20201114: Marshall University Plane Crash 50th Anniversary Materials, 2020

These items include materials from various sources, including Memorial Fountain Ceremony Booklets, Marshall Football Memorial Rededication Ceremony Programs, Posthumous Degree Ceremony Booklets, newspaper articles from The Herald Dispatch, Albany Times Union articles, and The Parthenon. This is not an exhaustive list, please download the inventory for a full list of material contents

Health service procurement policy / Healthcare Materials Management Board

DOHC / 200

The electrodeposition and characterisation of compositionally modulated tin-cobalt alloy coatings as lead-free plain bearing material

Traditionally, lead-based bearing overlays dominate the commercial automotive market and it has been proven that an excellent combination of properties can be attained through their use. However, lead is a toxic metal and a cumulative poison in humans. According to the European Union End-of-Life Vehicle (ELV) Directive proposed in 1997, vehicles that registered in'all the member states after 1st July 2003 should contain no lead, mercury, cadmium and hexavalent chromium. In this study, a new sulphate-gluconate electrolyte was used to produce multilayer SnCo coatings, aimed at a lead-free overlay for future market use. Tin-cobalt compositionally modulated alloy (CMA) coatings produced from sulphategluconate electrolytes have been previously examined as a potential replacement for lead-free bearing overlays [1]. However, some obstacles may exist which limit their potential use on an industrial scale. For example, long electroplating times are required to produce a thick coating which is very undesirable from an industrial viewpoint, and also the possible elemental interdiffusion occurring in the coating system under engine operating temperatures could rapidly deteriorate the coating properties. In addition, there is an increasing demand from automotive industry to further improve bearing overlay properties, for example for high performance and high compression ratio engines... cont'd

Pyrolysis Of Lignin-Rich Biomass For Renewable Aromatics

Currently, several national projects are conducted as an activity along the thermochemical horizon towards functionalized aromatics from lignin and lignin-rich biomass sources in the framework of the BIORIZON shared research center in the south of the Netherlands [1]. Regarding the pyrolytic valorization of lignin-rich biomass towards aromatic chemicals for various applications, it is thought that the collection of pyrolysis vapors in separate fractions [2] offers interesting opportunities for valorization, e.g. towards (additives for) bitumen, resins, rubber and specific marine biofuels. For these high market volume – medium market value products, earlier work has revealed that the application of lignin as such (so without derivatization / modification) was not successful because of various incompatibilities. Consequently, it was deduced that specific depolymerized fractions from lignin-rich residues would possibly be usable because of lower molecular weight and/or higher reactivity and/or better miscibility with their petrochemical counterparts. Please click Additional Files below to see the full abstract

Interim Report on Experiments with Western Kentucky Bank Gravel in Bituminous Concrete

Experiments with Western Kentucky Bank Gravel as an aggregate in bituminous concrete were started in 1944 with a reconstruction project on the Paducah-Smithland Road (R.P. 32-1 SA & R.P. 32-l-SB), U.S. 60 & U.S. 68, in NcCracken County. Eight sections containing four different bituminous materials two different thicknesses of binder course, and variations in the surface course only with regard to a single grade of bitumen applied to Sections 5 to 8 inclusive, were provided in the plans. The pavement was inspected and photographs were taken in May, 1946, but no formal report was made on the experiment at that time. Another annual inspection was made on June 10 and ll of this year, and photographs as well as samples cut from the bituminous pavement in solid sections were taken as evidence of the condition of the project at this stage. Attempts were made to obtain cores for stability tests, but this proved impossible with the equipment available. All results of the inspection, sampling, and testing of materials from this project will be included in a later report on experimental bituminous test roads in different parts of the state; for the present, this report is made as a means of showing differences or similarities between Sections 1 and 5 of this project-- the two sections containing MC-5 in the bank gravel binder course

A Survey and Pedological Classification of Kentucky Soils

At the meeting of the Highway Research Board in Oklahoma City this year the Department of Soils Investigations devoted the major part of one session to a discussion of the pedological method of classifying soils. This was marked departure from past policies for heretofore pedology in soil classification was largely a matter for research, and incidentally, a controversial matter

Bituminous Construction with Sandstone Aggregate Johnson County Project

On April 25th detailed notes wore made on each station of this project, and it was decided that samples should be taken to represent each type of surface on the project. Seventeen samples ware selected as representative of the different types of mixes, and on May 6th and 7th samples fifteen inches in diameter were drilled from this project. These samples were selected to represent the variations in gradings and bitumen content

Proposed Working Plan for a Study of the Properties of Coarse Aggregates

Among the numerous materials used in the construction of highways probably none is more important or perplexing than coarse aggregate. Through past research and experience a group of procedures and specifications for selecting aggregates suitable for pavements has been developed. These acceptance tests deal almost entirely with physical properties such as gradation, soundness, absorption, abrasion, etc. However, recent data accumulated by field observations and surveys (1), (7), (8)* have indicated that some materials passing the specifications have undesirable properties which cause difficulties over a long period of time. Consequently, research directed toward a more thorough investigation of aggregates has become importunate

An Experiment with Expanded-Metal Integrating Mats In Bituminous Concrete Pavement

This is an initial report of an experiment dealing with the use of expanded metal mats placed between the binder and surface courses of a Class I bituminous pavement at a location where a bituminous pavement of different design had shoved under heavy traffic. The purpose of the mats, of course, was to integrate the pavement in both longitudinal and transverse directions; the theory being that a small portion of the pavement, when subjected to a force that would ordinarily cause shoving, could actuelly shove only if an entire section of the embedded mat could be moved by that force. The purpose of the experiment, then, is to determine whether a group of such mats of certain design and placed in a certain way will provide extraordinary stability and prevent displacement of the bituminous pavement