Extremely rapid setting time of building gypsum severely limits its further processing and
application. Gypsum retardation is an indispensable technology that provides a long period …

The use of industrial waste and/or by-products as alternative sources of raw materials in
building materials has become standard practice. The result, more sustainable construction …

The purpose of this work was to investigate the feasibility of using black tea powder
produced through green technology (plant-source material and biotechnology) as …

The role of citric acid, a retarder additive used to prolong the workability and setting time of
gypsum binders, was studied at concentrations of 0, 125, 250, 500, 1000, 1500 and …

The hydration of hemihydrate phosphogypsum in the alkaline environment was investigated
aiming to recycle phosphogypsum-a promising gypsum resource in gypsum-based …

Phosphogypsum (PG) which is a waste byproduct of fertilizer production is the promising
source of the gypsum industry. In order to explore the application of hemihydrate PG (HPG) …

Although the dissolution/precipitation mechanism for hemihydrate hydration is widely
recognized, this study gives more detailed information for the hydration of hemihydrate by in …

Protein retarders can not only prolong the setting time of gypsum in application, but also
lower the reduction in strength. The chemical activity of proteins is determined by the basic …

Chrome leather scraps have always been difficult to disposal in leather making, the effective
use of it to produce valuable products can help to achieve sustainability in leather industry …

Gypsum plaster recycling shortens the setting times, changing the workability and becomes
difficult to work with it. The works found in literature studied the α-hemi-hydrate. Few works …