A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Using Recycled Aggregate from Demolished Concrete to Produce Lightweight Concrete
The need for urbanization continues all over the world, greatly increasing the need for concrete. On the other hand, concrete debris from building demolitions causes a major environmental obstacle to storage, and it is a big challenge to use it appropriately. The research aims to study the possibility of using an aggregate of recycled concrete from demolished buildings to produce no-fines lightweight concrete. After studying the properties of recycled aggregate and comparing it with natural aggregate, it was found that the specific gravity of the recycled aggregate was lower, but its wear and water absorption were greater than natural aggregate. We conducted laboratory experiments on five different mixtures of no-fines lightweight concrete from natural aggregate using different sizes of aggregate. In addition to conducting laboratory experiments on three different mixtures of no-fines lightweight concrete from recycled aggregate, using different sizes of aggregate, we found that the density of no-fines lightweight concrete which was produced by demolished concrete is 5% less than that of lightweight concrete produced by the natural aggregate, and the compression resistance is close to each other. The best sample of lightweight concrete free of soft materials (no-fines) from demolished concrete had a compression resistance of 130 kg/cm2 and the density was 1704 kg/m3 where W/C = 0.37 and aggregate size was between 12.5 and 19 mm.
Using Recycled Aggregate from Demolished Concrete to Produce Lightweight Concrete
The need for urbanization continues all over the world, greatly increasing the need for concrete. On the other hand, concrete debris from building demolitions causes a major environmental obstacle to storage, and it is a big challenge to use it appropriately. The research aims to study the possibility of using an aggregate of recycled concrete from demolished buildings to produce no-fines lightweight concrete. After studying the properties of recycled aggregate and comparing it with natural aggregate, it was found that the specific gravity of the recycled aggregate was lower, but its wear and water absorption were greater than natural aggregate. We conducted laboratory experiments on five different mixtures of no-fines lightweight concrete from natural aggregate using different sizes of aggregate. In addition to conducting laboratory experiments on three different mixtures of no-fines lightweight concrete from recycled aggregate, using different sizes of aggregate, we found that the density of no-fines lightweight concrete which was produced by demolished concrete is 5% less than that of lightweight concrete produced by the natural aggregate, and the compression resistance is close to each other. The best sample of lightweight concrete free of soft materials (no-fines) from demolished concrete had a compression resistance of 130 kg/cm2 and the density was 1704 kg/m3 where W/C = 0.37 and aggregate size was between 12.5 and 19 mm.
Using Recycled Aggregate from Demolished Concrete to Produce Lightweight Concrete
Lecture Notes in Civil Engineering
Ranadive, M. S. (editor) / Das, Bibhuti Bhusan (editor) / Mehta, Yusuf A. (editor) / Gupta, Rishi (editor) / Ghali, Abd Alrahman (author) / Ghrewati, Bahaa Eddin (author) / Marei, Moteb (author)
2022-09-28
12 pages
Article/Chapter (Book)
Electronic Resource
English
Strength of Recycled Aggregate Concrete Made Using Field-Demolished Concrete as Aggregate
| British Library Online Contents | 1996
Strength of Recycled Aggregate Concrete Made Using Field-Demolished Concrete as Aggregate
| Online Contents | 1996
High performance concrete utilizing recycled demolished concrete
| British Library Conference Proceedings | 2008