Characterization of a New Lightened Gypsum-Based Material Reinforced with Fibers

Álvarez, Manuel; Morón, Carlos; Atanes-Sánchez, Evangelina

doi:10.3390/ma14051203

Cited by 22 publications

(16 citation statements)

References 45 publications

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“…The lowest hardness value given in the TS EN 13279-1 [30] standard for plaster is 10 (shore hardness value). It is seen that all gypsum composite samples provide the desired hardness value and such a decrease is also observed in some studies [50,51].…”

Section: Mechanical Characterization Of Compositessupporting

confidence: 71%

Thermal and mechanical evaluation of natural fibers reinforced gypsum plaster composite

et al. 2023

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Many problems such as the increase in the world population, global drought, and greenhouse gases have caused materials used in industries to be reconsidered. This is how the concept of green composite material emerged. Using natural fibers to obtain such materials is important in terms of sustainability. This study is aimed to use hemp fiber and banana fiber as natural fiber additives in the gypsum composite to produce green bio-composite. Natural fibers are chemically modified with 5% NaOH solution. In this way, a good fiber/matrix interface interaction is provided. The composite hardness test result of 5 wt% HB fiber added sample is obtained as 50.4. Compared to the control plaster sample test result, which is 53.6, a slight decrease can be seen. However, it is observed that the fibers held the structure together and sopped the crack propagation. The increase in the porous structure with fiber addition caused a decrease in the thermal conductivity of the composite. Comparing thermal conductivity result of 5 wt% HB fiber reinforced gypsum composite (0.131 W⸳mK-1) with respect to pure gypsum result (0.237 W⸳mK-1), it gave a promising result as an insulation material.

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Section: Mechanical Characterization Of Compositessupporting

confidence: 71%

Thermal and mechanical evaluation of natural fibers reinforced gypsum plaster composite

et al. 2023

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“…The different proportions of each raw material used in each dosage are shown in Table 6. It should be noted that for a correct kneading, the fibers were separated manually and poured continuously during the kneading process in order to avoid cross-linking between them [54].…”

Section: Experimental Programme 221 Dosages Usedmentioning

confidence: 99%

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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“…Used in conjunction with polypropylene fibre reinforcement (0–1.2% volume fraction), Zhu et al developed a new composite with a faster curing process and improved both the flexural strength and toughness of the material by about 20% [ 21 ]. In other research, polymeric composites have been used to modify the matrix of plaster composites, favouring the occurrence of chemical reactions during the setting process that allow the introduction of occluded air into the material, thus reducing the density of the final composite [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Characterization and under Water Action Behaviour of a New Plaster-Based Lightened Composites for Precast

2023

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Plaster is a construction material widely used for the production of prefabricated parts in building construction due to its high capacity for hygrothermal regulation, its good mechanical performance, and its fireproof nature, among other factors. Its historical use has been linked to ornamental elements, although more recent research is oriented towards the industrialisation of plaster composites and the design of prefabricated parts for false ceilings and interior partitions. In this work, the behaviour against water of four new plaster-based composite materials is studied, using additions of two types of super absorbent polymers (sodium polyacrylate and potassium polyacrylate) and a lightening material (vermiculite) in their manufacturing process. In addition, the transmission of water vapour through the samples was studied together with the water absorption capacity of the samples in order to check the suitability of the use of plaster-based materials exposed to these environments. The results of this study show that composites with the addition of super absorbent polymers as well as vermiculite significantly improve their water performance compared to traditional materials up to 7.3% water absorption with a minimal (13%) reduction in mechanical strength compared to current materials with similar additions. In this sense, a plaster material is obtained with wide possibilities of application in the construction sector that favours the development of sustainable and quality buildings, in line with Goal 9 for Sustainable Development included in the 2030 Agenda.

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Characterization of a New Lightened Gypsum-Based Material Reinforced with Fibers

Cited by 22 publications

References 45 publications

Thermal and mechanical evaluation of natural fibers reinforced gypsum plaster composite

Thermal and mechanical evaluation of natural fibers reinforced gypsum plaster composite

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

Characterization and under Water Action Behaviour of a New Plaster-Based Lightened Composites for Precast

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