scholarly journals Durability and Mechanical Characteristics of Blast-Furnace Slag Based Activated Carbon-Capturing Concrete with Respect to Cement Content

2020 ◽  
Vol 10 (6) ◽  
pp. 2083
Author(s):  
Seungwon Kim ◽  
Cheolwoo Park
Keyword(s):  
Climate Change ◽  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Carbon Capture ◽  
Industrial Revolution ◽  
Global Climate ◽  
Co2 Concentration ◽  
Human Beings ◽  
Carbon Reduction ◽  
Furnace Slag

The recent abnormal temperature phenomena such as the rise of global mean temperature and sea level due to global climate change are clear threats that can no longer be overlooked to the human beings who have pursued indiscriminate development and rapid growth. Climate change has emerged as a serious risk that threatens the survival of the entire human race from the environmental and ecological aspects, despite international efforts for several decades. The CO2 concentration in the atmosphere has increased by approximately 39% since the industrial revolution. Even if carbon emissions are stopped right now, it is expected to take at least 50–200 years to return to the CO2 level before the industrial revolution. Therefore, we conducted an experimental study to develop a carbon-capturing concrete that has active as well as passive carbon reduction functions using blast-furnace slag, an industrial byproduct, instead of cement. For active carbon reduction, we used calcium hydroxide and sodium silicate as carbon capture activators, and conducted tests on mechanical properties and durability characteristics.

scholarly journals Carbon Dioxide Absorption by Blast-Furnace Slag Mortars in Function of the Curing Intensity

Energies ◽  
2019 ◽  
Vol 12 (12) ◽  
pp. 2346 ◽  
Author(s):  
Miguel Ángel Sanjuán ◽  
Esteban Estévez ◽  
Cristina Argiz
Keyword(s):  
Climate Change ◽  
Carbon Dioxide ◽  
Blast Furnace ◽  
Greenhouse Gas ◽  
Blast Furnace Slag ◽  
Ghg Emissions ◽  
Cement Clinker ◽  
Co2 Uptake ◽  
Controlled Conditions ◽  
Furnace Slag

Climate change is one of the most important issues affecting the future of the planet. Then, a lot of resources are being used to actively work on climate change issues and greenhouse gas reduction. Greenhouse gas (GHG) emissions are monitored by each country and reported yearly to the United Nations Framework Convention on Climate Change (UNFCCC). The Intergovernmental Panel on Climate Change (IPCC) published the document entitled “2006 IPCC Guidelines for National Greenhouse Gas Inventories” to provide the calculation rules and the way to inform the UNFCCC of the national GHG emissions. Currently, this document does not give a procedure to calculate the net carbon dioxide emissions to the atmosphere due to the Portland cement clinker production. The purpose of this paper is to get reliable relationships to better calculate the CO2 uptake by ground granulated blast-furnace slag (GGBFS) mortars. The application of this material cured under controlled conditions could help minimize environmental impact. Carbonation coefficient versus 28-day compressive strength relationship of mortars elaborated with GGBFS and cured underwater for 0, 1, 3, 7, 14, or 28 days were obtained. The main finding is the extreme sensitivity of the GGBFS mortars to the curing intensity and, therefore, they can be used cured under controlled conditions to minimize carbon footprints.

Global climate change and its ecological consequences

2017 ◽  
Author(s):  
Andrew Clarke
Keyword(s):  
Climate Change ◽  
Industrial Revolution ◽  
Global Climate ◽  
Lower Troposphere ◽  
Co2 Concentration ◽  
Lower Atmosphere ◽  
Radiation Balance ◽  
Past Century ◽  
Recent Climate ◽  
Frequent Response

The greenhouse effect is a simple consequence of an atmosphere containing gases that are transparent to visible light but which absorb infra-red radiation (radiatively active or greenhouse gases). The temperature of the lower troposphere is set by the radiation balance at the top of the atmosphere, and is determined predominantly by the CO2 concentration. Man has been adding radiatively active gases to the atmosphere since the Industrial Revolution, and this has led to an increase in the energy in the lower atmosphere, and thus a rise in its temperature. The bulk of the extra energy (~90%) has entered the ocean, which has also warmed significantly over the past century. The rate and extent of warming varies across the planet, depending on local circumstances. Palaeoecological studies have shown that changes in distribution have been a frequent response to climate change, though this requires somewhere for the organisms to move to. Many organisms have shifted their distribution in response to recent climate change. Many organisms have also shifted the timing of life-cycle events (phenology), with migration, breeding in animals, and germination, emergence, leafing and flowering in plants all occurring earlier in some (but not all) species. There are also changes in size, with some species becoming smaller as the climate warms.

Study on the Shrinkage of a Full-Scale Wall Made with Blast Furnace Slag Fine Aggregates

CONCREEP 10 ◽  
2015 ◽  
Author(s):  
Tomiyuki Kaneko ◽  
Keiichi Imamoto ◽  
Chizuru Kiyohara ◽  
Akio Tanaka ◽  
Ayuko Ishikawa
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Full Scale ◽  
Fine Aggregates ◽  
Furnace Slag

Influence of Melt Compounding on Blast Furnace Slag Filled PP Compounds: A Comparative Study

2017 ◽  
Vol 32 (4) ◽  
pp. 446-454
Author(s):  
A. Mostafa ◽  
G. Pacher ◽  
T. Lucyshyn ◽  
C. Holzer ◽  
E. Krischey ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Comparative Study ◽  
Blast Furnace Slag ◽  
Melt Compounding ◽  
Furnace Slag

ON THE USE OF SLAG CEMENT COMPOSITIONS IN THE CONSTRUCTION OF WELLS

2017 ◽  
pp. 80-85
Author(s):  
V. P. Ovchinnikov ◽  
O. V. Rozhkova ◽  
N. A. Aksenova ◽  
P. V. Ovchinnikov
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Elevated Temperatures ◽  
Cement Mortar ◽  
Setting Time ◽  
Rheological Parameters ◽  
Slag Cement ◽  
Furnace Slag

In the article studies of oil-filled compositions with the addition of blast-furnace slag for strength at elevated temperatures are presented. The rheological parameters of the slag cement slag cement mortar, as well as the setting time, were studied. Conclusions are drawn about the prospects of further study of slag cementcontaining compositions.

Sign in / Sign up

Export Citation Format

Share Document