The chemical content of water pH, mineralization, alkalinity, hardness, calcium and magnesium compounds, carbon dioxide free provide guidance about buffering capacity of water. Therefore, if the mineralization and pH is low, the water is aggressive towards the materials used in manufacturing pipes concrete, steel, HDPE, PVC, PAX. If the mineralization is high, the pH is high, too and the water ...

Abstract One of the major challenges faced by water companies around world is high level chlorine losses in distribution networks. This paper presents an experimental study to examine loss different types pipe materials and select ones with low demand for rehabilitation network San Pedro Nexapa, State Mexico. The investigated include: polyvinyl chloride (PVC), galvanized steel (GS), polypropyle...

High-density polyethylene (HDPE) pipe is one of the materials interest for use in road drainage systems. The combination ultraviolet (UV) light, temperature, and moisture can produce weak spots lead to degradation during storage, installation, repair process. objective this study was evaluate changes chemical, morphological structure, thermomechanical properties recycled virgin pipes under UV e...

Disposing of plastic wastes to landfill is becoming undesirable due to legislation pressures, rising costs and the poor biodegradability of commonly used polymers. In addition, incineration meets with strong societal opposition. Therefore, recycling either mechanical or chemical, seems to be the only route of plastic wastes management towards sustainability. Polyolefins, mainly polyethylene (LD...

The use of wood-derived fillers by the thermoplastic industry has been growing, fueled in part by the use of wood-fiber– thermoplastic composites by the construction industry. As a result, the durability of wood-fiber–thermoplastic composites after ultraviolet exposure has become a concern. Samples of 100% high-density polyethylene (HDPE) and HDPE filled with 50% woodflour (WF) were weathered i...

Thermal behaviors of eucalyptus wood residue (EWR) filled recycled high density polyethylene (HDPE) composites have been measured applying the thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Morphology of the materials was also studied using scanning electron microscope (SEM). Addition of the EWR into the recycled HDPE matrix reduced the starting of degradation tem...