Despite having a high early mechanical strength and using sulfoaluminate cement as the primary cementitious material, self-compacting repair mortar (SCRM) suffers from rapid hydration rates leading to construction time constraints. This study examined how several forms of calcium sulfate, including hemihydrate gypsum, anhydrite, dihydrate affected SCRM’s workability, process, microstructure. Th...

With the rapid development of economic, gypsum is widely used in casting and other industry areas. In this paper, the result is obtained that the performance of plaster mold is better when gypsum-water ratio is 0.5. If the composition of gypsum slurry mixture ( -hemihydrate, mullite powder, zirconium powder, reinforcing fibers) is mullite powder: zircon flour: enhancing fiber = 1:0.25:0.2:0.02-...

Gypsum-based interior coatings are used due to their excellent fire resistance and thermal acoustic properties. In recent decades, the development of these calcium sulfate-based has been linked with use new additives that allow setting times water content mix be controlled offer possibility adding different aggregates mortar, which further improve its this article, significant results presented...

Gypsum soils are among the most restrictive and widespread substrates for plant life. Plants living on gypsum are classified as gypsophiles (exclusive to gypsum) and gypsovags (non-exclusive to gypsum). The former have been separated into wide and narrow gypsophiles, each with a putative different ecological strategy. Mechanisms displayed by gypsum plants to compete and survive on gypsum are st...

The 15th century cross-vaults of the medieval Modena Cathedral (UNESCO site) consist intricate patches different masonry portions bound by three types lime mortars and at least two gypsum mortars. Such anomalous structure suggests multiple repair works over time after damaging earthquakes.The absolute dating (14C) bricks (TL) integrated with pollen record allowed to clarify construction restora...