Fire performance of recycled rubber-filled high-strength concrete

Olivares, Francisco Hernández; Barluenga, Gonzalo

doi:10.1016/s0008-8846(03)00253-9

Cited by 220 publications

(90 citation statements)

References 11 publications

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“…Due to its lower permeability, HPC has in general good resistance to fire, although the smaller pore network may cause explosive spalling once sufficiently high temperatures are reached [6]. Such spalling can be mitigated through the addition of soft polymers, such as crushed rubber, as they impart a higher elastic modulus to the concrete [7].…”

Section: Introductionmentioning

confidence: 99%

Improved Concrete Materials with Hydrogel-Based Internal Curing Agents

Krafcik

Macke

Erk

2017

Gels

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This research article will describe the design and use of polyelectrolyte hydrogel particles as internal curing agents in concrete and present new results on relevant hydrogel-ion interactions. When incorporated into concrete, hydrogel particles release their stored water to fuel the curing reaction, resulting in reduced volumetric shrinkage and cracking and thus increasing concrete service life. The hydrogel's swelling performance and mechanical properties are strongly sensitive to multivalent cations that are naturally present in concrete mixtures, including calcium and aluminum. Model poly(acrylic acid(AA)-acrylamide(AM))-based hydrogel particles with different chemical compositions (AA:AM monomer ratio) were synthesized and immersed in sodium, calcium, and aluminum salt solutions. The presence of multivalent cations resulted in decreased swelling capacity and altered swelling kinetics to the point where some hydrogel compositions displayed rapid deswelling behavior and the formation of a mechanically stiff shell. Interestingly, when incorporated into mortar, hydrogel particles reduced mixture shrinkage while encouraging the formation of specific inorganic phases (calcium hydroxide and calcium silicate hydrate) within the void space previously occupied by the swollen particle.

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Section: Introductionmentioning

confidence: 99%

Improved Concrete Materials with Hydrogel-Based Internal Curing Agents

Krafcik

Macke

Erk

2017

Gels

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“…Other researches deal with rubber addition being subject to static and dynamic actions for different temperatures and frequencies [12], or the elastic behavior and dynamic modulus elasticity [13]. In addition, the thermal performance [14,15], the behavior under fire [16] as well as the chemical stability of the cement concrete with crumbed rubber and the possible existence of new phases in rubberized concrete [17] have also been of study interest.…”

Section: Introductionmentioning

confidence: 99%

Influence of proportion and particle size gradation of rubber from end-of-life tires on mechanical, thermal and acoustic properties of plaster–rubber mortars

2013

Self Cite

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abstra ctThis work presents the main experimental results obtained from the study of plaster test pieces and boards with addition of various volumetric rubber fractions from mechanical grinding of end-of-life tires (ELTs), in three different particle size gradations. It includes a description of the materials employed, and their proportions. The physical and mechanical properties, as well as the thermal conductivity and acous-tic insulation properties are analyzed. Experimental results obtained for specimens with addition of recy-cled rubber are compared with similar ones, carried out on specimens of plaster of identical features without any addition, evaluating the influence of the particle size and mixture proportions. An improve-ment in thermal and acoustic performance has been obtained as well as a reduction in density, and as a result, some constructive applications for paving and slabs in rehabilitation works are proposed.

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“…One of the recommended solutions to solve this environmental problem is to incorporate rubber aggregates resulting from cutting worn tires in the cement concretes [1][2][3][4][5][6]. On this subject, several studies concerning the use of rubber aggregates resulting from crushing worn tires were carried out.…”

Section: Introductionmentioning

confidence: 99%

Effects of Recycled Tires Rubber Aggregates on the Characteristics of Cement Concrete

Boudaoud¹,

Beddar²

2012

OJCE

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This experimental work investigates the impact of substituting part of the conventional aggregates with rubber aggregates on certain characteristics of the cement concretes. This incorporation of rubber aggregates resulting from cutting worn tires in practical sizes decreases the mechanical resistances of the concretes while improving slightly the fluidity of the tested mixtures. The effect of these aggregates on the shrinkage of the concretes at an early age is appreciable and even very interesting for the concretes used, for example, in road construction. This technique of cutting worn tires without any further treatment makes it accessible to everyone which helps not only in saving the environment by getting rid of this cumbersome waste but also in saving traditional aggregates.

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Fire performance of recycled rubber-filled high-strength concrete

Cited by 220 publications

References 11 publications

Improved Concrete Materials with Hydrogel-Based Internal Curing Agents

Improved Concrete Materials with Hydrogel-Based Internal Curing Agents

Influence of proportion and particle size gradation of rubber from end-of-life tires on mechanical, thermal and acoustic properties of plaster–rubber mortars

Effects of Recycled Tires Rubber Aggregates on the Characteristics of Cement Concrete

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