Nzira yeKuvandudza Kushanda Kwekongiri?

Kuburikidza nekuenzanisa kwekuyedza, kuwedzera kwe cellulose ether kunogona kuvandudza zvakanyanya kushanda kwekongiri yakajairika uye kunatsiridza kupomba kwekongiri inopomba. Kubatanidzwa kwe cellulose ether kuchaderedza simba rekrete.

Mazwi akakosha: cellulose ether; kongiri kushanda; pumpability

1.Nhanganyaya

Nekuenderera mberi kwekusimudzira nzanga, kudiwa kwekongiri yekutengeserana kuri kuwedzera. Pashure pemakore anopfuura gumi ebudiriro nokukurumidza, kongiri yezvokutengeserana yapinda munhano yakati kurei. Yakasiyana-siyana yekutengeserana kongiri inosangana nezvinodiwa zveakasiyana mapurojekiti. Zvisinei, mubasa chairo, takaona kuti kana tichishandisa kongiri inopombi, kazhinji nekuda kwezvikonzero zvakadai sekushaya simba kwekongiri uye kusagadzikana kwejecha rejecha, rori yepombi ichavharwa, uye nguva yakawanda uye simba revanhu richaparadzwa panzvimbo yekuvaka. uye kusanganisa chiteshi, izvo zvinotokanganisa chirongwa. kunaka kwe. Kunyanya kune yakaderera-giredhi kongiri, kushanda kwayo uye kupomba kwakaipisisa, kunowedzera kusagadzikana, uye mukana wepombi plugging uye kuputika kwakakwira. Kazhinji, kuwedzera chiyero chejecha uye kuwedzera cementitious zvinhu zvinogona kuvandudza mamiriro ari pamusoro, asi zvakare inovandudza kongiri mhando. mutengo wezvinhu. Muzvidzidzo zvakapfuura, zvakaonekwa kuti kuwedzera kweselulosi ether kune kongiri yakafukidzwa kuchaburitsa nhamba huru yeakavharika mabhuru madiki emhepo mumusanganiswa, iyo inowedzera fluidity yekongiri, inovandudza kuparara kwekuchengetedza, uye panguva imwechete inotamba. basa mukuchengetedza mvura uye kunonoka mudhaka resimende. Naizvozvo, kuwedzera cellulose ether kune yakajairika kongiri kunofanirwa kuita zvakafanana. Zvadaro, kuburikidza nemiedzo, pasi pemamiriro ekugara musanganiswa ratio, shoma shoma ye cellulose ether inowedzerwa kuti ione kushanda kwemusanganiswa, kuyera kunyorova kwehuwandu, uye kuedza kusimba kwesimba rekongiri 28d. Izvi zvinotevera maitiro nemigumisiro yekuedza.

2. Kuedza

2.1 Edzai zvigadzirwa

(1) Simende inonzi Yufeng brand PO42.5 simende.

(2) Iyo inoshanda mineral admixtures inoshandiswa ndeye Laibin Power Plant Kirasi II inobhururuka madota uye Yufeng S75 kirasi yemaminerari poda.

(3) Iyo yakanaka aggregate ijecha rakagadzirwa nemuchina wakagadzirwa neGuangxi Yufeng Concrete Co., Ltd., ine fineness modulus ye2.9.

(4) Coarse aggregate ndeye 5-25 mm inoenderera graded limestone inogadzirwa neYufeng Blasting Company.

(5) Iyo inodzikisira mvura ndeye polycarboxylate yakakwirira-inoshanda mvura inoderedza AF-CB inogadzirwa neNanning Nengbo Company.

(6) Iyo cellulose ether ndeye HPMC inogadzirwa neKima Chemical Co., Ltd, ine viscosity ye200,000.

2.2 Nzira yekuedza uye maitiro ekuedza

(1) Pasi pechirevo chekuti mvura-binder reshiyo uye jecha reshiyo inopindirana, ita bvunzo neakasiyana mareshiyo ekusanganisa, kuyera kudonha, kudonha-kwenguva-kudonha, uye kuwedzera kwemusanganiswa mutsva, kuyera huwandu hwakawanda hwesample yega yega, uye cherechedza kusanganiswa kwehuwandu. Kushanda kwekushanda kwezvinhu uye kuita rekodhi.

(2) Mushure mekudonha kwekurasikirwa kwekuedzwa kweawa ye1, musanganiswa wemuenzaniso wega wega wakasanganiswa zvakare uye wakatakurwa mumapoka e2 zvichiteerana, uye kuporeswa kwemazuva manomwe nemazuva makumi maviri nemasere pasi pemamiriro akajairwa.

(3) Kana boka re7d rasvika pazera, ita bvunzo yekutyora kuti uwane hukama pakati peyero uye 7d simba, uye uwane iyo dosage kukosha x nekuita basa rakanaka uye simba rakawanda.

(4) Shandisa dosi x kuita bvunzo dzekongiri nemavara akasiyana, uye enzanisa kusimba kweanoenderana asina chinhu samples. Tsvaga kuti simba rekongiri remagiredhi akasiyana rakakanganiswa sei ne cellulose ether.

2.3 Miedzo mhinduro uye ongororo

(1) Munguva yekuyedza, tarisa mamiriro uye kuita kwemusanganiswa mutsva wemasampuli ane madosi akasiyana, uye tora mafoto marekodhi. Mukuwedzera, iyo mamiriro uye kushanda kwekuita tsanangudzo yemuenzaniso wega wega wemusanganiswa mutsva inonyorwa zvakare.

Kubatanidza mamiriro uye kuita kwemusanganiswa mutsva wemasamples ane madosi akasiyana uye tsananguro yenzvimbo uye zvivakwa zvemusanganiswa mutsva, zvinogona kuwanikwa kuti boka risina chinhu risina cellulose ether rine general workability, kubuda ropa uye kusasimba kwekuvhara . Apo cellulose ether yakawedzerwa, sampuli dzose dzakanga dzisina kubuda ropa, uye kushanda kwakagadziriswa zvakanyanya. Kunze kwemuenzaniso weE, mamwe mapoka matatu aive nemvura yakanaka, kuwedzera kukuru, uye aive nyore kupomba nekuvaka. Kana iyo dosi inosvika pa1‰, musanganiswa unova viscous, chiyero chekuwedzera chinoderera, uye fluidity iri pakati. Naizvozvo, iyo dosage ndeye 0.2‰～0.6‰, iyo inogona kuvandudza zvakanyanya kushanda kwekushanda uye kupomba.

(2) Munguva yekuedza, kuwanda kwehuwandu hwemusanganiswa hwakayerwa, uye hwakaputsika mushure memazuva makumi maviri nemasere, uye mimwe mitemo yakawanikwa.

Inogona kuonekwa kubva kuhukama huri pakati pehuwandu hwehuwandu hwehuwandu / simba uye huwandu hwehuwandu hwehuwandu / kusimba kwemusanganiswa mutsva uye chiyero chekuti huwandu hwehuwandu hwemusanganiswa hutsva hunoderera sezvo dosage ye cellulose ether inowedzera. Simba rekumanikidza rakadzikirawo nekuwedzera kwe cellulose ether yemukati. Zvinoenderana nekongiri yefuro yakadzidzwa naYuan Wei.

(3) Kuburikidza nemiedzo, inowanikwa kuti dosi inogona kusarudzwa se 0.2‰, iyo isingangogone kuwana kushanda kwakanaka kwekushanda, asi zvakare kuve nekurasikirwa kwesimba kushoma. Zvadaro, dhizaini kuedza C15, C25, C30, C35 4 mapoka asina chinhu uye 4 mapoka zvakateerana akasanganiswa ne0.2‰cellulose ether.

Tarisa kushanda kwekushanda kwemusanganiswa mutsva uye uenzanise nemuenzaniso usina chinhu. Wobva waisa mold yekurapa kwakajairika, uye pwanya mold kwemazuva makumi maviri nemasere kuti uwane simba.

Panguva yekuedza, zvakaonekwa kuti kushanda kwemasampuli matsva emusanganiswa akasanganiswa ne cellulose ether yakavandudzwa zvikuru, uye hapazove nekuparadzaniswa kana kubuda ropa zvachose. Zvakadaro, misanganiswa yakaderera-giredhi yeC15, C20, uye C25 mumuenzaniso usina chinhu zviri nyore kupatsanura uye kubuda ropa nekuda kwehuwandu hushoma hwedota. C30 uye pamusoro mamakisi akavandudzawo. Inogona kuonekwa kubva kune data mukuenzanisa kwesimba remavara akasiyana akasanganiswa ne2‰cellulose ether uye sampuli isina chinhu iyo simba rekongiri rakaderedzwa kusvika kumwero wakati kana cellulose ether yawedzerwa, uye ukuru hwekuderera kwesimba kunowedzera nekuwedzera kweiyo label.

3. Mhedziso yekuedza

(1) Kuwedzera cellulose ether kunogona kuvandudza kushanda kwekongiri yakaderera uye kunatsiridza kupomba.

(2) Nekuwedzerwa kwe cellulose ether, kuwanda kwekongiri kunoderera, uye iyo yakakura, iyo idiki iyo yakawanda density.

(3) Kubatanidza cellulose ether kuchaderedza simba rekrete, uye nekuwedzera kwezviri mukati, chiyero chekuderedza chichawedzera.

(4) Kuwedzera cellulose ether kunoderedza simba rekrete, uye nekuwedzera kwegiredhi, ukuru hwekuderera huchawedzera, saka haina kukodzera kushandiswa mugiredhi repamusoro kongiri.

(5) Kuwedzera cellulose ether inogona kushandiswa kuvandudza kushanda kweC15, C20, uye C25, uye mhedzisiro yacho yakanaka, nepo kurasikirwa kwesimba hakusi kukuru. Iyo yekupomba inogona kuderedza zvakanyanya mukana wekuvharika kwepombi uye kugadzirisa kushanda zvakanaka.