Properties and possible recycling of solid waste from ready-mix concrete

✍ Scribed by M.F. Pistilli; C.F. Peterson; S.P. Shah

• Publisher: Elsevier Science
• Year: 1975
• Tongue: English
• Weight: 456 KB
• Volume: 5
• Category: Article
• ISSN: 0008-8846
• DOI: 10.1016/0008-8846(75)90007-1

✦ Synopsis

Due to more restrictive environment legislation, many readymix concrete suppliers are often obligated to find adequate means of handling, recycling and marketing their waste solids. This paper discusses the nature, properties and possible uses of the fine fraction of the waste slurry. Chemical, physical and mechanical properties of the slurry solids are presented. The influence of addition of waste solids to mortar and concrete made with three brands of cements are examined. The effects of waste solids on compressive and tensile strength, setting time, shrinkage and sulfate expansion and workability were studied.

En vue de reglementations de plus en plus severes controlant la disposition des dechets de betons prets a l'emploi, beaucoup de fabricants sont obliges de trouver des moyens de reutiliser ces dechets.

La pattie fine de ces dechets comprend un coulis dont la nature et l'utilisation possible font l'object de cet article.

D'abord les proprietes chimiques physiques et mecaniques de ce coulis solidifie sont presentees. Ensuite l'influence de l'addition de ce coulis a des mortiers et betons utilisant trois qualites differentes de ciment est analysee en function de leur consistance, de leur resistancs en compression et tension, et enfin, de leur retrait.