Results 31 to 40 of about 4,892 (215)
Phosphate-modified calcium aluminate cement for radioactive waste encapsulation [PDF]
, 2013 The present study is part of a wider investigation to develop an alternative cementing system for the encapsulation of problematic low and intermediate level radioactive waste. It has been suggested that alternative cementing systems, with lower internal
Utton, C. +3 more
core +1 more source
Journal of Sustainable Construction Materials and Technologies, 2023 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
Materiales de Construccion, 1996 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
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From Molten Calcium Aluminates through Phase Transitions to Cement Phases
Advanced Science, 2020 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
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Changes in the rate of ion penetration of alternative cementitious materials with time
Materials & Design, 2021 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
ANALYSIS OF CALCIUM ALUMINATE CEMENT PASTES [PDF]
, 2020 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
Cerâmica, 2014 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
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Natural fiber-reinforced light-weight cement blocks prepared from waste for sustainable development
Acta Polytechnica CTU Proceedings, 2022 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
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Hydration and dimensional stability of calcium aluminate cement based systems [PDF]
, 2014 Calcium aluminate cements (CAC) are often used in combination with calcium sulfate and Portland cement for special applications where rapid setting, rapid drying and shrinkage compensation are required.
Bizzozero, Julien
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Modeling of Corrosion Rate and Resistivity of Steel Reinforcement of Calcium Aluminate Cement Mortar
Advances in Civil Engineering, 2018 Calcium aluminate cement (CAC) is a binder whose hydrated compounds change over time from cubic phases to hexagonal phases, producing an increase of porosity in reinforced concretes.
Cristina Argiz +3 more
doaj +1 more source