Improving the Structural Characteristics of Heavy Concrete by Combined Disperse Reinforcement
| Autor: | Levon Mailyan, Evgenii M. Shcherban, Diana El'shaeva, Alla S. Smolyanichenko, Aleksandr V. Shilov, Alexey Beskopylny, Sergey A. Stel’makh, Besarion Meskhi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
Materials science QH301-705.5 QC1-999 0211 other engineering and technologies 02 engineering and technology Fiber-reinforced concrete law.invention fiber-reinforced concrete ultimate deformations law 021105 building & construction Ultimate tensile strength General Materials Science Fiber Composite material hybrid reinforcement Biology (General) Instrumentation Elastic modulus QD1-999 Fluid Flow and Transfer Processes Process Chemistry and Technology Physics General Engineering 021001 nanoscience & nanotechnology compressive strength optimal composition Engineering (General). Civil engineering (General) Computer Science Applications Chemistry Compressive strength tensile strength Basalt fiber Volume fraction Deformation (engineering) TA1-2040 0210 nano-technology |
| Zdroj: | Applied Sciences, Vol 11, Iss 6031, p 6031 (2021) Applied Sciences Volume 11 Issue 13 |
| ISSN: | 2076-3417 |
| Popis: | The development of perspective concrete mixes capable of resisting the action of external loads is an important scientific problem in the modern construction industry. This article presents a study of the influence of steel, basalt, and polypropylene fiber materials on concrete’s strength and deformation characteristics. A combination of various types of dispersed reinforcement is considered, and by methods of mathematical planning of the experiment, regression dependences of the strength and deformation characteristics on the combination of fibers and their volume fraction are obtained. It was shown that the increase in compressive strength was 35% in fiber-reinforced concretes made using a combination of steel and basalt fiber with a volume concentration of steel fiber of 2% and basalt fiber of 2% tensile strength in bending increased by 79%, ultimate deformations during axial compression decreased by 52%, ultimate deformation under axial tension decreased by 39%, and elastic modulus increased by 33%. Similar results were obtained for other combinations of dispersed reinforcement. The studies carried out made it possible to determine the most effective combinations of fibers of various types of fibers with each other and their optimal volume concentration. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|