Viability of Gypsum Composites with Addition of Glass Waste for Applications in Construction

Sáez, Paola Villoría; Merino, Mercedes del Río; Sánchez, Evangelina Atanes; Astorqui, Jaime Santa Cruz; Porras-Amores, César

doi:10.1061/(asce)mt.1943-5533.0002604

Cited by 14 publications

(3 citation statements)

References 26 publications

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“…The results obtained from the Shore D tests are shown in Table 3. The average value of the surface hardness (82.16) was reported, which is comparable to building plasters and gypsum composites [34,35]. The flexural and compression tests provided a maximum resistance value of 2.85 ± 0.73 MPa and 5.34 ± 0.66 MPa, respectively.…”

Section: Characterization Of Geopolymeric Samplesmentioning

confidence: 52%

Crushed Bricks: Demolition Waste as a Sustainable Raw Material for Geopolymers

et al. 2021

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Demolition activity plays an important role in the total energy consumption of the construction industry in the European Union. The indiscriminate use of non-renewable raw materials, energy consumption, and unsustainable design has led to a redefinition of the criteria to ensure environmental protection. This article introduces an experimental plan that determines the viability of a new type of construction material, obtained from crushed brick waste, to be introduced into the construction market. The potential of crushed brick waste as a raw material in the production of building precast products, obtained by curing a geopolymeric blend at 60 °C for 3 days, has been exploited. Geopolymers represent an important alternative in reducing emissions and energy consumption, whilst, at the same time, achieving a considerable mechanical performance. The results obtained from this study show that the geopolymers produced from crushed brick were characterized by good properties in terms of open porosity, water absorption, mechanical strength, and surface resistance values when compared to building materials produced using traditional technologies.

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Section: Characterization Of Geopolymeric Samplesmentioning

confidence: 52%

Crushed Bricks: Demolition Waste as a Sustainable Raw Material for Geopolymers

et al. 2021

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“…The maximum replacement ratio of clay by Waelz slag in the production of ceramic bricks was found to be 10%. Further replacement ratio can compromise the technical properties of the final product -Recycled or recovered content [149] To study the technical feasibility of incorporating glass waste in gypsum composites…”

Section: Experimental Studymentioning

confidence: 99%

Selection Criteria for Building Materials and Components in Line with the Circular Economy Principles in the Built Environment—A Review of Current Trends

2021

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A growing concern is given to the environmental impacts caused by the construction industry. Waste generation, resource consumption, and greenhouse gas emissions are the main drawbacks of the rapid urbanization that the world is witnessing. As a response to these pressing issues, policymakers and academia are exploring the concept of Circular Economy (CE) to manage resources better and achieve resource efficiency while eliminating waste. One of the strategies to implement CE in the built environment is to select the appropriate building materials and components from the early stages to carry out the concept’s principles along the value chain and create a closed-loop system. Therefore, this study aims at identifying selection criteria for building elements according to CE principles through a review of the latest research. Results have shown that little has been concretely achieved in terms of a paradigm shift to CE since the main focus of the literature is still the use of recycled products and the recyclability of building materials and components at their end-of-life. Although the present study is solely focused on the technical aspect of building materials and components, it outlines current adopted criteria to bring about a circular built environment and highlights the need for a more innovative approach to attain higher circularity levels.

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“…Further analysis from the mechanical point of view shows that acicular gypsum crystals are prone to dislocation and deformation, especially when gypsum is hygroscopic, there will be water The mean sagging deflection of desulfurization gypsum board in the + Na and -Cl ion addition groups were 0.942 mm and 0.940 mm respectively. This is because a large number of + Na and -Cl ions will form sodium sulfate crystals and calcium chloride crystals respectively, which makes the surface of desulfurization gypsum board prone to frost return, increases the water absorption of the board, and then improves the sag deflection (Guan and Zhang 2020, An et al 2019, Saez et al 2019).…”

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confidence: 99%

Effect of different soluble salt ions on deformation of desulfurization gypsum in high humidity environment: a statistically designed experimental analysis method

ZHOU

Liu²,

Dai

et al. 2023

Mater. Res. Express

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In response to the green energy-saving goal of carbon neutralization and carbon peak, the research and development of green building materials have become a key research direction. Desulfurization gypsum is widely used in building materials because of its good energy saving, but it cannot be used in high humidity areas because of its highly soluble salt. Based on this reason, this paper uses statistically designed experiments (SDE) to design the experiments on the influence of four common soluble salt ions 〖Na〗^+ 、〖Mg〗^(2+) 、〖Cl〗^- and K^+ on the sagging deformation of desulfurization gypsum, and studies the significance of their influence by SDE experimental analysis method. The results show that: (1) in the environment of a single salt solution, K^+ ion, 〖Mg〗^(2+) ion, 〖Na〗^+ ion, and 〖Cl〗^- ion will cause sagging deformation of desulfurization gypsum, and their values are 0.432mm, 1.933mm, 0.942mm, and 0.940mm respectively. It can be seen that the effect of the 〖Mg〗^(2+) ion is the most significant. (2) In the environment of composite salt solution, K^+ ions will inhibit the sagging deformation of desulfurization gypsum. Specifically, in the compound salt solution environment of K^++〖Mg〗^(2+) and K^++〖Na〗^+, the deformation values are 0.605mm and 0.596mm respectively.

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Viability of Gypsum Composites with Addition of Glass Waste for Applications in Construction

Cited by 14 publications

References 26 publications

Crushed Bricks: Demolition Waste as a Sustainable Raw Material for Geopolymers

Crushed Bricks: Demolition Waste as a Sustainable Raw Material for Geopolymers

Selection Criteria for Building Materials and Components in Line with the Circular Economy Principles in the Built Environment—A Review of Current Trends

Effect of different soluble salt ions on deformation of desulfurization gypsum in high humidity environment: a statistically designed experimental analysis method

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