Chemical Reaction Characteristics of Sugarcane-Waste-Fiber-Ash (SWFA), Blended Cement - A Study of the Chemical Shrinkage and Heat of Hydration

2018 ◽  
Vol 8 (6) ◽  
Author(s):  
J. N. Mwero ◽  
S. O. Abuodha
Keyword(s):  
Chemical Reaction ◽  
Blended Cement ◽  
Heat Of Hydration ◽  
Chemical Shrinkage ◽  
Reaction Characteristics

Molecular dynamics simulations of shock loading of nearly fully dense granular Ni–Al composites

2019 ◽  
Vol 21 (36) ◽  
pp. 20252-20261
Author(s):  
Yongnan Xiong ◽  
Xiaofan Li ◽  
Shifang Xiao ◽  
Huiqiu Deng ◽  
Bowen Huang ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Chemical Reaction ◽  
Shock Loading ◽  
Shock Propagation ◽  
Inhomogeneous Deformation ◽  
Reaction Characteristics ◽  
Dynamics Simulations

We used molecular dynamics simulations to study the shock propagation, inhomogeneous deformation, and initiation of the chemical reaction characteristics of nearly fully dense reactive Ni–Al composites.

scholarly journals Chemical Reaction Spectrum

2018 ◽  
Author(s):  
Jianchao Lee ◽  
Jianghong Li ◽  
Qiannan Duan ◽  
Sifan Bi ◽  
Ruen Luo ◽  
...  
Keyword(s):  
Artificial Intelligence ◽  
Data Acquisition ◽  
Chemical Reaction ◽  
Chemical Characterization ◽  
Important Data ◽  
Data Set ◽  
Characterization Methods ◽  
Graphical Data ◽  
Reaction Characteristics ◽  
Reaction Spectrum

We proposed a new method of chemical reaction spectrum (CRS) in terms of chemical characterization, and established a method to fulfill it by combining with 3D chemical printing technology and 2D sampling. The CRS can provide a graphical data set for pure or mixed substances, which can comprehensively describe the reaction characteristics of the research object. Compared with common characterization methods (NMR, UV/vis, IR, Raman, GC or LC), it is more capable of revealing chemical behaviors enough, and is much lower in cost. It is expected to be an important data acquisition approach for the application of artificial intelligence in the field of chemistry in the future.

Heat of hydration of blended cement containing treated ground palm oil fuel ash

2012 ◽  
Vol 27 (1) ◽  
pp. 78-81 ◽  
Author(s):  
Chea Chandara ◽  
Khairun Azizi Mohd Azizli ◽  
Zainal Arifin Ahmad ◽  
Syed Fuad Saiyid Hashim ◽  
Etsuo Sakai
Keyword(s):  
Palm Oil ◽  
Blended Cement ◽  
Heat Of Hydration ◽  
Palm Oil Fuel Ash ◽  
Fuel Ash ◽  
Oil Fuel

scholarly journals Chemical Reaction Spectrum

2018 ◽  
Author(s):  
Jianchao Lee ◽  
Jianghong Li ◽  
Qiannan Duan ◽  
Sifan Bi ◽  
Ruen Luo ◽  
...  
Keyword(s):  
Artificial Intelligence ◽  
Data Acquisition ◽  
Chemical Reaction ◽  
Chemical Characterization ◽  
Important Data ◽  
Data Set ◽  
Characterization Methods ◽  
Graphical Data ◽  
Reaction Characteristics ◽  
Reaction Spectrum

We proposed a new method of chemical reaction spectrum (CRS) in terms of chemical characterization, and established a method to fulfill it by combining with 3D chemical printing technology and 2D sampling. The CRS can provide a graphical data set for pure or mixed substances, which can comprehensively describe the reaction characteristics of the research object. Compared with common characterization methods (NMR, UV/vis, IR, Raman, GC or LC), it is more capable of revealing chemical behaviors enough, and is much lower in cost. It is expected to be an important data acquisition approach for the application of artificial intelligence in the field of chemistry in the future.

Machine learning modelling of chemical reaction characteristics: yesterday, today, tomorrow

2021 ◽  
Vol 31 (6) ◽  
pp. 769-780
Author(s):  
Timur I. Madzhidov ◽  
Assima Rakhimbekova ◽  
Valentina A. Afonina ◽  
Timur R. Gimadiev ◽  
Ravil N. Mukhametgaleev ◽  
...  
Keyword(s):  
Machine Learning ◽  
Chemical Reaction ◽  
Reaction Characteristics

Chemical Reaction Characteristics of HDTMA+ Cations in Interlayer Space of Vermiculite Crystal Layers

2010 ◽  
Vol 96 ◽  
pp. 15-20 ◽  
Author(s):  
Tong Jiang Peng ◽  
Hong Juan Sun ◽  
Jin Mei Sun ◽  
Hai Feng Liu
Keyword(s):  
Reaction Mechanism ◽  
Chemical Reaction ◽  
Interlayer Space ◽  
Organic Cations ◽  
Reaction Characteristics ◽  
Interstratified Mineral

Hydrophlogopite, a regular interstratified mineral with 1:1 ratio of vermiculite and phlogopite crystal layers, was modified with sodium and organically intercalated with HDTMAB, and then the samples were examined with XRD. Based on the theoretical geometric dimensions of organic cations, the structure and arrangement model of HDTMA+ cation in the interlayer space of vermiculite crystal layers were studied, the reaction mechanism of organic intercalation was also discussed. The results show that HDTMA+ cations enter into the interlayer space of vermiculite crystal layers only without exchange with the cations in the interlayer space of phlogopite crystal layers, and that the arrangement models of HDTMA+ cations in the interlayer space of vermiculite crystal layers varies with the added amount of HDTMAB. When the added amount is small, the arrangement model of HDTMA+ cations in the interlayer space of vermiculite crystal layers is lateral-bilayer, and when the added amount is larger, the arrangement model is paraffin-type monolayer.

scholarly journals Thermovision monitoring the heat of hydration in concrete

2020 ◽  
Author(s):  
Aleksandar Savić ◽  
◽  
Zoran Stević ◽  
Sanja Martinović ◽  
Milica Vlahović ◽  
...  
Keyword(s):  
Portland Cement ◽  
Chemical Reaction ◽  
Fresh Concrete ◽  
Heat Of Hydration ◽  
Site Conditions ◽  
Building Site ◽  
Concrete Failure ◽  
Concrete Hardening

Due to the Portland cement chemical reaction, which always takes place in a hardening concrete, a certain amount of heat is released. This heat should be quantified, as it can harm or aid the concrete itself, depending on the concrete components, structure element, ambient and building site conditions. There are number of possible setups for the monitoring of heat of hydration, two of which have been applied in the case presented in this paper. Four concretes were monitored with the use of the two stated techniques for 24 hours. First technique used is thermo-vision camera which monitored the surface, and the second is thermosensor - used for monitoring of interior of fresh concrete hardening mass. The potential of the applied setup lays in the ease of installation, low price, and possibilities of mass application, which could substantially aid the monitoring and prevent concrete failure.

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