Mechanical Properties of Concrete with Recycled Tires and Silica Fume

Document Type : Original Research

Authors
M. S. Dehghan 1
M. Arezoumandi 1
F. Bohloli 1
M. Karimaei Tabarestani 2
M. Saadatkhosh 3
1 Shahab danesh University
2 Department of Civil Engineering, Shahid Rajaee Teacher Training University
3 Department of civil Engineering, Shahabdanesh University, Qom, Iran
Abstract
Sustainability helps the environment by reducing the consumption of non-renewable natural resources. Concrete uses a significant amount of non-renewable resources. Efforts aimed at producing environmentally friendly concrete can play a major role in securing sustainable construction. Candidate technologies for sustainable concrete materials include the incorporation of supplementary cementitious materials (SCMs) such as fly ash, silica fume and granulated blast furnace slag as a partial replacement for portland cement; the incorporation of recycled materials in concrete production. As a result, an experimental investigation was conducted to study the hardened properties of concrete constructed with 10% and 15% recycled tires (coarse and fine) as well as 6% silica fume. This experimental program consisted of ten mix designs. The hardened properties (compressive strength and tensile splitting strength) of concrete were compared with the provisions of the international design codes (U.S., Australia, Canada, Europe, and Japan). Results of this study show that using coarse recycled tires in the mix designs decreases compressive strengths between 35% and 45% and splitting tensile strength up to 20%. To overcome inferior hardened properties of recycled tire concrete mixes, silica fume (6%) has been added to the recycled tire concrete mixes. Results of the mixes including both recycled tire concrete and silica fume show better hardened properties compared with the mixes without silica fume, but still the hardened properties of the mixes with recycled tire and silica fume are less than the conventional concrete.

Keywords

Subjects

[1] Siddique, R. and Iqbal Khan, M. 2011. Supplementary Cementing Materials, Engineering Materials, Springer-Verlag Berlin Heidelberg.
[2] ASTM C1240 -11. 2011. Standard Specification for Use of Silica Fume for Use as a Mineral Admixture in Hydraulic-Cement Concrete, Mortar, and Grout.
[3] Karbalaei, M., Sohrabi, M. R. 2010. Study and Comparison of Compressive Strength Of Concrete Containing Crumb Rubber And Rubber Powder With Nano Silica. Amirkabir Journal of Civil Engineering, 43(2): 63-70. (In Persian).
[4] Mazloom, M., Ramezanianpour, A. and Brooks, J.J. 2004. Effect of silica fume on mechanical properties of high-strength concrete, Cement and Concrete Composites, 26(4), 347-357.
[5] Mehmet Gesog˘lu. 2007. Strength development and chloride penetration in rubberized concretes with and without silica fume, Springer, Materials and Structures, 40: 953–964.
[6] Al-Mutairi Nayef. 2010. Effect of microsilica addition on compressive strength of rubberized concrete at elevated temperatures,Springer , J Mater Cycles Waste Manag (2010) 12: 41–49.
[7] Li Lijuan 2014. Mechanical properties and constitutive equations of concrete containing a low volume of tire rubber particles ,Elsevier,(j.conbuildmat.2014.07.105) .
[8] ASTM C150-11. 2011. Standard Specification for Portland cement.
[9] ASTM C29-11. 2011. Standard Specification for Bulk Density (“Unit Weight”) and Voids in Aggregate.
[10] ACI Committee 211. 1991. Guide for selecting proportions for high-strength concrete with Portland cement and fly ash. ACI226.4R, ACI Materials Journal.
[11] ASTM C39-11. 2011. Standard Specification for Compressive Strength of Cylindrical Concrete Specimens.
[12] ASTM C496-11. 2011. Standard Specification for Splitting Tensile Strength of Cylindrical Concrete Specimens.
[13] ACI Committee 363. 1992. State of the art report on high-strength concrete, American Concrete Institute, ACI363-R, Farmington Hills (Michigan).
[14] BS EN 206-1. 2001. Concrete, Specification, performance, production and conformity.
[15] AS 3600-2009. 2009. Concrete structures, standard by Standards Australia.
[16] JSCE Guidelines for Concrete. 2007. Standard Specifications for concrete structures, No 16, Japan Society of Civil Engineers.
[17] CEB-FIP. 1990. High-strength concrete state of the art report, London, Thomas Telford.
[18] AASHTO. 2006. Interim bridge design specifications and commentary, American Association of Highway and Transportation Officials (AASHTO), Washington (DC).
[19] Takafumi N. 2007. Database for Mechanical Properties of Concrete, http://bme.t.u-tokyo.ac.jp/researches/detail/concreteDB/index.html.
[20] Minitab 17 Statistical Software [Computer software]. Incorporation,Minitab
Modares Civil Engineering journal
Volume 21, Issue 3
May and June 2021
Pages 107-118