Design of Rapid Hardening Quaternary Zeolite-Containing Portland-Composite Cements

Abstract

The strength development of a quaternary Portland cement composite system containing blast-furnace slag, zeolitic tuff and limestone powder is presented. The composition and particle size distribution of the constituents are optimized by the incremental coefficient of the surface activity of the zeolite-containing Portland composite cements. Zeolitic tuff and limestone powder of high specific surface area lead to the increase of the surface activity of the entire system and a corresponding improvement in the performance of the cement.

Development of solutions concerning regulation of proper deformations in alkali-activated cements

“…Improvement of concrete performance attributes is possible through joint use of several mineral admixtures due to optimization of granulometric composition of cement [3]. The principle of raising performance attributes by the use of multi-component cement systems can be applied to various materials, that is decorative mortars (plasters for restoration and finishing works, etc.)…”

Performance of Low Carbon Modified Composite Gypsum Binders with Increased Resistance

“…The maximum on the differential curve of particles distribution of zeolite and cement MC 22.5X corresponds to 3.95 and 3.59 μm, respectively. To determine the active surface of the mineral components phases, the coefficient of incremental surface area (K isa ) was calculated according to the methodology [17]. As can be seen from Fig.…”

Development of a technology for utilizing the electroplating wastes by applying a ferritization method to the alkaline­activated materials

“…Such a composition of new structures makes it possible to reliably fix the elements of heavy metals in the structure of a material. The process of forming hydrated phases depends on the ratio of SiO 2 /Al 2 O 3 , which affects the durability [16] and formation of zeolite-like products, which are the most reliable structures to retain heavy metals at the chemical level [24].…”