PERFORMANCE OF GREEN FIBROUS CONCRETE PAVEMENT (RESEARCH NOTE)

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HASSANI A.; AHMADI M.; SOLEYMANI KERMANI M.R.; YOUSEFI H.

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Journal: Modares Civil Engineering journal Year:2016 | Volume:16 | Issue:1 Page(s): 179-187

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Title

PERFORMANCE OF GREEN FIBROUS CONCRETE PAVEMENT (RESEARCH NOTE)

Author(s)

HASSANI A. | AHMADI M. | SOLEYMANI KERMANI M.R. | YOUSEFI H. | Issue Writer Certificate

Keywords

CONSTRUCTION DEBRISQ2

CONCRETEQ2

RECYCLED STEEL FIBERQ2

Abstract

Nowadays the use of recycled materials in the industry is increasing. An example of this is production of environmentally friendly green CONCRETE. So far, various studies regarding the use of CONCRETE debris from demolished CONCRETE as aggregate in CONCRETE have been utilized. Fibers in CONCRETE pavements not only reduce the thickness of slab but also are useful economically as controls the shrinkage cracks and reduces the latitude satures which ends in reduction of water penetration to the base of the pavement, which means the reduction of repair and maintenance costs. Fiber ability to improve the characteristics of CONCRETE with recycled aggregates depends on the fiber type, its percentage, fiber aspect ratio, surface friction, and tensile strength of fibers. The recycle materials are composed of crushed CONCRETE, brick and other materials such as, small ceramic rubble and other debris. In this study recycled aggregate are used in a range of 0, 50 and 100 percent to replace natural aggregate. RECYCLED STEEL FIBERs from worn-out tire of vehicles also are used in two type of CONCRETE, the ordinary one and the CONCRETE containing recycled aggregates with volume percentage of 0.5 and 1 percent of the CONCRETE. To investigate the effect of aggregate on CONCRETE strength similar grading for both natural and recycled aggregate were used. After 28 days curing of the CONCRETE, compressive strength, indirect tensile strength and bending strength tests were carried out. Evaluation of the role of fibers and recycled aggregate in slab thickness of CONCRETE pavement of industrial floors was conducted. The amount of increase or reduction of CONCRETE strengths with recycled aggregates are depend on the water/cement ratio, the percentage of recycled aggregates, aggregate charactristics and humidity condition. The loss of CONCRETE strength containing recycled aggregates is remarkable by reduction of water/cement ratio, increasing the percentage of recycled aggregates and reduction of aggregates strength. Test results showed that the use of this type of fiber CONCRETE as a structural CONCRETE is acceptable. CONCRETE samples containing recycled aggregates represent different behavior under compressive strength, indirect tensile and bending test in a way that by increasing the percentage of recycled aggregates, bending strength would be increased on the contrary of the two other test. Yield line theory was used to investigate the role of steel recycled fiber and recycled aggregate to determine slab thickness CONCRETE containing recycled aggregates would result in a thinner slab thickness due to higher bending strength compare to ordinary CONCRETE. Adding fibers in order of 0.5% or 1% would not have meaningfull effect on the reduction of slab thickness. The calculation based on Yield line theory showed that the addition of RECYCLED STEEL FIBERs to the CONCRETE reduces the slab thickness approximately by 20%.

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APA: Copy

HASSANI, A., AHMADI, M., SOLEYMANI KERMANI, M.R., & YOUSEFI, H.. (2016). PERFORMANCE OF GREEN FIBROUS CONCRETE PAVEMENT (RESEARCH NOTE). MODARES CIVIL ENGINEERING JOURNAL, 16(1), 179-187. SID. https://sid.ir/paper/256741/en

Vancouver: Copy

HASSANI A., AHMADI M., SOLEYMANI KERMANI M.R., YOUSEFI H.. PERFORMANCE OF GREEN FIBROUS CONCRETE PAVEMENT (RESEARCH NOTE). MODARES CIVIL ENGINEERING JOURNAL[Internet]. 2016;16(1):179-187. Available from: https://sid.ir/paper/256741/en

IEEE: Copy

A. HASSANI, M. AHMADI, M.R. SOLEYMANI KERMANI, and H. YOUSEFI, “PERFORMANCE OF GREEN FIBROUS CONCRETE PAVEMENT (RESEARCH NOTE),” MODARES CIVIL ENGINEERING JOURNAL, vol. 16, no. 1, pp. 179–187, 2016, [Online]. Available: https://sid.ir/paper/256741/en

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