Viewing Natural Clay Soils as Replacements for Synthetic Materials

Clay soils have various areas of use in geotechnical engineering.The common use of clayey soils are for landfills, dams,nuclear plants, etc. However, when the clay soils interactwith water, the geotechnical properties such as the swelling,the shear strength, and the compressibility properties ofclay change gradually. Therefore, in this research, using ahydrophobic organo-clay, polymers (locust bean gum, latex,glycerine, and vinyl acrylic copolymer), and rubber powder,clay-nanocomposites were developed to solve the problemsdue to the clay-water interaction encountered in the clay liners.This study focuses on the geotechnical properties of theclay-nanocomposites researched experimentally in laboratoryconditions. The test results found that, the specific gravities,consistency limits, compaction parameters, and unconfinedcompressive strengths of clay-nanocomposites change significantly,when compared to those of natural clay and hydrophobicorgano-clay.

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PRESSURE SINKAGE TESTS ON SYNTHETIC AND NATURAL CLAY SOILS

10.21236/ad0401804 ◽

1962 ◽

Author(s):

PARKER D. TRASK ◽

DAVID T. SNOW

Keyword(s):

Clay Soils ◽

Natural Clay

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Biomimetic materials: An introduction

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100129735 ◽

1992 ◽

Vol 50 (2) ◽

pp. 1020-1021 ◽

Cited By ~ 1

Author(s):

M. Sarikaya ◽

J. T. Staley ◽

I. A. Aksay

Keyword(s):

Self Assembly ◽

Structural Control ◽

Hierarchical Structures ◽

Ceramic Composites ◽

Advanced Materials ◽

Length Scale ◽

Spider Webs ◽

Biomimetic Materials ◽

Synthetic Materials ◽

All Ceramic

Biomimetics is an area of research in which the analysis of structures and functions of natural materials provide a source of inspiration for design and processing concepts for novel synthetic materials. Through biomimetics, it may be possible to establish structural control on a continuous length scale, resulting in superior structures able to withstand the requirements placed upon advanced materials. It is well recognized that biological systems efficiently produce complex and hierarchical structures on the molecular, micrometer, and macro scales with unique properties, and with greater structural control than is possible with synthetic materials. The dynamism of these systems allows the collection and transport of constituents; the nucleation, configuration, and growth of new structures by self-assembly; and the repair and replacement of old and damaged components. These materials include all-organic components such as spider webs and insect cuticles (Fig. 1); inorganic-organic composites, such as seashells (Fig. 2) and bones; all-ceramic composites, such as sea urchin teeth, spines, and other skeletal units (Fig. 3); and inorganic ultrafine magnetic and semiconducting particles produced by bacteria and algae, respectively (Fig. 4).

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Buffering of TOC-Contaminant Using Natural Clay Mineral Liner

International Conference on Earth, Environment and Life sciences (EELS-2014) Dec. 23-24, 2014 Dubai (UAE) ◽

10.15242/iicbe.c1214093 ◽

2014 ◽

Keyword(s):

Clay Mineral ◽

Natural Clay

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Energetic relationships for crushing of soil clods

Progress in Agricultural Engineering Sciences ◽

10.1556/progress.2.2006.1.3 ◽

2006 ◽

Vol 2 (1) ◽

pp. 51-72

Author(s):

István Patay ◽

Virág Sándor

Keyword(s):

Moisture Content ◽

Specific Energy ◽

Soil Moisture Content ◽

Energy Requirement ◽

Clay Content ◽

Clay Soils ◽

Rigid Support ◽

Soil Plasticity ◽

Specific Energy Requirement ◽

The Relationship

Clod crushing is a principal problem with soils of high clay content. Therefore, there is a need for determining the conditions for clod breaking and clod crushing. The objective of the work was to develop a special purpose tool for single clod breaking both by rigid support of the clod and by a single clod supported by soil and to develop a machine for clod crushing. Furthermore, the purpose was to determine the relationship between the specific energy requirement for clod crushing in the function of soil plasticity and the soil moisture content by the means of the developed tool and machine. The main result of the experiments is summarized in a 3D diagram where the specific energy requirement for soil clod crushing is given in the function of the moisture content and the plasticity index for different clay soils.

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