RUBBERIZED POZZOLANIC CONCRETE AS FILLING MATERIAL IN HOLLOW STEEL TUBE
BOOTH NO : I6
Category : Manufacturing Technologies
Rubberized Pozzolanic Concrete-Filled Steel Tube Column is aimed to introduce a new type of concrete that utilized crumb rubber from recycled scrap tyres and fly ash from industrial waste. This concrete is used as filling material in steel hollow tubes. This composite column aims to improve the seismic performance of the structural column without sacrificing the load-bearing capacity. The rubberized fly ash concrete is a promising green technology containing crumb rubber replacing fine aggregates and fly ash as a replacement for OPC. Rubberized concrete is known for having better dynamic properties compared to conventional concrete. However, the concrete strength is decreased due to the usage of crumb rubber. The addition of fly ash in concrete can reduce the usage of OPC as well as recover the strength loss. The combination of crumb rubber and fly ash in concrete as infill materials in CFST is a highly promising composite column that is suitable to be used in moderate seismic regions.
Concrete-filled steel tube is one of the most successful composite structural elements in the construction industry. However, the type of filling materials and steel tube give a significant effect on the performance of the element, especially when subjected to cyclic loading. Alternatives have been introduced by researchers for the substitution of materials in concrete composition to improve the seismic performance of concrete, including the usage of using crumb rubber. Rubberized concrete could increase the deformability and ductility of the concrete, which is required in energy dissipation for seismic performance structures. However, the usage of crumb rubber demonstrates the reduction in the strength of concrete. One of the methods to overcome the loss in strength of rubberized concrete is through the usage of fly ash as a partial replacement of cement. Thus, the product aims in improving seismic structural performance with cost-effective design, construction, and maintenance.
More technology to develop new concrete to fill the need for green concrete materials with better seismic resistance. Unfortunately, the construction industry is not aware of the requirement and needs of the stated materials.
The rehabilitation of damaged structures undergone seismic events may be costly. Thus the application of passive seismic resistant structures might prove to be cost-effective with improved dynamic properties.
No proposal plan is ready at this moment. However, test results were deeply investigated to eliminate the weakness and to find the solution to produce good quality Rubberized Pozzolanic Concrete-Filled Steel Tube Column (RPCFST).
Enhance the dynamic performance of structures in earthquake-prone areas.
Sustainable construction materials with the potential of recycled waste materials.
Normal reinforced concrete and other green concrete technology.
Other research institutions.
Construction industry.
JKR
CIDB
Construction Industry
MARIYANA AIDA BINTI AB. KADIR
FAKULTI KEJURUTERAAN AWAM
AZLAN BIN ADNAN
FAKULTI KEJURUTERAAN AWAM
MARIYANA AIDA BINTI AB. KADIR
FAKULTI KEJURUTERAAN AWAM
MOHD NUR ASMAWISHAM BIN ALEL
FAKULTI KEJURUTERAAN AWAM
MOHD ZAMRI BIN RAMLI
FAKULTI KEJURUTERAAN AWAM
MUHAMMAD NAJMI BIN MOHAMAD ALI MASTOR
CIVIL ENGINEERING
NORHIDAYAH BINTI ABDUL HASSAN
FAKULTI KEJURUTERAAN AWAM