Abstract
In this work, the experimental and simulation analysis of the performance of geopolymer composites reinforced with steel fiber and polypropylene fiber is investigated. By embedding hooked end steel fiber and polypropylene fiber with various volume fractions of 0%, 0.5%, 1%, 1.5% to the geopolymer concrete mixture, the mechanical behavior was enhanced significantly through experimental results. The compressive strength was improved 26% with 0.5% of polypropylene fiber and 46% with 1% of hooked end steel fiber while the increment of splitting tensile strength was 12% and 28%, respectively. The flexural strength of specimens using two fiber types was also improved when compared with the non-fiber geopolymer concrete. The highest increment obtained with 1.5% of fiber volume content was from 26% to 42%. The compressive performance and flexural performance of fiber-reinforced geopolymer concrete were also better than specimens without fiber, with a higher load carrying capacity, higher stress, higher toughness and smaller strain. Using hooked end steel fiber resulted in better mechanical strength than using polypropylene fiber, and the presence of fibers is an important factor related to the strength improvements. A finite element analysis was modeled by the ANSYS program, and this showed that the load–deflection response and crack patterns also agreed quite well with experimental results.
Highlights
Concrete is one of the most popular materials used in modern construction, and cement is known as the main binder of the concrete structure
There were two results of compressive strength when geopolymer concrete (PFRGC), the strength was improved at 0% and 0.5% of fiber and decreased at the volume fractions of fiber were changed
The strength of hooked end steel fiber-reinforced concrete (PFRGC), the strength was improved at 0% and 0.5% of fiber and decreased at volume fractions geopolymer concrete (HFRGC) increased from 0% to 1.0% of fiber and decreased at a volume fraction of 1.0% and 1.5%
Summary
Concrete is one of the most popular materials used in modern construction, and cement is known as the main binder of the concrete structure. Using cement leads to a negative effect on the environment due to the emission of carbon dioxide generated during the production of cement, according to Davidovits [1]. The demand for research regarding friendly environmental construction materials, a decrement the carbon dioxide emissions into the air, and a reduction of cost are important needs for sustainable development all around the world. Many works have been carried out to develop a new eco-friendly and green material used to alter cement in concrete. “Geopolymers” was a term invented by Davidovits [2] in the 1970s which can be used to be describe new materials or alternative binders in concrete.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
