Lightweight Concrete Additives | High-Performance Foaming Agents for Cellular Concrete
Matambudziko akajairika mukushandiswa kwepolycarboxylic acid admixtures
Mukuita kwekushandisa polycarboxylic plasticity, pane dzimwe nguva vanosangana nenyaya dzakadaro, uye mamwe matambudziko haasati asangana pakushandisa mishonga yechinyakare yekudzikisa mvura. Semuyenzaniso, dzimwe nguva fekitari inodonha, fluidity, uye kuchengetedza mvura zvakanaka, asi zviitiko zviviri zvakanyanyisa zvinoitika mushure menguva yakati.
Chero musanganiswa wekongiri unova wakaoma kwazvo, uye kubuda kunorwadza, kana kubuda ropa kwakanyanya, kupatsanurwa, uye delamination iri serious.
Pane zvikonzero zvakawanda zvematambudziko mukushandiswa kwe polycarboxylic acid kongiri yepurasitiki. Kune rimwe divi, mhando yepolycarboxylic acid yekudzikisa mvura mumiririri haina kugadzikana, uye zvakasiyana-siyana zvekugadzira mbishi zvinhu zvinokonzera kuchinja kukuru muchigadzirwa. The technical level, kugadzirwa, uye maitiro ekudzora maitiro e polycarboxylic acid inoderedza mvura musanganiswa mabhizinesi ekugadzira haana kuve nechokwadi chemhando.
Pane rimwe divi, kuchinja kwekongiri mbishi zvinhu zvakakonzera shanduko yekuchinja ne polycarboxylic acid,
Ndapota tsanangura zvinotevera:
(1) simende. Izvo zvemakemikari zvinoumba sement, rudzi rwegypsum, kugaya zviyamuro, huwandu hwezvinhu zvinoshanda uye zvisingashande zvakasanganiswa, alkali content, fineness, uye tembiricha panguva yekushandiswa zvese zvinokanganisa kuchinjika kwepolycarboxylic acid mvura inoderedza. Dzimwe nguva shanduko diki dzinogona kukonzera shanduko huru mumidziyo chaiyo. Naizvozvo, hazvina kukodzera kutsiva simende kazhinji mukugadzirwa chaiko. Kusarudza simende ine hunhu hwakavimbika uye yakagadzikana mhando chinhu chinodiwa chekongiri yemhando yekusimbisa.
(2) Iyo madhaka emukati akaomarara uye akakwana aggregates ane yakakosha pesvedzero pakuchinjika kwepolycarboxylic acid mvura inoderedza.. Sezvo madhaka emukati meaggregates ari kuramba achiwedzera, iyo rheological properties yekrete ichave yakapetwa kaviri, zvichikonzera kusanganisa kongiri. Material quality control inonetsa.
(3) Kurasikirwa kwekudzima uye kunaka kwemusanganiswa (mineral powder, kubhururuka madota) zvakare inokanganisa kuchinjika kwepolycarboxylic acid yekudzikisa mvura mumiririri. Apo kuwanda kwekupisa kurasikirwa kukuru, iyo polycarboxylic acid polycarboxylate superplasticizers ichave adsorbed, kukonzera Kudonha kwekudonha kwekongiri musanganiswa kunokurumidza.
Chengetedzo kana uchishandisa polycarboxylic acid superplasticizer admixture
(1) Kudzora kunonzwisisika kwekushandiswa kwemvura
Polycarboxylic acid superplasticizers vanonyanya kufunga nezvekushandisa mvura, kunyanya kana uchishandisa superplasticizers ine yakakwirira yakasimba yemukati. Munguva yekuedza uye kugadzira maitiro, zvakaonekwa kuti dzimwe nguva kushandiswa kwemvura kwakawedzera zvishoma ne1kg ~ 3kg, uye musanganiswa wekongiri ungave nekubuda ropa kwakanyanya, akaunganidza matombo akanga aonekwa, ndokubata zasi. Naizvozvo, mukugadzira, kune rumwe rutivi, kushandiswa kwemvura kwebato rimwe chete kunodzorwa zvakasimba, uye hunyoro hwejecha nematombo hunoverengwa nemazvo. Ijecha richangoshambidzwa rinofanira kusara kwenguva yakati rebei roshandiswa kana mwando wacho wanyatsogadzikana. Pane rimwe divi, yakaderera yakasimba yemukati polycarboxylic acid mvura inoderedza mumiririri inoshandiswa kuderedza kunzwa.
(2) Shandisa huwandu hunonzwisisika hwepolycarboxylic acid
Chiyero chakakodzera chinotarwa kuburikidza nekuedzwa panguva yekushandiswa. Kana dosage yakaderera, kudonha kwekongiri kuchengetedza kwakashata, kurasikirwa kwekudonha kunokurumidza, uye fluidity inova murombo. Kana dosage yakawandisa, musanganiswa wekongiri ungangokonzera kubuda ropa kwakanyanya, rusarura, Tora pasi. Pamberi pekugadzirwa, iwe unofanirwa kuyedza iyo yakakwana yekucheka-munzvimbo yekushandiswa kwemvura kongiri uye huwandu hwepolycarboxylic acid plasticizer uye superplasticizer agent., ndizvo, huwandu hwakanyanya hwemvura uye musanganiswa. Panguva imwe, teerera kune kugona kushanduka kwezvinhu zvakabikwa uye kusanganiswa kwe polycarboxylic acid mumiriri. Kukanganisa kwehuwandu. Izvo zvigadzirwa zvinoshandiswa mupurojekiti zvinofanirwa kushandiswa muyedzo kufambisa kutonga kwekugadzira. Kana zvakakodzera, the site construction conditions should e simulated according to the construction requirements.
(3) Dare to break the traditional thinking mode
When formulating high-strength grades, we strive to overcome the problem of using more cement and fewer mineral admixtures. We believe that this is safe, and the strength will be higher. Otherwise, the amount of cement tends to be thick, and the strength of the concrete develops quickly in the early stage, and the growth in the later period is slow or even not. Sometimes adding 30kg of cement is about the same strength as concrete without adding cement, and sometimes it is better not to add it. Properly increasing the amount of mineral admixture will increase the strength of concrete by 5% ku 10%, and the strong increase in the later period is also satisfactory. Ichabatsira kuderedza hydration kupisa, kudzivirira mitswe, uye kuvandudza kusimba.
(4) Naphthalene-based admixtures inorambidzwa zvachose
Makambani anoshandisa ese ari maviri naphthalene-based superplasticizers uye polycarboxylic acid-based superplasticizers., kana mamiriro ezvinhu achibvumira, anoshandiswa zvakanakisa muzviteshi zvakasiyana. Kana iyo imwechete unit ine zvese polycarboxylic acid uye naphthalene-based, kana ichishandiswa zvakasiyana, The admixture weighting container, pipeline uye mixer zvakanyatsocheneswa, uye tangi rekongiri rinofanirawo kucheneswa nekuzadzwazve. Izvo zvinorambidzwa zvachose kusanganisa naphthalene-based superplasticizer uye polycarboxylic acid superplasticizer., kunyanya panzvimbo yekuvaka, apo nzira ye “kuwedzera zvakasanganiswa” inodiwa kugadzirisa kushanda kwekongiri musanganiswa, kongiri mukati memotokari inofanira kujekeswa. Mhando dzemisanganiswa dzinoshandiswa dzinogona kudzivirira “rapid setting” of concrete caused by a mixing, which will cause the vehicle concrete to be scrapped.
(5) Strengthen inspection
When the polycarboxylic acid water reducing agent is received, first check the various technical indicators of the water reducing agent to ensure the stability of quality. Chechipiri, the raw materials used should be selected, and the production mix ratio should be used for testing. If problems are found, the technical staff of the admixture production enterprise should be adjusted in time.
(6) Timely communication with the construction unit
Before concrete production, the construction party should be informed of the technical requirements of the concrete.
The transportation distance, the construction process, and the temperature of the day, and if necessary, enda kunzvimbo yebasa kuti uongororwe saiti kuti unzwisise nzira yekupomba kongiri, kana nzira yepombi ine musoro, uye kugoverwa kwembariro dzesimbi.
Hunhu hwevashandi nechikwata chekuvaka chechikamu chekuvaka huchagoverwa zvine musoro, uye motokari dzichatumirwa maererano nemamiriro chaiwo.
(7) Kujairana nehunhu hwepolycarboxylic acid plasticizer uye superplasticizer inoshandiswa
Kuburikidza nemiedzo, iyo shanduko yemitemo yepolycarboxylic acid inoderedza mvura mumiririri muyedzo yekongiri kugadzirwa-kugadzira-kuvaka inopfupikiswa., iyo yakanakira kubata nenjodzi. Ongorora iyi mitemo mukuyedza uye kugadzira maitiro, kuunganidza ruzivo, uye nekukasira kurudzira mhinduro dzine musoro kana paine kungoerekana kwachinja mune yakasimba-nyika, kudzivisa kukonzera kurasikirwa kwakanyanya, uye kubudirira “nenguva, zvesainzi, uye zvine musoro.”
Polycarboxylic acid yekudzikisa mvura ichashandiswa mune ese ari furo simende uye yakajairwa simende kongiri. Kana iyo superplasticizer yakashandiswa nemazvo, ichaita basa mukusimudzira plastiki mu simenti. Iva nechokwadi chekudzora nzira uye huwandu hwepolycarboxylate superplasticizer zvakasimba.Saka kuti mhedzisiro yezvishoma uye yakakosha kukanganisa.
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