Results 21 to 30 of about 14,253 (226)
The cement production process contributes significantly to CO2 gas emissions and environ- mental pollution. To reduce this adverse effect, the substitution of waste marble powder as a cement additive was investigated.
Rumeysa Gürgöze +2 more
doaj +1 more source
Another look at the deterioration of calcium aluminate cement concrete
Potential degradation of concrete structures made of calcium aluminate cement (CAC) is well known and is caused by transformation (conversion) of the thermodynamically metastable into stable calcium aluminate hydrate phases.
Jaromir Jambor, Jan Skalny
doaj +1 more source
Changes in the rate of ion penetration of alternative cementitious materials with time
A major concern with concrete durability is the penetration of ions that cause deterioration. One concern about alternative cementitious materials (ACMs) is the lack of information regarding their long-term resistance to ion penetration.
Amir Behravan +3 more
doaj +1 more source
From Molten Calcium Aluminates through Phase Transitions to Cement Phases
Crystalline calcium aluminates are a critical setting agent in cement. To date, few have explored the microscopic and dynamic mechanism of the transitions from molten aluminate liquids, through the supercooled state to glassy and crystalline phases ...
Hao Liu +12 more
doaj +1 more source
Estimation of corrosion resistance of curing mixtures based on coal-bearing rocks from Western Donbass [PDF]
Purpose. Substantiation of possible use of coal-bearing rocks as a replacement for a part of the filler in the preparation of shotcrete for lining of mine workings in the conditions of mineralized mine water. Methods.
Harkusha, V, Kovalenko, V
core +2 more sources
Supercritical carbonation of calcium aluminate cement
The microstructural changes occurring during supercritical carbonation (scCO2) of calcium aluminate cement (CAC) and changes to its strength have been investigated. Cylindrical specimens of CAC cured at different temperatures were prepared and then subjected to scCO2.
Fernández Carrasco, Lucía +2 more
openaire +3 more sources
The purpose of this study was to evaluate the physical properties and hydration evolution of calcium aluminate cement (CAC) compositions containing an advanced dispersant. The compressive strength, dimensional change, apparent porosity and quantitative X
A. P. Luz, V. C. Pandolfelli
doaj +1 more source
ANALYSIS OF CALCIUM ALUMINATE CEMENT PASTES [PDF]
In this research different formulations of calcium aluminate cement pastes (CACP) with 71wt% Al2O3 (CACP 71wt%), (wt% -percentage by weight) were made, at 0.4 water to cement ratios (W/C), with additions of 0wt%, 10wt% and 20wt% of silica (CACP 71-0wt%, 10wt% and 20wt%, respectively).
John Zapata +2 more
openaire +1 more source
Natural fiber-reinforced light-weight cement blocks prepared from waste for sustainable development
Low density of the light-weight cement blocks offers an advantage in terms of dead load reduction, which is advantageous in structural design-reduction of size and numbers of load-carrying structural components is possible.
Latda Chandeng +5 more
doaj +1 more source
Biocompatibility of mineral trioxide aggregate and three new endodontic cements: An animal study
Background: Introducing new endodontic cements should await comprehensive investigations and new formulations have to be tested in vivo before applying in human beings.
Mohammad-Ghasem Aminozarbian +3 more
doaj +1 more source

