Polycarboxylate water reducer (PCE) mumota yesimende

Polycarboxylate inoderedza mvura(PCE)ichizvarwa chitsva chemushonga unoderedza mvura unoshanda zvakanyanya une kushandiswa kwakanyanya uye kushanda kwakanakisa muzvinhu zvemazuva ano zvakagadzirwa nesimende. Unoshandiswa zvakanyanya mukongiri yakasanganiswa yakagadzirwa, dhaka rinozvienzanisa, zvinhu zvekugadzira, dhaka rekugadzirisa uye kongiri inoshanda zvakanyanya.

1. Maitiro ekuita

Polycarboxylate water reducer imhando yemushonga une mamorekuru akawanda unoratidzwa nemacheni epadivi epolyether nemacheni makuru ecarboxylic acid. Kugona kwayo kuderedza uye kuparadzira mvura kunobva pazvinhu zviviri:

1.1. Kudzinga kwemagetsi

Cheni huru yePolycarboxylate water reducer molecule ine huwandu hwakawanda hwema carboxyl groups (-COOH), ayo anoiswa muma ionized munzvimbo ine alkaline kuti aumbe carboxylate radicals (-COO⁻), ayo anonyungudutswa pamusoro pema cement particles, zvichiita kuti ma pieces acho ave ne negative charge imwechete, nokudaro achidzingana uye achikurudzira kupararira kwema cement particles.

1.2. Steric inhibition effect

Macheni emativi epolyether akadai sema polyoxyethylene groups (PEO) anodzivirira zvidimbu zvesimende kuti zvisaungane zvakare kuburikidza nekuvharirwa kwe steric, nokudaro zvichiwedzera kugara kwenguva refu kwekupararira. Hunhu uhwu huri nani zvakanyanya pane zvechinyakare zve naphthalene uye aliphatic water reducers.

2. Basa guru mudura resimende

2.1. Kuvandudza kuyerera kwemvura zvakanyanya

Kana ikachengetedza chiyero chemvura nesimende chisina kuchinja, PCE inogona kuvandudza kuyerera kwedhaka, zvichiita kuti zvive nyore kuvaka nekupararira zvakaenzana, kunyanya zvakakodzera kune dhaka rinozvienzanisa uye zvinhu zvekugadzira.

2.2. Deredza zvakanyanya kushandiswa kwemvura

PCE inogona kuderedza mvura inosanganiswa neinenge 20%-35% pasina kukanganisa kuyerera kwemvura, nokudaro ichivandudza huwandu uye simba remota uye kuwedzera kugara kwenguva refu.

2.3. Kuvandudza kuchengetwa kwemvura uye mashandiro ekuvaka

Nekuparadzira zvidimbu zvesimende zvakaenzana, PCE inogona kuderedza kubuda kwemvura nekupatsanurwa, zvichiita kuti dhaka rive rakagadzikana, izvo zvinobatsira pakugadzirisa nekuvandudza simba.

2.4. Kurudzira kunyoroveswa kwemvura nesimende

Kuderedza kuungana kwezvidimbu zvesimende uye kuzvibvumira kuti zvibatane nemvura zvizere zvichabatsira kuti mvura irambe yakafanana uye kuti simbi ikure nesimba rekutanga.

2.5. Kuvandudza hunhu hwemakanika

Nekuda kwehuwandu hwayo hwekuderedza mvura uye chimiro chayo chidiki, simende yakasanganiswa nePCE ine simba rekudzvanya uye kugonya, kunyanya musimbi ine simba guru.

3. Zvakanakira mashandiro

Kuderedza mvura zvine simba: Kana tichienzanisa nezvinoderedza mvura zvechinyakare zvine naphthalene uye zvine lignin, PCE ine mwero wepamusoro wekuderedza mvura uye kushanda kwayo kwakasimba.

Dosi shoma uye kushanda kwepamusoro: Kazhinji dosi inongova 0.1%-0.3% yezvinhu zvinosimbisa simende, izvo zvinogona kuita kuti mvura ideredzwe zvakanaka.

Kuenderana kwakanaka: Inogona kusanganiswa nemhando dzakasiyana dzesimende uye zvinhu zvakasanganiswa, uye inogona kugadziriswa zvakasiyana-siyana.

Kudzivirirwa kwezvakatipoteredza uye kusasvibiswa: Polycarboxylate water reducer chigadzirwa chegirini uye chine hushamwari kune zvakatipoteredza chinosangana nezvinodiwa nekuvandudzwa kwemazuva ano kwekuvaka.

4. Kushanda zvakanaka mumabasa anoshanda

4.1. Dhaka rinozvienzanisa

PCE inoita kuti dhaka rive nekuyerera kwakanaka uye kugona kuzvibatanidza, izvo zvakakodzera pakuenzanisa pasi, kuvharira uye kugadzirisa.

4.2. Kunamira mataira, dhaka repurasita rakatetepa

Kuvandudza kutaridzika kwechivakwa, kuwedzera kunamira kwechigadziko, uye kuderedza kutsemuka.

4.3. Kugadzirisa dhaka nemidziyo yekukwevera

Deredza chiyero chemvura nesimende, wedzera huwandu hwemvura uye kushanda kwesimba rekutanga, zvakakodzera mapurojekiti ane simba rakawanda uye zvinodiwa pakuyerera kwemvura yakawanda.

5. Nzira dzekudzivirira pakushandisa

5.1. Kudzora huwandu hwemushonga

Kuwanda kwemuyero kunogona kukonzera kuyerera kwemvura muhari, kubuda kwemvura kana nguva yakareba yekuisa mvura, izvo zvinoda kugadziriswa zvichienderana nebvunzo.

5.2. Kusanganiswa nezvimwe zvinhu zvakasanganiswa

PCE inofanira kuongororwa kuti inoenderana here nemidziyo inodzosera zvinhu kumashure, zvinhu zvinodzivirira mhepo, nezvimwewo kudzivirira kusawirirana pakushanda kwayo.

5.3. Kupesvedzera kwezvinhu zvakagadzirwa

Rudzi rwesimende, jecha rakatsetseka, tembiricha nezvimwe zvinhu zvine simba guru pakushanda kwePCE, uye chiyero chemusanganiswa chinofanira kugadziriswa zvichienderana nemamiriro chaiwo ari panzvimbo yacho.

5.4. Kuchengeta nekutakura

PCE yemvura inofanira kunge isina chando, isingatsvedzi nezuva, uye yakavharwa kuti ichengetwe, iine hupenyu hwemwedzi mitanhatu pasherufu; zvigadzirwa zveupfu zvinofanirwa kunge zvisingatsvedzi hunyoro.

Polycarboxylate water reducer ine basa guru mu simendeNekushanda kwayo kwepamusoro-soro kwekuderedza mvura, kupararira kwayo kwakanaka uye kuchengetedza purasitiki. Nekugadzirwa kwezvinhu zvekuvaka zvakasvibira uye dhaka rinoita basa rakanaka, dhizaini yekugadzira uye tekinoroji yekushandisa yePCE iri kuramba ichivandudzwa. Kushandiswa zvine musoro kwePCE hakungogone chete kuvandudza mashandiro edhaka, asiwo kubatsira kuzadzisa zvinangwa zviviri zvekuchengetedza simba nekuderedza kusvibiswa kwemhepo uye kuvandudza kunaka kwekuvaka.