Zeziphi iziphumo ezenza kwakhona ipolymer powder ibe namandla odaka?

Ukudibanisa kwakhona i-polymer powders (RPP) kwi-formulation ye-mortar ichaphazela kakhulu iimpawu zamandla zezinto ezibangelwayo. Eli nqaku liphonononga iziphumo ze-RPP kumandla odaka, kubandakanywa nefuthe labo kumandla oxinzelelo, amandla okuguquguquka, amandla okunamathela, kunye nokuchasana kwempembelelo.

1. Amandla acinezelayo:

Amandla acinezelayo yipropati esisiseko yodaka, ebonisa ukukwazi kwayo ukumelana nemithwalo ye-axial. Ukongezwa kwee-RPP kunokunyusa amandla oxinzelelo ngeendlela ezininzi:

UThungelwano olwandisiweyo:

Ii-RPP zisebenza njengama-agent abophezelayo, ukukhuthaza ukubambisana okungcono phakathi kweengqungquthela zodaka. Olu phuculo lwe-interparticle bonding lunegalelo kumandla aphezulu oxinzelelo ngokunciphisa i-voids yangaphakathi kunye nokuphucula ukunyaniseka kwesakhiwo sezinto eziphathekayo.

Ukufunxwa kwaManzi okuNcitshisiweyo:

Ii-RPPs ziphucula ukugcinwa kwamanzi kumdaka, okuvumela ukuhanjiswa kwe-cementitious okusebenzayo ngakumbi. I-hydration efanelekileyo ikhokelela kwii-microstructures ezixineneyo ezine-voids ezimbalwa, ezikhokelela kumandla aphezulu oxinzelelo kunye namazinga aphantsi okufunxa kwamanzi.

Ukomelezwa kokuqina kweFlexural:

Ukuguquguquka okunikwe yi-RPP kunokuchaphazela ngokungathanga ngqo amandla oxinzelelo ngokuthintela i-microcracks ekusasazeni nasekunciphiseni izinto. Udaka olune-RPPs luhlala lubonisa amandla aphuculweyo e-flexural, ahambelana nokuchasana okuphuculweyo kumandla oxinzelelo.

2. Amandla e-Flexural:

Amandla e-Flexural alinganisa ukukwazi kwesixhobo ukuxhathisa ukugoba okanye ukuguqulwa kwemithwalo phantsi kwemithwalo esetyenzisiweyo. Ii-RPPs zinegalelo ekuphuculeni amandla okuguquguquka kumdaka ngokusebenzisa ezi ndlela zilandelayo:

Ukonyuka kokuqina kweBond:

Ii-RPPs zonyusa ukunamathela phakathi kwezixhobo zodaka kunye nemigangatho engaphantsi, okukhokelela kwiibhondi ezinamandla kunye nokuncipha kwe-delamination. Oku kuphuculwa kwamandla okudibanisa kuguqulela ukuxhathisa okuphezulu ukugoba kunye noxinzelelo lwe-tensile, ngaloo ndlela kwandisa amandla okuguquguquka.

Umanyano olomeleziweyo:

Iimpawu ezidityanisiweyo ze-RPP-modified mortar zinceda ukusabalalisa imithwalo esetyenzisiweyo ngokulinganayo kwi-cross-section ye-material. Oku kuhanjiswa kunciphisa uxinzelelo lwendawo kwaye kuthintele ukusilela kwangaphambi kwexesha, okukhokelela kumandla aphezulu wokuguquguquka.

3. Amandla okuncamathela:

Amandla okuncamathelisa abhekiselele kwiqhina phakathi kodaka kunye nomgangatho ongaphantsi. Ii-RPPs zidlala indima ebalulekileyo ekwandiseni amandla okuncamathela ngezi ndlela zilandelayo:

Ukuncamathela okuphuculweyo:

I-RPPs ikhuthaza ukunamathela okungcono ngokwenza ifilimu encinci, eguquguqukayo kwi-substrate surfaces, eyandisa indawo yoqhagamshelwano kunye nokukhuthaza ukuxhamla kwi-interface. Olu phuculo lokubambelela luthintela ukudityaniswa kunye nokuqinisekisa ukudibanisa okuqinileyo phakathi kodaka kunye ne-substrate.

UkuNcitshiswa kwamaNgxaki:

Ukuguquguquka kunye nokugcinwa kwamanzi kwiipropathi ze-RPP zinceda ukunciphisa ukuqhekeka kwe-shrinkage kumdaka, onokuthi uphazamise amandla okubambelela. Ngokunciphisa ukubunjwa kunye nokusasazwa kwe-crack, ii-RPPs zifaka isandla kwibhondi yokubambelela eqinile kwaye ehlala ixesha elide.

4. Ukuchasa iMpembelelo:

Ukumelana nempembelelo ilinganisa ukukwazi kwemathiriyeli ukumelana neempembelelo zequbuliso, zamandla aphezulu ngaphandle kokwaphuka okanye ukwaphuka. Ii-RPPs zongeza ukuxhathisa impembelelo yodaka ngezi ndlela zilandelayo:

Ukuqina Okunyukayo:

I-RPP-modified mortar ibonisa ubunzima obuphezulu ngenxa yokuguquguquka kwayo okuphuculweyo kunye ne-ductility. Oku kwanda kokuqina kuvumela izinto ukuba zifunxe kwaye zichithe amandla empembelelo ngokufanelekileyo, ukunciphisa ukubakho kokwaphuka okanye ukungaphumeleli kwimpembelelo.

Ukomelezwa koKuhlala:

Ukuqina okunikwa yi-RPPs kwandisa ubomi benkonzo yodaka, ukuqinisekisa ukusebenza kwexesha elide phantsi kweemeko ezinzima. Oku kuphucuka kokuqina kuguqulela ukuchasana okuphezulu kumonakalo wempembelelo, ukubetha, kunye nezinye iindlela zoxinzelelo lomatshini.

Ukuqukumbela, i-polymer powders ekwazi ukuphinda isebenze idlala indima ebalulekileyo ekwandiseni amandla odaka, kubandakanya amandla oxinzelelo, amandla okuguquguquka, amandla okuncamathelisa, kunye nokumelana nempembelelo. Ngokuphucula ukudibanisa, ukunamathela, kunye nokuqina, ii-RPPs zinegalelo ekuphuhliseni ukwakhiwa kodaka oluphezulu olufanelekileyo kuluhlu olubanzi lwezicelo zokwakha.