Results 11 to 20 of about 315,352 (293)

Mechanical stress induced electrical emissions in cement based materials [PDF]

open access: yes, 2009
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This work deals with the underlying physical mechanisms and processes that dominate the fracture of cement based materials and their electrical properties ...
Kyriazopoulos, Antonios
core   +7 more sources

Influences of Carbonated Recycled Concrete Fines on Cement Hydration

open access: yesBuildings, 2023
The preparation of recycled concrete aggregate generates a lot of fines, which are obstacles for implementing the recycled concrete aggregate. In this work, carbonation treatment is applied to improve the properties of recycled concrete fine, and the ...
Jiake Zhang   +3 more
doaj   +1 more source

The microstructure of synthetic aggregate produced from waste materials and its influence on the properties of concrete [PDF]

open access: yes, 2007
This thesis examines the influence of the firing conditions on the properties and microstructure of synthetic aggregate produced using granite quarry fine waste blended with low grade ball clay as the binder. The investigation involved the use of various
Hemavibool, Saranagon
core   +7 more sources

A micromechanical four-phase model to predict the compressive failure surface of cement concrete [PDF]

open access: yesFracture and Structural Integrity, 2014
In this work, a micromechanical model is used in order to predict the failure surface of cement concrete subject to multi-axial compression. In the adopted model, the concrete material is schematised as a composite with the following constituents: coarse
A. Caporale, R. Luciano
doaj   +2 more sources

An Efficient Approach of Predicting the Elastic Property of Hydrating Cement Paste

open access: yesFrontiers in Materials, 2021
Although elastic properties of hydrating cement paste are crucial in concrete engineering practice, there are only a few widely available models for engineers to predict the elastic behavior of hydrating cement paste.
Baoyu Ma   +7 more
doaj   +1 more source

Multiscale poromechanics of wet cement paste [PDF]

open access: yesProceedings of the National Academy of Sciences, 2019
Significance Capillary effects in cement paste are associated with multiple degradation mechanisms. Using a framework, we investigated the role of capillary forces in cement paste under partial saturation from the nanograins level to the mesoscale. We show that the largest capillary forces concentrate at the boundary between gel pores
Tingtao Zhou   +4 more
openaire   +4 more sources

The relationship between the compressive strength of cement mortar and the chemical composition and fineness of cement [PDF]

open access: yes, 1993
Includes bibliography.The purpose of this research was to determine a method whereby predictions of compressive strength could be made with regard to the chemical composition and fineness of Portland cement.
James, S D
core   +3 more sources

Rheological properties of calcium carbonate self-setting injectable paste [PDF]

open access: yes, 2010
With the development of minimally invasive surgical techniques, there is growing interest in the research and development of injectable biomaterials with controlled rheological properties.
Auzély-Velty, Rachel   +8 more
core   +1 more source

The Effect of Effective Microorganism (EM) Inclusion to the Setting Time of Microbed Cement Paste

open access: yesMATEC Web of Conferences, 2017
The inclusion of Effective Microorganism (EM) lengthen the setting time of microbed cement paste with respect to the control cement paste. However, the investigation on the influence of EM ingredients to the setting time was not performed yet in the ...
Ismail Noorli   +3 more
doaj   +1 more source

Study on the Effects of Ultrasonic Agitation on CO2 Adsorption Efficiency Improvement of Cement Paste

open access: yesApplied Sciences, 2021
To realize high-efficiency CO2 absorption by fresh cement paste, ultrasonic vibration technology is introduced into the CO2 absorption test device used in this study. Influences of ultrasonic frequency on the CO2 absorption rate (CO2 AR) and the ultimate
Lili Liu   +4 more
doaj   +1 more source

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