آخرین محصولات
Gypsum as a Construction Material-A Review of …
The growing negative environmental impacts of cement industry and high cost associated with the manufacture and transport of Portland cements have made gypsum an effective alternative to the hazardous …
Sustainability | Free Full-Text | Quantifying …
The ongoing global climate change and the associated environmental degradation pose a threat to Europe and the rest of the world. Raw materials and energy are required to produce building …
Processing of Gypsum Construction and Demolition …
An environmental impact evaluation shows that the utilization of recycled gypsum brings advantages even compared to coal-fired power plants (FGD) gypsum …
Life Cycle Resources
Life Cycle Assessment tools — including those employed in analyzing life-cycle impacts of gypsum products — use environmental, costing and human health criteria to compare …
Environmental risk assessment of industrial byproduct gypsum …
In response to the basic policy of green and low-carbon circular development to solve resource, environmental and ecological problems, gypsum is considered to be a filling material for mine backfilling. To explore the potential risks of gypsum to the groundwater environment due to the backfilling of abandoned mines, a sequential …
Recycling Waste Gypsum Drywalls as Partial Cement …
In this paper, the impact of recycled gypsum content on the durability of concrete (hereafter called gypsum concrete) exposed to different environmental exposures is evaluated. A total of 153 concrete cylinders (100 × 200 mm) with different recycled gypsum contents (0%, 10%, and 20% of cement replacement) were …
Gypsum
Canada, Mexico and Spain are other significant producers of raw gypsum. In all, more than 90 countries produce gypsum. In most open pit gypsum operations, benches are drilled and blasted using ammonium nitrate as the explosive. Because gypsum is so soft, most drills can drill through it at a rate of roughly 23 ft per minute.
11.16 Gypsum Manufacturing
11.16 Gypsum Manufacturing 11.16.1 Process Description1-2 Gypsum is calcium sulfate dihydrate (CaSO4 2H2O), a white or gray naturally occurring ... As used here, an impact mill is a process unit used to dry, grind, and calcine gypsum simultaneously. q References 4-5,16. Emission factor units = kg/m2. Based on 13-mm board thickness and 1.2 m
Gypsum: A Natural Solution for Soil Improvement
Sustainability and Environmental Impact. Gypsum is an environmentally friendly soil amendment. As a natural mineral, it is mined and processed with minimal environmental impact. Its use in agriculture contributes to sustainable soil management by improving soil structure, reducing erosion, and helping reclaim saline and sodic soils.
A review of the research about gypsum mortars with …
Therefore, an evaluation of the environmental impacts of industrial-scale processing for the recycling of post-consumer gypsum waste was conducted. The evaluation was performed with an established ...
Production and resource utilization of flue gas desulfurized gypsum …
1. Introduction. Flue gas desulfurized gypsum mainly comes from thermal power plants, smelters, and large-enterprise boilers, and contains industrial by-products produced through a wet desulfurization combustion process, where SO 2 gas and lime slurry react under strong oxidation conditions. The main component of this gypsum is …
Partial Cement Replacement in Concrete with Gypsum …
Construction and demolition waste disposal, also, could cause environmental issues in landfills. Gypsum drywalls account for a considerable amount …
Gypsum | Definition, Uses, & Facts | Britannica
Gypsum occurs in extensive beds associated with other evaporite minerals (e.g., anhydrite and halite), particularly in Permian and Triassic sedimentary formations; it is deposited from ocean brine, followed by anhydrite and …
GtoG Life + Project: First step towards gypsum circular …
The European GtoG Project (Gypsum to Gypsum) is a perfect loop and the path to a circular economy: a European collaborative project between the recycling industry, the …
Processing of Gypsum Construction and Demolition …
An environmental impact evaluation shows that the utilization of recycled gypsum brings advantages even compared to coal-fired power plants (FGD) gypsum and also natural ... The obtained gypsum powder was used for further research as a secondary gypsum binder. For CDW gypsum powder, the particle size distribution was …
Effects of various gypsum on early-age hydration behavior …
Gypsum modification is an effective strategy to improve the water resistance of magnesium oxychloride cement paste (MOCP), but its early-ages performance evolution has not received much attention. The exothermic characteristics and hydration kinetic parameters of MOCP with different contents and types of gypsum are investigated. The …
Healthway | Plaster of Paris Gypsum Powder 25kg Bag
Health and Safety: Inhalation of gypsum powder dust should be avoided, as it can irritate the respiratory system. It's important to use appropriate protective gear when handling large quantities. Environmental Impact: Gypsum mining and production can have environmental impacts, so sustainable sourcing and disposal practices are important.
Investigating the Effect of Gypsum Powder on Chemical …
This paper investigates the effects of gypsum powder from the gypsum plant in Adigudem on chemical properties of soil as well as the yield of two major crops, wheat (Triticum aestivum) and barley ...
Evaluation of engineering properties and environmental effect …
The discard and landfill of by-product gypsum cause significant environmental problems. About 100–280 million tons of phosphogypsum and a large amount of waste plasterboard are produced every year in the world, but the utilization rate of phosphogypsum is about 10%. Most by-product gypsum is directly landfilled or …
Impact of Ferrochrome Ash and Gypsum Powder on …
flue gas desulphurization gypsum panel is much more than that of Chinese gypsum panel as well Chinese gypsum/fly ash panels. The manufacturing of fire resistant panels is a very promising utilization for both flue gas desulphurization gypsum and fly ash with added high values, no environmental implications and low economic costs.
Gypsum in Construction | Types, advantages, disadvantages, …
The construction industry generally uses gypsum in powder form. When it is heated in its natural solid form, it loses its water molecules and becomes a powder. This is known as plaster in the construction industry. ... Understanding the environmental impact of gypsum is important as we seek to promote sustainable building practices.
What is Gypsum? Definition, History, Uses
Gypsum's sustainability is increasingly vital in an environmentally conscious world. The mineral can be recycled, reducing waste in landfills. Sustainable mining practices also mitigate …
[PDF] Investigating the Effect of Gypsum Powder on …
This paper investigates the effects of gypsum powder from the gypsum plant in Adigudem on chemical properties of soil as well as the yield of two major crops, wheat (Triticum aestivum) and barley (Hordeum vulgare). Three mixes of 10kg of soil with 0%, 10%, 30%, and 50% proportion of gypsum powder were used for pot experiments …
A CIRCULAR ECONOMY FOR THE CONSTRUCTION …
Despite the fact that gypsum is recyclable, there is currently a large proportion of gypsum waste being landfilled and backfilled, while recycling systems in Europe are mostly operating in Benelux, on their origin: Production waste, meaning the waste resulting …
Gypsum | Properties, Formation, Uses and Deposits
1. Gypsum Deserts and Landscapes: White Sands Desert, New Mexico, USA: One of the most famous gypsum landscapes is the White Sands Desert in New Mexico. It is the world's largest gypsum dunefield and covers over 275 square miles (710 square kilometers). The white, sparkling dunes consist of pure gypsum sand.
Basic characteristics and comprehensive utilization of FGD gypsum
The potential for FGD gypsum to be reused and recycled is also discussed, as well as its environmental impact. FGD gypsum can be safely disposed of in landfills or used for backfilling, with ...
Gypsum Products and Properties as a Building …
Types of Gypsum Products and their Uses. Gypsum Plaster Boards -Plasterboard are panels used as partitions and for the lining of walls and the ceilings. Used for Plaster for Decoration - The combination of gypsum …
Reliability of Reusing Gypsum Flat Board Grinded …
This research work focuses on the recycling of gypsum, a key component of drywall panels commonly used in construction. It proposes this practice as a technically and economically viable strategy that also …
Recycled gypsum powder from waste drywalls combined …
Recycled gypsum can be used interchangeably with natural gypsum for almost all applications, including in the production of Portland cement (Chandara et al., 2009). A study by Suarez et al. (2016) uses life cycle assessment methodology to evaluate the environmental impacts of using natural and recycled gypsum in Portland cement …
Life cycle assessment of natural and recycled gypsum production in …
Later, they also analyzed the influence of gypsum waste on the environmental impacts of concrete preparation (Suarez et al., 2018). The life cycle analysis of the recycling gypsum plasterboard in the EU-27 context was also studied (Jimenez-Rivero et al., 2016). ... In addition, it is important to point out that recycled …
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