Tsvagiridzo & Mashandiro Mamiriro eOrganic Synthetic Fiber Concrete (II)

2.2 Nylon faibha kongiri

Nylon faibha kongiri ndeimwe yepakutanga polymer fibers akashandiswa musimende nekongiri, mutengo wakakwira zvakati, uye kushandiswa kune kushoma.Kubatanidzwa kwenylon fiber kunogona kuderedza zvakanyanya kuoma shrinkage kukosha kwekongiri, asi flexural, compressive, axial pressure, elastic mold uye stress-strain properties hazvina kunyanya kusiyana nekongiri yakajairwa, uye kusapindira uye kuvharidzira kwehutu kunovandudzwa zvakanyanya, nokudaro kuvandudza kusimba kwekongiri.

Kana huwandu hushoma hwenaironi fiber (0.052%) hwawedzerwa kune kongiri, iyo kongiri matrix inogona kuwana yakakosha isiri-yakarongeka yekusimudzira maitiro, inoderedza zvakanyanya kuputika kwepurasitiki kutsemuka kwekongiri, uye kugadzirisa kupikisa kwekongiri.Kana iyo dosi yakawedzera kusvika 0.26%, kupikisa kwekongiri kunogona kuwedzera zvakanyanya.Nylon fiber inogona kuvandudza kusimba kwechando kwekongiri, kuvharidzira kurasikirwa kwesimba kwekongiri, uye kunatsiridza kutaridzika kwechidimbu chekuyedza.Wan Zhongxiang et al.tenda kuti izvi zvinokonzerwa nekubatanidzwa kwenylon fibers kuderedza kuputika kunokonzerwa nekushungurudzika kwemukati kwekrete, pamwe chete nekuwedzera kwegasi yekrete, uye kuwedzera kwekudzivirira-kuwedzera kudzvinyirira uye osmotic pressure.Vakaona kuti kongiri yakashongedzwa ne 0.5% vhoriyamu fractional nylon faibha yakaderedza dynamic elastic modulus kurasikirwa uye kurasikirwa kukuru ne10.5% uye 1.7%, zvichiteerana, zvichienzaniswa nebenchmark kongiri mushure memazana matatu echando-thaw cycles.

2.3 Polyethylene faibha kongiri

Nekuda kweiyo yakaderera modulus yekunyungudika, polyethylene fiber yave isingawanzo kushandiswa mumakombisi esimende kusvika zvino, uye haina kunyatso dzidza.KCG Ong, M. Basheerkhan, P. Paramasivam mune yakaderera-speed impact test ye polyethylene fiber concrete slab, mu fiber content ye 0.5%, 1% uye 2%, iyo yekuputsika simba kukosha kwakawedzera ne19%, 53% uye 80 %, zvichiteerana.Kunyangwe izvi zvakakosha zvidiki pane kukosha kwesimbi fiber kongiri slabs yezvakafanana (iyo kukosha kwesimbi fiber kongiri slabs ndeye 40%, 100% uye 136%, zvichiteerana), mutengo wavo wakanyanya kudiki pane simbi fiber, kana elastic. modulus inosvika 70GN/m2 inogona kugadzirwa yakakwira elastic mold polyethylene faibha, iyi yakachipa fiber ine mukana mukuru mumunda wecementitious composite.

Laizhou Kaihui Machinery Co., Ltd inyanzvi inogadzirakongiri faibha extrusion line.Kugamuchirwa kuti utibate kuti uwane rumwe ruzivo.