New System of Shrinkage Measurement through Cement Mortars Drying

Saíz, Pablo; Morón, Carlos; García-Fuentevilla, Luisa

doi:10.3390/s17030522

Cited by 20 publications

(12 citation statements)

References 21 publications

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“…Within these recycled mortars, those made with ceramic recycled aggregate had higher shrinkage values than their counterparts made with recycled aggregate of concrete. Thus, it can be verified that, in accordance with other studies, the incorporation of this type of CDW in the manufacture of mortars increases the shrinkage in mortars [66].…”

Section: Physical Properties and Other Testssupporting

confidence: 88%

Influence of Recycled Aggregates on the Mechanical Properties of Synthetic Fibers-Reinforced Masonry Mortars

et al. 2021

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The construction sector is one of the main consumers of raw materials and generates a high volume of waste within the European Union. The search for new materials that are more sustainable and respectful of the environment has become a challenge for countries with a high degree of industrialization. In this work, a study of the most relevant properties of masonry mortars made with recycled aggregates and reinforced with synthetic fibers was carried out. Three types of aggregates were used—natural, concrete recycling and ceramic recycling—and two types of reinforcing fibers: polypropylene and polyolefin. In this way, various tests of physical-mechanical characterization and a statistical analysis of the results were carried out. It has been shown that the mortars made from aggregate recycled concrete and reinforced with polypropylene fiber are the ones with the best properties for application in the construction sector, although without improving the properties of traditional mortars made from natural aggregate and without fibers.

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Section: Physical Properties and Other Testssupporting

confidence: 88%

Influence of Recycled Aggregates on the Mechanical Properties of Synthetic Fibers-Reinforced Masonry Mortars

et al. 2021

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“…Capacitive sensors that base their operation on the action of an electric field have been used successfully in industry to measure physical parameters. Some authors have used this type of device to measure humidity in construction elements such as wood or cement mortars [23]. This type of sensor has the advantage of being easy to use and economically viable.…”

Section: Capacitive Sensormentioning

confidence: 99%

“…(1) resistive ones that base their operation on the fact that, in contact to water, material increases its electrical conductivity [22] (2) the capacities that obtain their response as a function of the variation in the dielectric properties of the material [23].…”

Section: Introductionmentioning

confidence: 99%

Low-Cost Sensors for Determining the Variation in Interior Moisture Content in Gypsum Composite Materials

et al. 2020

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Non-destructive testing can be used to determine some of the most relevant physical properties of building materials. In this work, two low-cost measuring devices were developed capable of determining the variation in real-time of the percentage of humidity that is produced in the construction of gypsum and plaster during the hardening process. For this, an Arduino resistive sensor and a capacitive sensor of our design were used. The results show how it is possible to determine the variations in mixing water content during the seven days of curing established by the UNE-EN 13279-2 standard as well relate to the mechanical resistance of the test specimens with the same percentage of humidity. Additionally, the study was completed with the determination of the formation of the dihydrate compound linked to this setting process in the test specimens by conducting X-ray diffraction and thermogravimetric analysis tests at different ages of the samples.

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“…These characteristics of recycled concrete aggregates have a significant impact on the final properties of masonry mortars made with these materials [15]. In this sense, it can be stated that mortars made with this type of recycled aggregates have, in comparison with traditional mortars made with natural aggregate, a higher coefficient of capillary water absorption [16], higher shrinkage during setting [17], lower mechanical strength [18,19], higher porosity [20] and lower durability [21].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study with Cement Mortars Made with Recycled Concrete Aggregate and Reinforced with Aramid Fibers

2021

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The reuse of construction and demolition waste is a necessary way to achieve greater sustainability in building, introducing the criteria of the so-called circular economy in the design of the production process of new construction materials. This research focuses on analyzing the properties of mortars made with recycled aggregates from concrete waste and reinforced with aramid fibers. For this purpose, an experimental campaign was carried out, including chemical, physical, mechanical and durability tests, performing a statistical analysis to discuss the different properties analyzed. The results show how the incorporation of aramid fibers in the matrix of cement mortars made with recycled concrete aggregate improves their technical performance and mechanical resistance, thus increasing their application possibilities and achieving similar results in some properties to those obtained with traditional mortars made with natural aggregate.

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New System of Shrinkage Measurement through Cement Mortars Drying

Cited by 20 publications

References 21 publications

Influence of Recycled Aggregates on the Mechanical Properties of Synthetic Fibers-Reinforced Masonry Mortars

Influence of Recycled Aggregates on the Mechanical Properties of Synthetic Fibers-Reinforced Masonry Mortars

Low-Cost Sensors for Determining the Variation in Interior Moisture Content in Gypsum Composite Materials

Experimental Study with Cement Mortars Made with Recycled Concrete Aggregate and Reinforced with Aramid Fibers

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