Journal ArticleDOI
Workability, mechanical properties, and chemical stability of a recycled tyre rubber-filled cementitious composite
D Raghavan,H Huynh,C. F Ferraris +2 more
TLDR
The workability and mechanical properties of mortar containing shredded automobile and truck tyres were evaluated in this paper, where two different shapes of rubber particles were used as constituents of mortar: (1) granules about 2 mm in diameter, and (2) shreds having two sizes which were, nominally, 5.5 mm×1.2 mm and 10.8 mm × 1.8mm (length×diameter).Abstract:
The workability and mechanical properties of mortar containing shredded automobile and truck tyres were evaluated. Two different shapes of rubber particles were used as constituents of mortar: (1) granules about 2 mm in diameter, and (2) shreds having two sizes which were, nominally, 5.5 mm×1.2 mm and 10.8 mm×1.8 mm (length×diameter). As expected, the geometry of the rubber particles influenced the fracture behaviour of rubber-containing mortar. The addition of rubber led to a decrease in flexural strength and plastic shrinkage cracking of mortar. The crack width and crack length due to plastic shrinkage were reduced for mortar containing the 10.8×1.8 mm rubber shreds compared with a mortar without shreds. The rheological properties of the mortar containing rubber shreds were comparable to those of a mortar without rubber and yielded lower plastic viscosity than a mortar containing 25.4 mm×15 μm (length×diameter) polypropylene fibres. The alkaline stability of rubber in mortar was also evaluated by immersing rubber shreds in NaOH and Ca(OH)2 solutions for 4 mon and the results showed that there is less than 20% change in stress and strain value. The findings of the research suggest that automobile and truck tyres can be recycled by shredding and incorporating them into mortar and probably concrete for certain infrastructural applications. © 1998 Chapman & Hallread more
Citations
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Journal ArticleDOI
Properties of concrete containing scrap-tire rubber--an overview.
Rafat Siddique,Tarun R. Naik +1 more
TL;DR: An overview of some of the research published regarding the use of scrap-tires in portland cement concrete and the benefits of using magnesium oxychloride cement as a binder for rubberized concrete mixtures are presented.
Journal ArticleDOI
Use of tire rubber particles as addition to cement paste
N Segre,Inés Joekes +1 more
TL;DR: In this paper, the surface modification of powdered tire rubber to increase its adhesion to cement paste was studied and the results of fracture energy and flexural and compressive strength showed that the addition of rubber particles improves the toughness and reduces the porosity of the specimens.
Journal ArticleDOI
A comprehensive review on the applications of waste tire rubber in cement concrete
TL;DR: In this article, the authors present an overview of some of the research published regarding the fresh and hardened properties of rubberized concrete and show that there is a promising future for the use of waste tire rubber as a partial substitute for aggregate in cement concrete.
Journal ArticleDOI
Properties of rubberized concretes containing silica fume
TL;DR: In this article, a test program was carried out to develop information about the mechanical properties of rubberized concretes with and without silica fume, which were obtained by partially replacing the aggregate with rubber contents varying from 2.5% to 50% by total aggregate volume.
Journal ArticleDOI
Properties and durability of concrete containing polymeric wastes (tyre rubber and polyethylene terephthalate bottles): An overview
TL;DR: In this paper, the performance of concrete containing polyethylene terephthalate bottles (PET) and polypropylene rubber (PPB) has been investigated and the effect of waste treatments, the size of waste particles and the waste replacement volume on the fresh and hardened properties of concrete.
References
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Journal ArticleDOI
Cement-based materials containing shredded scrap truck tyre rubber
N.I. Fattuhi,L.A. Clark +1 more
TL;DR: In this article, Cement paste, mortar, and concrete (containing opc or opc and pfa) mixes were prepared using various proportions of either rubber crumb or low-grade rubber obtained from shredding scrap tyres.
Book
Workability and quality control of concrete
TL;DR: The importance of workability standard tests for workability flow properties of fresh concrete principles of measurement was highlighted in this paper, where the two-point workability test workability expressed in terms of two constants extremely low workability concretes factors affecting workability - time and properties of mix components effect of mix proportions effect of chemical admixtures effect of cement replacements and fibres workability and practical processes specification of the workability measurement as a means of quality control.
Journal ArticleDOI
Flexural toughness of steel fiber reinforced concrete
TL;DR: In this paper, a relatively new procedure was used to measure the deflections in this suudy of the flexural behavior of steel fiber reinforced concrete (SRC), and the results indicated that fiber content in the range of 50 to 100 lb/cu yd provides excellent ductility for normal strength concrete.
Journal ArticleDOI
Mechanical properties of concrete materials reinforced with polypropylene or polyethylene fibers
TL;DR: In this paper, the effectiveness of fibrillated polypropylene and high-modulus polyethylene fibers, both used at relatively low volume fractions, in enhancing the mechanical properties of concrete materials was compared.
Journal ArticleDOI
Tyre rubber/cement matrix composites
TL;DR: In this paper, granulated tyre rubbers were incorporated in Portland Type 1 cement pastes to improve the mechanical properties of these composites, including compressive, diametral tensile, and flexural strength under freezing and thawing cycles.