Zobrazeno 1 - 10
of 234
pro vyhledávání: '"Haeng Ki Lee"'
Publikováno v:
Materials, Vol 12, Iss 10, p 1673 (2019)
This present study investigates the effects of CaSO4 incorporation on the pore structure and drying shrinkage of alkali-activated slag and fly ash. The slag and fly ash were activated at a 5:5 ratio by weighing with a sodium silicate. Thereafter, 0%,
Externí odkaz:
https://doaj.org/article/2945576db5ff4779a9fac26b5d7b7b40
Autor:
Joon Ho Seo, Issam T. Amr, Sol Moi Park, Rami A. Bamagain, Bandar A. Fadhel, Gwang Mok Kim, Ali S. Hunaidy, Haeng Ki Lee
Publikováno v:
Materials, Vol 11, Iss 11, p 2187 (2018)
Accelerated carbonation curing (ACC) as well as partial replacement of cement with natural minerals are examples of many previous approaches, which aimed to produce cementitious products with better properties and environmental amicabilities. In this
Externí odkaz:
https://doaj.org/article/5a2037ff791b48e5bcdca28fc58b7453
Publikováno v:
Materials, Vol 11, Iss 5, p 782 (2018)
The present study investigated the CaCO3 precipitation performance of ureolytic and non-ureolytic bacteria co-cultured as a self-healing agent for cementitious materials crack repair. Three different inoculum ratios of ureolytic Sporosarcina pasteuri
Externí odkaz:
https://doaj.org/article/01b0ba1513904ac9be0edb6184411b95
Publikováno v:
Materials, Vol 10, Iss 4, p 447 (2017)
The present study investigates the retention mechanisms of cesium and strontium for alkali-activated cements. Retention mechanisms such as adsorption and precipitation were examined in light of chemical interactions. Batch adsorption experiments and
Externí odkaz:
https://doaj.org/article/e1b307b7fe3c491280eb619dc3ca2c0b
Publikováno v:
Journal of the Computational Structural Engineering Institute of Korea. 36:131-136
Publikováno v:
Journal of the Korean Magnetics Society. 30:168-174
Publikováno v:
ACS Applied Electronic Materials. 2:3346-3357
This study reports flexible nanocomposite-based piezoelectric nanogenerators (PENGs) fabricated by dispersing various piezoelectric nanoparticles (BaTiO3, ZnO, and PZT) and graphene nanopowder in a...
Publikováno v:
Advances in Condensed Matter Physics, Vol 2015 (2015)
We studied the electronic and magnetic properties of (Al1−yMny)GaP2 (Ga-rich) and Al(Ga1−yMny)P2 (Al-rich) with y = 0.03125, 0.0625, 0.09375, and 0.125 by using the first-principles calculations. The ferromagnetic Mn-doped AlGaP2 chalcopyrite is
Externí odkaz:
https://doaj.org/article/17d3a86418ba47aa8af70cf2c90593f0
Publikováno v:
Chemosphere. 288(Pt 2)
The adsorptive removal performance of strontium (Sr) through bio-mineralization metabolism under various parameters was evaluated in this study. The primary mechanism of bio-mineralization used in this study was the urea hydrolysis process through ba
Publikováno v:
Construction and Building Materials. 224:40-47
Conversion from metastable phase to stable phase in calcium aluminate cement (CAC) causes volumetric instability, resulting in loss of compressive strength. This study investigated the effect of CaSO 4 on the phase conversion of calcium aluminate cem