Effect of Agriculture and Construction Wastes on the Properties of Magnesium Oxychloride Cement Mortar with Tourmaline Powder

Chen, Xue-Fei; Kou, Shi Cong; Xing, Feng

doi:10.3390/ma12010115

Cited by 24 publications

(11 citation statements)

References 30 publications

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“…All of the efforts to counteract the disadvantage of poor water resistance imply the use of various additives in the mixture, and despite the effectiveness of additives in improving the properties of MOC, the cost of the end-materials is unfavorably increased [ 55 ]. Thus, in order to develop a more sustainable and cost-effective building material, MOC cement must be mixed with other low-cost materials, in general waste from different sources such as waste-expanded polypropylene-based aggregate [ 56 ], waste gypsum [ 57 ], agricultural and construction waste [ 55 ], granite waste [ 46 ] or various wood waste [ 58 ] such as waste from the construction and demolition [ 59 ], especially waste from concrete timber formwork [ 7 ].…”

Section: Background Of Magnesium Oxychloride Cement (Moc)mentioning

confidence: 99%

Perspective of Using Magnesium Oxychloride Cement (MOC) and Wood as a Composite Building Material: A Bibliometric Literature Review

Maier

Manea

2022

Materials

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The building industry is known as one of the biggest consumers of natural resources and an important producer of CO2 emissions. The biggest greenhouse gas emissions are recorded in the production of cement and metallic building materials. The purpose of this paper is to investigate if magnesium oxychloride cement (MOC) can be used as an alternative to the ordinary Portland cement in the mixture of wood–cement composite building materials in order to decrease the negative impact of the construction industry on the environment. The research methodology includes bibliometric literature research, a scientometric analysis and an in-depth discussion. The data used for the research were obtained by interrogating the ISI Web of Science database, selected using the guidelines of the PRISMA method and processed with the help of VOSviewer and Bibliometrix software. The research results indicate an increasing interest in this topic; for example, in the last five years, three times more articles were published on the subject of MOC cement than the number of all articles collected in previous years. Compared to ordinary Portland cement, MOC cement presents a good match with wood, so MOC can be a substitute for ordinary cement to manufacture wood-cement particleboard, especially for the wood species that have high incompatibility with ordinary cement.

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Section: Background Of Magnesium Oxychloride Cement (Moc)mentioning

confidence: 99%

Perspective of Using Magnesium Oxychloride Cement (MOC) and Wood as a Composite Building Material: A Bibliometric Literature Review

Maier

Manea

2022

Materials

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“…Various fillers/modifiers have been utilized to improve MOC composites. In a recent study, recycled clay brick powder (CBP) was investigated as an alternative low-cost waste pozzolanic material for MOC mortar reinforced with agricultural residues, namely corn stalk and wood sawdust (Chen et al 2019). Due to the higher water absorption capacity of the CBP, the fluidity and workability of freshly blended agro-waste MOC mortars consistently decreased with increasing CBP content up to a maximum CBP content of 15%.…”

Section: Effect Of Modifiers/fillers Mocmentioning

confidence: 99%

Non-conventional mineral binder-bonded lignocellulosic composite materials: A review

Emmanuel

Kuqo

Mai

2021

BioRes

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The construction industry suffers from unsustainability and contributes more than any other industrial sector to carbon emissions that lead to global warming. Increasing economic and environmental concerns related to conventional energy- and CO2-intensive building materials have propelled the rapid and sustained expansion of research in the area of plant-based inorganic mineral binder-bonded materials for the construction industry. The resulting composites can be qualified as eco-responsible, sustainable, and efficient multifunctional building materials. So far, most of these research efforts have not received as much attention as materials based on ordinary Portland cement (OPC). To address this gap, this review focuses on mineral binder-based lignocellulosic composites made from non-conventional inorganic mineral binders/ cements with low embodied energy and low carbon footprint, namely hydrated lime-based binders, magnesium-based cement, alkali-activated cement, and geopolymers, as sustainable alternatives to OPC-bonded lignocellulosic composites (state-of-the-art). The emphasis here is on the application potentials, the influence of production parameters on the material properties/ performance, and recent advancement in this field. Finally, a prediction is provided of future trends for these non-conventional mineral binder-bonded lignocellulosic composites.

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“…For example, it was reported that marine clay can be utilized with high added value as a supplementary binding material in manufacturing sustainable concrete products [22,23]. Recycled fine aggregates and recycled glass powder can be co-used in concrete production, which reduces the total carbon dioxide emission by about 19% [24,25]. Incinerated sewage sludge ash sourced from the incineration of sewage sludge could be used with lime to produce building materials that are eco-friendly [26].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation and Modeling of the Sulfur Dioxide Abatement of Photocatalytic Mortar Containing Construction Wastes Pre-Treated by Nano TiO2

Chen

Jiao

2022

Catalysts

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A photocatalytic mortar containing recycled clay brick powder (RCBP), recycled fine aggregate (RFA), recycled glass (RG), and nanoscale titanium dioxide (NT) was fabricated to degrade low-concentration sulfur dioxide. Instead of intermixing or dip-coating, NT was firstly loaded onto the surface of carriers (RFA and RG) using a soaking method to prepare composite photocatalysts (CPs) denoted as NT@RFA and NT@RG. The prepared CPs can both take full advantage of the intrinsic characteristics of construction wastes, namely, the high porosity and alkalinity of RFA and the light-transmitting property of RG, and can significantly reduce the cost of using NT. RG in high dosage potentially triggers alkali–silica reaction (ASR) in cement-based materials, which affects the durability of the prepared mortar. RCBP, another typical construction waste sourced from crushed clay bricks, was proven to be a pozzolan similar to grade II fly ash. The combined use of RCBP and RG in photocatalytic mortar is expected to simultaneously improve durable performance and further raise the upper content limit of construction wastes. Results exhibit that 70% cement plus 30% RCBP as cementitious material can sufficiently control ASR to an acceptable level. The filling effect and the pozzolanic reaction caused by RCBP result in a decline in porosity and lessened alkalinity, which decreases sulfur dioxide removal. The paper uses both response surface methodology (RSM) and an artificial neural network (ANN) to model photocatalytic efficiency with various initial concentrations and flow rates and finds the ANN to have a better fitting and prediction performance.

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Effect of Agriculture and Construction Wastes on the Properties of Magnesium Oxychloride Cement Mortar with Tourmaline Powder

Cited by 24 publications

References 30 publications

Perspective of Using Magnesium Oxychloride Cement (MOC) and Wood as a Composite Building Material: A Bibliometric Literature Review

Perspective of Using Magnesium Oxychloride Cement (MOC) and Wood as a Composite Building Material: A Bibliometric Literature Review

Non-conventional mineral binder-bonded lignocellulosic composite materials: A review

Experimental Investigation and Modeling of the Sulfur Dioxide Abatement of Photocatalytic Mortar Containing Construction Wastes Pre-Treated by Nano TiO2

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