The effect of conglomerations gradation on engineering properties of loess

Abstract Loess is a kind of common and important building materials in civil engineering. Particle size distribution has a significant effect on loess engineering properties and there are many studies in this filed. Due to the chemical cementation and the molecular attraction in the loess, the parti...

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Autores principales:	Kong,Dequan, Wan,Rong
Lenguaje:	English
Publicado:	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile 2019
Materias:	Loess conglomeration gradation compressive deformation shear strength mesoscopic observation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2019000200375
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spelling	oai:scielo:S0718-915X20190002003752019-10-07The effect of conglomerations gradation on engineering properties of loessKong,DequanWan,Rong Loess conglomeration gradation compressive deformation shear strength mesoscopic observation Abstract Loess is a kind of common and important building materials in civil engineering. Particle size distribution has a significant effect on loess engineering properties and there are many studies in this filed. Due to the chemical cementation and the molecular attraction in the loess, the particles are usually gathered together and appear in the form of conglomerations. The conglomeration is much larger than the particle and easy to crush. The study on the influence of conglomeration gradation on the engineering properties of loess is relatively less and needs to be enriched. In view of this, the loess samples with different conglomeration gradations are prepared, and the compaction test, compression test and direct shear test are carried out. The test results show that the conglomeration gradation has a certain effect on the maximum dry density and shear strength of loess. But the effect on compression test is not significant. The better loess conglomeration gradation is, the better its engineering properties are. The engineering properties of loess with larger conglomerations are better than those with smaller conglomerations. The reason is related to the breakage of loess conglomerations after loading. The test samples are also observed by stereomicroscope, and the results of mesoscopic observation are consistent with the macroscopic phenomena. Therefore, reasonable adjustment of loess conglomeration gradation is beneficial to obtain better engineering properties.info:eu-repo/semantics/openAccessEscuela de Construcción Civil, Pontificia Universidad Católica de ChileRevista de la construcción v.18 n.2 20192019-07-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2019000200375en10.7764/rdlc.18.2.375
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Loess conglomeration gradation compressive deformation shear strength mesoscopic observation
spellingShingle	Loess conglomeration gradation compressive deformation shear strength mesoscopic observation Kong,Dequan Wan,Rong The effect of conglomerations gradation on engineering properties of loess
description	Abstract Loess is a kind of common and important building materials in civil engineering. Particle size distribution has a significant effect on loess engineering properties and there are many studies in this filed. Due to the chemical cementation and the molecular attraction in the loess, the particles are usually gathered together and appear in the form of conglomerations. The conglomeration is much larger than the particle and easy to crush. The study on the influence of conglomeration gradation on the engineering properties of loess is relatively less and needs to be enriched. In view of this, the loess samples with different conglomeration gradations are prepared, and the compaction test, compression test and direct shear test are carried out. The test results show that the conglomeration gradation has a certain effect on the maximum dry density and shear strength of loess. But the effect on compression test is not significant. The better loess conglomeration gradation is, the better its engineering properties are. The engineering properties of loess with larger conglomerations are better than those with smaller conglomerations. The reason is related to the breakage of loess conglomerations after loading. The test samples are also observed by stereomicroscope, and the results of mesoscopic observation are consistent with the macroscopic phenomena. Therefore, reasonable adjustment of loess conglomeration gradation is beneficial to obtain better engineering properties.
author	Kong,Dequan Wan,Rong
author_facet	Kong,Dequan Wan,Rong
author_sort	Kong,Dequan
title	The effect of conglomerations gradation on engineering properties of loess
title_short	The effect of conglomerations gradation on engineering properties of loess
title_full	The effect of conglomerations gradation on engineering properties of loess
title_fullStr	The effect of conglomerations gradation on engineering properties of loess
title_full_unstemmed	The effect of conglomerations gradation on engineering properties of loess
title_sort	effect of conglomerations gradation on engineering properties of loess
publisher	Escuela de Construcción Civil, Pontificia Universidad Católica de Chile
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-915X2019000200375
work_keys_str_mv	AT kongdequan theeffectofconglomerationsgradationonengineeringpropertiesofloess AT wanrong theeffectofconglomerationsgradationonengineeringpropertiesofloess AT kongdequan effectofconglomerationsgradationonengineeringpropertiesofloess AT wanrong effectofconglomerationsgradationonengineeringpropertiesofloess
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The effect of conglomerations gradation on engineering properties of loess

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