Results 121 to 130 of about 81,897 (314)

Fracture of the Passive Film on Reinforcing Steel in Concrete Under Mechanical Loading

open access: yesMaterials and Corrosion, EarlyView.
Bending load induces a flexural crack in reinforced concrete specimen. Above the critical load inducing crack, a macro cell corrosion current is recorded by steel coupons embedded in the concrete. The macro cell current corresponds to the rupture of the passive film. ABSTRACT This study investigates the fracture of the passive film on reinforcing steel
Lucas Hess   +3 more
wiley   +1 more source

Analysis of glass fiber reinforced cement (GRC) fracture surfaces

open access: yes, 2010
Glass fiber reinforced cement (GRC) is a composite material produced by the union of a cement mortar matrix and chopped glass fibers. Its good mechanical properties deteriorate with time. This phenomenon has been studied performing a tensile test program
Cendón Franco, David Ángel   +3 more
core   +1 more source

Study of Compressive Strength of Concrete with Coal Power Plant Fly Ash as Partial Replacement of Cement and Fine Aggregate [PDF]

open access: yesMehran University Research Journal of Engineering and Technology, 2010
This research study comprises of concrete cubes made with Ordinary Portland Cement and with different configurations of fly ash by replacing cement and fine aggregate. To achieve the aim of this study, total 81 concrete cubes were cast. Among 81 cubes, 9
FAREED AHMED MEMON   +2 more
doaj  

Anisotropic Initial Damage and Its Effect on Tensile Response of Plain Concrete

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Damage is often described as isotropic, implying that a scalar value describes its initial state. However, the prior micro‐cracking pattern at points of an existing building, that is, the initial damage, may be oriented by a preload. The degradation of the Volume Element due to oriented preloads shall be described as anisotropic and ...
A. Fau   +3 more
wiley   +1 more source

An Integrated Study of Pervious Concrete Mixture Design for Wearing Course Applications, July 2011

open access: yes, 2011
This report presents the results of the largest and most comprehensive study to date on portland cement pervious concrete (PCPC). It is designed to be widely accessible and easily applied by designers, producers, contractors, and owners. The project was

core  

Polymaterial Lattice Discrete Particle Model for the Optimization of Lightweight Aggregate Concrete: Intragranular Fracture and Compression Behavior

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Lightweight aggregate concrete (LWAC) offers clear advantages for sustainable construction, including reduced density and improved thermal insulation. However, its mechanical and fracture behavior is difficult to characterize due to the heterogeneity and brittle crushing of porous lightweight aggregates.
Yuhui Lyu   +7 more
wiley   +1 more source

Cement and concrete [PDF]

open access: yesMaterials Science and Technology, 1987
openaire   +2 more sources

Implications of heterogeneous embankment conditions for geoelectrical investigations on dams: A case study at Mactaquac Dam, Canada

open access: yesNear Surface Geophysics, EarlyView.
Abstract Electrical resistivity tomography (ERT) has been shown to be effective for surveying and monitoring dams, due to the method's sensitivity to moisture content and relevant physical properties (e.g., porosity). Automated ERT systems, capable of time‐lapse monitoring, can be used to detect variations in ground conditions.
John S. Ball   +4 more
wiley   +1 more source

Bacterial crack repair to concrete

open access: yes, 2015
This study has demonstrated the potential S. pasteurii and consequently MICP holds in improving the integrity of finish to concrete, without the use of chemical based sealants.
Richardson, Alan, Pasley, Jack
core  

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