| Title |
Evaluation of the Roof Resistance of Water Proof Membrane and Development of Apparatus for Measuring Penetrating Force Rhizomes and Root Tips, and Some Measured Force on Bamboo Grass and Lawn Grass |
| Keywords |
Waterproofing Membrane ; Root Penetration ; Rhizome ; Penetrating Force ; Bamboo Grass ; Lawn Grass |
| Abstract |
The resistance of membranes to root penetration is also important for green roof as well as the other performances for waterproofing. For suitably estimate membranes for this purpose, the actual penetrating force of roots or rhizomes tips of plants to membranes has to make clear. Using the inherent nature of them seeking and growing for moisture, the apparatus for measuring penetrating force was developed. Penetrating forces of bamboo grass and lawn grass were measured from spring to summer. They increased in a few weeks with periodically swinging in day and night, and the maximum forces of 9.8N and 6N were observed respectively. |