Results 1 to 10 of about 156,182 (239)

A study of the hydration characteristics and determination method of mineral content of gypsum rock

open access: yesShuiwen dizhi gongcheng dizhi, 2022
Expansibility and corrosivity of anhydrite and gypsum are the main disease-causing factors in gypsum rock tunnel engineering. Investigation of the mineral compositions, hydration characteristics, and contents of anhydrite and gypsum is the basis for ...
Wen ZHAO   +4 more
doaj   +1 more source

Soil gypsum determination [PDF]

open access: yesSoil Science Society of America Journal, 2020
Abstract The methods for gypsum content determination in soils are summarized and their applicability discussed. Special attention is given to the critical step of sample preparation, stressing the elimination of the oven heating at temperatures surpassing 40°C.
Herrero Isern, Juan   +2 more
openaire   +3 more sources

Palaeogeographical zonation of gypsum facies: Middle Miocene Badenian of Central Paratethys (Carpathian Foredeep in Europe)

open access: yesJournal of Palaeogeography, 2013
Studies on Middle Miocene Badenian gypsum in various parts of Central Paratethys, the oldest widespread primary marine gypsum, in western Ukraine, southern Poland and Moravia (Czech Republic) indicate that there are three principal gypsum facies ...
Tadeusz Marek Peryt
doaj   +1 more source

A Scanning Transmission X-ray Microscopy Study of Cubic and Orthorhombic C₃A and Their Hydration Products in the Presence of Gypsum. [PDF]

open access: yes, 2016
This paper shows the microstructural differences and phase characterization of pure phases and hydrated products of the cubic and orthorhombic (Na-doped) polymorphs of tricalcium aluminate (C₃A), which are commonly found in traditional Portland cements ...
Chae, Sejung Rosie   +5 more
core   +3 more sources

Study in gypsum usage and proposal for gypsum concrete as nonflammable construction material at Syowa Station

open access: yesAntarctic Record, 1985
We pointed out the nonflammability and the low temperature quality of gypsum to gauge incombustibility of the buildings at Syowa Station. We assumed a building of gypsum concrete of which the main component is gypsum and experimented on the efficiency ...
Toshio Sato   +2 more
doaj   +1 more source

Experimental Study on Bond-Slip Behavior between H-Shaped Steel and Gypsum Cover in SGFCG

open access: yesJournal of Engineering, 2020
Nine push-out specimens of H-shaped steel with gypsum cover (HSG) are designed to study the bond-slip behavior between steel and gypsum in steel grid frame filling with cast-in-situ gypsum (SGFCG). Three main factors including gypsum compression strength
Tao Sun   +4 more
doaj   +1 more source

Influence of the Calcination Temperature of Synthetic Gypsum on the Particle Size Distribution and Setting Time of Modified Building Materials

open access: yesEnergies, 2020
The paper assesses the influence of the calcination temperature of synthetic gypsum binder on the binding properties of innovative gypsum pastes, as well as on masonry and plastering mortars.
Artur Koper   +3 more
doaj   +1 more source

Improvement of dimensional stability and mechanical properties of gypsum particleboard by adding white cement [PDF]

open access: yesتحقیقات علوم چوب و کاغذ ایران, 2015
In the present research improvement of dimensional stability and mechanical properties of gypsum particleboard by using white cement was investigated. In manufacturing gypsum particleboard, Micronize gypsum was used in three levels of 2.5:1, 2.75:1 and 3:
Saeed Khojasteh Khosro   +3 more
doaj   +1 more source

Effective use of dry foaming agents in the manufacture of foam gypsum thermal insulation nanocompositions [PDF]

open access: yesНанотехнологии в строительстве, 2022
: Introduction. The elaboration of foamed eco-friendly gypsum nanocomposites with low specific gravity, high thermal insulation, operational and technical and economic characteristics remains an urgent task.
Ruslan I. Shigapov   +4 more
doaj   +1 more source

Gypsum-DL: an open-source program for preparing small-molecule libraries for structure-based virtual screening [PDF]

open access: yes, 2019
Computational techniques such as structure-based virtual screening require carefully prepared 3D models of potential small-molecule ligands. Though powerful, existing commercial programs for virtual-library preparation have restrictive and/or expensive ...
Durrant, Jacob D.   +7 more
core   +1 more source

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