Results 21 to 30 of about 16,935 (311)

Research on Carbonation Characteristics and Frost Resistance of Iron Tailings Powder Concrete under Low-Cement Clinker System

open access: yesAdvances in Materials Science and Engineering, 2020
The accelerated carbonation, natural carbonation, fast freeze-thaw test, and pore structure analysis of C30 and C50 concrete with different proportions of iron tailings powder and slag powder were tested, respectively.
Ruidong Wu   +4 more
doaj   +1 more source

Molecular sputter depth profiling using carbon cluster beams [PDF]

open access: yesAnalytical and Bioanalytical Chemistry, 2009
Sputter depth profiling of organic films while maintaining the molecular integrity of the sample has long been deemed impossible because of the accumulation of ion bombardment-induced chemical damage. Only recently, it was found that this problem can be greatly reduced if cluster ion beams are used for sputter erosion.
Wucher, Andreas, Winograd, Nicholas
openaire   +2 more sources

Preliminary study of the effect of carbonation curing on geopolymers

open access: yesRevista IBRACON de Estruturas e Materiais, 2023
Carbonation curing differs from weathering carbonation since it is performed intentionally at the early ages of cement hydration. This cure involves applying different levels of CO2 (5% to 99%) to concrete for a short period of time, usually followed by ...
Neusa Aparecida Munhak Beltrame   +3 more
doaj   +1 more source

Mineral carbonation of ceramic brick at low pressure and room temperature. A simulation study for a superficial CO2 store using a common clay as sealing material [PDF]

open access: yes, 2018
This research explores the possibilities of CO2 sequestration on ceramic bricks in a short time and at surface conditions. The experiment was carried out in a specially designed reaction chamber, filled with brick wastes and sealed with common clays. The
Aparicio Fernández, Patricia   +2 more
core   +1 more source

A practical method for preparing Ca(OH)2 nanodispersions for the consolidation of archaeological calcareous stones [PDF]

open access: yes, 2018
Exposure to atmospheric conditions results in considerable deterioration of calcareous building stones, lime mortars and plasters in archaeological monuments, requiring several conservation treatments.
Caner, Evin, Caner-Saltık, E.N.
core   +1 more source

Frictional Instabilities and Carbonation of Basalts Triggered by Injection of Pressurized H2O- and CO2- Rich Fluids [PDF]

open access: yes, 2018
The safe application of geological carbon storage depends also on the seismic hazard associated with fluid injection. In this regard, we performed friction experiments using a rotary shear apparatus on precut basalts with variable degree of hydrothermal ...
Alfredsson   +54 more
core   +4 more sources

In situ studies of materials for high temperature CO2 capture and storage. [PDF]

open access: yes, 2016
Carbon capture and storage (CCS) offers a possible solution to curb the CO2 emissions from stationary sources in the coming decades, considering the delays in shifting energy generation to carbon neutral sources such as wind, solar and biomass.
Allan, PK   +14 more
core   +4 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

Effect of Freeze–Thaw Cycles on Carbonation Behavior of Three Generations of Repeatedly Recycled Aggregate Concrete

open access: yesApplied Sciences, 2021
Multiple recycling of waste concrete has attracted widespread attention. This study presented the carbonation behavior of repeatedly recycled aggregate concrete (RRAC) used in a micro-frozen region.
Hui Liu   +6 more
doaj   +1 more source

Prediction of the lifespan of cement at a specific depth based on the coupling of geomechanical and geochemical processes for CO2 storage [PDF]

open access: yes, 2019
The injection of carbon dioxide (CO2) captured from combustion-based processes into underground formations is one of a number of plausible methods to reduce its release into the atmosphere and consequential greenhouse gas warming.
Bagheri, Mohammadreza   +2 more
core   +1 more source

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