Textile conveyor belts. Full thickness tensile strength, elongation at break and elongation at the reference load. Test method

The tensile properties of untreated and alkali treated betel nut husk fiber were investigated using single fiber tensile test method and the fiber structures were observed using SEM technique. The alkali treatment aids in the removal of lignin, hemicellullose and non-cellulosic components such as wax and pectin on the betel nut husk fiber surface, which yields bigger lumen size and rougher betel nut husk fiber surface. The alkali treatment enhanced the elongation at break of betel nut husk fiber but at the expense of tensile strength and Young's modulus.

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Study on Crack Bridging Ability of Polymer-Modified Cement Based Compounds for Waterproofing Material

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1129.217 ◽

2015 ◽

Vol 1129 ◽

pp. 217-221 ◽

Cited By ~ 1

Author(s):

Hong Zhao ◽

Wei Li ◽

Yong Ming Zhang

Keyword(s):

Tensile Strength ◽

Strength Test ◽

Test Method ◽

Test Results ◽

Engineering Applications ◽

Crack Bridging ◽

Ability Test ◽

Elongation At Break ◽

Tensile Strength Test ◽

Good Ability

China's existing polymer-modified cement based compounds for waterproofing material standards are used for the tensile strength test and elongation at break test as the test method to evaluate the performance of the product extension. The elongation only reflects the extension ability of product, but cannot indicate the crack bridging ability of the product. In engineering applications, there is a requirement for higher bridging cracks ability of the products. In this paper, 9 samples of polymer-modified cement based compounds for waterproofing material were tested. Crack bridging ability was tested under the standards and methods in DIN EN 14891:2013-07. Tensile strength and elongation at break were tested according to the standards and methods in GB23445:2009. The crack bridging ability test results are between 0 to 2.08mm, in which 5 of them meet the requirements of greater than 0.75mm according to DIN EN14891:2013-07.The tensile strength test results are between 1.13MPa to 3.19MPa, the elongation at break test results are between 4% to 350%.The results show that higher tensile strength and higher elongation at break will have good ability of crack bridging. Samples with better crack bridging ability are close to type III product according to GB23445-2009 which requires tensile strength ≥ 1.8MPa and elongation at break ≥ 30%. Crack bridging ability directly reflects the product’s ability of crack bridging, and is more in line with the actual requirements in engineering applications. It is recommended that the crack bridging ability test method should be adopted in the formulation of China polymer-modified cement compounds for waterproofing material standards.

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The Guidelines of Product Design from the Vetivers Grass Fiber Innovation (Case Study of the Handicraft Product Group, Phayao Province)

Asian Social Science ◽

10.5539/ass.v13n12p77 ◽

2017 ◽

Vol 13 (12) ◽

pp. 77

Author(s):

Rosjana Chandhasa ◽

Jong Boonpracha ◽

Somsakul Jerasilp ◽

Palang Wongtanasuporn

Keyword(s):

Tensile Strength ◽

Physical Property ◽

Standard Test ◽

Wire Rope ◽

Test Method ◽

Vetiver Grass ◽

Elongation At Break ◽

Product Group ◽

Maximum Tensile Strength ◽

Fiber Size

This research aims to study the process and the physical property of the vitiate grass fiber by spinning vetiver grass with other natural fibers such as cotton, SamiaRicini, silk and plastic fiber such as plastic rope, wire rope and straw rope. The exploration was conducted by Ban KoSoa women group cooperative settlement, Ban Kae Mai handicraft product group and Ban Don Chai handicraft product group in Pusang District, Phayao Province. The physical properties examination, namely: ASTMD 1059:2001 Standard Test Method for Fiber Size, ASTM D 2256: 2002 Standard Test Method for Fiber Toughness with Hardness and Flexibility fiber Equipment, the results of examination would be brought to determinate for the handicraft product development design. The results from this exploration revealed that the fiber size was 0.73-0.15Ne, the tenacity (toughness) as maximum tensile strength was 4.75-9.97 kgf and the elongation at break was 7.73-11.48 percentages. The vetiver grass fiber mixed with straw rope had the tenacity as maximum tensile strength with differently at the statistically significant level of .05, the tenacity as maximum tensile strength average at 9.9 kgf, the vetiver grass fiber mixed with cotton fiber had the tenacity as maximum tensile strength with differently at the statistically significant level of .05, the tenacity as maximum tensile strength average at 6.60 kgf. The vetiver grass fiber mixed with wire rope had the highest elongation at break with differently at the statistically significant level of .05 by with the elongation break was 11.48 percentage. The vetiver grass fiber mixed with SamiaRicini fiber had the elongation break point with differently at the statistically significant level at .05, the elongation at break was 11.6 percentage. According to the handicraft product development guideline from the physical property of the vetiver grass fiber on the basis of this finding, the strength fiber as the vetiver grass fiber mixed with straw rope fiber or cotton fiber could be used for supporting weight product requirement, the elasticity fiber as the vetiver grass fiber mixed with straw rope fiber or SamiaRicini could be used for product which soft and flexibility requirement, the utility from using fiber color that spinning for beauty could be used the vetiver grass fiber that spinning and mixed with other fiber.

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