Te Whakanui i te Mahi o te Mota Angiangi me te Grout

He mea hanga kiriata te paura pūmua ka taea te whakamarara anō (RDP) e whakarerekē ana i te mahi a ngā moata taera me ngā moata sima. Mā te mahi hei here tuarua, ka whakanui ake te RDP i te kaha o te here ki ngā papa, ka whakarei ake i te ngāwari ki te ātete i te pakaru, ka whakapai ake i te pupuri wai mō te wā tuwhera roa, ā, ka arotau i te rheology mō te tono maeneene ake.

Ka hangaia ngā paura pūmua ka taea te whakamaroke anō mā te whakamaroke i te pūmua whakamomona—ko te nuinga he vinyl acetate–ethylene (VAE) he kiriaku rānei—kia puta he paura rere noa, ka hoki ki te whakamomona pūmua pumau ina pā ki te wai. I roto i ngā pūnaha sima, ka honoa ēnei kiriata pūmua hou ki ngā hua wai hei hanga i tētahi whatunga pakari, ngāwari hoki e whakarei ake ana i ngā tawhā mahi maha.

Te Mahi RDP i roto i ngā Mota Tautuhi-Angiangi

1. Piringa Pai Rawa

Ka mahi te RDP hei here tuarua i te taha o te sima, e whakapai ake ana i te kaha o te here ki ngā papa pēnei i te raima, te papa sima, me te papa muri gypsum—e whakaiti ana i te mōrearea o te wehewehe tāera ahakoa i raro i te ahotea wera, ahotea ā-mīhini rānei.

2. Ngāwari me te Ātete Ngatata

Ka whakawhiwhia e te kiriata pūmua te ngāwari ki te anga moata, ka taea ai e te paparanga angiangi te whakauru i te nekehanga o te papa me te whakawhānui wera me te kore e pakaru.

3. Te Pupuri Wai me te Wā Tuwhera Pai Ake

Mā te whakaiti i te tere o te ngaronga wai i te wā e whakatakotoria ana, ka roa ake te mahi a ngā moata kua whakarerekētia e te RDP, ka nui ake te wā mō ngā kaiwhakauru ki te keri me te whakatikatika i ngā taera.

4. Te Ātete Rheology me te Sag i Arotauhia

Ka whakarei ake te RDP i te whanonga thixotropic o te moata—ka puta he ranunga kirimi, kāore e hinga, e piri pai ana ki ngā pakitara me ngā tuanui me te kore e piko.

Ngā Mahi RDP i roto i ngā Grouts

1. Ngā Here Kaha Ake, Pūmau Ake

I roto i ngā grout sima, ka whakapakari te RDP i te piri ki ngā taha o te taera me ngā mata o ngā hononga, ka whakaiti i te rahunga o te grout me te whakapai ake i te pumau whānui o ngā hononga.

2. Te Whakaiti i te Whakaiti me te Ngatata

Ka whakaitihia e te whatunga pūmua te mimiti maroke, ka hua ake he rārangi kūmara ātete-ngatata e mau tonu ana te āhua ōrite i roto i te wā.

3. Te Ātete ki te Wai me te Para

He iti ake te pūngao o ngā grout kua whakarerekētia e te RDP, ā, he pai ake te ātete ki te makuku, ā, he iti ake hoki te ngawari ki te poke i ngā wāhi maku pērā i ngā kaukau me ngā puna kaukau.

4. Ngāwari o te Whakamahinga me te Horoi

Mā te pai ake o te kirihou me te ōritetanga ka māmā ake te whakamahi me te horoi i ngā grouts whakarei-RDP, ka tere ake te tāutanga me te whakapai ake i te kounga o te whakaotinga.

Te Kōwhiri i te RDP Tika

• Momo Pūmua: Kōwhiria ngā RDP e hangai ana ki te VAE mō te piri taurite me te ngāwari; he tino pai ngā RDP kiriaku mō ngā tono mahi teitei, mō ngā tono o waho rānei.
• Aratohu Inenga: Ko te auau whakaurunga noa kei waenga i te 4–8 kg mō ia 100 kg o te moata maroke, te moata rānei, engari e taunakihia ana kia arotauhia mā roto i ngā whakamātautau taiwhanga.
• Te Kounga me te Whakatutukitanga: Me whakarite kia mau tonu te kaiwhakarato RDP i ngā mana whakahaere tohatoha rahi matūriki tino pakari, ā, kia tutuki hoki i ngā paerewa ahumahi (ANSI A118.4/A118.11 mō ngā huinga angiangi, ANSI A118.6 mō ngā grouts).
• Tautoko Hangarau: Mahi tahi me ngā kaihanga e whakarato ana i te āwhina hanga, ngā raraunga mahi, me te tautoko i te papaanga hei whakatikatika i ō ranunga.

He mea nui te whakauru i te RDP kounga teitei ki roto i ngā moata me ngā grout angiangi kia pakari, kia ngāwari, kia ātete hoki ki te wai. Mā te mārama ki te mahi a te RDP—mai i te piri me te ngāwari ki te rheology me te pupuri wai—ka taea e ngā tohunga ahumahi te whiriwhiri i te tāpiri polymer me te horopeta tino pai hei whakatutuki i ngā whakaritenga kaupapa me te whakarato i te mahi pumau. Mō ngā otinga RDP ritenga me ngā aratohu hangarau taipitopito, kōrero ki tētahi kaihanga RDP rongonui i tēnei rā.