Na ona ake ahuatanga whakamakuku me te hanganga tinana, ko te gypsum he taonga hanga tino pai, he maha nga wa e whakamahia ana i nga maakete whakapaipai o roto me nga whenua ke.Heoi, i te mea he tere te whakatakoto o te gypsum me te whakapakeke, ko te waa mahi ko te nuinga o te 3 ki te 30 meneti, he ngawari ki te whakaiti i te whakamahinga o te gypsum.Na reira, he mea nui ki te taapiri i te gypsum retarder.
Ahakoa ka whakarereketia e te kaitaraiwa te wa whakaroa o te gypsum, ka tino kino ano te kaha.
Nga painga o te gypsum retarder:
He iti ake te taapiri, he roa ake te wa whakaroa
Ko te pakeke ake i muri i te coagulation, te kore-paitini, te reka me te pai ki te taiao
1. Tuatahi whakaranuhia te paura gypsum hanga me te retarder, Yuhe hydroxypropyl methylcellulose me etahi atu taapiri kia rite, katahi ka taapirihia te onepu, te konupūmā taumaha, me ētahi atu, tāpirihia te onepu, te konupūmā taumaha ranei ka whakaoho mo te 15 meneti i mua i te tuku.(Tuhipoka: Na te rereke o te taumahatanga o nga rawa, ka puta he stratification i muri i te whakaoho mo te wa roa, ka pa ki te kounga o te hua.)
2. Mo etahi atu hua, penei i te gypsum pokepokea me te wai retarded retarded wai, ka taea e koe te tuku i te retarder ki roto i te wai i te tuatahi, katahi ka taapirihia hei whakamahi i muri i te rewa.
Nga whakatakotoranga whaitake o nga hua gypsum
Te raima raima taumata o raro:
Te paura gypsum parakore 300 kg
700 kg kirikiri awa pai
Hydroxypropyl methylcellulose 0.5-0.7 kg
Gypsum retarder 0.8-1 kg
Te raima whakapiri (momo whakamaroke puhoi):
Te paura gypsum parakore 800 kg
Te paura konupūmā taumaha 200 kg
Hydroxypropyl methylcellulose 2.5 kg
Retarder 2.5 kg
Whakaoti pani pani (putty gypsum):
Te paura gypsum parakore 500-700 kg
Te paura konupūmā taumaha 300-500 kg
Hydroxypropyl methylcellulose 2-2.5 kg
Ko te gypsum retarder 1.5-2.1 kg
pani pani:
700 kg o te paura gypsum parakore
Te paura konupūmā taumaha 300 kg
Hydroxypropyl Cellulose 2.5kg
Te paura taherapa marara 2kg
Ko te gypsum retarder 2 kg
Te wa tuku: Apr-14-2023