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Cement

About: Cement is a research topic. Over the lifetime, 68440 publications have been published within this topic receiving 829356 citations.


Papers
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Journal ArticleDOI
TL;DR: In this article, the role of material-based solutions to reducing CO 2 emissions from cement production considering factors that could influence implementation is examined, and it is shown that the 2°C scenario targets for 2050 can be met through increased use of calcined clay and engineered filler with dispersants.

311 citations

Journal ArticleDOI
Warda Ashraf1
TL;DR: In this article, the authors summarized the existing knowledge regarding the carbonation of cement-based materials and identified the areas which require further investigations, including the potential of CO 2 storage in concrete and the newly developed carbonate binders.

311 citations

Journal ArticleDOI
TL;DR: It has been shown that the method of cement application and the preparation of the cancellous surface significantly affects both the tensile and shear strengths of the cement-bone interface.
Abstract: The fixation of total joint components to bone using acrylic bone cement is by the penetration of the cement into the microstructure of cancellous bone to achieve a mechanical interlock. It has been shown that the method of cement application and the preparation of the cancellous surface significantly affects both the tensile and shear strengths of the cement-bone interface. Doughy cement finger-packed on an uncleaned surface resulted in a very low interface strength compared to a low-viscosity cement made to penetrate a cleaned bone surface. Maximum strengths were achieved for cancellous bone cleaned by using either a high-intensity water lavage or a polyethylene brush and by facilitating penetration of the cement for distances of 5 to 10 mm into the bone.

310 citations

Journal ArticleDOI
TL;DR: The main objective of as discussed by the authors is to investigate the possibility of utilizing waste marble dust (MD) in cement and concrete production, and the results of the study indicate that the use of marble dust in concrete production as cement replacement or as sand replacement gradually enhances both of the mechanical and physical properties of concrete especially with lower w/c ratio.

310 citations

Journal ArticleDOI
TL;DR: In this article, the authors used semi-adiabatic calorimeter tests on 13 different concrete mixtures and with heat of hydration data from 20 different cement types to provide a convenient, indirect means of characterizing the formation of hydrated products by measuring the heat released during hydration.
Abstract: Models are used to characterize the behavior of concrete exposed to in-place conditions. These models need to include methods to quantify the heat of hydration of cementitious materials. This article presents the formulation of a general hydration model for cementitious materials. The authors note that the degree of hydration characterizes the formation of hydration products as hydration progresses over time, and each concrete mixture has a unique degree of hydration development. The authors used semi-adiabatic calorimeter tests on 13 different concrete mixtures and with heat of hydration data from 20 different cement types to provide a convenient, indirect means of characterizing the formation of hydration products by measuring the heat released during hydration. Their hydration model incorporates the effect of following variables: cement chemical composition, cement fineness, supplementary cementing materials (Class F fly ash, Class C fly ash, and ground-granulated blast-furnace (GGBF) slag cement), mixture proportions, and concrete properties (density, thermal conductivity, and specific heat). The authors conclude that this model provides a reasonable and accurate representation of the heat of hydration development under different curing temperatures.

309 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20248
20234,852
20228,607
20213,442
20203,929
20194,260