Strength Properties According to the Conditions of Low Carbon Inorganic Composite Using Industrial By-product

Lee, Yun-Seong; Lee, Sang-Soo; Song, Ha-Young

doi:10.5345/jkibc.2012.12.1.054

Cited by 3 publications

(1 citation statement)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These products have higher strength and durability than concrete using conventional Portland cement. [6] As the alkali activation proceeds, the pH of the mixture usually remains above 13.5 because the blast furnace slag undergoes the potential hydroprocessing of high concentrations of OH-in the mixture. In this process, the concentration of OH-is very high and the film of the blast furnace slag is destroyed and the silicate and the aluminate salt are dissolved in the solution by hydration complex.…”

Section: Blast Furnace Slagmentioning

confidence: 99%

Radon Gas Adsorption Properties of Non-Cement Matrix Using Anthracite

Lim¹,

Pyeon²,

Lee³

2018

IJET

View full text Add to dashboard Cite

Background/Objectives: Recently, research on minimizing the exposure of radon in human environment is under way due to the threat of exposure to radiation, which is a problem in the world.Methods/Statistical analysis: This study is about the production of Radon Radiation Absorbing Hardeners for radon - emitting materials in indoor environment of human body. The anthracite used as a conventional filter medium was used as a radon adsorbent and the characteristics of an adsorbed cured body for the replacement ratio of anthracite were analyzed.Findings: As a result of the analysis of the experimental results, the results of the measurement of the radon gas concentration are as follows. And the adsorption effect on the half - life period of 3.8 days of radon gas was investigated. The adsorption properties of radon gas showed similar tendency irrespective of the measurement period. The longer the period, the more the concentration of radon gas was constant.Improvements/Applications: As a result of this study, the concentration of radon gas tended to decrease as the anthracite replacement ratio increased, which was not related to the duration of the measurement period of 3 days and 7 days. It is considered that the average data analysis is needed through long-term measurement of radon gas, and additional experiments are required considering the space and spatial characteristics. In addition, performance evaluation of other adsorbents is also considered necessary.

show abstract

Section: Blast Furnace Slagmentioning

confidence: 99%

Radon Gas Adsorption Properties of Non-Cement Matrix Using Anthracite

Lim¹,

Pyeon²,

Lee³

2018

IJET

View full text Add to dashboard Cite

show abstract

Strength Properties of Alkali-Activated Lightweight Composites with Alkali Activators of Different Types and Amounts

Lee¹,

Kim²,

Park³

2014

Journal of the Korea Institute of Building Construction

View full text Add to dashboard Cite

In order to reduce the emission of carbon dioxide(CO 2 ), this research use blast furnace slag in concrete manufacture, as 100% replacement of cement. The aim of this study is to investigate the density and strength properties of alkali-activated lightweight composites with alkali activators of different types and different amounts. The bubble for achieving the lightweight of alkali-activated lightweight composites was generated in the reaction between the paper ash and the alkali activators instead of using a foaming agent. Lightweight formed concrete was conducted basic experimental for determining replacement ratio of paper ash. Then, the density and strength were measured according to the types and the contents of the alkali accelerator that can react with the paper ash. As results, the optimum replacement ratio of the paper ash was 5%. The alkali activator containing NaOH 12.5% obtained the lowest weight of 1.13g/㎤. Also, compressive strength were relatively high. Therefore, this study demonstrated that alkali accelerator with a certain amount of NaOH can achieve relatively high strength and lightweight alkali-activated lightweight composites.

show abstract

Engineering Properties of the Non-Cement Mortar using the Fly ash from Combined Heat Power Plant and Recycled Fine Aggregate

Nam¹,

Lim²,

Lee³

2015

Journal of the Korea Institute of Building Construction

View full text Add to dashboard Cite

In this study, to suggest the application method of recycled fine aggregate, the non-cement mortar was prepared and studied with the binders of blast furnace slag, fly ash, and fly ash from combined heat power plant. As a basic experiment, a series of tests was conducted to determine the potions of the binders and types of activator. When the binder was consisted with 20% of fly ash and 40% of fly ash from combined heat power plant, the highest strength of the mortar was obtained, and as an activator, the combination of sodium hydroxide 2.5%, and calcium hydroxide 7.5% showed the highest strength of the mortar. Therefore, this study focuses on engineering properties of mortar contains fly ash from combined heat power plant and recycled fine aggregate according to replacement ratio of recycled fine aggregate based on the optimum mix from the basic experiment. As a result, the best replacement ratio of recycled fine aggregate is 75%.

show abstract

Strength Properties According to the Conditions of Low Carbon Inorganic Composite Using Industrial By-product

Cited by 3 publications

References 7 publications

Radon Gas Adsorption Properties of Non-Cement Matrix Using Anthracite

Radon Gas Adsorption Properties of Non-Cement Matrix Using Anthracite

Strength Properties of Alkali-Activated Lightweight Composites with Alkali Activators of Different Types and Amounts

Engineering Properties of the Non-Cement Mortar using the Fly ash from Combined Heat Power Plant and Recycled Fine Aggregate

Contact Info

Product

Resources

About