Ina pā te rauemi sima i tāpirihia ki te paura rapa ki te wai, ka tīmata te tauhohenga whakamakuku, ā, ka tere te tae o te wairewa konupūmā hauwai ki te mātotoru, ka puta ngā tioata, ā, i taua wā anō, ka puta ngā tioata ettringite me ngā tiēre hauwai konupūmā silicate. Ka whakatakotoria ngā matūriki totoka ki runga i te tiēre me ngā matūriki sima kāore i whakamakukuhia. I te haere tonu o te tauhohenga whakamakuku, ka piki haere ngā hua whakamakuku, ā, ka huihui haere ngā matūriki polymer ki roto i ngā pūwero, ka hanga he paparanga kapi ki runga i te mata o te tiēre me ngā matūriki sima kāore i whakamakukuhia.
Ka āta whakakīia ngā pūwero e ngā matūriki pūwero kua whakakotahi, engari kāore e tino kapi katoa ki te mata o roto o ngā pūwero. I te mea ka whakaitihia te wai e te whakamakuku, e te whakamaroke rānei, ka honoa ngā matūriki pūwero kua piri tata ki runga i te tiēre me roto i ngā pūwero hei kiriata tonu, ka hanga he ranunga e uru ana ki te whakapiri sima whakamakuku, ā, ka whakapai ake i te makuku. Te herenga o ngā hua me ngā matūriki. Nā te mea ka hanga e ngā hua whakamakuku me ngā pūwero he paparanga hipoki i te atanga, ka pā pea ki te tipu o te ettringite me ngā tioata konupūmā hauwai matotoru; ā, nā te mea ka whakapūmau ngā pūwero hei kiriata i roto i ngā pūwero o te rohe whakawhiti atanga, ka kikī ake ngā rauemi sima pūwero. Ka whakaputa hoki ngā rōpū hohe i roto i ētahi ngota pūwero i ngā tauhohenga hononga-whiti me te Ca2+ me te A13+ i roto i ngā hua whakamakuku sima hei hanga hononga piriti motuhake, hei whakapai ake i te hanganga ā-tinana o ngā rauemi sima whakapakeke, hei whakamama i te ahotea o roto, hei whakaiti hoki i te whakaputanga o ngā kapiti moroiti. I te whanaketanga o te hanganga tiēre sima, ka pau te wai, ā, ka āta herea ngā matūriki pūwero ki roto i ngā pūwero. I te mea ka nui haere te makuku o te sima, ka heke te makuku i roto i ngā pūwero o te kiri, ā, ka kohikohi ngā matūriki pūwero ki runga i te mata o te ranunga matūriki sima tiēre/sima kore-makuku me te konganuku, ka hanga he paparanga piri tonu me ngā pūwero nui. Kī tonu i ngā matūriki pūwero piri, piri-ā-unoa rānei.
Ko te mahi a te paura rapa ka taea te whakamarara anō i roto i te moata ka whakahaeretia e ngā tukanga e rua o te whakamakuku sima me te hanganga kiriata pūmua. Ko te hanganga o te pūnaha hiato o te whakamakuku sima me te hanganga kiriata pūmua ka oti i roto i ngā taahiraa e 4:
(1) I muri i te whakaranua o te paura rapa ka taea te whakamarara anō ki te moata sima, ka marara ōrite ki roto i te pūnaha;
(2) Ka whakatakotoria ngā matūriki pūmua ki runga i te mata o te ranunga matūriki sima waikura/kirikiri sima kore waikura;
(3) Ka hangaia e ngā matūriki pūmua he paparanga whakarārangi tonu, kiato hoki;
(4) I te wā o te tukanga whakamakuku sima, ka huihui ngā matūriki pūmua piripono hei kiriata tonu, ka honoa ngā hua whakamakuku hei hanga i tētahi hanganga whatunga katoa.
Ka taea e te whakamomona marara o te paura rapa ka taea te whakamarara anō te hanga i tētahi kiriata tonu kore-wai (tinana whatunga polymer) i muri i te whakamaroke, ā, ka taea e tēnei tinana whatunga polymer modulus iti te whakapai ake i te mahi a te sima; i te wa ano, i roto i te ngota polymer, ka tauhohe ētahi rōpū polar i roto i te sima ki ngā hua whakamakuku sima hei hanga piriti motuhake, hei whakapai ake i te hanganga ā-tinana o ngā hua whakamakuku sima, me te whakaiti me te whakaiti i te putanga mai o ngā kapiti. I muri i te tāpiri i te paura rapa ka taea te whakamarara anō, ka puhoi te tere whakamakuku tuatahi o te sima, ā, ka taea e te kiriata polymer te takai wāhanga, te takai katoa rānei i ngā matūriki sima, kia taea ai te whakamakuku katoa i te sima, kia taea ai te whakapai ake i ōna āhuatanga.
He mea nui te mahi a te paura rapa ka taea te whakamarara anō hei tāpiri ki te moata hanga. Mā te tāpiri i te paura rapa ka taea te whakamarara anō ki roto i te moata ka taea te whakarite i ngā momo hua moata pēnei i te piri taera, te moata whakamahana wera, te moata whakataurite-ake, te putty, te moata parai, te moata whakapaipai, te kaihoko honohono, te moata whakatika me te rauemi hiri ā-wai, me ētahi atu. Te whānuitanga o te tono me te mahi tono o te moata hanga. He pono, he raruraru urutau kei waenganui i te paura rapa ka taea te whakamarara anō me te sima, ngā ranunga me ngā ranunga, me aro nui ki ēnei i roto i ngā tono motuhake.
Wā tuku: Maehe-14-2023