Results 11 to 20 of about 805,927 (209)

Polymer-stabilized hydrated calcium aluminate cement suspensions as calcium aluminate cement accelerator

open access: yesCement
Accelerating calcium aluminate cement (CAC) hydration is usually achieved using lithium salts. However, it is desirable to have alternative high-performance accelerators for CAC-based mortars and concretes. Here, we study the effect of polymer-stabilized
Alper Dönmez   +2 more
doaj   +2 more sources

Strontium in Phosphate-Modified Calcium Aluminate Cement

open access: yesKey Engineering Materials, 2019
Cements have been used to encapsulate low and intermediate level radioactive wastes. Here, phosphate-modified calcium aluminate (CAP) cement is explored as an encapsulant for strontium radioanuclide-containing wastes. Electron microscopy indicates strontium chloride, used in place of strontium radionuclides, increases porosity in CAP possibly due to ...
Kamaluddin, S.   +2 more
openaire   +3 more sources

Carbonation of calcium aluminate cement pastes

open access: yesMateriales de Construccion, 2001
This work discusses the results from accelerated tests intended to investigate the ways the different curing methods affect the carbonation of calcium aluminate cements pastes (CAC).
L. Fernández-Carrasco   +3 more
doaj   +4 more sources

Calcium Aluminate Cement Hydration Model [PDF]

open access: yesKemija u Industriji, 2011
Calcium aluminate cement (AC) is a very versatile special cement used for specific applications. As the hydration of AC is highly temperature dependent, yielding structurally different hydration products that continuously alter material properties, a ...
Matusinović, T.   +2 more
doaj   +1 more source

Nanotechnology for calcium aluminate cement: thematic analysis

open access: yesReviews on Advanced Materials Science
Calcium aluminate cement (CAC) is a multifaceted material recognized for its rapid strength development and improved durability; nonetheless, it encounters issues such as thermodynamical phase conversion.
Prasittisopin Lapyote
doaj   +2 more sources

The nanostructure and degradation of C-S-H in Portland and blended cements [PDF]

open access: yes, 2007
The microstructure and composition of water and KOH activated hardened pastes of commercial neat white Portland cement (WPC) and blends with 30% fly ash (PFA) have been characterised using a multi-technique approach, With particular emphasis on the ...
Oliveira Morais de Sousa Girão, Ana Violeta
core   +6 more sources

Impact of calcium aluminate cement and calcium sulfate on gel C-A-S-H formation during the Portland cement hydration [PDF]

open access: yesMateriales de Construccion
This study examines how calcium aluminate cement (CAC) and calcium sulfate influence the hydration and gel structure of Portland cement (PC). A binary PC/CAC (85/15) mix was compared with ternary systems containing 3% and 5% calcium sulfate under two ...
D. Torrens-Martín   +1 more
doaj   +2 more sources

Genotoxicity and hemocompatibility of a novel calcium aluminate-based cement [PDF]

open access: yesEuropean Endodontic Journal, 2018
Objective: The aim of this in vitro study was to evaluate the genotoxicity and hemocompatibility of a novel calcium aluminate-based cement, EndoBinder (EB) ( Binderware, São Carlos, SP, Brazil) and compare it with Angelus White Mineral Trioxide Aggregate (MTA) (AWMTA) (Angelus, Soluções Odontológicas, Londrina, PR, Brazil).Methods: For evaluation of ...
Fernández, Rafael   +3 more
openaire   +2 more sources

Calcium carbonate-calcium phosphate mixed cement compositions for bone reconstruction [PDF]

open access: yes, 2006
The feasibility of making calcium carbonate-calcium phosphate (CaCO3-CaP) mixed cements, comprising at least 40 % (w/w) CaCO3 in the dry powder ingredients, has been demonstrated.
Bareille, Reine   +2 more
core   +1 more source

Designing corrosion resistant systems with alternative cementitious materials

open access: yesCement, 2022
Alternative cementitious materials (ACMs) may exhibit superior mechanical properties and durability to certain environments, and that also may be produced with relatively less environmental impact compared to traditional portland cement.
Prasanth Alapati   +4 more
doaj   +1 more source

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