Tensile Strength of Geogrid: Difference between revisions
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=Uniaxial vs Woven= | |||
Example - https://www.convertunits.com/from/kN/m/to/lb/ft - Menards Uniaxial - [https://sp.menardc.com/main/items/media/MWBLK001/Prod_Tech_Spec/Tech_Specs-179-6003-3XT-GeoGrid.pdf] | *kN/m - measured force per width of material. | ||
*Example - https://www.convertunits.com/from/kN/m/to/lb/ft - Menards Uniaxial - [https://sp.menardc.com/main/items/media/MWBLK001/Prod_Tech_Spec/Tech_Specs-179-6003-3XT-GeoGrid.pdf]. | |||
**In this example, we have 3600 lb/ft tensile strenght for uniaxial. If 5.6 oz fabric is about 250 lb grab tensile, that makes it about 1500-3000 lb/ft, probably around 2500 lb/ft. Ton per foot! Good. Not much worse than uniaxial, at 1/3 the cost. | |||
=Grab Tensile Strength= | |||
*A 2 square inch piece of the fabric is grabbed with each 2 sq in jaw, in the middle of the fabric. [https://www.instron.com/en/testing-solutions/astm-standards/astm-d4632#:~:text=The%20grab%20test%20is%20a,additional%20strength%20of%20adjacent%20material.] | |||
*Thus, it is effectively comparable to grabbing a small section, so the real tensile strength will be many factors of this if you use a full width. Effectively, the max distance that adjoining fibers help is only up to 4", since the test is done on a 4x8 piece of material. | |||
*Thus, every 4", the material has at least the grab tensile strength, and likely close to 4x more. Strip tensile is not much lower than grab tensile strenght - [https://www.galecommercial.com/en_na/articles/what-is-the-difference-between-the-tensile-testing-methods#:~:text=The%20variation%20is%20due%20mainly,proportional%20effect%20of%20the%20sample]. | |||
=Shopping= | =Shopping= | ||
*Uniaxial geogrid - [https://www.menards.com/main/building-materials/landscaping-materials/retaining-wall-block/6-x-150-geogrid/sf35/p-1444441458354-c-5787.htm#:~:text=This%20geogrid%20is%20uniaxial%2C%20meaning,Made%20in%20the%20U.S.A.&text=No%20Cut%20Projects-,Used%20in%20soil%20reinforcement%20applications%20such%20as%20retaining%20walls%2C%20slopes,%2C%20and%20sub%2Dgrade%20stabilization.] | *Uniaxial geogrid - [https://www.menards.com/main/building-materials/landscaping-materials/retaining-wall-block/6-x-150-geogrid/sf35/p-1444441458354-c-5787.htm#:~:text=This%20geogrid%20is%20uniaxial%2C%20meaning,Made%20in%20the%20U.S.A.&text=No%20Cut%20Projects-,Used%20in%20soil%20reinforcement%20applications%20such%20as%20retaining%20walls%2C%20slopes,%2C%20and%20sub%2Dgrade%20stabilization.] | ||
Latest revision as of 01:33, 28 October 2023
Uniaxial vs Woven
- kN/m - measured force per width of material.
- Example - https://www.convertunits.com/from/kN/m/to/lb/ft - Menards Uniaxial - [1].
- In this example, we have 3600 lb/ft tensile strenght for uniaxial. If 5.6 oz fabric is about 250 lb grab tensile, that makes it about 1500-3000 lb/ft, probably around 2500 lb/ft. Ton per foot! Good. Not much worse than uniaxial, at 1/3 the cost.
Grab Tensile Strength
- A 2 square inch piece of the fabric is grabbed with each 2 sq in jaw, in the middle of the fabric. [2]
- Thus, it is effectively comparable to grabbing a small section, so the real tensile strength will be many factors of this if you use a full width. Effectively, the max distance that adjoining fibers help is only up to 4", since the test is done on a 4x8 piece of material.
- Thus, every 4", the material has at least the grab tensile strength, and likely close to 4x more. Strip tensile is not much lower than grab tensile strenght - [3].
Shopping
- Uniaxial geogrid - [4]