Performance of high strength rubberized concrete in aggressive environment

Thomas, Blessen Skariah; Gupta, Ramesh Chandra; Mehra, Priyansha; Kumar, Sanjeev

doi:10.1016/j.conbuildmat.2015.03.012

Cited by 175 publications

(82 citation statements)

References 19 publications

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“…In the latter case the use of volcanic products such as pumice powder can be useful in waste management. Many mixtures of ordinary and highstrength concrete are manufactured with recycled aggregates or waste materials as rubbered concrete [10,11] with effective contributions to waste disposal and environmental issues. Moreover, due to its pozzolanic power, pumice can be associated to recycled aggregates because the increment of strength due to pozzolanic properties (associated to ordinary Portland cement) can counterbalance the weakening of mechanical properties attributable to rubbers or other recycled aggregates.…”

Section: Literature Reviewmentioning

confidence: 99%

Pumice powder as filler of self-compacting concrete

Granata

2015

Construction and Building Materials

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Section: Literature Reviewmentioning

confidence: 99%

Pumice powder as filler of self-compacting concrete

Granata

2015

Construction and Building Materials

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“…e concrete energyabsorbing capacity was enhanced by adding crumb rubber, which was found by Li et al [6]. Moreover, CRC has been proven to have crack resistance [7], dynamic behavior and fatigue behavior [8], superior acoustical properties, better resistance to abrasion [9], and electrical resistivity [10]. us, CRC provides sufficient environmental benefits and economic significance.…”

Section: Introductionmentioning

confidence: 81%

Mechanical Properties of Steel Fibers and Nanosilica Modified Crumb Rubber Concrete

Wang

Chen

Gao

et al. 2018

Advances in Civil Engineering

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Crumb rubber concrete (CRC) is an environment-friendly material using crumb rubber as a composition of cement concrete. It provides an alternative method for recycling of waste tires scientifically. CRC exhibits numerous advantages compared to ordinary concrete. However, the application of CRC is limited due to its low compressive and tensile strengths. is paper puts forward a new modified method by adding steel fibers and nanosilica in CRC. Material properties' testing of eighteen concrete mixtures was investigated, considering different strength grades of CRC and crumb rubber contents. In addition, four different steel fiber contents (0%, 0.5%, 1.0%, and 1.5%) and three different nanosilica content (0%, 1%, and 2%) were taken into consideration. e brittle failure of the CRC can be improved and the mechanical properties can be enhanced according to the test results. More importantly, the modified CRC with 1.0% steel fiber content has relatively high compressive and splitting tensile strengths. Furthermore, the noncompactness of CRC can be effectively improved by nanosilica, enhancing the efficiency of steel fibers simultaneously. Finally, the failure mechanism of the modified CRC is discussed in this paper.

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“…With the rapid developments in the transportation and automobile industry and the improvement of living standards, almost 1 billion tires are thrown out annually, and more than 50% are discarded without any treatment . This situation represents a tricky environmental problem that needs to be resolved urgently.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of microcracks in the interfacial transition zone of recycled rubber concrete

Wang

2019

Structural Concrete

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This work focuses on the feasibility of recycling waste tire rubber aggregates into recycled concrete. The performance of interface transition zone (ITZ) is a key factor affecting the mechanical properties and durability of concrete. The influence of rubber particle size (5-10, 10-20, 20-50, and 50-90 mesh) and volume fraction of rubber aggregate (0, 10, and 20%) on the ITZ of common and rubber aggregatecement pastes was studied. Scanning electron microscopy was used to observe the microstructure of recycled rubber concrete cured at constant temperature and humidity for 28 days. Moreover, the size of microcracks in the ITZ area was evaluated. Results showed that the crack width of the ITZ between the rubber and cement paste (ITZ-R) and between the ordinary aggregate and cement paste (ITZ-S) showed similar variation patterns. The addition of 50-90 mesh rubber powder improved the ITZ micro-crack structure of rubber concrete. Increasing the rubber content and particle size also increased the microcrack width of ITZ. The size of rubber aggregate was the key factor affecting the crack width in ITZ. Finally, the addition of rubber inhibited the hydration degree of cement, reduced the formation of hydration products in ITZ and substantially affected ITZ-R. K E Y W O R D Sinterfacial transition zone, microcracks, recycled rubber concrete, scanning electron microscopy

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Performance of high strength rubberized concrete in aggressive environment

Cited by 175 publications

References 19 publications

Pumice powder as filler of self-compacting concrete

Pumice powder as filler of self-compacting concrete

Mechanical Properties of Steel Fibers and Nanosilica Modified Crumb Rubber Concrete

Evaluation of microcracks in the interfacial transition zone of recycled rubber concrete

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