Ko te mahi nui a te Hydroxypropyl methylcellulose (HPMC) he pupuri wai, he whakamātotoru, he whakapai ake i te mahi hanga o te sima, te gypsum me ētahi atu rauemi paura. Mā te mahi pupuri wai pai rawa atu ka ārai i te maroke me te ngatata o te paura nā te nui o te wai e ngaro, ā, ka roa ake te wā hanga o te paura.
Kōwhiria ngā rauemi sima, ngā mea whakapūmau, ngā mea whakapūmau, ngā mea pupuri wai, ngā mea here, ngā mea whakarerekē mahi hanga, me ētahi atu. Hei tauira, he pai ake te mahi piri o te moata gypsum i te moata sima i te āhua maroke, engari ka tere te heke o tōna mahi piri i raro i te āhua o te mimiti makuku me te mimiti wai. Me whakaitihia te kaha piri o te moata parai i ia paparanga, arā, ko te kaha piri i waenga i te paparanga turanga me te kaihoko maimoatanga atanga ≥ te kaha piri i waenga i te moata paparanga turanga me te kaihoko maimoatanga atanga ≥ te hononga i waenga i te moata paparanga turanga me te moata paparanga mata Kaha ≥ te kaha piri i waenga i te moata mata me te rauemi putty.
Ko te whāinga whakamakuku pai rawa atu o te moata sima i runga i te turanga, kia mimiti te hua whakamakuku sima i te wai me te turanga, kia uru ki roto i te turanga, ā, kia hanga he "hononga matua" whai hua ki te turanga, kia tutuki ai te kaha here e hiahiatia ana. Mā te whakamakuku tika ki runga i te mata o te turanga ka nui te horapa o te mimiti wai o te turanga nā te rerekētanga o te pāmahana, te wā whakamakuku, me te ōritetanga o te whakamakuku. He iti ake te mimiti wai o te turanga, ā, ka mimiti tonu i te wai i roto i te moata. I mua i te haere tonu o te whakamakuku sima, ka mimitihia te wai, ka pā ki te whakamakuku sima me te urunga o ngā hua whakamakuku ki roto i te anga; he nui te mimiti wai o te turanga, ā, ka rere te wai i roto i te moata ki te turanga. He puhoi te tere hekenga waenga, ā, ka hangaia he paparanga wai-nui i waenganui i te moata me te anga, ka pā hoki ki te kaha here. Nō reira, mā te whakamahi i te tikanga whakamakuku turanga noa, ehara i te mea ka kore e taea te whakaoti pai i te raruraru o te mimiti wai nui o te turanga pakitara, engari ka pā ki te kaha here i waenganui i te moata me te turanga, ka puta he poka me te ngatata.
Te pānga o te cellulose ether ki te kaha pēhi me te kaha kutikuti o te moata sima.
Mā te tāpiri i te cellulose ether, ka heke te kaha o te pēhi me te kutikuti, nā te mea ka mimiti te cellulose ether i te wai, ā, ka whakanui ake i te porosity.
Ko te kaha o te here me te kaha o te here e whakawhirinaki ana ki te kaha me te whai hua o te hononga matua i waenga i te moata me te rauemi turanga mō te wā roa.
Ko ngā āhuatanga e pā ana ki te kaha o te hononga ko:
1. Ngā āhuatanga mimiti wai me te taratara o te atanga o te papa.
2. Te kaha pupuri wai, te kaha uru me te kaha hanganga o te moata.
3. Ngā taputapu hanga, ngā tikanga hanga me te taiao hanga.
Nā te mea he mimiti wai te paparanga turanga mō te hanga moata, i muri i te mimitinga o te wai i roto i te moata e te paparanga turanga, ka heke te kaha o te hanga moata, ā, i ngā wā tino kino, kāore e tino makuku te rauemi sima i roto i te moata, ka hua ake he kaha, he mea motuhake. Ko te take he iti haere te kaha o te hononga i waenga i te moata kua whakapakeketia me te paparanga turanga, ka pakaru, ka taka te moata. Ko te otinga tuku iho mō ēnei raruraru ko te whakamakuku i te turanga, engari kāore e taea te whakarite kia makuku ōrite te turanga.
Wā tuku: Mei-06-2023