Impembelelo ye-cellulose ether kwi-plastic free shrinkage of mortar

1. Imvelaphi yophando ngesiphumoi-cellulose etherkwiplastiki ukushwabana simahla kodaka

Udaka lusetyenziswa ngokubanzi kwiiprojekthi zokwakha, kwaye ukuzinza komsebenzi walo kunempembelelo ebalulekileyo kumgangatho wezakhiwo. I-Plastiki ye-shrinkage yamahhala yinto enokuthi yenzeke kumdaka ngaphambi kokuqina, okuya kubangela iingxaki ezifana nokuqhekeka kumdaka, okuchaphazela ukuqina kwayo kunye ne-aesthetics. I-Cellulose ether, njengesongezo esisetyenziswa ngokuqhelekileyo kwidaka, inempembelelo ebalulekileyo kwi-plastic free shrinkage of mortar.

2. Umgaqo we-cellulose ether yokunciphisa i-plastic free shrinkage of mortar

I-ether yeCellulose inokugcinwa kwamanzi okugqwesileyo. Ukulahleka kwamanzi kwidaka yinto ebalulekileyo ekhokelela ekunciphiseni kweplastiki simahla. Amaqela e-hydroxyl kwi-cellulose ether molecules kunye nee-athomu ze-oksijini kwiibhondi ze-ether ziya kwenza iibhondi ze-hydrogen kunye neemolekyuli zamanzi, ziguqule amanzi akhululekile kumanzi adibeneyo, ngaloo ndlela ukunciphisa ukulahlekelwa kwamanzi. Ngokomzekelo, kwezinye izifundo, kwafunyaniswa ukuba ngokunyuka kwe-cellulose ether dosage, izinga lokulahlekelwa kwamanzi kwi-mortar liye lancipha ngokulandelelana. Njengoimethyl hydroxypropyl cellulose ether (HPMC), xa i-dosage yi-0.1-0.4 (iqhekeza elikhulu), inokunciphisa izinga lokulahlekelwa kwamanzi kwi-samente yodaka ngo-9-29%.

I-ether ye-cellulose iphucula iipropati ze-rheological, i-porous network structure kunye noxinzelelo lwe-osmotic ye-samente entsha yokunamathisela, kunye nepropati yayo yokwenza ifilimu ithintela ukusasazwa kwamanzi. Olu chungechunge lweendlela ngokudibeneyo lunciphisa uxinzelelo oluveliswa lutshintsho lokufuma kumdaka, ngaloo ndlela luthintela ukuncitshiswa kweplastiki simahla.

3. Impembelelo yedosi ye-cellulose ether kwi-plastic free shrinkage of mortar

Uphononongo lubonise ukuba ukushwabana kweplastiki simahla kodaka lwesamente kuncipha ngokulandelelana ngokunyuka kwedosi ye-cellulose ether. Ukuthatha i-HPMC njengomzekelo, xa i-dosage yi-0.1-0.4 (iqhezu lobuninzi), i-plastic shrinkage yamahhala yodaka lwesamente ingancitshiswa ngama-30-50%. Oku kungenxa yokuba njengoko i-dosage isanda, isiphumo sayo sokugcinwa kwamanzi kunye nezinye iziphumo zokunqanda ukucutha ziyaqhubeka zikhula.

Nangona kunjalo, idosi ye-cellulose ether ayinakonyuka ngokungenasiphelo. Ngakolunye uhlangothi, kwimbono yezoqoqosho, ukongezwa kakhulu kuya kwandisa iindleko; kwelinye icala, i-ether yeselulosi eninzi inokuba nefuthe elibi kwezinye iipropathi zodaka, njengamandla odaka.

4. Ukubaluleka kwempembelelo ye-cellulose ether kwi-plastic free shrinkage of mortar.

Ukusuka kwimbono yesicelo sobunjineli obusebenzayo, ukongezwa okufanelekileyo kwe-cellulose ether kumdaka kunokunciphisa ngokufanelekileyo i-plastic shrinkage yamahhala, ngokunciphisa ukwenzeka kweentanda zodaka. Oku kubaluleke kakhulu ekuphuculeni umgangatho wezakhiwo, ngakumbi ekuphuculeni ukuqina kwezakhiwo ezifana neendonga.

Kwezinye iiprojekthi ezikhethekileyo ezineemfuno eziphezulu zomgangatho wodaka, njengezakhiwo eziphakamileyo zokuhlala kunye nezakhiwo ezinkulu zikawonkewonke, ngokulawula impembelelo ye-cellulose ether kwi-plastic shrinkage yamahhala yodaka, inokuqinisekiswa ukuba iprojekthi ihlangabezana nemigangatho ephezulu. .

5. Amathemba ophando

Nangona kukho iziphumo ezithile zophando kwimpembelelo ye-cellulose ether kwi-plastic free shrinkage of mortar, kusekho iinkalo ezininzi ezinokuphononongwa nzulu. Umzekelo, indlela yempembelelo yeendidi ezahlukeneyo ze-cellulose ethers kwi-plastic free shrinkage of mortar xa zisebenza kunye nezinye izongezo.

Ngophuhliso oluqhubekayo lwetekhnoloji yokwakha, iimfuno zokusebenza kodaka nazo zikhula rhoqo. Uphando olongezelelweyo luyafuneka malunga nendlela yokulawula ngokuchanekileyo ukusetyenziswa kwe-cellulose ether kwi-mortar ukufezekisa umphumo ongcono wokuthintela i-plastic shrinkage yamahhala ngelixa kuthathelwa ingqalelo ezinye iipropati zodaka.