Results 1 to 10 of about 34,805 (300)

Corrosion of steel in concrete due to one and two dimensional chloride ingress

MATEC Web of Conferences, 2018
This paper presents results of an ongoing research of the effect of 1D and 2D chloride ingress on concrete resistivity and corrosion rate of steel reinforcement.
Zakka Ze Gyang, Otieno Mike
doaj   +1 more source

GPR Raw-Data Order Statistic Filtering and Split-Spectrum Processing to Detect Moisture

Remote Sensing, 2014
Considerable research into the area of bridge health monitoring has been undertaken; however, information is still lacking on the effects of certain defects, such as moisture ingress, on the results of ground penetrating radar (GPR) surveying.
Gokhan Kilic
doaj   +1 more source

Epidemiology of Diagnosed Age-related Macular Degeneration in Germany: An Evaluation of the Prevalence Using AOK PLUS Claims Data

Ophthalmology and Therapy
Introduction Epidemiologic data on age-related macular degeneration (AMD) are mainly based on cohort studies, including both diagnosed and undiagnosed cases.
Alexander K. Schuster, Lilia Leisle, Nils Picker, Hanne Bubendorfer-Vorwerk, Philip Lewis, Philipp Hahn, Jürgen Wasem, Robert P. Finger   +7 more
doaj   +1 more source

Chloride ingress in de-icing salt-exposed bridge: Numerical modeling and field investigations

Case Studies in Construction Materials
This research focuses on assessing the durability of various components of an onshore section of the Original Champlain Bridge in Montreal, specifically in relation to chloride ingress from de-icing salting operations.
Samaneh Khani, David Conciatori, Luc Chouinard, Benoit Fournier, Mohammad Khaleghi Esfahani, Abdoul S. Bah, Xuande Chen   +6 more
doaj   +1 more source

Mechanical Performance and Chloride Diffusivity of Cracked RC Specimens Exposed to Freeze-Thaw Cycles and Intermittent Immersion in Seawater

Advances in Materials Science and Engineering, 2016
The effects of crack width on chloride ingress and mechanical behavior of reinforced concrete (RC) specimens were experimentally studied after exposure to 300 cycles of freeze-thaw and seawater immersion (75 times).
Bei Shen, Yinghua Ye, Bo Diao, Xiaoning Zheng   +3 more
doaj   +1 more source

The effect of hydrophobic (silane) treatment on concrete durability characteristics

MATEC Web of Conferences, 2018
Hydrophobic (silane) impregnation represents a cost-effective way to increase the durability of concrete structures in cases where insufficient design cover quality and depth have been achieved.
Sohawon Haris, Beushausen Hans
doaj   +1 more source

Efficiency of self-healing cementitious materials with encapsulated polyurethane to reduce water ingress through cracks

Materiales de Construccion, 2018
Cracks in reinforced concrete elements can cause major durability issues due do the accelerated ingress of aggressive substances. In this study, repair of cracks was addressed by incorporating encapsulated polyurethane based healing agents in the ...
B. Van Belleghem, K. Van Tittelboom, N. De Belie   +2 more
doaj   +1 more source

Phenomenology of Graphite Burning in Air Ingress Accidents of HTRs

Science and Technology of Nuclear Installations, 2011
Air ingress with graphite burning belongs to the accident scenarios in HTRs with potentially severe consequences. This paper gives an overview of basic phenomena of graphite burning like ignition conditions and moving reaction fronts.
Rainer Moormann
doaj   +1 more source

Study on the Smoke Control Performance of Air Curtains in Emergency Stairwells of Multi-Unit Residential Buildings

Applied Sciences
Recently, in high-rise buildings, pressurization systems have been installed in emergency stairwells to prevent the ingress of smoke. However, in older buildings, these stairwells often lack pressurization systems, while in buildings with fewer stories ...
Kisung Kim, Dongwoo Song
doaj   +1 more source

Effect of cracking and randomness of inputs on corrosion initiation of reinforced concrete bridge decks exposed to chlorides

Fracture and Structural Integrity, 2016
The paper is aimed at the indicative evaluation of the effect of random scatter of input parameters in case of durability of reinforced concrete bridge deck.
P. Konecny, P. Lehner
doaj