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Articles 1 - 4 of 4
Full-Text Articles in Engineering Science and Materials
Investigation Of Best Practices For Maintenance Of Concrete Bridge Railings, Angel Luis Lence
Investigation Of Best Practices For Maintenance Of Concrete Bridge Railings, Angel Luis Lence
LSU Master's Theses
Biodeterioration on concrete surfaces of vertical elements of bridges represents a serious challenge to the highway infrastructure in Louisiana. This investigation aims to document the causes of biodeterioration of concrete surfaces and to document current conventional and state-of-the-art practices implemented to prevent and clean biofilm. A comprehensive literature review of previous research has been carried out in order to determine the cause and mechanisms of the biodeterioration as well as to identify current methods that state DOTs have implemented in order to maintain their bridges and allow them to function in optimal structural and performance conditions. A survey was developed …
Design Flood Elevations Beyond Code Requirements And Current Best Practices, Frank H. Bohn
Design Flood Elevations Beyond Code Requirements And Current Best Practices, Frank H. Bohn
LSU Master's Theses
In the United States, nearly 9 million people, 3.0% of the population, live in areas subject to the 1% annual chance (100-yr) coastal flood hazard. New construction and substantial improvements in coastal high hazard areas require structures to be elevated above the design flood elevation (DFE), without the use of fill (Bellomo et al. 1999). Building code requirements for flood elevation are linked to the National Flood Insurance Program (NFIP) insurance policies, and represent the minimum requirement for building elevation. Current elevation procedures are limited to the 100-year base flood elevation with minimal guidance beyond the 100-year elevation in many …
Variability And Characteristics Of Recycled Asphalt Shingles Sampled From Different Sources, Aaron Lodge
Variability And Characteristics Of Recycled Asphalt Shingles Sampled From Different Sources, Aaron Lodge
LSU Master's Theses
Recent literature studies have demonstrated depletion in natural resources; therefore, making resources needed for the pavement industry is more costly. There is a need to minimize cost and to try to reduce the depletion of natural resources. While the recycling of asphalt shingles is beneficial in reducing the consumption of virgin materials, pavement performance should not be compromised. One major concern with recycled asphalt shingles (RAS) relates to the variability in the properties of the recycled materials originating from different sources. In addition, the rheological properties of RAS have not been evaluated as well as its influence on the virgin …
Controversy Trend Detection In Social Media, Rajshekhar Vishwanath Chimmalgi
Controversy Trend Detection In Social Media, Rajshekhar Vishwanath Chimmalgi
LSU Master's Theses
In this research, we focus on the early prediction of whether topics are likely to generate significant controversy (in the form of social media such as comments, blogs, etc.). Controversy trend detection is important to companies, governments, national security agencies, and marketing groups because it can be used to identify which issues the public is having problems with and develop strategies to remedy them. For example, companies can monitor their press release to find out how the public is reacting and to decide if any additional public relations action is required, social media moderators can moderate discussions if the discussions …