摘要:
The invention relates to a non-woven textile fabric of one or a combination of wool, hemp, cotton, cellulose and or other natural fibres, treated with a natural water proofing and fungicide solution for planter bags and pots. The planter bag or pot fabric enables superior air pruning of the plant roots. The bag or pot can be directly planted into the ground with the plant and biodegrades.
摘要:
Sediment-control fences designed to withstand hydrostatic forces associated with elevated backwater against the fence are disclosed. The fences are made of anisotropic fabric having different mechanical properties such as strength and stiffness in the machine direction versus the transverse direction. The anisotropic fabric may include fibrillated yarns in one direction and monofilaments in another direction. The sediment-control fences may be used without the necessity of wire or chain-link backed supports that are conventionally used to resist structural failure due to hydraulic overtopping of the fences.
摘要:
A knitted geotextile includes a plurality of first strength yarns arranged in a first layer, each of the plurality of first strength yarns extending in a first direction, a plurality of second strength yarns arranged in a second layer, each of the plurality of second strength yarns extending in a second direction, a plurality of capillary active yarns arranged in at least one of the first layer or the second layer, and a plurality of knitting yarns interconnecting the plurality of first strength yarns, the plurality of second strength yarns, and the plurality of capillary active yarns.
摘要:
Described herein is woven geotextile formed of a plain six-pick weave fabric having an apparent opening size (AOS) of at least 40 as measured in accordance with ASTM International Standard D4751, a water flow rate of at least 35 gpm/ft2 as measured in accordance with ASTM International Standard D4491, a 12% strain at a tensile load of at least 300 lb/in as measured in accordance with ASTM International Standard D4595 in the warp direction, and a 12% strain at a tensile load of at least 270 lb/in in accordance with ASTM International D4595 at 270 lb/in in the fill direction. Also described herein is a reinforced civil structure having a subgrade formed at least partially of soil; a base course; and a woven geotextile disposed between the subgrade and the base course.
摘要:
A pyramidal geotextile fabric comprising two sets of multi-lobe filament yarns interwoven in substantially perpendicular direction to each other, each of the multi-lobe filament yarns having pre-determined, different heat shrinkage characteristics such that, upon heating, the fabric forms a three-dimensional, cuspated profile. A method of stabilizing soil and reinforcing vegetation comprises the steps of placing a three-dimensional, high-profile woven fabric into soil, wherein the fabric comprises two sets of multi-lobe filament yarns interwoven in substantially perpendicular direction to each other, each of the multi-lobe filament yarns having pre-determined, different heat shrinkage characteristics such that, upon heating, the fabric forms a three-dimensional, cuspated profile; securing the fabric to the ground; and, distributing soil and seed onto the fabric such that the section of ground is quickly revegetated and thereby protected from further erosion.
摘要:
A reinforcement element, comprises at least one sensor fiber adapted for strain measurements based on stimulated Brillouin scattering within said sensor fiber. Furthermore, a system for monitoring strain within a structure comprises a reinforcement element comprising at least one sensor fiber adapted for strain measurements based on stimulated Brillouin scattering within said sensor fiber, a pump laser for coupling in laser radiation of a pump frequency into said at least one sensor fiber, a Stokes laser for coupling in laser radiation of a Stokes laser radiation into said at least one sensor fiber, wherein the pump frequency and the Stokes frequency are different from one another and wherein the frequency difference between the pump and Stokes frequencies is within the range of acoustical phonons within said sensor fiber, a sensor adapted to obtain a stimulated Brillouin backscattering signal, and a network analyzer adapted for determining the complex transfer function of the sensor fiber to determine a spatially resolved strain measurement.
摘要:
A pyramidal geotextile fabric comprising two sets of multi-lobe filament yarns interwoven in substantially perpendicular direction to each other, each of the multi-lobe filament yarns having pre-determined, different heat shrinkage characteristics such that, upon heating, the fabric forms a three-dimensional, cuspated profile. A method of stabilizing soil and reinforcing vegetation comprises the steps of placing a three-dimensional, high-profile woven fabric into soil, wherein the fabric comprises two sets of multi-lobe filament yarns interwoven in substantially perpendicular direction to each other, each of the multi-lobe filament yarns having pre-determined, different heat shrinkage characteristics such that, upon heating, the fabric forms a three-dimensional, cuspated profile; securing the fabric to the ground; and, distributing soil and seed onto the fabric such that the section of ground is quickly revegetated and thereby protected from further erosion.
摘要:
The present invention is directed to a geosynthetic wicking fabric for transporting water from beneath pavement structures to reduce or prevent damaged caused by frost heave and thaw. Further, the present invention is directed to a wicking drainage system employing the wicking fabric.
摘要:
A bi-layer, woven geotextile fabric has interwoven first and second layers. The first layer is over and under woven through the second layer in a pre-determined pattern so that the first layer has portions which face a first side of the second layer and portions which face a second side of the second layer. Monofilaments in the warp direction of the first layer have a pre-determined differential heat shrinkage characteristic that is greater than the monofilaments in the warp direction of the second layer. Closed cells defined by the pattern of the over and under weave are disposed on the first and second sides of the second layer. Shrinkage of the monofilaments in the warp direction of the first layer provide for a separation of a portion of the second layer from the first layer at the cells.
摘要:
A composite geotextile or construction product for reinforcing a stratum of concrete or of bitumen comprises at least one reinforcing grid consisting of yarns which are mechanically strong in the warp and/or weft directions. It further comprises at least one layer of an openwork textile produced by weaving or knitting, the openwork textile having openings that are smaller than those of the meshes of the grid, the openwork textile being knitted with the grid by means of at least one knitting yarn, in order to obtain a substantial miscibility of the concrete or the bitumen in the composite textile product.