I-arhente yokunciphisa amanzi

I-agent yokunciphisa amanzi, eyaziwa ngokuba yi-plasticizer, luhlobo lwezongezo zekhemikhali ezisetyenziselwa ikhonkrithi kunye nezinye izinto zesamente ukunciphisa ubungakanani bamanzi afunekayo ukufezekisa ukusebenza okufunwayo kunye namandla. Ukusetyenziswa kwee-agent zokunciphisa amanzi kunokuphucula umgangatho wekhonkrithi, ukwandisa ukuqina kwayo, kunye nokunciphisa iindleko ezipheleleyo zokwakha.

Ii-agent zokunciphisa amanzi zisebenza ngokusabalalisa kunye / okanye ukuchithwa kweengqungquthela ze-samente kumxube wekhonkrithi, okunciphisa ukungqubuzana kwe-interparticle kunye nokwandisa umbane womxube. Oku kwenza umxube kube lula ukusebenza ngawo kwaye kunciphisa umthamo wamanzi afunekayo ukuze kuphunyezwe ukuthotywa okufunwayo okanye ukusebenza. Ngokunciphisa umlinganiselo wamanzi-samente, amandla kunye nokuqina kwekhonkrithi kuphuculwe.

Kukho iintlobo ezimbini eziphambili zokunciphisa amanzi: i-lignosulfonates kunye neepolymers zokwenziwa. I-Lignosulfonates ithathwe kwi-pulp yomthi kwaye isetyenziswa ngokuqhelekileyo kwikhonkrithi yamandla aphantsi ukuya kwimodareyitha. Azibizi mali ininzi kwaye sele zisetyenziswa iminyaka emininzi. Ngakolunye uhlangothi, iipolymers ze-Synthetic, zenziwe kwiikhemikhali kwaye zinokubonelela ngokunciphisa okukhulu kwimfuno yamanzi kunye nokuphucula ukusebenza kakuhle, okwenza ukuba zilungele ukusetyenziswa kwikhonkrithi ephezulu yokusebenza.

Ii-agent zokunciphisa amanzi zingasetyenziselwa kwiintlobo ezahlukeneyo zezicelo, kubandakanywa ikhonkrithi ye-precast, i-concrete edibeneyo edibeneyo, i-shotcrete, kunye ne-self-consolidating concrete. Zingasetyenziselwa ukuphucula ukusebenza kwekhonkrithi kwimozulu eshushu, ukunciphisa umngcipheko wokuqhekeka, kunye nokunciphisa iindleko ezipheleleyo zokwakha.

Isishwankathelo, ii-agent zokunciphisa amanzi zizongezo zekhemikhali ezinciphisa ubungakanani bamanzi afunekayo ukuze kufezekiswe umsebenzi ofunekayo kunye namandla ekhonkrithi kunye nezinye izinto zesamente. Basebenza ngokusabalalisa kunye / okanye ukuchithwa kwe-cement particles, ukunciphisa i-interparticle friction kunye nokwandisa umbane womxube. Ukusetyenziswa kwezixhobo zokunciphisa amanzi kunokuphucula umgangatho kunye nokuqina kwekhonkrithi, ukunciphisa umngcipheko wokuqhekeka, kunye nokunciphisa iindleko ezipheleleyo zokwakha.