Shrinkage and creep in structural concrete with recycled brick aggregates

Gayarre, Fernando López; González, José; Pérez, César; López, Miguel Ángel Serrano; Ros, Pedro Serna; Martínez-Barrera, Gonzalo

doi:10.1016/j.conbuildmat.2019.116750

Cited by 28 publications

(2 citation statements)

References 22 publications

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“…The researchers have focused on several types of RA with various sources, sizes, and fields of use [9][10][11][12]. Many materials have been considered, such as plastic [13,14], ceramics [15], concrete [16], masonry [17], industrial and agricultural waste [18], and glass [19], along with several applications, such as concrete, mortars, pavements, and asphalt. However, while the concretes made with RA have been deeply examined, less is known about the mortars made with RA [2].…”

Section: Introductionmentioning

confidence: 99%

Mortars with Recycled Aggregates from Building-Related Processes: A ‘Four-Step’ Methodological Proposal for a Review

Vitale

Nicolella

2021

Sustainability

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Because the production of aggregates for mortar and concrete is no longer sustainable, many attempts have been made to replace natural aggregates (NA) with recycled aggregates (RA) sourced from factories, recycling centers, and human activities such as construction and demolition works (C&D). This article reviews papers concerning mortars with fine RA from C&D debris, and from the by-products of the manufacturing and recycling processes of building materials. A four-step methodology based on searching, screening, clustering, and summarizing was proposed. The clustering variables were the type of aggregate, mix design parameters, tested properties, patents, and availability on the market. The number and the type of the clustering variables of each paper were analysed and compared. The results showed that the mortars were mainly characterized through their physical and mechanical properties, whereas few durability and thermal analyses were carried out. Moreover, few fine RA were sourced from the production waste of construction materials. Finally, there were no patents or products available on the market. The outcomes presented in this paper underlined the research trends that are useful to improve the knowledge on the suitability of fine RA from building-related processes in mortars.

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Section: Introductionmentioning

confidence: 99%

Mortars with Recycled Aggregates from Building-Related Processes: A ‘Four-Step’ Methodological Proposal for a Review

Vitale

Nicolella

2021

Sustainability

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“…Tao et al [ 21 ] studied the transient strain of self-compacting concrete under variations of temperature level, heating rate, and stress level. Previous studies indicated that the creep behaviour of concrete depends on the aggregate type and temperature [ 22 , 23 ]. The interface zone of GHBC, exposed to high temperature, shows differences from other types of concrete owing to the unique microstructure with the GHB embedded within the cement matrix [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of High Temperature on Creep Behaviour of Glazed Hollow Bead Insulation Concrete

2020

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Glazed hollow bead insulation concrete (GHBC) presents a promising application prospect in terms of its light weight and superior fire resistance. However, only a few studies have focused on the creep behaviour of GHBC exposed to high temperatures. Therefore, in this study, the mechanism of high temperature on GHBC is analysed through a series of tests on uniaxial compression and multistage creep of GHBC, exposed from room temperature up to 800 °C. The results show a decrease in the weight and compressive strength of GHBC as the temperature rises. After 800 °C, the loss of weight and strength reach to 9.67% and 69.84%, respectively. The creep strain and creep rate increase, with a higher target temperature and higher stress level, while the transient deformation modulus, the creep failure threshold stress, and creep duration are reduced significantly. Furthermore, the creep of GHBC exhibits a considerable increase above 600 °C and the creep under the same loading ratio at 600 °C increases by 74.19% compared to the creep at room temperature. Indeed, the higher the temperature, the more sensitive the stress is to the creep. Based on our findings, the Burgers model agrees well with the creep test data at the primary creep and steady-state creep stages, providing a useful reference for the fire resistance design calculation of the GHBC structures.

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Microstructure and properties of concrete with ceramic wastes

Zeng

Liu

et al. 2022

Handbook of Sustainable Concrete and Industrial Waste Management

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Shrinkage and creep in structural concrete with recycled brick aggregates

Cited by 28 publications

References 22 publications

Mortars with Recycled Aggregates from Building-Related Processes: A ‘Four-Step’ Methodological Proposal for a Review

Mortars with Recycled Aggregates from Building-Related Processes: A ‘Four-Step’ Methodological Proposal for a Review

Effects of High Temperature on Creep Behaviour of Glazed Hollow Bead Insulation Concrete

Microstructure and properties of concrete with ceramic wastes

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