CHINODEREDZA MVURA YEMAHARA (SMF)imhando yemagetsi inonyungudika mumvura ine anion yakawanda-polymer. SMF ine simba guru rekunyungudutsa uye inobvisa simende. SMF ndeimwe yenzvimbo dziri mumidziyo yekuderedza mvura yekongiri iripo. Zvinhu zvikuru ndeizvi: chena, mvura yakawanda, rudzi rwekupinza mhepo, chloride ion shoma haina ngura pasimbi, uye inogona kuchinjika zvakanaka nesimende yakasiyana-siyana. Mushure mekushandisa mudziyo wekuderedza mvura, simba rekutanga uye kupenya kwekongiri kwakawedzera zvakanyanya, hunhu hwekuvaka uye kuchengetedza mvura zvaive zviri nani, uye kugadziriswa kwemhepo kwakagadziriswa.
Kana kongiri yadonha, mamiriro akafanana anogona kuderedza zvakanyanya kusanganiswa kwemvura kunonzi high efficiency water reducing agent. Kana zvakadaro, kudonha kwekongiri, kusanganiswa uye kushandiswa kwemvura kunogona kuderedzwa neanopfuura 15%.
Kubudirira nhoroondo:Chizvarwa chekutanga chemushonga unoderedza mvura unoshanda zvakanyanya uye superplasticizer ine amine resin yakagadzirwa kutanga kwema1960. Nekuda kwekushanda kwemushonga unoderedza mvura unoshandiswa ne lignesulfonate mukupera kwema1930, inozivikanwawo se superplasticizer. Chizvarwa chechipiri chemushonga unoderedza mvura unoshanda zvakanyanya i amino sulfonate, kunyangwe zvichitevera nguva yechizvarwa chechitatu che superplasticizer - polycarboxylic acid series. Graft copolymer ine sulfonic acid ne carboxylic acid ndiyo inonyanya kukosha muchizvarwa chechitatu chemushonga unoderedza mvura unoshanda zvikuru, uye kushanda kwayo ndiyo mushonga unoderedza mvura unoshanda zvakanyanya.
Mhando huru:Kuderedza mvura kwakanyanya kunogona kusvika pa20%. Izvi zvinonyanya kuumbwa ne naphthalene series, melamine series uye water reduction agent, iyo naphthalene series ndiyo huru, ichiita 67%. Zvikuru, water reduction agents dzakawanda dzinobva pa naphthalene sezvinhu zvikuru. Zvichienderana nezviri mu naphthalene series superplasticizer, inogona kukamurwa kuita high concentration products (Na2SO4 content <3%), medium concentration products (Na2SO4 content 3%-10%) uye low concentration products (Na2SO4 content > 10%). Mazhinji naphthalene superplasticizer synthesis plants ane kugona kudzora zviri mu Na2SO4 pasi pe3%, uye mamwe mabhizinesi epamusoro anogona kutodzora zviri mu NA2SO4 pasi pe0.4%.
Naphthalene series yemushonga wekuderedza mvura ndiyo yakakura kwazvo munyika medu, ndiyo inonyanya kushandiswa mukuderedza mvura (inopfuura 70% yehuwandu hwemushonga wekuderedza mvura), iyo inoratidzwa nekuderera kwemvura (15% ~ 25%), isina mhepo, haina simba panguva yekuisa, inogona kushandiswa pamwe chete nezvimwe zvinhu zvakasiyana-siyana zvinowedzera, mutengo wacho wakachipawo. Naphthalene superplasticizer inowanzo shandiswa kugadzira kongiri ine kufamba kwakanyanya, simba rakawanda uye kushanda kwepamusoro. Kurasikirwa kwekongiri ne naphthalene superplasticizer kunokurumidza. Pamusoro pezvo, kuchinjika kwemushonga wekuderedza mvura ne naphthalene series kunofanirwa kuvandudzwa.
Zvivakwa:Mushonga wekuderedza mvura unoshanda zvakanyanya une simba guru rekupararira kwesimende, unogona kuvandudza kufamba kwesimende uye kudonha kwekongiri, ukuwo uchideredza kushandiswa kwemvura zvakanyanya, uye unowedzera kushanda kwekongiri zvakanyanya. Asi imwe superplasticizer inokurumidza kurasikirwa nekongiri, kusanganisa zvakanyanya kunobvisa mvura. Mushonga wekuderedza mvura unoshanda zvakanyanya hauchinje nguva yekuisa kongiri, uye une simba diki rekudzora kana dose yacho yakakura (kuiswa kwedose rakawandisa), asi haunonotsi kukura kwesimba rekutanga kwekongiri yakaoma.
Zvinogona kuderedza kushandiswa kwemvura zvakanyanya uye kuwedzera simba rekongiri pazera rakasiyana. Kana simba rayo rikaramba rakafanana, simende inogona kuponeswa ne10% kana kupfuura.
Huremu hwe chloride ion hudiki, hahuna ngura pasimbi. Hunogona kuwedzera kusapinda kwemvura, kuramba kuomeswa nechando uye kuramba kuomeswa kwekongiri, uye kuwedzera kugara kwenguva refu kwekongiri.
KUSHANDISA:
1, Yakakodzera marudzi ese ekuvaka kwemaindasitiri nezvivakwa, kuchengetedza mvura, kutakura, chiteshi chengarava, kugadzirwa kweinjiniya yemunicipal precast uye kongiri yakasimbiswa yakaiswa panzvimbo.
2, Yakakodzera simende yakasimba kwazvo, yakasimba kwazvo uye ine simba repakati, uye zvinodiwa zvesimba rekutanga, kuramba chando zvine mwero, simende yakakura yemvura.
3, Yakakodzera nhengo dzekongiri dzakagadzirwa kare dzekugadzirisa hutsi.
4, Yakakodzera mhando dzakasiyana dzezvinhu zvinosimbisa mvura (Master Batch).
Kurongedza: 25kg/Bhegi
Kuchengetedza: Chengeta munzvimbo yakavharwa zvakanaka, isingatsvedzeri chiedza, uye dzivirira kubva kuhunyoro.
Nguva yekutumira: Kurume-06-2023