Preparation of Whitening Dihydrate Gypsum and Short Columnar α‐Hemihydrate Gypsum with FGD Gypsum
Sign Up to like & getrecommendations! Published in 2017 at "Crystal Research and Technology"
DOI: 10.1002/crat.201700166
Abstract: Using FGD gypsum as the raw material, whitening and large prismatic dihydrate gypsum can be obtained by dissolution-crystallization and decoloring process with α-hemihydrate gypsum whiskers prepared in MgSO4-CaCl2-H2O solution, which can transform into whitening short columnar… read more here.
Keywords: gypsum; fgd gypsum; dihydrate gypsum; hemihydrate gypsum ... See more keywords
Thermal analysis of ternary gypsum-based binders stored in different environments
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Thermal Analysis and Calorimetry"
DOI: 10.1007/s10973-018-7398-1
Abstract: Although gypsum belongs to the low-energy environmentally friendly binders, its wider applications in building constructions are limited due to the negative effect of moisture on its mechanical properties. When calcined gypsum (CaSO4·1/2H2O) transforms into its… read more here.
Keywords: gypsum; stored different; analysis; thermal analysis ... See more keywords
The kinetics of the precipitation of gypsum, CaSO4·2H2O, over a wide range of reactant concentrations
Sign Up to like & getrecommendations! Published in 2020 at "Reaction Kinetics, Mechanisms and Catalysis"
DOI: 10.1007/s11144-020-01838-0
Abstract: In this work, the precipitation kinetics of gypsum was studied over a wide range of degree of supersaturation at 25 °C in the reaction Na2SO4aq+CaCl2aq+2H2O→2NaClaq+CaSO4·2H2OS\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\text{Na}}_{2} {\text{SO}}_{{4\left(… read more here.
Keywords: gypsum; precipitation; caso4; text ... See more keywords
Regulation of As and Cd accumulation in rice by simultaneous application of lime or gypsum with Si-rich materials
Sign Up to like & getrecommendations! Published in 2020 at "Environmental Science and Pollution Research"
DOI: 10.1007/s11356-020-11053-y
Abstract: Calcium (Ca) and silicon (Si) have been found to reduce inorganic pollutant accumulation by agricultural plants. Arsenic (As) and cadmium (Cd) are the most common and dangerous inorganic pollutants in cultivated soil that often present… read more here.
Keywords: gypsum; accumulation; accumulation rice; soil ... See more keywords
Application of GPR and ERT methods for recognizing of gypsum deposits in urban areas
Sign Up to like & getrecommendations! Published in 2019 at "Acta Geophysica"
DOI: 10.1007/s11600-019-00370-7
Abstract: This paper presents the selected results of GPR (ground penetrating radar) and ERT (electrical resistivity tomography) surveys carried out on the sites in Poland where shallow karst forms were found in gypsum deposits. The aim… read more here.
Keywords: gpr ert; gypsum; karst forms; ert methods ... See more keywords
Analysis of Remediating Effects of Peat, Sawdust, and Gypsum in Alkaline Bauxite Residue Based on Orthogonal Experiments
Sign Up to like & getrecommendations! Published in 2019 at "JOM"
DOI: 10.1007/s11837-019-03593-7
Abstract: An optimization study has been carried out on remediation of alkaline bauxite residue (ABR) using peat, sawdust, and gypsum. The results for the tolerance index (TI) and analysis of variance revealed that the order of… read more here.
Keywords: gypsum; sawdust gypsum; alkaline bauxite; bauxite residue ... See more keywords
ASTER-based remote sensing investigation of gypsum in the Kohat Plateau, north Pakistan
Sign Up to like & getrecommendations! Published in 2019 at "Carbonates and Evaporites"
DOI: 10.1007/s13146-019-00543-x
Abstract: Gypsum is an important industrial mineral, the demand of which has increased manifold over the years, especially due to growing cement industry. Considering the industrial significance of gypsum, we employed advanced space-borne thermal emission and… read more here.
Keywords: gypsum; aster based; based remote; remote sensing ... See more keywords
Thermal failure time of non-loadbearing gypsum board assemblies in standard furnace tests
Sign Up to like & getrecommendations! Published in 2017 at "Applied Thermal Engineering"
DOI: 10.1016/j.applthermaleng.2017.08.141
Abstract: Abstract Gypsum board assemblies are important in preventing spread of flame and hot smoke, keeping escape routes available, and extending evacuation time. In general, heavier assemblies are expected to provide a higher degree of fire… read more here.
Keywords: board assemblies; gypsum; failure time; time ... See more keywords
Water resistant blended cements containing flue-gas desulfurization gypsum, Portland cement and fly ash for structural applications
Sign Up to like & getrecommendations! Published in 2019 at "Cement and Concrete Composites"
DOI: 10.1016/j.cemconcomp.2019.04.033
Abstract: Abstract The growth of electricity usage in Thailand leads to a greater amount of flue-gas desulfurization gypsum (FGDG) to be stockpiled within the power plants. Similar to natural mined gypsum, the disadvantages of FGDG for… read more here.
Keywords: compressive strength; flue gas; water; gypsum ... See more keywords
Studies on the early hydration of two modifications of ye'elimite with gypsum
Sign Up to like & getrecommendations! Published in 2017 at "Cement and Concrete Research"
DOI: 10.1016/j.cemconres.2016.11.009
Abstract: Abstract Two modifications of ye'elimite (namely orthorhombic ye'elimite (stoichiometric C4A3$) and iron-containing cubic ye'elimite (C4A2,7F0,3 S ¯ )) were synthesized and the reactions without additional sulfate and with gypsum were tracked by means of heat… read more here.
Keywords: gypsum; ettringite precipitation; modifications elimite; two modifications ... See more keywords
On the origin of saline compounds in acidic salt flats (Central Andean Altiplano)
Sign Up to like & getrecommendations! Published in 2021 at "Chemical Geology"
DOI: 10.1016/j.chemgeo.2021.120155
Abstract: Abstract Volcanism, aridity, and endorheism converge in the central zone of the Andean Cordillera (Bolivia, Chile, and Argentina, between latitudes 19° S and 27° S). The Gorbea and Ignorado basins are pristine Andean sites in… read more here.
Keywords: central andean; salt flats; salt; gypsum ... See more keywords