WebAbstract: Normet’s TamCrete SSL (structural support liner) was introduced one and a half years ago and is a reactive resin-based, rapid-curing, gas and watertight spray-applied shell. It is applied to a thickness of 5–10 mm and gains 70 to 80% of its peak strength within three to five minutes. This paper gives an overview on application methods, key mechanical … WebThe influence of a polypropylene fiber on the tensile properties of a cement-polymer based thin spray-on liner (TSL) was investigated in this study. Two different contents of fiber were added to the liner, yielding two TSL groups. Tensile tests were performed (in accordance with the ASTM D638 standard) on the two groups of specimens as well as the control …
Thin Spray-on Liner is designed for underground coal mining.
WebA thin spray-on liner (TSL) is a thin chemical-based coating or layer that is applied onto mining excavations with a thickness of 3 to 5 mm (Lau et al., 2008; Richardson et al., … WebSep 8, 2016 · THIN SPRAY-ON LINERS A. Definition of TSLs A TSL, also referred to as a sealant, coating or membrane, is defined as a thin chemical based coating or layer that is applied to mining excavations at ... citi thankyou preferred card credit score
Creep behaviour of a polymer-based underground support liner
Web1.1. Development of Thin Spray-On Liners Thin spray-on liners (TSLs) are surface support materials that are sprayed onto the rock surface at a layer of 3 to 5 mm thickness [1]. TSLs (reactive or non-reactive) are generally cement, latex, and polymer-based. The first tests on TSLs were performed in Canada in the late 1980s. Initial research WebAn autonomous spray application system for a structural Thin Spray-on Liner (TSL) is targeting productivity and safety on underground coal continuous miners by potentially … WebMay 24, 2024 · The thin spray-on liner is an inorganic polymer product that has been widely used to support mine perimeter rock roadways, but it is mainly used in metallic hard rock roadways with high rock strength and is less used in roadways affected by roadway corrosion and weathering in shallowly buried coal seams. Therefore, this study studies the … citi thankyou preferred credit score