Dairy cattle barns are a major source of NH3 emissions to the atmosphere. Previous studies have shown that the bedding material used in the barn can influence the magnitude of NH3 emissions, but little is known about which bedding characteristics are important in this respect. The aims of this study were to assess, at a laboratory scale, the relative importance of the chemical [pH, cation excha...

Abstract To develop material-recycling processes for used plastic products, it is necessary to design new techniques optimize the mechanical properties of recycled plastics since products are normally deteriorated. In this study, we suggest one approaches that a repelletizing treatment improving recycled-polyethylene moldings using twin-screw extruder. The results tensile test revealed signific...

Cold in-place recycling (CIR) is a cost-effective treatment for deteriorated pavements, and a recent FHWA policy statement recommends recycled materials be considered for all paving projects. A survey of 38 state departments of transportation by the Rocky Mountain User Producer Group found that many routinely use the technique, but there are some problems with performance reliability, specifica...

PURPOSE To search if the shear bond strengths of brackets would change after two different base-cleaning procedures such as sandblasting or carbide bur cleaning, and to determine if a previously bonded tooth surface had any effect on bond strength. MATERIALS AND METHODS A total of 120 new brackets were first bonded to 120 extracted premolars and then debonded and bond strength was recorded. T...

Cold in-place recycling (CIR) has become an attractive method for rehabilitating asphalt roads that have good subgrade support and are suffering distress related to nonstructural aging and cracking of the pavement layer. Although CIR is widely used, its use could be expanded if its performance were more predictable. Transportation officials have observed roads that were recycled under similar c...

The incidence of failure of embedded pipelines has increased in Korea due to the increasing applied load and the improper compaction of bedding and backfill materials. To overcome these problems, a prefabricated lightweight plastic foundation using recycled plastic was developed for sewer pipelines. A small scale laboratory chamber test and two field tests were conducted to verify its construct...

The influence that recycled low-density polyethylene (LDPE) and lithium thickener concentrations exerts on the thermal and rheological properties of lithium lubricating greases was investigated using different rheological techniques in a temperature range of 25–175◦C. In this way, different lubricating grease formulations were manufactured by modifying the concentration of lithium 12-hydroxyste...

The main strategy to reduce the environmental impact of the concrete industry is to reuse the waste materials. This research has considered the combination of cement replacement by industrial by-products, and natural coarse aggregate substitution by recycled aggregate. The aim is to evaluate the behavior of concretes with a reduced impact on the environment by replacing a 50% of cement by indus...

Green supply chain management, as a new area for research in the field of management, that plays a vital role in the development of a manufacturing sector across the world in general and India in particular. Recycled economy is a generic term for the activities of reduction, recycle and utilization of resources in the processes of production, circulation and consumption, etc. It centers on the ...

The present study was conducted to determine the recyclability and biodegradability of bamboo fabric-reinforced poly(lactic) acid (BF-PLA) composites for sustainable packaging. BF-PLA composite was recycled through the granulation, extrusion, pelletization and injection processes. Subsequently, mechanical properties (tensile, flexural and impact strength), thermal stability and the morphologica...