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Strength and Durability Assessment of Portland Cement Mortars Formulated from Hydrogen-Rich Water

Title
Strength and Durability Assessment of Portland Cement Mortars Formulated from Hydrogen-Rich Water
Author
조병완
Keywords
MECHANICAL-PROPERTIES; HUSK ASH; CONCRETE; HYDRATION; CHLORIDE; WASTE
Issue Date
2017-04
Publisher
HINDAWI LTD
Citation
ADVANCES IN MATERIALS SCIENCE AND ENGINEERING, v. 2017, Article no. 2526130
Abstract
We investigated the effects of hydrogen-rich water (HRW) on the strength and durability of Portland cement mortars. We comparatively assessed the performances of HRW-based mortars (HWMs) with respect to cement mortars fabricated from control water (CWM). The results indicate that the use of HRW significantly improves the compressive, flexural, and splitting tensile strength of mortars at both the early and later ages of curing. Durability was assessed in terms of capillary absorption, ultrasonic pulse velocity (UPV), dynamic elastic modulus (DEM), and electrical resistivity (ER). We attribute the generally improved mechanical and durability properties of HWMs to the formation of more cement hydrates with fewer voids in the hydrogen-rich environment. Based on X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscope (SEM) analyses, we deduce that the use of HRW in Portland cement mortars produces a more compact, dense, and durable microstructure with fewer voids due to a higher degree of hydration.
URI
https://www.hindawi.com/journals/amse/2017/2526130/https://repository.hanyang.ac.kr/handle/20.500.11754/113616
ISSN
1687-8434; 1687-8442
DOI
10.1155/2017/2526130
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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