globusjournal

Asphalt mixtures used for bituminous coatings consists of a homogeneous, compact mixture of natural aggregates agglomerated with bitumen. Replacing the natural filler with an artificial one, obtained as waste in the metallurgical industry, would lead to a saving of material and financial resources, being one of the methods of environmental conservation by conserving the relief, protecting localities from noise produced in stone quarries, reusing a waste material. The processing of granular blast furnace slag from Liberty Galati plant, country of Romania, into filler and their subsequent use in the preparation of asphalt mixtures, leads to obtaining favourable results on two of the most currently used types, AC16surf50/70 and AC22.4bin50/70.

The appreciation of the behaviour of the asphalt mixture prepared with blast furnace slag filler compared to a standard, leads to the conclusion that the mixture is correctly dimensioned and will withstand physical and mechanical factors.

Keywords: Asphalt Mixture, Blast Furnace Slag Filler.

Wastes that are not properly managed, especially liquid and solid waste from households and the community, are serious health hazards and lead to the spread of infectious diseases. Thus, the researcher formulated a solution to make them useful in order to minimize the excessive generation of waste. This study aims to develop a Precast Concrete Fence Panel made from recycled plastic bottles and rice hulls ash to be used for commercial and industrial sites, livestock backyards, landscapes, pools, and ports. Specifically, the appropriate proportion of materials in its fabrication was also determined. Its performance quality in terms of hardness, compressive strength, specific gravity and absorption was tested. Moreover, its acceptability in terms of performance, durability and reliability was likewise determined. This study adopted the developmental-descriptive method of research. The design and fabrication of the Precast Concrete Fence Panel resulted in a product that permits light and air-flow, has a pivotal post, stackable and with added green material. The performance quality of the Precast Concrete Fence Panel in terms of hardness, compressive strength, specific gravity and absorption is within the acceptable standard range for concrete. The performance, durability and reliability of the Precast Concrete Fence Panel were highly acceptable to the evaluators.

Keywords: Technology, Precast Concrete, Fence, Developmental-descriptive Method, Philippines.