| 摘要 |
PROBLEM TO BE SOLVED: To provide an execution method of weed-prevention, a method that can prevent weed from growing around planting as well as securing supply of moisture by rain water which is necessary for growth of planting, that makes sound growth of planting and natural landscape as a green space compatible, and that gives suitable mobility to grains in the installation work during the execution and prevents the grains from moving after the execution. ! SOLUTION: With sand 2 that passes through a 5 mm mesh as a target, asphalt 3 is mixed until the grains of the sand 2 are all covered with the asphalt 3 with a total weight rate of 3 wt%; thus, a water-repellent weed-preventing material 1 is used in which a mutually nonadhesive asphalt layer is formed around the grains of the sand 2. Then, a water-permeable sheet 4 is laid on the soil 5, with the weed-preventing material 1 laid on the sheet 4 in the thickness of the layer in which no seeds 7 of weeds germinate. ! COPYRIGHT: (C)2015,JPO&INPIT |
