Castleford site: the first large scale soil mix technology project in West Yorkshire.

M. Allagoa

In the proceedings of: GeoMontréal 2013: 66th Canadian Geotechnical Conference; 11th joint with IAH-CNC

Session: Soil Stabilization III

ABSTRACT: The site of Castleford is situated in the metropolitan borough of the city of Wakefield in west Yorkshire, England. The site was contaminated by a cocktail of toxic chemicals such as lead, analines, zinc, copper, cadmium, nitrobenzene, chloroanalines and dinstallation of two unique binders; a portland cement and pulverized fly ash (in dry and wet form), the large amount of waste and contaminated soil that acted as a pollution source was immobilized. An investigation of the potential uses of these binders was undertaken. A range of experiments were designed in a view of investigating the effect of these binders on core and surface samples considering the workability, compressive strength, density and impact resistance. The results shothat the core samples had better result when compare to the surface samples.

RÉSUMÉ: Le site de Castleford est situé dans l'arrondissement métropolitain de la ville de Wakefield dans l™ouest du Yorkshire, en Angleterre. Le site a été contaminé par un cocktail de produits chimiques toxiques tels que le plomb, les analines, le zinc, le cuivre, le cadmium, le nitchloroanalines et le dinitrotoluene. Après l'installation de deux liants uniques, un ciment portland et des cendres volantes pulvérisés (sous forme sèche et humide), la grande quantité de déchets et de sol contaminé qui a agi comme une sourcutilisations potentielles de ces liants pour solidifier et stabiliser ce déchet série d'expériences ont été conçues en vue d'étudier l'effet de ces liants sur les carottéchantillons de surface compte tenu de la maniabilité, la résistance à la compression, la densité et la résistance aux chocs. Les résultats montrent que les carottes ont un meilleur résultat lorsque comparé aux échantillons de surface. Key words: Soil mix technology, cement,pulverised fly ash, field mixing, environmental variables. . INTRODUCTION Contaminated soil is very serious concern for environmental protection and nature™s development fi(Shibayama et al. 2005)fl. Soil is a variable mixture of minerals, organic matter and water, capable of supporting the most fundamental requirements for sustainable land use; hence the quality of soil is basically important and different technologies are used for theremediation of industrial contamination fi(Burlakovs and Klavins, 2012)fl. Solidification/stabilization (S/S) techniques have been widely used for hazardous wastes since the early 1970s fi(Grubb et al. 2009)fl. S/S technology is recognized by the U.S. EPA as demonstrated available technology for the containment of contaminated soils and other hazardous wastes that cannot be destroyed by chemical, thermal, or biological means fi(Klinch et al. 1999)fl. A variety of S/S application methods make treatment suitable for a wide range of CASTLEFORD SITE: THE FIRST LARGE SCALE SOIL MIX TECHNOLOGY PROJECT IN WEST YORKSHIRE. The site of Castleford is situated in the metropolitan borough of the city of Wakefield in west Yorkshire, England. The site was contaminated by a cocktail of toxic chemicals such as lead, analines, zinc, copper, cadmium, nitrobenzene, chloroanalines and dinitrotoluene. After the installation of two unique binders; a portland cement and pulverized fly ash (in dry and wet form), the large amount of waste and contaminated soil that acted as a pollution source was immobilized. An uses of these binders was undertaken. A range of experiments were designed in a view of investigating the effect of these binders on core and surface samples considering the workability, compressive strength, density and impact resistance. The results shothat the core samples had better result when compare to the surface samples. est situé dans l'arrondissement métropolitain de la ville de Wakefield dans l™ouest du Yorkshire, en Angleterre. Le site a été contaminé par un cocktail de produits chimiques toxiques tels que le plomb, les analines, le zinc, le cuivre, le cadmium, le nitrobenzène, les chloroanalines et le dinitrotoluene. Après l'installation de deux liants uniques, un ciment portland et des cendres volantes pulvérisés (sous forme sèche et humide), la grande quantité de déchets et de sol contaminé qui a agi comme une source de pollution a été immobilisée. Une investigation sur les utilisations potentielles de ces liants pour solidifier et stabiliser ce déchet a été prise en compte.série d'expériences ont été conçues en vue d'étudier l'effet de ces liants sur les carottéchantillons de surface compte tenu de la maniabilité, la résistance à la compression, la densité et la résistance aux chocs. Les résultats montrent que les carottes ont un meilleur résultat lorsque comparé aux échantillons de surface. ords: Soil mix technology, cement,pulverised fly ash, field mixing, environmental variables. Contaminated soil is very serious concern for environmental protection and nature™s et al. 2005)fl. Soil is a variable mixture of minerals, organic matter and water, capable of supporting the most fundamental requirements for sustainable land use; hence the quality of soil is basically important and different technologies are used for the remediation of industrial contamination Solidification/stabilization (S/S) techniques have been widely used for hazardous wastes since the early 1970s fi(Grubb et al. 2009)fl. S/S technology is recognized by the U.S. EPA as the best demonstrated available technology for the containment of contaminated soils and other hazardous wastes that cannot be destroyed by chemical, thermal, or biological means fi(Klinch et al. 1999)fl. A variety of S/S application methods uitable for a wide range of projects. Solidification refers to changes in the physical properties of the waste, including an increase in its compressive strength that enables it to support more weight, a decrease in its permeability that reduces water infiencapsulation of hazardous constituents. Stabilization refers to chemical changes in the hazardous constituents in the waste, that covert them into a less soluble, mobile or toxic form. For the purpose of solidification, many organic and inorganic binders have been used, most of which have stabilizing characteristics. S/S technology which involves mixing portland cement (organic binder) and inorganic binders into contaminated material, protects human health and the environment by immobilizincontaminants within the treated material. The cement reacts chemically with water in the material being treated, creating changes in the physical and chemical properties of the treated materials preventing the escape of hazardous chemicals into the environment. The site of Castleford is situated in the metropolitan borough of the city of Wakefield in west Yorkshire, England. The site was contaminated by a cocktail of toxic chemicals such as lead, initrotoluene. After the installation of two unique binders; a portland cement and pulverized fly ash (in dry and wet form), the large amount of waste and contaminated soil that acted as a pollution source was immobilized. An uses of these binders was undertaken. A range of experiments were designed in a view of investigating the effect of these binders on core and surface samples considering the workability, compressive strength, density and impact resistance. The results shows est situé dans l'arrondissement métropolitain de la ville de Wakefield dans l™ouest du Yorkshire, en Angleterre. Le site a été contaminé par un cocktail de produits chimiques robenzène, les chloroanalines et le dinitrotoluene. Après l'installation de deux liants uniques, un ciment portland et des cendres volantes pulvérisés (sous forme sèche et humide), la grande quantité de déchets et de e de pollution a été immobilisée. Une investigation sur les a été prise en compte. Une série d'expériences ont été conçues en vue d'étudier l'effet de ces liants sur les carottes et sur les échantillons de surface compte tenu de la maniabilité, la résistance à la compression, la densité et la résistance aux chocs. Les résultats montrent que les carottes ont un meilleur résultat lorsque Solidification refers to changes in the physical properties of the waste, including an increase in its compressive strength that enables decrease in its permeability that reduces water infiltration, and encapsulation of hazardous constituents. Stabilization refers to chemical changes in the hazardous constituents in the waste, that covert them into a less soluble, mobile or toxic form. For the purpose of solidification, many organic organic binders have been used, most of which have stabilizing characteristics. S/S technology which involves mixing portland cement (organic binder) and inorganic binders into contaminated material, protects human health and the environment by immobilizing hazardous contaminants within the treated material. The cement reacts chemically with water in the material being treated, creating changes in the physical and chemical properties of the treated materials preventing the escape of hazardous

Please include this code when submitting a data update: GEO2013_240

Access this article:
Canadian Geotechnical Society members can access to this article, along with all other Canadian Geotechnical Conference proceedings, in the Member Area. Conference proceedings are also available in many libraries.

Cite this article: