Vibratory Roller Evaluation

In a field evaluation of vibratory rollers, an end-result specification based on a statistical analysis of densities obtained on previous construction projects indicated 98 percent of laboratory density (Marshall) to be desired for Bituminous Concrete, Class I Base. The minimum average of 5 density tests was set at 96.4 percent. Conventional rollers, vibratory rollers, and combinations thereof were qualified on the basis of density-growth curves determined on one or more 1000-foot test sections. An overall average compaction of 97.8 percent of Marshall density was obtained on the Cumberland Parkway project. Similar controls initiated on the Green River Parkway project were discontinued

Tartan Surfacing for an Equestrian Overpass

The location of I 64 in Jefferson County traverses Seneca Park, noted for its scenic beauty and superior recreational facilities. A bridle path in Seneca Park necessitated construction of an overpass for equine traffic. A non-slip and sound-deadening, resilient surface was essential for aesthetics and safety. Tartan, a rubbery mat developed primarily for race course and paddock surfaces, was specified and installed on the overpass

Sprinkle-Treated Asphaltic Concrete Surface Course

This report gives details of construction and some skid resistance data from experimental sprinkle-treatment placed in Nelson County, Kentucky, north of Bardstown, US 31-E. The various types of aggregate, application rates, and precoating processes are reported

Hot-Mix Coal-Tar Concrete Pavement

The principle objectives of this research were: To compare the economics and performance of coal tar to asphalt cement; To develop reliable coal-tar construction specifications; To familiarize personnel with coal-tar construction; and To implement Section 201, Subsection d and e, of the Appalachian Regional Development Act of 1965. To accomplish these objectives, a 6.6-mile experimental section utilizing coal-tar (RT-12) concrete base and surface and 5.1-mile and 5.7-mile control sections utilizing asphalt (PAC-5) concrete base and surface were placed on relocated KY 15 in Perry, Knott, and Letcher Counties during the 1969 and 1970 construction seasons. The pavement consisted of an 11-inch DGA base, two 2 1/2-inch Class I base courses, and a 1 1/2-inch Class I, Type A surface course. The coal tar was supplied by the Barrett Division of Allied Chemical Corporation. This report covers the Research Division\u27s task of writing the special provision for the coaltar concrete, surveillance of the construction, laboratory evaluation of the paving materials, and analysis of the comparative performance of the experimental and control sections

Aggregate Shape and Skid Resistance

Natural sands and sands manufactured by crushing larger parent materials are characterized and service tested. Singular attributes are usually confounded with other variables in service tests. Dry-bulking tests and photomicrography are used to established qualities. High-stability porous mixtures are achieved in laboratory tests. Crushing some materials to coarse chip sizes leaves many smooth facets on particles that then tend to become oriented horizontally in the pavement surface. Open-graded friction courses and sprinkle treatments are included. Damage by winter freezing of porous courses is illustrated

Preparing Teachers with Core Content Expertise to Support Students with Moderate to Severe Disabilities

In this paper, the authors describe a teacher preparation program in the area of moderate to severe disabilities with an emphasis in academic instruction. They present a rationale for their increased focus on academics, a description of the program’s design, and several challenges associated with its implementation. Further, they offer several considerations for iterative improvement of the program

[Review of "Spiritual economies: Islam, globalization and the afterlife of development" by Daromir Rudnyckyj]

Permission to include this article granted by the editors of AnthropologicaBook reviewYe

Environmental change or choice during early rearing improves behavioural adaptability in laying hen chicks

Laying hens are typically moved to a novel environment after rearing, requiring adaptability to cope with change. We hypothesized that the standard rearing of laying hen chicks, in non-changing environments with limited choices (a single variant of each resource), impairs their ability to learn new routines, use new equipment and exploit new resources. On the contrary, rearing in a changing environment that also offers a choice of resource variants could better prepare chicks for the unexpected. To explore this hypothesis, environmental change and choice were manipulated in a 2 x 2 factorial experiment. Compared to standard rearing, greater change during early rearing, through repeatedly swapping litter and perch types, reduced initial freezing when exposed to a novel environment suggesting a lower fear response. Greater choice during rearing, through simultaneous access to multiple litter and perch types, resulted in shorter latencies to solve a detour task, more movement in novel environments and less spatial clustering, suggesting improved spatial skills and higher exploration. However, combining both change and choice did not generally result in greater improvement relative to providing one or the other alone. We conclude that environmental change and choice during rearing have different positive but non-synergistic effects on later adaptability potential

Rituals of rule in the administered community: the Javanese slametan reconsidered

Sherpa Romeo green journal. Permission to archive accepted author manuscript.Ethnographic work in an urban kampung in central Java reveals this community form to be both an administrative rationality and a set of locally meaningful social relations. The continued restatement of the relevance of community through the Javanese ritual meal known as the slametan and women’s roles in these rituals of commensality are the focus of this consideration. State sponsorship of housewives as community welfare workers extends the long arch of kampung community formation as the ground for the dispersion of rituals of rule into the lives of Indonesian citizens as well as working-class recuperation through rituals of community. State formation conceived as process draws attention to everyday kampung culture as the matrix for reproduction of both rule and working class neighbourhoods, and provides a perspective on the state that is resolutely low, attuned to both the realities of institutional structure and the repertoires and routines of everyday practise.Ye