Isishwankathelo se-Basalt Fiber-Reinforced Plaster Mortar

1. Iimpawu ezisisiseko zeBasalt Fiber

I-basalt fiberikakhulu yenziwe ngesilicon oxide, i-aluminium oxide, kunye ne-iron oxide, enamazinga aphezulu esilicon oxide kunye ne-aluminium oxide, eyinika iingenelo ezibalulekileyo ekuxhathiseni ubushushu kunye Ikhemikhali ukumelana nomhlwa. Xa kuthelekiswa nefiber yeglasi, ifayibha ye-basalt ayinayo i-oxide yensimbi eyingozi, ekhokelela ekuzinzeni kweekhemikhali ezingcono kunye nokuqina okugqwesileyo kwiindawo ezinobungozi ezifana ne-alkali eyomeleleyo kunye ne-acids eqinile.

Amandla anamandla e-basalt fiber ngokubanzi avela kwi-3000 ukuya kwi-4800 MPa, kwaye i-modulus yayo e-elastic iphakathi kwe-80 ukuya kwi-110 GPa. Oku kuyenza yomelele kunefiber yeglasi, ene-elongation ephantsi ngexesha lekhefu, ephucula ngokufanelekileyo ukuxhathisa kokuqhekeka kwezinto ezisekwe kwisamente.

Ifayibha ye-Basalt ibonisa ukumelana nobushushu obuphezulu, enendawo yokunyibilika engaphezulu kwe-1400°C kunye nobushushu benkonzo yexesha elide ukuya kuthi ga kwi-700°C, yodlula lee ifayibha yeglasi. Oku kuvumela ukuba kugcinwe iipropati ezizinzileyo zomzimba nakwiindawo eziphezulu zokushisa.

Ifayibha ye-basalt ikwanayo nokumelana ne-alkali ephezulu, ukuxhathisa kweasidi, kunye nokuxhathisa kwe-UV. Inokugcina ubomi obude benkonzo kwiindawo ezinzima ezifana nokufuma, isitshizi setyuwa, kunye nokubola kweekhemikhali, okwenza ukuba ifaneleke ngokukodwa kwizinto zobunjineli ezifana neengqimba zodonga lwangaphandle ezivezwe kwiimeko ezinzima ixesha elide.

2. I-Crack Resistance Mechanism ye-Fiber-Reinforced Mortar

Impembelelo yokuqinisa iifiber kwidaka ngokuyinhloko ixhomekeke ekuhanjisweni kwendawo, ubude, umxholo, kunye nokusebenza kokudibanisa kunye nezinto ezisekelwe kwi-samente. Ngexesha lenkqubo yokuqina yodaka, i-micro-cracks inokwenza lula ngaphakathi ngenxa yezinto ezifana nokunciphisa umthamo ukusuka kwiimpendulo ze-hydration kunye noxinzelelo lwe-thermal olubangelwa utshintsho lobushushu.

Iintsinga zinokuwadibanisa omabini amacala eentanda ezincinci, zibonelela ngesiphumo sokuvala xa iintanda ziqala ukuvela, zilibazisa ngokufanelekileyo ukwanda kokuqhekeka kunye nokuphucula ukuqina kwesixhobo kunye nokumelana nokuqhekeka. I-basalt fiber inobuso oburhabaxa, obunika ukudibanisa okuqinileyo ngokomzimba kunye nentlama yesamente. Xa imithwalo yangaphandle isetyenziselwa udaka, inxalenye yoxinzelelo inokudluliselwa ngeefibers kwi-matrix ejikelezileyo, ngaloo ndlela inciphisa ukugxininiswa kwengcinezelo yendawo kunye nokuthintela ukusabalalisa okuqhubekayo kokuqhekeka. Le ndlela yokusasaza uxinzelelo inceda ekuphuculeni ukomelela okupheleleyo kunye nokumelana nempembelelo yodaka.

Ngexesha lokuqina kodaka, iifibers zinokwenza i-randomly distributed Ukuqinisa iMesh ulwakhiwo ngaphakathi kwe-matrix, ukuphucula ukuxhathisa ukuguqulwa kodaka. Xa umaleko we-plaster uphantsi kokutshintsha kwamaqondo obushushu angaphandle, ukomisa uxinzelelo lwe-shrinkage, okanye imithwalo yemishini, le mesh yokuqinisa inokumelana ngokufanelekileyo ne-deformation kwiindawo zokuxinzelela uxinzelelo, okukhokelela ekuchaseni okuphezulu kokuqhekeka kwizinto eziphathekayo.