Results 31 to 40 of about 148,266 (259)

Modified gypsum binder

open access: yesMATEC Web of Conferences, 2018
Gypsum-based binder modified by clay has properties close to the gypsum binder and can be used as plaster formulations or mortars. There are several reasons and chief among them is the lack of scientific based theory of formation and hardening properties
Kodzoev M-B.   +6 more
doaj   +1 more source

Efeito da pré-molhagem do agregado nas propriedades das argamassas com agregado reciclado deconcreto e agregado leve [PDF]

open access: yes, 2019
This paper examines the suitability of partially replacing natural aggregate, sand, (NA) with recycled concrete aggregate (RCA) or lightweight aggregate (LWA) in mortars, under the hypothesis that pre-wetting aggregates would produce improvement in ...
Aponte Hernández, Diego Fernando   +3 more
core   +4 more sources

Heat of hydration of Portland cement containing coal-derived char at different temperatures

open access: yesResults in Materials
The heat of hydration is fundamental in understanding the hydration mechanism of cementitious materials, and temperature can significantly affect the heat of hydration.
Hua Yu   +3 more
doaj   +1 more source

Effect of calcium aluminate cement variety on the hydration of Portland cement in blended system [PDF]

open access: yes, 2014
Two kinds of CACs with different monocalcium aluminate (CA) contents were used in the PC/CAC (PAC) mixtures. Effects of CA and CACs on the properties of PAC were analyzed by setting times and the compressive strength tests, and also by means of ...
De Schutter, Geert   +3 more
core   +2 more sources

Verification оf Non-Stationary Mathematical Model оf Concrete Hardening in Thermal Technological Installations

open access: yesНаука и техника, 2019
Thermo-technical installations consuming significant amounts of thermal energy are used in order to intensify precast and reinforced concrete production processes under industrial conditions.
A. M. Niyakovskii   +3 more
doaj   +1 more source

Effect of Hydration Heat Inhibitor on Thermal Stress of Hydraulic Structures with Different Thicknesses

open access: yesAdvances in Civil Engineering, 2020
Concrete hydration heat inhibitor can inhibit the early hydration reaction of concrete and reduce the initial heat release of concrete. However, there is no in-depth research on the effect of hydration heat inhibitor on hydraulic structures with ...
Wenqiang Xu   +4 more
doaj   +1 more source

Numerical prediction of rotary-kiln foundation temperature at an early age

open access: yesInvotek: Jurnal Inovasi Vokasional dan Teknologi, 2022
The hydration heat confined to the core of the mass concrete during the hydration reaction causes a temperature rise and irregular temperature distribution in the concrete.
Adek Tasri
doaj   +1 more source

Rietveld Quantitative Phase Analysis of Oil Well Cement: in Situ Hydration Study at 150 Bars and 150 °C [PDF]

open access: yes, 2019
Oil and gas well cements are multimineral materials that hydrate under high pressure and temperature. Their overall reactivity at early ages is studied by a number of techniques including through the use of the consistometer.
Cuesta-Garcia, Ana Maria   +5 more
core   +6 more sources

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

Predicting mechanical development of mine functional mortar: experiment and thermodynamic analysis

open access: yesJournal of Materials Research and Technology, 2023
Shotcrete mortar is an imperative material for tunnel surface supporting. The mine environment with different temperature affects the mechanical development of mortar, resulting in a difficult to predict its compressive strength development at high ...
Binbin Huo   +8 more
doaj   +1 more source

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