A mathematical model and the relative experiment of water absorption in cement mortar were investigated. The results showed that the change of radius of pore was decreased and absorption mass fraction was increased with the increased of absorption time. The possibility and direction of reaction during...
PORE SOLUTION CHEMISTRY AND ALKALI AGGREGATE REACTION. CONCRETE DURABILITY. KATHERINE AND BRYANT MATHER INTERNATIONL CONFERENCE, HELD AT ATLANTA, GEORGIA, ... Study of the pore solution chemistry of mature cement pastes, mortars and concretes has been possible in recent years through the development of...
Contents Review Research Articles Environmental Chemical Engineering Chemical Reaction Engineering Catalysis Novel Materials for Energy and Advanced Applications Green and Sustainable Science and Technology Virtual Special Issue Articles Corrigendum Receive an update when the latest issues in this journal are publ...
Effect of Water-Solids Ratio on the Compressive Strength, Degree of Reaction and Microstructural Characterization of Fly Ash-Waste Glass-Based Geopolymers On a global scale, the production of portland cement is responsible for approximately 5% of carbon emissions. In an effort to reduce carbon emissi...
In order to handle this new situation, the reaction rate is tuned during the simulations in such a way that the chemical equilibrium remains verified. This tuning is performed thanks to a numerical proportional integral (PI) controller technique. This extension of the Petersen matrix is applied ...
We demonstrate high faradaic and electrolytic efficiency and high rate operation in a near-neutral electrolyte of NaBr in water, whereby bromide is electro-oxidized to bromate concurrent with hydrogen evolution in one cell, and bromate is chemically reduced to bromide in a catalytic reaction that ...
PURPOSE: To obtain a cement admixture and a cement composition in which strength is well provided, and which is effective in producing quick hardening cement excellent in alkali aggregate reaction resistance and is mainly used for the civil engineering and construction industry. ;CONSTITUTION: A cemen...
(Fig.6A). Other studies have investigated producing H2from BFG by using a CO2sorbent to effectively shift the reaction equilibrium towards H2production via the water–gas shift reaction. Although this process has been demonstrated on pilot scale [43], its product is a mixed H2/N2stream that ...
Normally, it can be expressed with a chemical formula. For an example, the chemical formula for water is H2O, thus the chemical composition of water may be interpreted as a 2:1 ratio of hydrogen atoms to oxygen atoms. For a mixture, the chemical is equivalent to quantifying the ...
Research Articles Environmental Chemical Engineering Chemical Reaction Engineering Novel Materials for Energy and Advanced Applications Green and Sustainable Science and Technology Catalysis Short Communication Virtual Special Issue Articles Receive an update when the latest issues in this journal are publishedSign...