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This paper introduces a novel standing support incorporating fibre-reinforced polymer (FRP), termed FRP tubular standing support (FTSS). The exterior container of FTSS is the small rupture strain (SRS) GFRP tube wrapped with ultra-high molecular weight polyethylene (UHMWPE) FRP jacket with large rupture strain (LRS), while the infill is the coal rejects based backfill material (CBM). The CBM is made of industrial by-product (i.e. coal rejects) and high flowable cementitious grout material, leading to some environmental and economic benefits when it is used in underground mines. Test variables ...

Abstract This paper presents the development of an innovative standing support for underground mines. The main feature of this standing support is its exterior container, a combination of polyvinyl chloride (PVC) with large rupture strain and fibre-reinforced polymer (FRP) with high strength-to-weight ratio. To demonstrate the advantages of this cementitious grout filled PVC-FRP tubular (PFT) standing support, a series of compression tests were conducted. Test variables included the strength of cementitious grout infill material and the thickness of FRP jacket. Compression tests were also con...

Polling, joe biden does not only sustain a sizeable lead, but if you look at the african-american community and look at that poll that came out yesterday, overall he has 39% support. kamala harris is next at 12%. but with black voters he's currently at 51%. if you do a breakdown and look at older black voters, there's a lot of standing support for the former vice president. one gentleman i talked to is a long-time member of the national urban league out of houston. and eric goody was telling me, he said what you look at in a candidate is somebody who has been willing to grow over the course of...

It was a jam-packed room, standing support for mr. trump. very good dialogue that we had back and forth and donald trump made it very clear that he's willing to do whatever it takes to win the black vote, to challenge at the unemployment rate that plagues our communities and really brings jobs to the inner cities. >> i know there were pastors in the room who did not want to be part of a post-game, if you will, news conference, because they weren't going to endorse donald trump. but you're saying, you know of several in the room who did and are supporting trump, and are you run of them? >> abso...

We appreciate it. thank you. the historical ties and close friendship between our two countries dates back three quarters of a century. in that time, the middle east has faced many periods of crisis and unrest. perhaps never like it is today, however. through them all, america has looked to jordan as a valued partner, an advocate for the values of civilization, and a source of stability and hope. i am deeply committed to preserving our strong relationship, which i will, and to strengthening america's long standing support for jordan. and you do have tremendous support within our country, i can...