Structural Behavior of Reinforced Lightweight Concrete Beams made of Recycled Wood Aggregates
DOI:
https://doi.org/10.23918/eajse.v9i2p22Keywords:
Lightweight Concrete, Recycled Waste Wood, Structural Behavior, SustainabilityAbstract
This research includes the study of structural behavior of sustainable lightweight reinforced concrete beams with waste wood particles as aggregates. Wood particles of aggregate size have been used in variation with percentages (0%, 5%, 10%, and 15%) of the cement weight. The concrete produced becomes light weight reaching 1600 kg/m3 (33% reduction) The workability kept constant by controlling mix properties by a superplasticizer SP doses. Reference beams were made also for comparative purposes. Compressive strength ranged between 60 MPa for control samples to 30 MPa for 15% wood particle concrete and respective flexural strengths were 22 to 12 MPa. Twelve beams are molded of (100×150×900mm) dimension with different steel reinforcement ratio (ρ). Load-deflection relationships of beams were established. The effects of steel reinforcement ratio (ρ) on the displacement ductility of reinforced concrete beams were concluded. The lightweight beams have a softer response in terms of structural behavior, with more ductility than those made by reference concretes. These findings provide encouragement to use the wood particles lightweight concrete in structures. However, durability remains the main concern. The concrete should be protected from severe exposure and humidity. Therefore, it is recommended to be used in indoor exposure.
References
[1] Al-Numan BS, Thamir MA. Proposed Sustainability Checklist for Construction Projects,
Eurasian Journal of Science & Engineering. 2018; 3(3): 154-159.
https://doi.org/10.23918/eajse.v3i3p154
[2] Ahmed JK, Al Numan BS. Investigation of Using Human Hair as Fiber Reinforcement in
Concrete. Eurasian Journal of Science and Engineering. 2021; 7(2): 194-200.
https://doi.org/10.23918/eajse.v7i2p194
[3] Al-Numan BS, Ahmed RS. Investigation on Fresh Properties of Concrete Made with
Recycled Lightweight Aggregates from Demolished Bricks. Eurasian Journal of Science &
Engineering. 2019; 5 (1): 48-55. https://doi.org/10.23918/eajse.v5i1p48
[4] Al-Numan BS, Slaby AA, Al Hadithi AI. Some mechanical properties of sawdust
concrete Iraqi Journal of Civil Engineering. 2004.
[5] Al Numan BS, Ahmed JK. Effect of wood-particles aggregate percentage on some
physical properties of concrete. IOP Conference Series: Materials Science and
Engineering. 2019; 574(1): 012012. https://doi.org/10.1088/1757-899X/574/1/012012
[6] ACI Committee 213. ACI 213R-14 Guide for Structural Lightweight-Aggregate Concrete;
American Concrete Institute: Farmington Hills, MI, USA. 2014; 53.
[7] Ahmed JK, Al-Numan BS. Thermal properties of lightweight wood-particles aggregate
concrete. International journal of mechanical and production engineering research and
development. 2018; 8(3): 235-242.
[8] Li M, Khelifa M, El Ganaoui M. Mechanical characterization of concrete containing wood
shavings as aggregates. International Journal of Sustainable Built Environment. 2017 Dec
1; 6(2): 587-96. https://doi.org/10.1016/j.ijsbe.2017.12.005
[9] Clouston P, Bathon LA, Schreyer A. Shear and bending performance of a novel wood–
concrete composite system. Journal of Structural Engineering. 2005 Sep; 131(9): 1404-12.
https://doi.org/10.1061/(ASCE)0733-9445(2005)131:9(1404)
[10] Gutkowski R, Brown K, Shigidi A, Natterer J. Laboratory tests of composite wood–
concrete beams. Construction and Building Materials. 2008 Jun 1; 22(6): 1059-66.
https://doi.org/10.1016/j.conbuildmat.2007.03.013
[11] Gutkowski R, Brown K, Shigidi A, Natterer J. Laboratory tests of composite wood–
concrete beams. Construction and Building Materials. 2008 Jun 1; 22(6): 1059-66.
[12] Raut SP, Ralegaonkar RV, Mandavgane SA. Development of sustainable construction
material using industrial and agricultural solid waste: A review of waste-create bricks.
Construction and building materials. 2011 Oct 1; 25(10): 4037-42.
https://doi.org/10.1016/j.conbuildmat.2011.04.038
[13] Al Rim K, Ledhem A, Douzane O, Dheilly RM, Queneudec M. Influence of the proportion
of wood on the thermal and mechanical performances of clay-cement-wood composites.
Cement and Concrete Composites. 1999 Aug 1; 21(4): 269-76.
https://doi.org/10.1016/S0958-9465(99)00008-6
[14] Jorge FC, Pereira C, Ferreira JM. Wood-cement composites: a review. European Journal
of Wood and Wood Products. 2004 Oct 1; 62(5): 370-7. https://doi.org/10.1007/s00107-
004-0501-2
[15] Bederina M, Laidoudi B, Goullieux A, Khenfer MM, Bali A, Quéneudec M. Effect of the
treatment of wood shavings on the physico-mechanical characteristics of wood sand
concretes. Construction and Building Materials. 2009 Mar 1; 23(3): 1311-5.
https://doi.org/10.1016/j.conbuildmat.2008.07.029
[16] Al- Numan BS, Ahmed JK. Properties of lightweight concrete made of waste wood
aggregates. Eurasian J. Sci. Eng. 2023; 9(2):100-114. https://doi.org/10.23918/eajse.v9i2p8
[17] ACI Committee. Building code requirements for structural concrete and commentary (ACI
318-19). American Concrete Institute: Farmington Hills, MI, USA. 2019: 623.
Downloads
Published
Issue
Section
License
License
Eurasian J. Sci. Eng is distributed under the terms of the Creative Commons Attribution License 4.0 (CC BY-4.0) https://creativecommons.org/licenses/by/4.0/
