Krzysztof Lejcuś - Academia.edu (original) (raw)
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Papers by Krzysztof Lejcuś
Acta Scientiarum Polonorum Hortorum Cultus, 2018
Acta Biologica Cracoviensia. Series Botanica. Supplement, 2014
Inżynieria Ekologiczna, 2007
Inżynieria Ekologiczna, 2007
Inżynieria Ekologiczna, 2007
Evaporation can be one of the main reasons of water loss from soil. Usually the second, excluding... more Evaporation can be one of the main reasons of water loss from soil. Usually the second, excluding evapotranspiration, is infiltration due to which water becomes unavailable to plants. Water absorbing geocomposite was designed to minimize water loss from soil and to provide water for plants during vegetation. It is built of a skeleton creating space for water absorbing superabsorbent (SAP). On the outside it is covered with geotextile, which acts as a separator and filter. It can be manufactured in a fully biodegradable version. It is a technology used to retain water in the soil, which is then available for plants. The paper presents the results of a simple experiment concerning water loss from two types of soils. The experiment was conducted in a thermal chamber with electronically controlled temperature. Two types of soils – sandy soil and loamy soil and two types of geocomposite were used. In the chamber flowerpots with and without geocomposite filled with sandy soil or with loam...
Materials
Superabsorbent polymers (SAPs) are used in agriculture and environmental engineering to increase ... more Superabsorbent polymers (SAPs) are used in agriculture and environmental engineering to increase soil water retention. Under such conditions, the swelling pressure of the SAP in soil affects water absorption by SAP, and soil structure. The paper presents the results of swelling pressure of three cross-linked copolymers of acrylamide and potassium acrylate mixed at the ratios of 0.3%, 0.5% and 1.0% with coarse sand and loamy sand. The highest values of swelling pressure were obtained for the 1% proportion, for coarse sand (79.53 kPa) and loamy sand (78.23 kPa). The time required to reach 90% of swelling pressure for each type of SAP differs. Samples of coarse sand mixed with SAP K2 in all concentrations reached 90% of total swelling pressure in 100 min, while the loamy sand mixtures needed only about 60 min. The results were the basis for developing a model for swelling pressure of the superabsorbent and soil mixtures, which is a fully stochastic model. The conducted research demonst...
Sustainable Materials and Technologies
Acta Scientiarum Polonorum Hortorum Cultus, 2018
Acta Biologica Cracoviensia. Series Botanica. Supplement, 2014
Inżynieria Ekologiczna, 2007
Inżynieria Ekologiczna, 2007
Inżynieria Ekologiczna, 2007
Evaporation can be one of the main reasons of water loss from soil. Usually the second, excluding... more Evaporation can be one of the main reasons of water loss from soil. Usually the second, excluding evapotranspiration, is infiltration due to which water becomes unavailable to plants. Water absorbing geocomposite was designed to minimize water loss from soil and to provide water for plants during vegetation. It is built of a skeleton creating space for water absorbing superabsorbent (SAP). On the outside it is covered with geotextile, which acts as a separator and filter. It can be manufactured in a fully biodegradable version. It is a technology used to retain water in the soil, which is then available for plants. The paper presents the results of a simple experiment concerning water loss from two types of soils. The experiment was conducted in a thermal chamber with electronically controlled temperature. Two types of soils – sandy soil and loamy soil and two types of geocomposite were used. In the chamber flowerpots with and without geocomposite filled with sandy soil or with loam...
Materials
Superabsorbent polymers (SAPs) are used in agriculture and environmental engineering to increase ... more Superabsorbent polymers (SAPs) are used in agriculture and environmental engineering to increase soil water retention. Under such conditions, the swelling pressure of the SAP in soil affects water absorption by SAP, and soil structure. The paper presents the results of swelling pressure of three cross-linked copolymers of acrylamide and potassium acrylate mixed at the ratios of 0.3%, 0.5% and 1.0% with coarse sand and loamy sand. The highest values of swelling pressure were obtained for the 1% proportion, for coarse sand (79.53 kPa) and loamy sand (78.23 kPa). The time required to reach 90% of swelling pressure for each type of SAP differs. Samples of coarse sand mixed with SAP K2 in all concentrations reached 90% of total swelling pressure in 100 min, while the loamy sand mixtures needed only about 60 min. The results were the basis for developing a model for swelling pressure of the superabsorbent and soil mixtures, which is a fully stochastic model. The conducted research demonst...
Sustainable Materials and Technologies