In this research (using induction furnace process) nodular iron with three different percentages of copper (residual, 0.5% and 1,2%) was obtained. Chemical analysis was performed by mass spectrometry and microstructures were characterized by Optical Microscopy (ASTM E3) and Scanning Electron Microscopy (SEM). The study of mechanical behavior was carried out in a mechanical test machine (ASTM E8...

The publication is devoted to the study of possibility using ash and slag waste from hydraulic removal fuel power plants in production building gypsum materials. These wastes are not used industrial due heterogeneity composition properties. This a big unresolved problem for many thermal plants. However, when separating individual parts - carbon, aluminosilicate or magnetite selected part compon...

In the context of development new lightweight materials, Al-alloyed cast irons have a great potential for reducing weight different part vehicles in transport industry. The correlation amount Al and its effect microstructure is not completely well established as it affected by many factors such chemical composition, cooling rate, etc. this work, four novel were developed with amounts (from 0 wt...

Research was carried out to evaluate composted olive-mill waste as a peat substitute in foliage potted plant production. Rooted cuttings of Codiaeum variegatum (L.) A. Juss and Syngonium podophyllum Schott were grown for 5 months and Ficus benjamina L. for 10 months in media containing olive-mill waste compost (OWC), sphagnum peat and perlite in 1:3:4, 1:1:2, and 3:1:4 ratio (by volume), respec...

Agricultural hydrogels improve water retention in a variety of substrates. However, little is known about their impact on herb cultivation rooftop farming. To identify the optimal substrate and hydrogel concentration for growth flowering spearmint ( Mentha spicata ) gardens, coir perlite were mixed three different ratios 80% to 20% (v/v; referred as C 4 P 1 ), 50% (C or ). Hydrogels added into ...

This paper wants to know the effect of bending radius on distribution hardness, grain and microstructure surface area tensile stress compressive after bending, quenching tempering. Material testing helps determine analyze material quality. The research was conducted Hot Rolled Plate Steel with a 50 mm, 55 60 65 mm 70 measurement distance 1 2 3 highest value obtained at mm. After getting quench-...

Traditionally, river sand was utilized as fine aggregate in concrete manufacturing. However, due to the ongoing extraction of natural sand, its availability has become limited. Construction businesses have begun explore for alternative sustainable resources use aggregate. Manufactured (M- sand), recycled aggregate, crushed granite, rice husk ash, fly and other materials can cause dumpsite envir...