Plasterboard waste must be kept dry at all times and free from contamination, which helps us to produce a top quality Gypsum powder.

Recycled Gypsum Powder


cement industry

Cement Industry.jpg

Gypsum powder is processed at the MacNabb facility in line with the PAS109:2008 Wrap protocol. MacNabb Waste supplies the cement industry with recycled gypsum powder used in the manufacture of cement. The recycled powder offers the cement industry the opportunity to minimise the environmental impact of manufacture, by substituting virgin gypsum material with recycled material. The correct collection, handling and processing methods for waste plasterboard are vital to delivery of a high quality powder product. Gypsum is a mineral and is hydrated calcium sulphate in chemical form. Gypsum plays a very important role in controlling the rate of hardening of the cement. During the cement manufacturing process, upon the cooling of clinker, a small amount of gypsum is introduced during the final grinding process.Gypsum is added to control the “setting of cement”. If not added, the cement will set immediately after mixing of water leaving no time for concrete placing.


Agricultural industry

agri industry.jpg

Gypsum powder is a valuable resource to the agricultural industry, as it enhances soil structure and balance, leading to improved yields. Gypsum is one of the earliest forms of fertiliser used worldwide. Although gypsum has been applied to agricultural soils for more than 250 years, it has received renewed attention in recent years. This resurgence is due in large part to ongoing research and practical insights from leading experts that highlight the many benefits of gypsum.

What are the benefits?

  • Improves soil structure – allowing for root growth, air and water movement
  • Reclaims saline soils – calcium in the gypsum replaces the sodium in clay
  • Improves seed emergence – prevents soil crusting
  • Improves water penetration – when added to low solute irrigation water
  • Improves compacted soil – when combined with tillage
  • Prevents erosion – improves infiltration and hydraulic conductivity
  • Prevents water logging – improves drainage
  • Reduces nitrogen loss
  • Improves soil acidity – reduces surface crusting
  • Enhances water-use efficiency – 25 to 100% more water is available
  • Improves nutrient absorption
  • Prevents some diseases – potato scab can be controlled
  • Increased levels of sulphur – sulphate improves plant condition and growth rates
  • Reduces tillage – improved soil aggregation and lower bulk density of soil
  • Improves harvesting – clay is kept from the roots of vegetables.
  • Improves crop yields – the above factors help improve yields dramatically

MacNabb Waste is happy to discuss and advise on the use of gypsum powder in this way, in order to ensure that the material is being used and handled in the correct manner. Click here to email us now.