Microstructures, Mineral Compositions, and Mechanical Properties of Red-Layers in Southern China

Microstructures, Mineral Compositions, and Mechanical Properties of Red-Layers in Southern China

In order to reveal the water-induced damage mechanism and mechanical properties of red-layers in Southern China, typical red-layer samples are experimentally studied by scanning electron microscope (SEM), energy spectrum analysis, XRD, and mechanical tests. The results show that some red-layer sampl...

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Main Authors: Huizhi Zhang, Jifeng Liu
Format: Article
Language:English
Published: Hindawi Limited 2018-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2018/9601386
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spelling doaj-456df7cf31484ea3b7dca6e41621bd8e2020-11-25T01:56:01ZengHindawi LimitedAdvances in Materials Science and Engineering1687-84341687-84422018-01-01201810.1155/2018/96013869601386Microstructures, Mineral Compositions, and Mechanical Properties of Red-Layers in Southern ChinaHuizhi Zhang0Jifeng Liu1Key Laboratory of Engineering Materials and Structural Reinforcement, Sanming University, Fujian Province University, Fujian, ChinaKey Laboratory of Engineering Materials and Structural Reinforcement, Sanming University, Fujian Province University, Fujian, ChinaIn order to reveal the water-induced damage mechanism and mechanical properties of red-layers in Southern China, typical red-layer samples are experimentally studied by scanning electron microscope (SEM), energy spectrum analysis, XRD, and mechanical tests. The results show that some red-layer samples contain a large number of smectite and illite-smectite mixed-layer clay minerals and their microstructures are mainly stacked microaggregates in which mutual agglomeration is formed by flake and tabular clay particles. Widespread distribution micropores and fractures in microaggregates provide the necessary moisture migration channels. The various cemented materials produce a kind of irreversible structural strength, and this strength is vulnerable for the aqueous medium conditions. The influence of microstructures and mineral compositions on red-layer mechanical properties is discussed. The results could provide the reference for further research about the water-induced damage mechanism of red-layers in Southern China.http://dx.doi.org/10.1155/2018/9601386
collection DOAJ
language English
format Article
sources DOAJ
author Huizhi Zhang
Jifeng Liu
spellingShingle Huizhi Zhang
Jifeng Liu
Microstructures, Mineral Compositions, and Mechanical Properties of Red-Layers in Southern China
Advances in Materials Science and Engineering
author_facet Huizhi Zhang
Jifeng Liu
author_sort Huizhi Zhang
title Microstructures, Mineral Compositions, and Mechanical Properties of Red-Layers in Southern China
title_short Microstructures, Mineral Compositions, and Mechanical Properties of Red-Layers in Southern China
title_full Microstructures, Mineral Compositions, and Mechanical Properties of Red-Layers in Southern China
title_fullStr Microstructures, Mineral Compositions, and Mechanical Properties of Red-Layers in Southern China
title_full_unstemmed Microstructures, Mineral Compositions, and Mechanical Properties of Red-Layers in Southern China
title_sort microstructures, mineral compositions, and mechanical properties of red-layers in southern china
publisher Hindawi Limited
series Advances in Materials Science and Engineering
issn 1687-8434
1687-8442
publishDate 2018-01-01
description In order to reveal the water-induced damage mechanism and mechanical properties of red-layers in Southern China, typical red-layer samples are experimentally studied by scanning electron microscope (SEM), energy spectrum analysis, XRD, and mechanical tests. The results show that some red-layer samples contain a large number of smectite and illite-smectite mixed-layer clay minerals and their microstructures are mainly stacked microaggregates in which mutual agglomeration is formed by flake and tabular clay particles. Widespread distribution micropores and fractures in microaggregates provide the necessary moisture migration channels. The various cemented materials produce a kind of irreversible structural strength, and this strength is vulnerable for the aqueous medium conditions. The influence of microstructures and mineral compositions on red-layer mechanical properties is discussed. The results could provide the reference for further research about the water-induced damage mechanism of red-layers in Southern China.
url http://dx.doi.org/10.1155/2018/9601386
work_keys_str_mv AT huizhizhang microstructuresmineralcompositionsandmechanicalpropertiesofredlayersinsouthernchina
AT jifengliu microstructuresmineralcompositionsandmechanicalpropertiesofredlayersinsouthernchina
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