Influence of chemical stabilization method and its effective additive concentration (EAC) in non-pavement roads. A study in andesite-based soils

Unpaved roads can be affected by high traffic demand and environmental conditions, decreasing its serviceability. To improve mechanical performance and reduce maintenance costs in soils, chemical stabilization techniques have been widely used and it is additive selection depends mainly on the availa...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	R. Cabezas, C. Cataldo
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2019
Materias:	soil stabilization chemical soil improvement rural roads bearing capacity Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/950d118be6834a618a5beef8fa53268c
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:950d118be6834a618a5beef8fa53268c
record_format	dspace
spelling	oai:doaj.org-article:950d118be6834a618a5beef8fa53268c2021-11-04T15:51:55ZInfluence of chemical stabilization method and its effective additive concentration (EAC) in non-pavement roads. A study in andesite-based soils2331-191610.1080/23311916.2019.1592658https://doaj.org/article/950d118be6834a618a5beef8fa53268c2019-01-01T00:00:00Zhttp://dx.doi.org/10.1080/23311916.2019.1592658https://doaj.org/toc/2331-1916Unpaved roads can be affected by high traffic demand and environmental conditions, decreasing its serviceability. To improve mechanical performance and reduce maintenance costs in soils, chemical stabilization techniques have been widely used and it is additive selection depends mainly on the available soil. In this research, an experimental study for different soil-additive combinations was conducted and analyzed, considering several soils based in andesitic rocks, for analyzing soil strength improvement after chemical stabilization. The results showed a dependency regarding the grain size distribution of the soil, but also on the plasticity index and the moisture content of the sample, which differs significantly from some literature guidelines. Proper conditions of soil characteristics and water-additive concentration may lead up to an increase of twice the initial soil strength. The concentration of additive per unit volume of wet soil leads to define an Effective Additive Concentration (EAC) parameter, that provides an optimal increase of soil shear strength. It is proven that exists a clear tendency of optimal EAC value for asphalt or polymeric additives, as well as some tendencies for enzymatic additives that need to be further developed, due to its dependence on the chemical composition of the soils.R. CabezasC. CataldoTaylor & Francis Grouparticlesoil stabilizationchemicalsoil improvementrural roadsbearing capacityEngineering (General). Civil engineering (General)TA1-2040ENCogent Engineering, Vol 6, Iss 1 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	soil stabilization chemical soil improvement rural roads bearing capacity Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	soil stabilization chemical soil improvement rural roads bearing capacity Engineering (General). Civil engineering (General) TA1-2040 R. Cabezas C. Cataldo Influence of chemical stabilization method and its effective additive concentration (EAC) in non-pavement roads. A study in andesite-based soils
description	Unpaved roads can be affected by high traffic demand and environmental conditions, decreasing its serviceability. To improve mechanical performance and reduce maintenance costs in soils, chemical stabilization techniques have been widely used and it is additive selection depends mainly on the available soil. In this research, an experimental study for different soil-additive combinations was conducted and analyzed, considering several soils based in andesitic rocks, for analyzing soil strength improvement after chemical stabilization. The results showed a dependency regarding the grain size distribution of the soil, but also on the plasticity index and the moisture content of the sample, which differs significantly from some literature guidelines. Proper conditions of soil characteristics and water-additive concentration may lead up to an increase of twice the initial soil strength. The concentration of additive per unit volume of wet soil leads to define an Effective Additive Concentration (EAC) parameter, that provides an optimal increase of soil shear strength. It is proven that exists a clear tendency of optimal EAC value for asphalt or polymeric additives, as well as some tendencies for enzymatic additives that need to be further developed, due to its dependence on the chemical composition of the soils.
format	article
author	R. Cabezas C. Cataldo
author_facet	R. Cabezas C. Cataldo
author_sort	R. Cabezas
title	Influence of chemical stabilization method and its effective additive concentration (EAC) in non-pavement roads. A study in andesite-based soils
title_short	Influence of chemical stabilization method and its effective additive concentration (EAC) in non-pavement roads. A study in andesite-based soils
title_full	Influence of chemical stabilization method and its effective additive concentration (EAC) in non-pavement roads. A study in andesite-based soils
title_fullStr	Influence of chemical stabilization method and its effective additive concentration (EAC) in non-pavement roads. A study in andesite-based soils
title_full_unstemmed	Influence of chemical stabilization method and its effective additive concentration (EAC) in non-pavement roads. A study in andesite-based soils
title_sort	influence of chemical stabilization method and its effective additive concentration (eac) in non-pavement roads. a study in andesite-based soils
publisher	Taylor & Francis Group
publishDate	2019
url	https://doaj.org/article/950d118be6834a618a5beef8fa53268c
work_keys_str_mv	AT rcabezas influenceofchemicalstabilizationmethodanditseffectiveadditiveconcentrationeacinnonpavementroadsastudyinandesitebasedsoils AT ccataldo influenceofchemicalstabilizationmethodanditseffectiveadditiveconcentrationeacinnonpavementroadsastudyinandesitebasedsoils
_version_	1718444728852152320

Influence of chemical stabilization method and its effective additive concentration (EAC) in non-pavement roads. A study in andesite-based soils

Ejemplares similares