chochepetsera madzi cha polycarboxylate mu konkriti yamphamvu kwambiri

Ndi chitukuko cha makampani omanga kuti agwire bwino ntchito, akhale olimba komanso oteteza chilengedwe, zofunikira pakugwira ntchito kwa zipangizo za konkire zikukwera nthawi zonse. Konkire yamphamvu imagwiritsidwa ntchito kwambiri m'nyumba zazitali, milatho, zomangamanga zazikulu ndi mapulojekiti ena auinjiniya chifukwa cha mphamvu zake zabwino kwambiri zamakanika komanso kulimba kwake. Monga kusakaniza konkire yamphamvu ya m'badwo wachitatu,chochepetsera madzi cha polycarboxylateyakhala chinthu chofunikira kwambiri pakukonzekera konkireti yamphamvu kwambiri chifukwa imatha kusungunuka bwino komanso kukana kugwa.

1. Makhalidwe a ntchito ya polycarboxylate water reducer

Chochepetsa madzi cha Polycarboxylate ndi mtundu watsopano wa chochepetsera madzi chapamwamba chomwe chimapangidwa poyambitsa magulu angapo ogwira ntchito ndi polyether ndi acrylic acid ngati unyolo waukulu. Kapangidwe kake ka molekyulu kamapangidwa ndi magulu akuluakulu okhudzidwa ndi unyolo ndi magulu oletsa steric, omwe ali ndi kapangidwe kapamwamba komanso magwiridwe antchito. Poyerekeza ndi zochepetsera madzi zachikhalidwe za naphthalene kapena aliphatic, zochepetsera madzi za polycarboxylate zili ndi zabwino zotsatirazi:

Kuchuluka kwa madzi: Chochepetsa madzi cha Polycarboxylate chimatha kuchepetsa madzi ndi kupitirira 20% pa mlingo wochepa, zomwe zimathandiza kuchepetsa chiŵerengero cha madzi ndi simenti cha konkire, motero kukulitsa mphamvu yake.

Kufalikira bwino komanso kusungidwa bwino: Kapangidwe kake ka molekyulu kangathe kupanga gawo lokhazikika la madzi pamwamba pa tinthu ta simenti, kuchepetsa kukopana pakati pa tinthu ta simenti, ndikusunga madzi abwino.

Kutayika kochepa kwa nthaka: Mwa kusintha kutalika kwa unyolo wam'mbali ndi kuchulukana kwa kapangidwe ka mamolekyu, magwiridwe antchito a konkriti osungira nthaka amatha kukonzedwa bwino kuti akwaniritse zosowa za zomangamanga kwa nthawi yayitali.

Kugwirizana bwino: Chochepetsera madzi cha Polycarboxylate chimatha kusinthasintha bwino ndi mitundu yosiyanasiyana ya simenti ndi mchere (monga phulusa la ntchentche, ufa wa slag, fume ya silica), zomwe zimathandiza kuti konkriti yopangidwa bwino ikhale yogwirizana.

Yobiriwira komanso yosamalira chilengedwe: Njira yake yopangira zinthu ndi yosamalira chilengedwe, yokhala ndi zinthu zochepa zowonjezera, ndipo imakwaniritsa zofunikira pa chitukuko chokhazikika.

2. Zofunikira zazikulu pa konkriti yolimba kwambiri

Konkireti yolimba kwambiri nthawi zambiri imatanthauza konkireti yokhala ndi mphamvu yopondereza ya kiyubiki ya C60 ndi kupitirira apo. Kuti mupeze mphamvu zambiri, chiŵerengero cha madzi ndi simenti chiyenera kuchepetsedwa pamene chikutsimikizira kuti ntchito yomanga ikuyenda bwino (monga kupopa madzi, kusinthasintha kwa madzi) komanso kulimba. Pachifukwa ichi, ndikofunikira kugwiritsa ntchito zochepetsera madzi zogwira ntchito bwino kuti ziwongolere magwiridwe antchito a konkireti, ndipo zochepetsera madzi za polycarboxylate ndiye chisankho chabwino kwambiri chokwaniritsa cholinga ichi.

3. Ubwino wa polycarboxylate water reducer mu konkriti yamphamvu kwambiri

Sinthani mphamvu yoyambirira ndi yomaliza: chochepetsera madzi cha polycarboxylate chimachepetsa kwambiri chiŵerengero cha madzi ndi simenti pamene chikusunga madzi okwanira, kotero kuti simentiyo ikhale ndi madzi okwanira, imawongolera kwambiri mphamvu yoyambirira ndi yomaliza ya simenti, ndikukwaniritsa zofunikira pa kapangidwe ka nyumba zolimba kwambiri.

Kukweza kuchuluka kwa kapangidwe ka konkriti: kuchepetsa chiŵerengero cha madzi ndi simenti popanda kusokoneza kugwira ntchito, kumathandiza kuchepetsa mitsempha yamagazi, kukonza kuchuluka ndi kusalowa kwa konkriti, ndikuwonjezera kulimba kwake.

Konzani magwiridwe antchito a zomangamanga: Mu konkriti yolimba kwambiri, chisakanizocho nthawi zambiri chimakhala chokhuthala chifukwa cha kuchuluka kwa simenti. Kusungunuka bwino kwa polycarboxylate water reducer kungathandize kwambiri kusinthasintha kwa konkriti, kuchepetsa mgwirizano, komanso kukonza bwino ntchito yopompa.

Zotsatira za kuphatikiza ndi zinthu zosakaniza za mchere n'zofunika kwambiri: chochepetsera madzi cha polycarboxylate chimakhala ndi mphamvu yabwino yogwirizana ndi zinthu zosakaniza monga phulusa la ntchentche, ufa wa slag, ndi fume ya silica, zomwe zimathandiza kukonza bwino zinthu zonse za konkire, monga mphamvu, kulimba, kuchepa, ndi zina zotero.

Chepetsani mtengo wonse: Ngakhale mtengo wa unit wa polycarboxylate water reducer ndi wokwera, kugwira ntchito kwake bwino kungachepetse kugwiritsa ntchito simenti, kuchepetsa kugwiritsa ntchito mphamvu, kukweza ubwino wa polojekiti, ndikupeza phindu lalikulu pazachuma.

4. Kusanthula nkhani yogwiritsira ntchito

Mu ntchito yomanga nyumba yayitali kwambiri, mphamvu ya konkriti imafunika kukhala C80, ndipo imagwira ntchito bwino komanso kulimba. Gulu la polojekitiyi linagwiritsa ntchito polycarboxylate high-performance water reducer, kuphatikiza ndi silica fume ndi slag powder composite admixtures, ndipo linapanga bwino konkriti yamphamvu kwambiri yomwe inakwaniritsa zofunikira pakupanga mwa kukonza chiŵerengero cha madzi ndi simenti ndi kukula kwa tinthu. Zotsatira za mayeso zikusonyeza kuti mphamvu ya konkriti ya masiku 28 imapitirira 85 MPa, ndipo nthawi yosungira madzi m'nthaka ndi yoposa maola awiri, zomwe zimakwaniritsa zosowa za kumanga ndi kupompa pamalopo, komanso zimasonyezanso mphamvu zabwino zoletsa kuzizira, zoletsa kutuluka kwa madzi komanso zoletsa mpweya.

5. Mavuto omwe alipo ndi njira zopititsira patsogolo chitukuko

Ngakhale kuti chochepetsera madzi cha polycarboxylate chimagwiritsidwa ntchito kwambiri pa simenti yamphamvu kwambiri, palinso mavuto otsatirawa m'mapulojekiti enieni:

Mavuto okhudzana ndi simenti zina: Mitundu ina ya simenti ingayambitse kulephera kwa chochepetsera madzi kapena kuchepa kwa magwiridwe antchito osungira madzi, ndipo kafukufuku wokhudzana ndi kusintha kwa madzi amafunika.

Kuzindikira kwambiri malo omangira: Chochepetsera madzi cha Polycarboxylate chimazindikira kwambiri malo omangira monga kutentha ndi chinyezi, ndipo momwe amagwiritsidwira ntchito ziyenera kuyendetsedwa moyenera.

Njira yopangira zinthu ndi yovuta ndipo mtengo wake ndi wokwera: Pakadali pano, mapulojekiti aukadaulo ogwira ntchito bwino kwambiri akadali madera ofunikira kwambiri, ndipo ndikofunikira kuchepetsa ndalama kudzera mu kukonza njira kuti anthu ambiri azitha kutchuka.

Kupanga kwa polycarboxylate water reducer kudzayang'ana kwambiri mbali izi: Choyamba, kukonza bwino kapangidwe ka mamolekyu kuti pakhale kusintha kwa mgwirizano pakati pa kuchepetsa madzi ndi kusungidwa kwa madzi; chachiwiri, kupanga kwanzeru kwa madzi ochepetsera kutentha, monga mtundu wozindikira kutentha, mtundu wotulutsa pang'onopang'ono, ndi zina zotero; chachitatu, kafukufuku pa njira yopangira zinthu zobiriwira komanso zachilengedwe kuti zipititse patsogolo chitukuko chokhazikika; chachinayi, kapangidwe kanzeru ka konkriti kuphatikiza ndi AI kapena big data.

Chochepetsa madzi cha polycarboxylatechakhala chinthu chachikulu chokonzera konkriti yamphamvu kwambiri chifukwa cha magwiridwe ake abwino kwambiri. Kudzera mu kapangidwe ndi kugwiritsa ntchito mwanzeru kwasayansi, sichingokwaniritsa zofunikira zingapo za konkriti yamphamvu kwambiri kuti igwire bwino ntchito, komanso chimakweza ubwino wa uinjiniya komanso magwiridwe antchito. Pankhani yopititsa patsogolo ukadaulo womanga mtsogolo, chochepetsera madzi cha polycarboxylate chidzagwiritsa ntchito mphamvu zake zazikulu m'munda waukulu.