He iti noa ngā herenga mō te whakapai ake i te mahi a te whakapiri gypsum mā te tāpiri kotahi. Mēnā e hiahia ana te mahi a te moata gypsum kia pai ai ngā hua, kia tutuki ai hoki ngā whakaritenga tono rerekē, me whakamahi ngā tāpiri matū, ngā tāpiringa, ngā whakakī me ngā momo rauemi hei whakakotahi me te whakakī i a rātou anō i runga i te pūtaiao me te whai tikanga.
1. Te matū whakakōkī
Ko te nuinga o te wā, ko te whakapūmau i te whakapūmau ko te whakaroa me te whakapūmau. I roto i te moata ranunga maroke gesso, ko te hua e whakamahi ana i te gesso kua tunua hei hanga i te katoa e whakamahi ana i te kaihoko whakapūmau whakaroa, te gesso waikore, te hua rānei e whakamahi ana i te gesso wai rua hei hanga tika me whakatairanga i te kaihoko whakapūmau.
2. Whakaroa
Mā te tāpiri i te aukati ki ngā rauemi hanga maroke o te gypsum, ka aukatia te tukanga whakamakuku o te gypsum haurua-wai, ā, ka roa ake te wā whakapakeke. He rerekē ngā āhuatanga whakamakuku o te pāreti gypsum, tae atu ki te hanganga āhua o te pāreti gypsum, te pāmahana o te rauemi gypsum, te pai o te matūriki, te wā whakatakoto me te uara pH o te hua kua oti. He pānga motuhake tō ia āhuatanga ki te pānga o te aukati, nō reira he rerekētanga nui te nui o te kaiāwhina aukati i raro i ngā āhuatanga rerekē. I tēnei wā, ko te aukati motuhake gypsum o te kāinga pai ake ko te aukati pūmua metamorphic (pūmua nui), he pai ōna painga o te utu iti, te roa o te wā aukati, te iti o te ngaronga kaha, te hanganga pai, te roa o te wā whakatuwheratanga me ētahi atu. I roto i te momo raro o te gypsum stucco, ko te nui o te whakaritenga i te nuinga o te wā kei roto i te 0.06% ~ 0.15%.
3. Te matū whakakōkī
Ko te whakateretere i te wā whakaoho o te parapara me te whakaroa i te tere whakaoho o te parapara tētahi o ngā tikanga ā-tinana hei whakatairanga i te totoka. Ko ngā matū totoka e whakamahia whānuitia ana i roto i ngā rauemi hanga paura gypsum kore wai ko te pāhare pākawa waro, te pāhare pākawa waro silicate, te whanariki me ētahi atu waikawa. Ko te horopeta he 0.2% ~ 0.4%.
4. Kaihoko pupuri wai
Kāore e taea e ngā rauemi hanga ranunga maroke Gesso te wehe i te wai tiaki. Hei whakapai ake i te tere pupuri wai o te paru gypsum, me whakarite kia roa te noho o te wai i roto i te paru gypsum kia pai ai te makuku me te whakapakeke. Ko te whakapai ake i te hanganga o ngā rauemi hanga paura gypsum, te whakaiti me te aukati i te wehewehe me te toto o te paru gypsum, te whakapai ake i te rere o te paru e iri ana, te whakaroa i te wā whakatuwheratanga, te whakaoti rapanga kounga hangarau pēnei i te pakaru me te pahu kau, kāore e taea te wehe i te kaihoko pupuri wai. Ko te pai o te kaihoko pupuri wai e whakawhirinaki ana ki tōna marara, te tere wairewa, te hanga, te pumau wera me te matotoru, ko te pupuri wai te tohu nui rawa atu.
Kaihoko pupuri wai cellulose ether
I tēnei wā, ko te hydroxypropyl methyl cellulose te mea e whakamahia whānuitia ana i te mākete, ā, whai muri ko te methyl cellulose, me te carboxymethyl cellulose. He pai ake ngā āhuatanga whānui o te hydroxypropyl methyl cellulose i te methyl cellulose. He nui ake te pupuri wai o te hydroxypropyl methyl cellulose i te carboxymethyl cellulose, engari he kino ake te pānga matotoru me te pānga here i te carboxymethyl cellulose. I roto i ngā rauemi hanga whare maroke gypsum, ko te nui o te hydroxypropyl me te methyl cellulose kei roto i te awhe o te 0.1% ~ 0.3%, ā, ko te nui o te carboxymethyl cellulose kei roto i te awhe o te 0.5% ~ 1.0%.
Māngai pupuri wai māngaro
Ko te momo māngaro hei tiaki i te wai, e whakamahia ana i te gesso hei putty i roto i te tauira stucco gesso, ka taea te whakakapi i te momo cellulose wāhanga, te momo cellulose katoa rānei hei tiaki i te wai. Ka taea te whakapai ake i te mahi, te hanganga me te ōritetanga o te paru mā te tāpiri i te māngaro pupuri wai māngaro ki ngā rauemi hanga maroke gypsum. Ko ngā hua māngaro pupuri wai māngaro e whakamahia whānuitia ana ko te māngaro manioka, te māngaro kua whakakātenetia, te māngaro carboxymethyl, me te māngaro carboxypropyl. Ko te horopeta o te momo māngaro tiaki wai kia 0.3% ~ 1% te nuinga o te wā, ki te nui rawa te horopeta ka puta he harore i raro i te taiao haukū, ka pā tika ki te kounga o te kaupapa.
③ He momo piri hei pupuri wai
Ka taea hoki e ētahi piripiri inamata te whai wāhi nui ake ki te pupuri wai. Pērā i te paura waipiro polyvinyl 17-88, 24-88, te kapia matomato me te kapia guar e whakamahia ana hei hono i te gypsum, te putty gypsum, te kāpia whakamahana gypsum me ētahi atu rauemi hanga whare maroke gypsum, i roto i tētahi nui o te pouaka, ka taea te whakaiti i te nui o te kaihoko pupuri wai cellulose. Ina koa i roto i te gypsum piri tere, ka taea e ia te whakakapi i ngā ethers cellulose i ētahi wā.
(4) Ngā rauemi pupuri wai kore-ora
Mā te whakamahi i ētahi atu rauemi pupuri wai i roto i ngā rauemi hanga maroke gypsum ka taea te whakaiti i te nui o ētahi atu rauemi pupuri wai, te whakaiti i te utu o ngā hua, me te whakapai ake i te mahi me te hanganga o te paru gypsum. Ko ngā rauemi pupuri wai kore-waro e whakamahia whānuitia ana ko te bentonite, te kaolin, te diatomite, te paura zeolite, te paura perlite, te uku attapulgite, me ētahi atu.
5. Piripiri
He iti iho te pai o te whakamahinga o te piri i roto i ngā rauemi hanga maroke gypsum i te whakamahi i te kaiāwhina pupuri wai me te kaiāwhina whakaroa. Kāore e taea e te kaiāwhina Gesso te wehe atu i te kaiāwhina whakaōrite-ake, te kaiāwhina gesso, te kaiāwhina whakakī gesso, te kaiāwhina tiaki wera gesso te waiho i te kaiāwhina.
Paura rapa ka taea te whakamarara anō:
He whānuitia te whakamahinga o te paura rapa ka taea te whakamarara anō i roto i te moata whakaōrite-ake o te gypsum, te kāpia whakamahana gypsum, te putty whakapiri gypsum me ētahi atu. Ina koa i roto i te moata whakaōrite-ake o te gypsum, ka taea e ia te whakapai ake i te matotoru o te paru, te pai o te rere, te whakaiti i te paparanga, te karo i te toto, te whakapai ake i te ātete ki te pakaru me ētahi atu, ā, he mea nui anō hoki. Ko te whakamahinga he 1.2% ~ 2.5%.
Waipiro polyvinyl inamata:
I tēnei wā, ko te nui o te waipiro polyvinyl rewa inamata kei te mākete ko te 24-88, 17-88 te hua o ngā tauira e rua, e whakamahia ana i roto i te pāreti piri, te gesso, te kāpia tiaki wera gesso, te pāreti stucco me ētahi atu hua, ko te inenga he 0.4% ~ 1.2% te nuinga.
Ko te kāpia guar, te gelatin mara, te carboxymethyl cellulose, te māngaro ether me ētahi atu he piripiri me ngā mahi here rerekē i roto i ngā rauemi hanga maroke gypsum.
6. Whakamātotoru
Ko te whakamātotoru te kaupapa matua hei whakapai ake i te mahi me te rere o te paru gypsum, he rite ki te piripiri me te kaihoko pupuri wai, engari kāore i te tino pai. He pai te pānga o ētahi hua kaihoko whakamātotoru ki te whakamātotoru, engari kāore i te tino pai te kaha piri me te tere pupuri wai. I te wā e hanga ana i ngā rauemi hanga paura maroke gypsum, me whai whakaaro nui ki te pānga matua o te ranunga kia pai ake ai te tono me te tika ake. Ko ngā hua whakamātotoru e whakamahia whānuitia ana ko te polyacrylamide, te kapia matomato, te kapia guar, te carboxymethyl cellulose.
7. Kaihoko whakauru hau
Ko te kaiāwhina hau e mōhiotia ana ko te kaiāwhina pahuka, e whakamahia ana i roto i te kāpia whakamahana gypsum, te kaiāwhina pāreti me ētahi atu rauemi hanga whare maroke gypsum. Ka āwhina te kaiāwhina hau (kaiāwhina pahuka) ki te whakapai ake i te hanganga, te ātete ki te pakaru, te ātete ki te huka, te whakaiti i te toto me te wehewehe, ko te horopeta he 0.01% ~ 0.02%.
8. Kaiwhakakore huka
He maha ngā wā ka whakamahia te kai whakakore huka i roto i te moata whakaōrite-whaiaro gesso, ka taea te whakakī me te putty gesso, ka taea te whakanui ake i te matotoru o te penupenu rauemi, te kaha, te ātete ki te wai, te taumahatanga o te whakapiripiri, ko te horopeta he 0.02% ~ 0.04%.
9. Kaiwhakaiti wai
Ka taea e te matū whakaiti wai te whakapai ake i te rere o te paru gesso me te kaha o te tinana whakapakeke gesso, i te nuinga o te wā i roto i te moata whakataurite-ake gesso, stucco gesso. I tēnei wā, ko te matū whakaiti wai ā-whare ko te matū whakaiti wai whakaroa waikawa polycarboxylic, te matū whakaiti wai tino pai melamine, te matū whakaiti wai tino pai pūnaha tī, te matū whakaiti wai lignosulfonate e ai ki te pānga rere me te kaha. Haunga te whakamahinga wai me te kaha, me aro ki te wā whakatakoto me te ngaronga rere o ngā rauemi hanga gypsum ina whakamahia te matū whakaiti wai ki roto i ngā rauemi hanga maroke gypsum.
10. Kaiwhakamarumaru ā-wai
Ko te hapa nui o ngā hua gypsum ko te ātete wai kore. Ko te wāhi he nui ake te haumākū o te hau, he nui ake ngā whakaritenga ātete wai mō te moata maroke gypsum. I te nuinga o te wā, ka whakapai ake te ātete wai o te tinana gypsum whakapakeke mā te tāpiri i te ranunga waipēhi. I raro i te āhua o te wai mākū, te wai mākū rānei, ka taea e te tauwehenga whakangawari o te tinana gypsum whakapakeke te eke ki te 0.7, kia tutuki ai ngā whakaritenga o te kaha o te hua. Ka taea hoki te whakamahi i ngā tāpiringa matū hei whakaiti i te wairewa o te gypsum (arā, te whakanui ake i te tauwehenga whakangawari), te whakaiti i te mimiti o te gypsum ki te wai (arā, te whakaiti i te mimiti wai) me te whakaiti i te horo o te tinana gypsum whakapakeke (arā, te wehenga wai) ara ātete wai. Kei roto i te kaihoko ātete wai gypsum te ammonium borate, te methyl sodium silicate, te silicone resin, te ware piro miraka, he pai ake te pānga me te kaihoko ātete wai silicone emulsion.
11. Kaiwhakaoho hohe
Ka taea te whakahohe i te gypsum kore wai māori me te matū kia piri, kia kaha hoki, kia pai ai mō te hanga rauemi hanga whare maroke gypsum. Ka taea e te kaiwhakaoho waikawa te whakatere i te tere o te makuku wawe o te gypsum kore wai, te whakapoto i te wā whakatakoto me te whakapai ake i te kaha wawe o te tinana gypsum whakapakeke. He iti noa te pānga o te kaiwhakaoho kawakore ki te tere o te makuku wawe o te gypsum kore wai, engari ka taea e ia te whakapai ake i te kaha o muri mai o te tinana gypsum whakapakeke, ā, ka taea te whakauru ki te rauemi sima wai i roto i te tinana gypsum whakapakeke, e whakapai ake ana i te ātete wai o te tinana gypsum whakapakeke. He pai ake te pānga o te kaiwhakaoho matū waikawa-pūtake i te kaiwhakaoho waikawa kotahi, taketake rānei. Kei roto i ngā kaiwhakaoho waikawa ko te konutai konutai, te konutai whanariki, te konutai whanariki me ētahi atu. Kei roto i ngā kaiwhakaoho kawakore ko te raima tere, te sima, te sima kinker, te dolomite kua whakakōhuatia me ētahi atu.
Hinu whakahinuhinu Thixotropic
Ka whakamahia te hinu whakahinuhinu Thixovariable i roto i te gypsum whakataurite-ake, i te gypsum stuccoing rānei, ka taea te whakaiti i te ātete rere o te moata gypsum, te whakaroa i te wā whakatuwheratanga, te aukati i te paparanga me te taunga o te paru, kia pai ai te whakahinuhinu me te hanganga o te paru, me te hanga i te hanganga tinana whakapakeke kia ōrite, kia kaha ake ai te mata.
Wā tuku: Mei-25-2022