ◽  
Frequency Bands ◽  
Transmitted Signal ◽  
Sub Wavelength

We construct metamaterials from sub-wavelength nonmagnetic resonators and consider the refraction of incoming signals traveling from free space into the metamaterial. We show that the direction of the transmitted signal is a function of its center frequency and bandwidth. The directionality of the transmitted signal and its frequency dependence is shown to be explicitly controlled by sub-wavelength resonances that can be calculated from the geometry of the sub-wavelength scatters. We outline how to construct a medium with both positive and negative index properties across different frequency bands in the near infrared and optical regime.

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