Tsiku Lolemba: 26, Dise, 2022
1. Kuchepetsa madzi masirikali
Kuchepetsa Madzi ndi zinthu zina zomwe zimawonjezera konkriti zitha kupanga chingwe chowoneka bwino pagawo lam'madzi ndilo kuposa zomwe zimapangidwira. Kuchepetsa madzi m'madzi kumagwiritsidwa ntchito kupeza mphamvu yapandunji yogwiritsa ntchito simenti. Zamtundu wapansi pa simenti zimapangitsa kuti mpweya uchepe ndi kutsika kwa ma cyrete wopangidwa. Ndi mtundu uwu wa mtundu, ma cellrete asintha ndikuthandizira kuyika konkire pansi pamavuto. Madzi amadzi agwiritsidwa ntchito makamaka mu Brid Cuncs, zowonjezera zotsika kwambiri, ndi kuluka konkriti. Kupita patsogolo kwaposachedwa kwaukadaulo wazosankha zadzetsa chitukuko cha madzi osiyanasiyana.
2. Admenti
Cholinga chachikulu chogwiritsa ntchito superplasticizer ndikupanga konkriti wotsika ndi mainchesi angapo mpaka 9 mpaka 900 mpaka 9 mpaka 9 kuti agwiritsidwe ntchito molimbika komanso m'malo ophatikizika chifukwa kugwedezeka sikutheka. Ntchito ina yayikulu ndikupanga konkriti wamphamvu kwambiri pa w / c kuyambira 0,3 mpaka 0.4. Zapezeka kuti kwa mitundu yambiri ya simenti, superplastiir imasintha kugwirira ntchito konkriti. Vuto limodzi lolumikizidwa ndi kugwiritsa ntchito kuchepa kwa madzi okwera kwambiri mu konkriti. Konkriti yogwira ntchito yogwira ntchito kwambiri yokhala ndi superplastic matenda ikhoza kupangidwa ndi kukana kwakukulu kwa thaw, koma mpweya uyenera kuwonjezeka ndi konkriti popanda superplasticizer.
3..
Khazikitsani Kubwezeretsa Adrerete ma Adrettex kumagwiritsidwa ntchito kuzengereza kuchepetsedwa kwa mankhwala omwe amachitika pomwe konkriti imayamba makonzedwe. Mitundu iyi ya Adretectives nthawi zambiri imagwiritsidwa ntchito kuchepetsa kutentha kwa matenthedwe kwambiri. Khazikitsani ma addicturetures omwe amagwiritsidwa ntchito pomanga poyenda pansi, pezani nthawi yochulukirapo yotsiriza ma portrete, akuchepetsa mtengo wowonjezera kuyika chomera cha batrite pazenera ndipo amathandizira kuchepetsa zowongoka mu konkriti. Ogulitsa amathanso kugwiritsidwa ntchito popewa kuwonongeka chifukwa choloweretsa pomwe ma slabs opingasa amayikidwa m'magawo. Ogulitsa ambiri amagwiranso ntchito ngati madzi ochepetsa madzi ndipo amatha kuyika mpweya ku konkriti
4..
Konkriti yovala mpweya imatha kuwonjezera kuzizira kwa konkriti. Mtundu wazophatikizira uwu umatulutsa konkriti wovuta kwambiri kuposa konkriti wosakhazikika pomwe ukuchepetsa magazi ndi tsankho la konkriti. Kulimbana ndi konkriti konkriti ku chisanu kuchitapo kanthu kapena kuzizira. Maubwino ena kuchokera kuntchitoyi ndi:
a. Kukana Kwambiri Kuzimbira Zonyowa ndi Kuyanika
b. Kuchuluka kwa ntchito
c. Kuchuluka kwa kulimba
Ma buluzi oyimbidwa ndi mpweya amakhala ngati wolumala motsutsana ndi kung'ambika komwe kumachitika chifukwa cha zovuta zomwe zimachitika chifukwa cha kuchuluka kwa madzi okwanira kutentha. Kusangalatsa Kusangalatsa Kuchita bwino kumagwirizana ndi akatswiri onse a konkriti. Nthawi zambiri pa aliyense wa mpweya wambiri, mphamvu yopondereza idzachepetsedwa ndi kasanu.
5.
ShraDzage-Kuchepetsa ma andireti a konkriti amawonjezeredwa konkriti pakusakanikirana koyamba. Mtundu wophatikizika uwu umatha kuchepetsa msanga komanso kutalika kouma. Kuchepetsa ma addictures kungagwiritsidwe ntchito pamavuto omwe kugwedeza kochepa kumatha kubweretsa mavuto kapena komwe kulumikizana kwakukulu kwa ma shrihrage ndikosafunikira pazifukwa zachuma kapena zaluso. Kuchepetsa ma Adminixtat, nthawi zina, kuchepetsa chitukuko chambiri koyambirira komanso zaka zam'tsogolo.
6..concrete Admixures: Shrankage Kuchepetsa
ShraDzage-kuchepetsa ma andireti a konkriti amawonjezeredwa konkriti pakusakanikirana koyambirira. Mtundu wophatikizika uwu umatha kuchepetsa msanga komanso kutalika kouma. Kuchepetsa ma addictures kungagwiritsidwe ntchito pamavuto omwe kugwedeza kochepa kumatha kubweretsa mavuto kapena komwe kulumikizana kwakukulu kwa ma shrihrage ndikosafunikira pazifukwa zachuma kapena zaluso. Kuchepetsa ma Adminixtat, nthawi zina, kuchepetsa chitukuko chambiri koyambirira komanso zaka zam'tsogolo.
7.. Konkriti
Kugwiritsa ntchito ma adrostion-oletsa kugwera mu gawo lapadera ndipo amagwiritsidwa ntchito pang'onopang'ono polimbikitsa chitsulo ku konkriti. Zolepheretsa zotupa zimatha kuchepetsa mtengo wokhazikika wa konkriti wolimbikitsidwa pa moyo wa zaka 30 - 40. Ma Assictures ena apadera amaphatikiza - kuchepetsa ma adduxtures ndi alkali-silika amabwezeretsanso. Kugwiritsa ntchito kuwononga kosafunikira sikuthandiza kwambiri pazaka pambuyo pake koma kumathandizira kukulitsa mphamvu yoyambirira. Calcium nitrite wochokera ku Truasion inhibitors imathandizira nthawi yokhazikika ya ma conretes pamtundu uliwonse wokutira pokhapokha atapangidwa ndi wolipiritsa kuti athetse ntchito.
Post Nthawi: Dis-27-2022
