A comparative analysis of the properties of recycled and natural aggregate in masonry mortars

Martínez, Iván López; Etxeberria, Miren; Pavón, Elier; Díaz, Nelson

doi:10.1016/j.conbuildmat.2013.08.049

Cited by 96 publications

(75 citation statements)

References 19 publications

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“…Both materials were classified as non-reactive according to UNE 146507-1:1999. All results were in agreement with the properties described in the literature for RA from CDW (17,22).…”

Section: Materials Characterizationsupporting

confidence: 81%

“…Dapena et al (14) and Vegas et al (15) found no significant differences with replacement ratios below 20% and 25%, respectively. Martínez et al (17) found lower densities in mortars manufactured with RA from CDW. Neno et al (19) showed a similar trend, although in that case the authors found a small increase with a 20% replacement ratio.…”

Section: Dry Bulk Density Of 28-day Hardened Mortarmentioning

confidence: 99%

“…Other authors studied water retentivity (prEN 1015-8:1998), a property related to workability. Vegas et al (15) showed that replacement ratios below 25% of natural sand by fine RCA did not affect the water retentivity of fresh mortar, and Martínez et al (17) found minimum differences in mortars manufactured with a total replacement level of low-quality natural sand with different types of recycled aggregates from CDW.…”

Section: Workabilitymentioning

confidence: 99%

See 2 more Smart Citations

A proposal for the maximum use of recycled concrete sand in masonry mortar design

Ledesma¹,

Jiménez²,

Ayuso³

et al. 2016

Mater. construcc.

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Natural sand mining from rivers and seashores is causing serious environmental problems in many parts of the world, whereas the fine fraction from recycling concrete waste is underutilized as a construction material. The aim of this paper is to determine the maximum replacement level of natural sand by recycled sand in the manufacturing of masonry mortar (M-10). For this purpose, five replacement levels were tested: 0%, 25%, 50%, 75% and 100% by volume. The mixes were made using cement CEM II/BL 32.5 N in a volumetric proportion of cement-to-aggregate of 1:5. A commercial admixture was used at a constant content. The amount of water was variable to achieve a consistency of 175±10 mm. The short-and long-term mortar properties were evaluated. The data were analyzed using a one-way ANOVA. In conclusion, a maximum percentage of 50% recycled concrete sand can be used in an indoor environment. RESUMEN: Propuesta de máximo uso de arena reciclada de hormigón en el diseño de morteros de albañilería.La extracción de arena natural de ríos y costas está provocando graves problemas ambientales en muchas partes del mundo, mientras que la fracción fina de los áridos reciclados de residuos de hormigón está infrautilizada como material de construcción. El objetivo de este artículo es determinar el máximo porcentaje de sustitución de arena natural por arena reciclada en la fabricación de morteros M-10. Cinco niveles de sustitución en volumen fueron ensayados: 0%, 25%, 50%, 75% y 100%. Las mezclas fueron hechas con cemento CEM II/BL 32,5 N en una relación volumétrica cemento-árido de 1:5. Se utilizó un aditivo comercial a dosis constante. El agua se ajustó experimentalmente para conseguir una consistencia de 175±10 mm. Se evaluaron las propiedades de los morteros a corto y largo plazo. Los datos se analizaron mediante una ANOVA-simple. En conclusión, un porcentaje máximo del 50% de arena reciclada de hormigón puede usarse en interiores.

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“…Both materials were classified as non-reactive according to UNE 146507-1:1999. All results were in agreement with the properties described in the literature for RA from CDW (17,22).…”

Section: Materials Characterizationsupporting

confidence: 81%

Section: Dry Bulk Density Of 28-day Hardened Mortarmentioning

confidence: 99%

Section: Workabilitymentioning

confidence: 99%

See 1 more Smart Citation

A proposal for the maximum use of recycled concrete sand in masonry mortar design

Ledesma¹,

Jiménez²,

Ayuso³

et al. 2016

Mater. construcc.

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“…However, fine crushed brick aggregates present the best mortar-brick bond strength. Martínez et al (2013) compared the properties of mortars made using three types of natural sand and three types of recycled aggregates from concrete, ceramic and masonry waste. 1: 6 cementaggregate proportion and 100% substitution of natural sand by recycled aggregates rate were used.…”

Section: Literature Reviewmentioning

confidence: 99%

Comparative study of three types of fine recycled aggregates from construction and demolition waste (CDW), and their use in masonry mortar fabrication

Saíz

Cortina

Martínez

et al. 2016

Journal of Cleaner Production

153

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This research aims to study feasibility of incorporation of fine fraction of recycled aggregates coming from construction and demolition waste in cement-based masonry mortar fabrication. Initially, three types of recycled aggregates: concrete, mixed and ceramic recycled aggregates, were characterized in terms of physical, mechanical and chemical properties. There were used 1 :3 and 1 :4 cement-toaggregate proportions and replacement percentages of 50%, 75% and 100% respectfully far three types of studied recycled aggregates.Physical characterization of recycled aggregates shows a continuous size distribution curve, lower density and higher absorption, what makes the usage of additive necessary to obtain appropriate consistency. Main crystalline phases shown in the X-ray diffraction analysis were: calcite, quartz and gypsum. According to the results of the dosages study, recycled mortars present poorer behaviour than mortars fabricated using natural stand, however, complying with the limits established by the standards and manufacturers. Therefore, the results of this study suggest the possibility to replace 100% of natural sand with analyzed recycled aggregates.

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“…In order to ensure the growth of these indispensable building materials, the sustainable development approach must be integrated into their production, thus achieving a balance between environmental protection constraints and economic and social considerations [1][2][3][4][5]. Therefore, in view of the increasing need for materials resources and the need to preserve the environment in a sustainable development vision, it has become necessary and relevant to explore all possibilities for reuse and recovery of waste and -industrial products, particularly in the field of civil engineering.…”

Section: Introductionmentioning

confidence: 99%

Physical and mechanical properties of cement mortar made with brick waste

Guermazi

Boukhelkhal

2018

MATEC Web Conf.

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Abstract. The development of new building materials is a current problem where researchers are trying to find the right materials for each region and returning cheapest countries. Recycling and recovery of waste are now considered as a promising solution to meet the deficit between production and consumption and protecting the environment. This work focused on the study of the effect of brick waste in the production of cement mortar with substitution rates ranging from 5-30% by weight of cement and to compare its performance with fresh and hardened state with ordinary mortar considered as control mortar. Compressive and tensile strengths up to 28 days of age were compared with those of controlled mortar. Water absorption was also measured at 28 days of age. The test results indicate the beneficial effect of brick waste powder on performance of cement mortar with an optimum of 15% of cement weight substitution.

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A comparative analysis of the properties of recycled and natural aggregate in masonry mortars

Cited by 96 publications

References 19 publications

A proposal for the maximum use of recycled concrete sand in masonry mortar design

A proposal for the maximum use of recycled concrete sand in masonry mortar design

Comparative study of three types of fine recycled aggregates from construction and demolition waste (CDW), and their use in masonry mortar fabrication

Physical and mechanical properties of cement mortar made with brick waste

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