Results 11 to 20 of about 57,794 (339)

Carbonation of concrete with construction and demolition waste based recycled aggregates and cement with recycled content [PDF]

open access: yes, 2020
Durability is a major concern in concrete (particularly recycled concrete) structures exposed to carbonation-induced corrosion, given the social, economic, environmental and safety implications involved.
De Belie, Nele   +4 more
core   +1 more source

New modification of the hestenes-stiefel with strong wolfe line search [PDF]

open access: yes, 2021
. The method of the nonlinear conjugate gradient is widely used in solving large-scale unconstrained optimization since been proven in solving optimization problems without using large memory storage.
Basri, Srimazzura   +2 more
core   +1 more source

The role of relative humidity and cement type on carbonation resistance of concrete

open access: yesAlexandria Engineering Journal, 2019
Carbonation of concrete is one of the key factors causing deterioration for reinforced concrete structures. Carbonation depth is typically used to estimate the concrete service life.
Mona Elsalamawy   +2 more
doaj   +1 more source

Reliability-based analysis of recycled aggregate concrete under carbonation [PDF]

open access: yes, 2018
Durability represents a crucial issue for evaluating safety and serviceability of reinforced concrete structures. Many studies have already focused on carbonation-induced corrosion of natural aggregate concrete (NAC) structures, leading to several ...
Faleschini, Flora   +2 more
core   +1 more source

Insights Into Nickel Slag Carbonation in a Stirred Bead Mill

open access: yesFrontiers in Chemical Engineering, 2020
This work is part of the ongoing development of the attrition-leaching carbonation process, a single-step aqueous carbonation technology that integrates a stirred bead mill.
Carine Julcour   +4 more
doaj   +1 more source

Carbon···Carbon Weak Interactions

open access: yesThe Journal of Physical Chemistry A, 2009
A theoretical study of the complexes formed by systems with electron-deficient and electron-excessive carbon atoms was carried out using DFT and ab initio methods up to the CCSD(T)/aug-cc-pVTZ computational level. Stable complexes with interaction energies between -6.0 and -22.8 kJ mol(-1) were obtained that correspond to weak C...C interactions.
Alkorta, Ibon   +5 more
openaire   +3 more sources

Accelerated and natural carbonation of concrete with high volumes of fly ash : chemical, mineralogical and microstructural effects [PDF]

open access: yes, 2019
Today, a rather poor carbonation resistance is being reported for high-volume fly ash (HVFA) binder systems. This conclusion is usually drawn from accelerated carbonation experiments conducted at CO2 levels that highly exceed the natural atmospheric CO2 ...
De Belie, Nele   +2 more
core   +1 more source

Experimental Investigation on Carbonation Behavior in Lime-Stabilized Expansive Soil

open access: yesAdvances in Civil Engineering, 2020
The carbonation behavior of lime-stabilized expansive soil is important for assessing the stabilization efficiency from the perspective of durability. In this study, the accelerated carbonation tests, measurement of pH value distribution, and the free ...
Long Xu   +5 more
doaj   +1 more source

Coupling of attrition and accelerated carbonation for CO2 sequestration in recycled concrete aggregates

open access: yesCleaner Engineering and Technology, 2021
An accelerated carbonation method was applied to improve the ability of recycled aggregates to store CO2 through the rolling carbonation process; moreover, recycled concrete aggregates’ physicochemical properties to produce secondary aggregates for civil
Glaydson S. Dos Reis   +5 more
doaj   +1 more source

A carbon–carbon hybrid – immobilizing carbon nanodots onto carbon nanotubes

open access: yesChemical Science, 2015
The thrust of this work is to integrate small and uniformly sized carbon nanodots (CNDs) with single-walled carbon nanotubes of different diameters as electron acceptors and electron donors, respectively, and to test their synergetic interactions in terms of optoelectronic devices.
Volker Strauss   +3 more
openaire   +5 more sources

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