Influence of Filler Addition on Mechanical Behavior of Cementitious Mortar-Rubber Aggregates: Experimental Study and Modeling

Turki, Mohamed; Zarrad, Ines; Bretagne, Estelle; Quéneudec, M.

doi:10.1061/(asce)mt.1943-5533.0000512

Cited by 16 publications

(6 citation statements)

References 19 publications

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“…A general increase in porosity is shown by the increase in rubber aggregates content in natural sand volume replacement compared to the reference mortar. Similar results are reported in other studies carried out on RW-based mortars [37] and rubberized concrete [46,55,56]. The order increases are 24.55, 28.22, and 30.42% for 5RW, 10RW, and 15RW, respectively, compared to the reference mortar.…”

Section: Porosity Accessible To Watersupporting

confidence: 89%

“…Previous studies have mentioned that immersing the waste rubber into a solution of NaOH [28], covering it with a thin layer of cement [29], using styrene-butadiene rubber (SBR) [30], using organic sulfur [31], and using a silane coupling agent with a coating [32] all contributed to improved strength. Improved properties were also shown in rubber concrete with addition of silica fume (SF) [33,34], fly ash [35,36], calcareous [37], steel fibers [38], and polyvinyl alcohol fibers (PVA) [39][40][41][42]. Copetti et al [34] replaced Portland cement (7.5% and 15% ratios) with silica fume in rubber concrete, up to 80% gains in compressive strength 28 days with 30% rubber replacement were resulted.…”

Section: Introductionmentioning

confidence: 99%

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Performance Evaluation of Cementitious Composites Containing Granulated Rubber Wastes, Silica Fume, and Blast Furnace Slag

Tagba

Jiang

et al. 2021

Crystals

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In this study, rubberized cementitious materials are produced with recycled rubber waste as an alternative to fine aggregate. Mixtures with different additions to rubber wastes (RW), silica fume (SF), and blast furnace slag (BFS) have been designed and characterized. Hardened properties including compressive and bond strength, shrinkage, water-accessible porosity, rapid chloride migration, and microstructure were investigated. The results show that the addition of SF and BFS improves the performances of rubberized mortars and reduces shrinkage. The incorporation of 5% RW with 20% BFS increases compressive strength and reduces water-accessible porosity. Ion chloride resistance was enhanced by a combination of 15% RW, 8% SF, and 20% BFS. The addition of SF and BFS as cement replacement improves the performance of mortars due to their filling effect and a pozzolanic reaction, which has been verified by a microstructural analysis.

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Section: Porosity Accessible To Watersupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Cementitious Composites Containing Granulated Rubber Wastes, Silica Fume, and Blast Furnace Slag

Tagba

Jiang

et al. 2021

Crystals

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“…Therefore, several researchers suggested that the bonding among cement pastes and particles of the WRTCs can be improved either by treating the rubber aggregates with the NaOH solution or adding supplementary cementitious materials (SCMs) [ 16 , 17 , 18 ]. Turki et al [ 19 ] also demonstrated that the mechanical properties of the rubberized concretes could be improved through the combination of mineral fillers, such as siliceous or limestone, with the rubber.…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Modified Rubberized Concrete Exposed to Aggressive Environments

et al. 2021

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Recycling of the waste rubber tire crumbs (WRTCs) for the concretes production generated renewed interest worldwide. The insertion of such waste as a substitute for the natural aggregates in the concretes is an emergent trend for sustainable development towards building materials. Meanwhile, the enhanced resistance of the concrete structures against aggressive environments is important for durability, cost-saving, and sustainability. In this view, this research evaluated the performance of several modified rubberized concretes by exposing them to aggressive environments i.e., acid, and sulphate attacks, elevated temperatures. These concrete (12 batches) were made by replacing the cement and natural aggregate with an appropriate amount of the granulated blast furnace slag (GBFS) and WRTCs, respectively. The proposed mix designs’ performance was evaluated by several measures, including the residual compressive strength (CS), weight loss, ultrasonic pulse velocity (UPV), microstructures, etc. Besides, by using the available experimental test database, an optimized artificial neural network (ANN) combined with the particle swarm optimization (PSO) was developed to estimate the residual CS of modified rubberized concrete after immersion one year in MgSO4 and H2SO4 solutions. The results indicated that modified rubberized concrete prepared by 5 to 20% WRTCs as a substitute to natural aggregate, provided lower CS and weight lose expose to sulphate and acid attacks compared to control specimen prepared by ordinary Portland cement (OPC). Although the CS were slightly declined at the elevated temperature, these proposed mix designs have a high potential for a wide variety of concrete industrial applications, especially in acid and sulphate risk.

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“…The results from the four developed prediction models were compared with the verification data to confirm the feasibility of this approach for one type of metal materials. Furthermore, a similar modelling research elaborated by Turki et al (2012) investigated the effect of filler on the mechanical behaviour modelling of mortar-rubber by using the ANFIS method. Other modelling studies (Turki, Zarrad, Mollines, Rouis and Queneudec, 2009) on the mechanical behaviour modelling of mortarrubber aggregates composite took into account the influence of the rubber volume fraction on mortar phase.…”

Section: Introductionmentioning

confidence: 99%

“…Compressive strength of cementitious materials ANFIS does not provide a specific equation in comparison with other types of models (Neil and Senouci, 1994;Shafieyzadeh, 2013;Turki et al, 2012). The model was developed by Turki, Zarrad, Mollines, Rouis and Queneudec (2009) and Turki, Ben Naceur, Makni, Rouis and Sai (2009) in the thermodynamic frame of non-associated plasticity with the Continuum Damage Mechanics theory.…”

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confidence: 99%

Prediction performance of compressive strength of cementitious materials containing rubber aggregates and filler using fuzzy logic method

Turki¹,

Zarrad²,

Quéneudec³

et al. 2017

MMMS

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Purpose The purpose of this paper is to focus on compressive strength modelling of cementitious mixtures like mortar and Roller-compacted concrete (RCC) containing rubber aggregates from shredded worn tires and filler using adaptive neuro fuzzy inference systems (ANFIS). Design/methodology/approach The volume substitution contains a ratio of rubber aggregates vs sand in mortar and with crushed sand in RCC and ranges from 0 to 50 per cent. As for the filler, they are substituted with sand by 5 per cent in mortar mixture. The methodology consists of optimizing the percentage of substitution in cementitious mixtures to ensure better mechanical properties of materials like compressive strength. The prediction of compressive strength and the optimization of cementitious mixtures encourage their uses in such construction pavements, in area games or in other special constructions. These cementitious materials are considered as friendly to the environment by focussing on their improved deformability. Findings The results of this paper show that the performance of the constructed fuzzy method was measured by correlation of experimental and model results of mortar and RCC mixtures containing both rubber aggregates and filler. The comparison between elaborated models through the error and the accuracy calculations confirms the reliability of the ANFIS method. Originality/value The purpose of this paper is to assess the performance of the constructed fuzzy model by the ANFIS method for two types of cementitious materials like mortar and RCC containing rubber aggregates and filler. The fuzzy method could predict the compressive strength based on the limited measurement values in the mechanical experiment. Furthermore, the comparison between the elaborated models confirms the reliability of the ANFIS method through the error and the accuracy calculations for the best cementitious material mixtures.

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Influence of Filler Addition on Mechanical Behavior of Cementitious Mortar-Rubber Aggregates: Experimental Study and Modeling

Cited by 16 publications

References 19 publications

Performance Evaluation of Cementitious Composites Containing Granulated Rubber Wastes, Silica Fume, and Blast Furnace Slag

Performance Evaluation of Cementitious Composites Containing Granulated Rubber Wastes, Silica Fume, and Blast Furnace Slag

Performance Evaluation of Modified Rubberized Concrete Exposed to Aggressive Environments

Prediction performance of compressive strength of cementitious materials containing rubber aggregates and filler using fuzzy logic method

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