scholarly journals Influence of Glass Silica Waste Nano Powder on the Mechanical and Microstructure Properties of Alkali-Activated Mortars

Nanomaterials ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 324 ◽  
Author(s):  
Mostafa Samadi ◽  
Kwok Wei Shah ◽  
Ghasan Fahim Huseien ◽  
Nor Hasanah Abdul Shukor Lim
Keyword(s):  
Carbon Dioxide ◽  
Second Life ◽  
Carbon Dioxide Emissions ◽  
Waste Recycling ◽  
Glass Bottle ◽  
Glass Waste ◽  
Nano Powder ◽  
Glass Silica ◽  
Furnace Slag ◽  
Alkali Activated

The recycling of millions of tons of glass bottle waste produced each year is far from optimal. In the present work, ground blast furnace slag (GBFS) was substituted in fly ash-based alkali-activated mortars (AAMs) for the purpose of preparing glass bottle waste nano-powder (BGWNP). The AAMs mixed with BGWNP were subsequently subjected to assessment in terms of their energy consumption, economic viability, and mechanical and chemical qualities. Besides affording AAMs better mechanical qualities and making them more durable, waste recycling was also observed to diminish the emissions of carbon dioxide. A more than 6% decrease in carbon dioxide emissions, an over 16% increase in compressive strength, better durability and lower water absorption were demonstrated by AAM consisting of 5% BGWNP as a GBFS substitute. By contrast, lower strength was exhibited by AAM comprising 10% BGWNP. The conclusion reached was that the AAMs produced with BGWNP attenuated the effects of global warming and thus were environmentally advantageous. This could mean that glass waste, inadequate for reuse in glass manufacturing, could be given a second life rather than being disposed of in landfills, which is significant as concrete remains the most commonplace synthetic material throughout the world.

Modeling of Carbon Dioxide Measurement on Cement Plants

2012 ◽  
Vol 610-613 ◽  
pp. 2120-2128 ◽  
Author(s):  
Jun Xia Peng ◽  
Liang Huang ◽  
Yu Bo Zhao ◽  
Pan Chen ◽  
Lu Zeng ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Footprint ◽  
Carbon Dioxide Emissions ◽  
Co2 Emission ◽  
Firing Process ◽  
Input Output ◽  
Carbon Dioxide Measurement ◽  
Key Steps ◽  
Furnace Slag ◽  
Reducing Co2 Emission

Input-output model on cement plants were established. Carbon dioxide emissions of key steps and carbon footprint of products were calculated and predicted using the input-output model. The results showed that CO2 emission in the plant (the production of the plant is 1320000t a year) reached 910000 t a year and CO2 emission per ton product is 0.689 ton. Over 80% of the total CO2 was emitted during the process of firing，so the firing process is the key step for reducing CO2 emission in the cement plant. Carbon footprint of three kinds of cement products including ordinary portland cement, portland pozzolan cement and portland blast furnace slag cement are 0.76, 0.59, 0.72 respectively.

Alkali-activated mortars blended with glass bottle waste nano powder: Environmental benefit and sustainability

2020 ◽  
Vol 243 ◽  
pp. 118636 ◽  
Author(s):  
Ghasan Fahim Huseien ◽  
Hussein K. Hamzah ◽  
Abdul Rahman Mohd Sam ◽  
Nur Hafizah A. Khalid ◽  
Kwok Wei Shah ◽  
...  
Keyword(s):  
Environmental Benefit ◽  
Glass Bottle ◽  
Nano Powder ◽  
Alkali Activated

Investigation of Carbon Footprint on Campus - A Case Study of Tajen University

2014 ◽  
Vol 962-965 ◽  
pp. 1495-1499
Author(s):  
Chung Yi Chung ◽  
Chang Ling Miaw ◽  
Yung Chuan Huang ◽  
Chao Cheng Chung ◽  
Tien Jen Lo
Keyword(s):  
Carbon Dioxide ◽  
Carbon Footprint ◽  
Latent Variables ◽  
Carbon Dioxide Emissions ◽  
Electricity Consumption ◽  
Waste Recycling ◽  
School Year ◽  
Significant Difference ◽  
Campus Activities ◽  
And Gender

This study investigates and analysis the carbon dioxide emissions focus on student’s campus activities in the Tajen University during the school year. Survey queries includes commute distance, using means of transport, means of transport emissions, food consumption survey, the amount of waste, recycling and electricity consumption. The collected information was integrated into the carbon footprint calculation. This study investigated a total of 70 college students with 60 valid questionnaires in 85.7% recovery rate. Using descriptive statistics analysis quantitatively describing the students’ basic attributes and utilize analysis of variance to analyze the differences between students’ differences and their associated on carbon dioxide emissions. In this study, the result showed Tajen University students’ carbon footprint averaged 2.31±0.37 kg/person-day. Carbon footprint analysis results indicate that student age, grade, and gender difference between latent variables have different scenarios on carbon footprint model, such as, different genders no significant difference by measuring the carbon footprint, but of different ages and grade under test carbon footprint had a significant difference.

scholarly journals CO2 mineral sequestration with the use of ground granulated blast furnace slag

2017 ◽  
Vol 33 (1) ◽  
pp. 111-124 ◽  
Author(s):  
Alicja Uliasz-Bocheńczyk ◽  
Eugeniusz Mokrzycki
Keyword(s):  
Carbon Dioxide ◽  
Blast Furnace ◽  
Carbon Dioxide Emissions ◽  
Blast Furnace Slag ◽  
Binding Capacity ◽  
Steel Production ◽  
Waste Products ◽  
Iron And Steel ◽  
Mineral Sequestration ◽  
Furnace Slag

Abstract The mineral sequestration using waste products is a method of reducing CO2 emissions that is particularly interesting for major emitters and producers of mineral wastes, such as iron and steel industries. The CO2 emissions from iron and steel production amounted to 6,181.07 kt in 2014 (PNIR 2016). The aforementioned industry participates in the EU emission trading system (EU ETS). However, blast furnace processes produce mineral waste - slag with a high content of CaO which can be used to reduce CO2 emissions. Metallurgical slag can be used to carry out direct (a one-step process) or indirect (two-stage process) process of mineral sequestration of carbon dioxide. The paper presents the degree of carbonation of the examined samples of granulated blast furnace slags defined by the six-digit code (10 02 01) for the waste and the respective two-digit (10 02) chapter heading, according to the Regulation of the Minister of the Environment of 9 December 2014 on the waste catalogue. The carbonation process used the direct gas-solid method. The slags were wetted on the surface and treated with CO2 for 28 days; the obtained results were compared with the analysis of fresh waste products. The analyzed slags are characterized by a high content of calcium (nearly 24%), while their theoretical binding capacity of CO2 is up to 34.1%. The X-ray diffraction (XRD) analysis of the phase composition of slags has revealed the presence of amorphous glass phase, which was confirmed with the thermogravimetric (DTA/TG) analysis. The process of mineral sequestration of CO2 has resulted in a significant amount (9.32%) of calcium carbonate - calcite, while the calculated degree of carbonation of the examined blast furnace slag is up to 39%. The high content of calcium, and a significant content of CaCO3-calcite, has confirmed the suitability of the discussed waste products to reduce carbon dioxide emissions.

Energy Use and Carbon Dioxide Emissions from Cropland Production in the United States, 1990-2004

2008 ◽  
Author(s):  
R.G. Nelson, ◽  
C.H. Hellwinckel, ◽  
C.C. Brandt, ◽  
T.O. West, ◽  
D.G. De La Torre Ugarte, ◽  
...  
Keyword(s):  
United States ◽  
Carbon Dioxide ◽  
Carbon Dioxide Emissions ◽  
Energy Use ◽  
The United States
Sign in / Sign up

Export Citation Format

Share Document