Madzi ochepetsera

Mankhwala ochepetsera madzi, omwe amadziwikanso kuti plasticizer, ndi mtundu wa zowonjezera za mankhwala zomwe zimagwiritsidwa ntchito mu konkire ndi zipangizo zina za simenti kuti zichepetse kuchuluka kwa madzi ofunikira kuti akwaniritse ntchito yofunidwa ndi mphamvu.Kugwiritsa ntchito zinthu zochepetsera madzi kumatha kukonza konkriti, kukulitsa kulimba kwake, ndikuchepetsa mtengo wonse womanga.

Othandizira kuchepetsa madzi amagwira ntchito mwa kumwaza ndi / kapena kusokoneza tinthu tating'ono ta simenti mu osakaniza a konkire, zomwe zimachepetsa kukangana kwa interparticle ndikuwonjezera madzi osakaniza.Izi zimapangitsa kuti chisakanizocho chikhale chosavuta kugwira ntchito ndikuchepetsa kuchuluka kwa madzi ofunikira kuti mukwaniritse kutsika komwe mukufuna kapena kugwira ntchito.Pochepetsa kuchuluka kwa simenti yamadzi, mphamvu ndi kukhazikika kwa konkire zimatheka.

Pali mitundu iwiri ikuluikulu yochepetsera madzi: lignosulfonates ndi ma polima opangira.Ma Lignosulfonates amachokera ku zamkati zamatabwa ndipo amagwiritsidwa ntchito kwambiri pa konkriti yamphamvu yotsika mpaka yocheperako.Iwo ndi otsika mtengo ndipo akhala akugwiritsidwa ntchito kwa zaka zambiri.Komano, ma polima opangidwa ndi mankhwala amapangidwa kuchokera ku mankhwala ndipo amatha kuchepetsa kufunikira kwa madzi ndikuwongolera magwiridwe antchito, kuwapangitsa kukhala oyenera kugwiritsidwa ntchito mu konkriti yogwira ntchito kwambiri.

Othandizira kuchepetsa madzi angagwiritsidwe ntchito m'njira zosiyanasiyana, kuphatikizapo konkire ya precast, konkire yosakanikirana, shotcrete, ndi konkriti yodziphatikiza yokha.Zitha kugwiritsidwanso ntchito kupititsa patsogolo ntchito ya konkire nyengo yotentha, kuchepetsa ngozi yosweka, komanso kuchepetsa mtengo wonse womanga.

Mwachidule, zochepetsera madzi ndi zowonjezera mankhwala zomwe zimachepetsa kuchuluka kwa madzi ofunikira kuti akwaniritse ntchito yomwe akufuna komanso mphamvu ya konkriti ndi zida zina za simenti.Amagwira ntchito pobalalitsa ndi / kapena kusokoneza tinthu tating'ono ta simenti, kuchepetsa kukangana kwapakati ndikuwonjezera madzi osakaniza.Kugwiritsa ntchito zinthu zochepetsera madzi kumatha kupangitsa kuti konkire ikhale yabwino komanso yolimba, kuchepetsa ngozi yosweka, ndikuchepetsa mtengo wonse womanga.