PMID- 34832356
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20211130
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 14
IP  - 22
DP  - 2021 Nov 17
TI  - Influence of Potassium-Based Alkaline Electrolyzed Water on Hydration Process and 
      the Properties of Cement-Based Materials with Fly Ash.
LID - 10.3390/ma14226956 [doi]
LID - 6956
AB  - Alkaline electrolyzed water, a kind of clean green water with excellent 
      characteristics such as high activity, strong alkalinity, high ion penetrating 
      ability, electrical charge, and good molecule adsorption, was significant to the 
      resource utilization of industrial fly ash waste. This paper studies highly 
      active potassium-based alkaline electrolyzed water's impact, compared with 
      ordinary water, on the cement hydration process using microstructural methods 
      such as a hydration heat test, differential thermal analysis, X-ray diffraction 
      (XRD) pattern, and Scanning electron microscope (SEM) image analysis. Fly ash 
      cement-based materials were first prepared with alkaline electrolyzed water as 
      the mixing water. The alkaline electrolyzed water's influence on fly ash paste 
      workability and the mechanical properties of fly ash mortar for varying fly ash 
      proportions were ratified. Then alkaline electrolyzed water with the best pH 
      value was selected to prepare fly ash concrete, and its durability was studied. 
      The test results showed that it is feasible to increase the utilization rate of 
      fly ash by using alkaline electrolyzed water. Furthermore, it promoted the 
      process of cement hydration, increased the rate of the hydration reaction, and 
      the promotion effect increased with the increase in pH value of the alkaline 
      electrolyzed water, and also promoted the effective decomposition of the vitreous 
      shell of fly ash to stimulate its early activity. Concurrent tests with ordinary 
      water paste showed that the water requirement for normal consistency and setting 
      time with alkaline electrolyzed water paste were significantly less. Alkaline 
      electrolyzed water also solved the problem related to the low early strength of 
      fly ash mortar. Furthermore, using alkaline electrolyzed water with an optimum pH 
      value of 11.5 to prepare fly ash concrete effectively reduced concrete's 
      carbonation depth and carbonation rate and lessened the chloride ion migration 
      coefficient.
FAU - Yu, Zexin
AU  - Yu Z
AUID- ORCID: 0000-0001-8947-2247
AD  - School of Architectural Engineering, Qingdao Agricultural University, Qingdao 
      266109, China.
AD  - School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, 
      China.
FAU - Xie, Zixi
AU  - Xie Z
AD  - School of Architectural Engineering, Qingdao Agricultural University, Qingdao 
      266109, China.
FAU - Zhang, Tianyu
AU  - Zhang T
AD  - School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, 
      China.
FAU - Yue, Gongbing
AU  - Yue G
AD  - School of Architectural Engineering, Qingdao Agricultural University, Qingdao 
      266109, China.
FAU - Liu, Haibao
AU  - Liu H
AD  - School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, 
      China.
FAU - Li, Qiuyi
AU  - Li Q
AD  - School of Architectural Engineering, Qingdao Agricultural University, Qingdao 
      266109, China.
FAU - Wang, Liang
AU  - Wang L
AD  - School of Architectural Engineering, Qingdao Agricultural University, Qingdao 
      266109, China.
LA  - eng
GR  - 52078261/The National Natural Science Foundation of China/
GR  - 51978353/The National Natural Science Foundation of China/
PT  - Journal Article
DEP - 20211117
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC8624380
OTO - NOTNLM
OT  - alkaline electrolyzed water
OT  - cement hydration
OT  - durability
OT  - fly ash
OT  - mechanical properties
OT  - microstructural methods
OT  - workability
COIS- The authors declare no conflict of interest.
EDAT- 2021/11/28 06:00
MHDA- 2021/11/28 06:01
PMCR- 2021/11/17
CRDT- 2021/11/27 01:18
PHST- 2021/09/28 00:00 [received]
PHST- 2021/11/02 00:00 [revised]
PHST- 2021/11/10 00:00 [accepted]
PHST- 2021/11/27 01:18 [entrez]
PHST- 2021/11/28 06:00 [pubmed]
PHST- 2021/11/28 06:01 [medline]
PHST- 2021/11/17 00:00 [pmc-release]
AID - ma14226956 [pii]
AID - materials-14-06956 [pii]
AID - 10.3390/ma14226956 [doi]
PST - epublish
SO  - Materials (Basel). 2021 Nov 17;14(22):6956. doi: 10.3390/ma14226956.