Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
An Improved Methodology for Making Recycled Concrete Aggregate (RCA) - Sustainable Construction Material
Construction industry is one of the topmost sector contributing in the development of a country. However the generation of construction and demolition has an impacts on the environment. This paper highlights the comparative studies of properties of Recycled Concrete Aggregates (RCA) and Natural Aggregates (NA) as per Indian standards. The sources of natural aggregates have been dwindling, wherein the disposal of construction and demolition (C&D) waste has been problem in most of the urban areas, due to space constraints. Hence, this lead to the practice of using RCA as a secondary raw material in construction. The maximum utilization of RCA proportioning with natural aggregate in the preparation of concrete, thereby reduces the environmental impact and conservers natural resources. In this paper an attempt has been made to draw the conclusions based on the studies carried out at the concrete technology laboratory of Presidency University, Bengaluru, regarding the efficient utilization of RCA in preparing RAC. The tests revealed that the performance of RCA is affected by the adhered cement mortar on the aggregates. The adhered mortar on aggregate enhances water absorption and density both of these have a considerable impact on desired properties of concrete. To reduce this impact, the adhered mortar on the aggregate has been removed by the abrasion process. This study has been carried out to ascertain both the physical and mechanical properties of the RCA and its performance were studied and compared with those of natural aggregates (NA). This provides an insight to adopt the methodology to improve the performance of RCA in RAC. The study summarizes sustainability gains of RCA utilization. In addition to this, the optimal proportioning of RCA to prepare RAC has improved its stake as a feasible sustainable alternative to NA in construction. In this study an improved methodology has been proposed to remove the mortar on RCA and to enhance the effectiveness of recycled aggregates with reference to desired properties.
An Improved Methodology for Making Recycled Concrete Aggregate (RCA) - Sustainable Construction Material
Construction industry is one of the topmost sector contributing in the development of a country. However the generation of construction and demolition has an impacts on the environment. This paper highlights the comparative studies of properties of Recycled Concrete Aggregates (RCA) and Natural Aggregates (NA) as per Indian standards. The sources of natural aggregates have been dwindling, wherein the disposal of construction and demolition (C&D) waste has been problem in most of the urban areas, due to space constraints. Hence, this lead to the practice of using RCA as a secondary raw material in construction. The maximum utilization of RCA proportioning with natural aggregate in the preparation of concrete, thereby reduces the environmental impact and conservers natural resources. In this paper an attempt has been made to draw the conclusions based on the studies carried out at the concrete technology laboratory of Presidency University, Bengaluru, regarding the efficient utilization of RCA in preparing RAC. The tests revealed that the performance of RCA is affected by the adhered cement mortar on the aggregates. The adhered mortar on aggregate enhances water absorption and density both of these have a considerable impact on desired properties of concrete. To reduce this impact, the adhered mortar on the aggregate has been removed by the abrasion process. This study has been carried out to ascertain both the physical and mechanical properties of the RCA and its performance were studied and compared with those of natural aggregates (NA). This provides an insight to adopt the methodology to improve the performance of RCA in RAC. The study summarizes sustainability gains of RCA utilization. In addition to this, the optimal proportioning of RCA to prepare RAC has improved its stake as a feasible sustainable alternative to NA in construction. In this study an improved methodology has been proposed to remove the mortar on RCA and to enhance the effectiveness of recycled aggregates with reference to desired properties.
An Improved Methodology for Making Recycled Concrete Aggregate (RCA) - Sustainable Construction Material
Lecture Notes in Civil Engineering
Vilventhan, Aneetha (Herausgeber:in) / Singh, Shamsher Bahadur (Herausgeber:in) / Delhi, Venkata Santosh Kumar (Herausgeber:in) / Godihal, Jagdish (Autor:in)
National conference on Advances in Construction Materials and Management ; 2022 ; Warangal, India
31.07.2023
12 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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