Elevated Temperature Performance of Reactive Powder Concrete Containing Recycled Fine Aggregates
Autor: | Hisham Alabduljabbar, Rana Faisal Tufail, Muhammad Abid, Rayed Alyousef, Adnan Nawaz, Hammad Salahuddin, Summera Fahmi Khan, Liaqat Ali Qureshi, Fahid Aslam |
---|---|
Jazyk: | angličtina |
Rok vydání: | 2020 |
Předmět: |
Absorption of water
Materials science 0211 other engineering and technologies reactive powder concrete (RPC) 02 engineering and technology lcsh:Technology Article Flexural strength 021105 building & construction General Materials Science Composite material lcsh:Microscopy Curing (chemistry) lcsh:QC120-168.85 lcsh:QH201-278.5 lcsh:T Normal strength concrete C & D waste management recycled fine aggregates 021001 nanoscience & nanotechnology Natural sand Compressive strength test C & D waste management elevated temperature lcsh:TA1-2040 lcsh:Descriptive and experimental mechanics sense organs lcsh:Electrical engineering. Electronics. Nuclear engineering 0210 nano-technology lcsh:Engineering (General). Civil engineering (General) lcsh:TK1-9971 amp recycled aggregate concrete |
Zdroj: | Materials, Vol 13, Iss 3748, p 3748 (2020) Materials Volume 13 Issue 17 |
ISSN: | 1996-1944 |
Popis: | This study examines the effect of elevated temperature on various properties of reactive powder concrete (RPC) containing varying percentages of recycled fine aggregates as sand replacement. Recycled fine aggregates were collected from two sources, i.e., demolished normal strength concrete and demolished RPC. The specimens were prepared using 25%, 50%, and 75% replacement of natural sand with recycled fine aggregates, exposed to two different curing conditions and were subjected to four temperatures, i.e., 25, 200, 400, and 600 ° C. Later, the specimens were tested for mass loss, compressive strength test, split-tensile strength test, flexural strength test, and water absorption test at all temperature ranges. Results determined that although the mechanical properties degraded with the temperature rise, the recycled aggregates can be employed as a partial replacement of natural sand in RPC without causing a significant decrease in the performance of RPC, and can help to produce more sustainable RPC by using recycled aggregates. |
Databáze: | OpenAIRE |
Externí odkaz: |