Anchoring eccentricity features and rectifying devices for resin grouted bolt/cable bolt

Liu, Shaowei; He, Deyin; Jia, Housheng; Fu, Mengxiong; Hou, Biao

doi:10.1016/j.ijmst.2022.08.006

Cited by 14 publications

(1 citation statement)

References 28 publications

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“…Resin grouts are thermoset type polymers which are in liquid phase before their polymerization reactions. Resin grouts are advantageous due to the early curing, good bearing capacities in watery regions, high chemical durability, ductile support reactions, resistivities against the dynamic loads resulting from the blasting applications and etc (Chen et al, 2021;Liu et al, 2022;Yan et al, 2019). However, resin grouts are more expensive than the cement grout.…”

Section: 21923/jesd1214531mentioning

confidence: 99%

A Resin Type Additive Use to Improve Load Bearing Capacities of Grouted Rock Bolts Exposed to Thermal Cycles

Komurlu

2023

Mühendislik Bilimleri Ve Tasarım Dergisi

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A thermoset PMS (Polyvinyl modified silicone) type polymer additive effect on load bearing capacities of cement grouted rock bolt specimens exposed to thermal cycles was investigated with a series of experimental studies. The additive used in this study was in liquid phase while adding into the fresh cement mix and started to solidify by polymerization after being mixed well in the cement grout. The silicone based thermoset product was selected to use because of its ability of polymerization in contact with water. According to the results of this study, the load bearing capacity loss due to thermal cycles was found to be notably limited as a result of using the thermoset additive. Therefore, the additive tested in this study was assessed to improve resistivities of the cement grouted rock bolts against the thermal changes.

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Section: 21923/jesd1214531mentioning

confidence: 99%