Ukubaluleka kwe-HPMC ekugcinweni kwamanzi kwe-mortar

I-Hydroxypropyl methylcellulose (HPMC) iyisithasiselo esisetshenziswa kakhulu embonini yokwakha, ikakhulukazi ku-mortar. Njengenhlanganisela yama-molecule amaningi, i-HPMC inezici eziyenza isebenze kahle ekugcinweni kwamanzi, ekuqineni, ekugcotshweni, ekuzinzeni nasekuthuthukiseni ukunamathela.

(1) Izakhiwo zamakhemikhali kanye nendlela yokusebenza kwe-HPMC

I-HPMC iyi-ether ye-cellulose engeyona i-ionic etholakala ngokuguqulwa kwamakhemikhali kwe-cellulose yemvelo. Amaqembu e-hydroxypropyl kanye ne-methyl esakhiweni sayo sama-molecule ayinika ukuncibilika okuhle kanye ne-viscosity. Lezi zakhiwo zamakhemikhali zivumela i-HPMC ukuthi idlale izindima ezilandelayo ezibalulekile ku-mortar:

1.1 Ukusebenza kokugcinwa kwamanzi

Ukusebenza kokugcinwa kwamanzi kwe-HPMC kuvela kakhulu emaqenjini athanda amanzi esakhiweni sayo sama-molecule. La maqembu angakha izibopho ze-hydrogen nama-molecule amanzi, ngaleyo ndlela abambe futhi agcine amanzi ngempumelelo. Ngesikhathi senqubo yokwakha i-mortar, i-HPMC inganciphisa ukuhwamuka kwamanzi, igcine okuqukethwe komswakama ku-mortar, futhi iqinisekise ukusabela okuphelele kokumanziswa kwe-samente.

1.2 Umphumela wokuqina

I-HPMC idlala indima yokujiya ku-mortar. Isixazululo esiqinile esakhiwe ngemva kokuncibilika kwayo singandisa ukuqina kwe-mortar, okwenza kube lula ukwakha nokuma. Lokhu akugcini nje ngokuthuthukisa ukusebenza kokwakhiwa kwe-mortar, kodwa futhi kunciphisa ukugoba kwe-mortar ebusweni obuqondile.

1.3 Umphumela wokugcoba nokuqinisa

Umphumela wokugcoba we-HPMC wenza udaka lube lula ngesikhathi sokuxuba nokwakha, kunciphisa ubunzima bokwakha. Ngesikhathi esifanayo, i-HPMC inokuqina okuhle, okungathuthukisa ikhono lokuvimbela ukwahlukana kodaka futhi kuqinisekiswe ukusatshalaliswa okufanayo kwezingxenye zodaka. 

(2) Ukusetshenziswa okuqondile kwe-HPMC ekugcinweni kwamanzi edakeni

I-HPMC isetshenziswa kabanzi ezinhlotsheni ezahlukene zezimbobo, futhi umphumela wayo wokugcina amanzi unegalelo elikhulu ekuthuthukiseni ukusebenza kwezimbobo. Lokhu okulandelayo ukusetshenziswa kwe-HPMC ezimbobo eziningana ezivamile:

2.1 Udaka olujwayelekile lwesimende

Ku-mortar evamile yesamente, umphumela wokugcina amanzi we-HPMC ungavimbela ngempumelelo i-mortar ekulahlekelweni kwamanzi ngokushesha ngesikhathi sokwakha, ngaleyo ndlela kugwenywe inkinga yokuqhekeka kwe-mortar nokulahlekelwa amandla. Ikakhulukazi ezindaweni ezinokushisa okuphezulu nendawo eyomile, ukusebenza kokugcina amanzi kwe-HPMC kubaluleke kakhulu.

2.2 Udaka lokubopha

Ku-bonding mortar, umphumela wokugcina amanzi we-HPMC awusizi nje kuphela ekumunceni usimende, kodwa futhi uthuthukisa amandla okubopha phakathi kwe-mort and substrate. Lokhu kubaluleke kakhulu ekwakhiweni kwe-paving yezinto ezifana namathayili namatshe, futhi kungavimbela ngempumelelo ukwenzeka kokugoba nokuwa.

2.3 Udaka oluzilinganisayo

Udaka oluzilinganisa ludinga ukugeleza okuhle kanye nezakhiwo zokuzihlanganisa. Imiphumela yokujiya kanye nokugcinwa kwamanzi ye-HPMC ingathuthukisa ukusebenza kokwakhiwa kodaka oluzilinganisayo, iqinisekise ukuthi ngeke lulahlekelwe amanzi ngokushesha ngesikhathi sokugeleza kanye nenqubo yokuzihlanganisa, ngaleyo ndlela kuqinisekiswe ikhwalithi yokwakha.

2.4 Udaka lokuvala umoya

Ama-aggregates alula avame ukungezwa ku-insulation mortar, okwenza ukusebenza kokugcinwa kwamanzi kwe-mortar kubaluleke kakhulu. Umphumela wokugcinwa kwamanzi we-HPMC ungaqinisekisa ukuthi i-insulation mortar igcina umswakama ofanele ngesikhathi sokwakhiwa nokuqina, igweme ukuqhekeka nokuncipha, futhi ithuthukise umphumela wokufakwa kanye nokuqina kwe-mortar.

(3) Izinzuzo ze-HPMC ekugcinweni kwamanzi e-mortar

3.1 Thuthukisa ukusebenza kokwakha

Umphumela wokugcina amanzi we-HPMC ku-mortar ungathuthukisa kakhulu ukusebenza kokwakhiwa kwe-mortar. Imiphumela yayo yokujiya nokugcoba yenza kube lula ukuyisebenzisa nokuyibumba, kunciphisa ubunzima kanye nobunzima bomsebenzi ngesikhathi senqubo yokwakha. Ngesikhathi esifanayo, ukusebenza kokugcina amanzi kwe-HPMC kungandisa isikhathi sokusebenza kwe-mortar, kunikeze abasebenzi bokwakha isikhathi esengeziwe sokusebenza.

3.2 Thuthukisa ikhwalithi yodaka

Umphumela wokugcina amanzi we-HPMC usiza ukusabela okuphelele kokumanzisa kwesimende, ngaleyo ndlela kuthuthukise amandla nokuqina kwesimende. Ukusebenza kahle kokugcina amanzi kungavimbela nesimende ukuthi siqhekeke futhi sinciphe ngesikhathi senqubo yokuqina, okuqinisekisa ikhwalithi kanye nomphumela wokwakhiwa.

3.3 Ukonga izindleko

Ukusetshenziswa kwe-HPMC kunganciphisa inani lesimende ku-mortar, ngaleyo ndlela kuncishiswe izindleko zokwakha. Ukusebenza kwayo kokugcina amanzi kwenza amanzi ku-mortar asetshenziswe kahle, kunciphisa ukulahleka kwamanzi kanye nokuchithakala. Ngesikhathi esifanayo, i-HPMC inganciphisa izinga lokulungiswa kabusha kwe-mortar ngesikhathi sokwakha, okusindisa izindleko ezengeziwe.

Ukubaluleka kwe-HPMC ekugcinweni kwamanzi e-mortar kuyabonakala. Izakhiwo zayo zamakhemikhali ezihlukile kanye nendlela esebenza ngayo kwenza idlale indima ebalulekile ekuthuthukiseni ukugcinwa kwamanzi, ukusebenza kokwakhiwa kanye nekhwalithi iyonke ye-mortar. Ngokuthuthuka kwemboni yokwakha, ukusetshenziswa kwe-HPMC kuzoba kubanzi futhi kujule, futhi kuqhubeke nokuba negalelo ekuthuthukisweni kokusebenza kanye nokuqinisekiswa kwekhwalithi ye-mortar nezinye izinto zokwakha.