Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Studies on High-Performance Concrete Containing Aluminium Dross
This paper focuses on the studies on high-performance concrete (HPC) incorporating Aluminium dross which is a by-product material obtained from smelting of Aluminium as a Shrinkage reducing admixture. Aluminiums dross liberates vapours of hydrogen peroxide when it comes in contact with water-which leads to a swelling behaviour. Due to this swelling behaviour when comes in contact with water, it could be effectively used as an admixture instead of Shrinkage reducing admixture in high-performance concrete. In the present work, the comparative study was also been presented with normal HPC mixes for strength and shrinkage. By concept, high-performance concrete should be workable, durable, low permeability, high-dimensional stability and long lasting. Whilst in potential application, the name HPC is sometimes used for the representation of concrete, this sometimes does not have any of shown above characteristics. In specific, the use of extremely active pozzolans, including the use of silica fume, with low water-binding concrete mixes has been found to be considerably moisture absorption, especially without sufficient curing. This behaviour can mostly be due to an improvement in autogenous drying reduction and perhaps a decline in creep for improved shrinking cracking in these kinds of mixes. The research findings on use of Aluminium dross in HPC—resulting in an appreciable reduction in the drying shrinkage at 1%. In order to consider the hydration of concrete with the use of Aluminium dross, micro-structural observations have also been conducted out from hardened concrete extracted samples
Studies on High-Performance Concrete Containing Aluminium Dross
This paper focuses on the studies on high-performance concrete (HPC) incorporating Aluminium dross which is a by-product material obtained from smelting of Aluminium as a Shrinkage reducing admixture. Aluminiums dross liberates vapours of hydrogen peroxide when it comes in contact with water-which leads to a swelling behaviour. Due to this swelling behaviour when comes in contact with water, it could be effectively used as an admixture instead of Shrinkage reducing admixture in high-performance concrete. In the present work, the comparative study was also been presented with normal HPC mixes for strength and shrinkage. By concept, high-performance concrete should be workable, durable, low permeability, high-dimensional stability and long lasting. Whilst in potential application, the name HPC is sometimes used for the representation of concrete, this sometimes does not have any of shown above characteristics. In specific, the use of extremely active pozzolans, including the use of silica fume, with low water-binding concrete mixes has been found to be considerably moisture absorption, especially without sufficient curing. This behaviour can mostly be due to an improvement in autogenous drying reduction and perhaps a decline in creep for improved shrinking cracking in these kinds of mixes. The research findings on use of Aluminium dross in HPC—resulting in an appreciable reduction in the drying shrinkage at 1%. In order to consider the hydration of concrete with the use of Aluminium dross, micro-structural observations have also been conducted out from hardened concrete extracted samples
Studies on High-Performance Concrete Containing Aluminium Dross
Lecture Notes in Civil Engineering
Nandagiri, Lakshman (Herausgeber:in) / Narasimhan, M. C. (Herausgeber:in) / Marathe, Shriram (Herausgeber:in) / Dinesh, S.V. (Herausgeber:in) / Mithun, B. M. (Autor:in) / Marathe, Shriram (Autor:in) / Acharya, Gururaj (Autor:in)
03.09.2021
11 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch