Kodi ntchito ya mpweya etraining matope?

Chiyambi:

Tondo ndi chisakanizo cha simenti, mchenga, ndi madzi amene amagwiritsidwa ntchito pomanga pomanga njerwa kapena midadada. Ndi gawo lofunika kwambiri pomanga miyala ndipo amagwiritsidwa ntchito m'njira zosiyanasiyana, kuphatikiza kuyika njerwa, kutsekereza, kupanga miyala, ndi pulasitala. Air etraining agents (AEA) ndi mtundu wa zowonjezera mankhwala zomwe zingagwiritsidwe ntchito mumatope kuti ziwongolere katundu wake. M'nkhaniyi, tikambirana za ntchito ya opangira mpweya mumatope komanso momwe angathandizire kuti matope ayambe kugwira ntchito.

Kodi Air-Entraining Agent (AEA) ndi chiyani?

Air-entraining agents (AEA) ndi zowonjezera za mankhwala zomwe zimawonjezedwa mumatope kuti apange tinthu tating'onoting'ono ta mpweya togawanitsa mkati mwa kusakaniza. Mpweya uwu ukhoza kupititsa patsogolo kugwira ntchito, kukana kuzizira, komanso kulimba kwa matope. Zopangira mpweya nthawi zambiri zimakhala ndi zinthu zomwe zimakhala ndi zowonjezera kapena mankhwala ena omwe amatha kupanga matumba a mpweya mkati mwa kusakaniza. Kuchuluka kwa mpweya wophatikizidwa mu kusakaniza kungawongoleredwe mwa kusintha kuchuluka kwa mpweya wopangira mpweya womwe umawonjezeredwa kumatope.

Mitundu ya Ma Agent A Air Entraining:

Pali mitundu ingapo ya ma air-entraining agents omwe amagwiritsidwa ntchito mumatope. Mitundu yodziwika kwambiri ndi:

1. Synthetic Surfactants: Awa ndi mankhwala opangidwa omwe amapangidwa kuti apange tinthu tating'onoting'ono ta mpweya tomwe timagawanitsa mkati mwa kusakaniza. Nthawi zambiri amawonjezeredwa kusakaniza mu mawonekedwe amadzimadzi ndipo amatha kugwiritsidwa ntchito mumatope a simenti komanso opanda simenti.
2. Natural Surfactants: Izi ndi zinthu zachilengedwe, monga zopangira mbewu kapena mafuta anyama, zomwe zimakhala ndi zowonjezera. Atha kugwiritsidwa ntchito mumatope a simenti komanso opanda simenti.
3. Hydrophobic Agents: Awa ndi mankhwala omwe amathamangitsa madzi ndipo angagwiritsidwe ntchito kupanga matumba a mpweya mkati mwa kusakaniza. Amawonjezeredwa kusakaniza mu mawonekedwe a ufa ndipo amatha kugwiritsidwa ntchito mumatope a simenti komanso opanda simenti.
4. Zosakaniza za Air-Entraining: Izi ndi zosakanikirana za mankhwala omwe amapangidwa makamaka kuti apange tinthu tating'onoting'ono ta mpweya tomwe timagawanitsa mkati mwa kusakaniza. Nthawi zambiri amawonjezeredwa kusakaniza mu mawonekedwe amadzimadzi ndipo amatha kugwiritsidwa ntchito mumatope a simenti komanso opanda simenti.

Udindo wa Othandizira Othandizira M'mlengalenga mu Mortar:

1. Kugwira ntchito:

Kuphatikizika kwa zinthu zopangira mpweya mumatope kumatha kupititsa patsogolo ntchito yake. Tizilombo tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'ono tating'onoting'ono tating'ono tating'onoting'ono timachepetsa kugwedezeka kwa mpweya ndikupangitsa kuti zikhale zosavuta kufalitsa ndikuwongolera. Izi zitha kukhala zothandiza makamaka pogwira ntchito ndi matope m'malo ozizira kapena amvula, chifukwa ming'oma ya mpweya ingathandize kuti kusakaniza kusakhale kolimba kwambiri kapena kovuta kugwira ntchito.

2. Kukana kwa Freeze-Thaw:

Ubwino umodzi wogwiritsa ntchito zopangira mpweya mumatope ndikuti zimatha kuwongolera kukana kwake kuzizira. Madzi akaundana, amakula, zomwe zingawononge matope. Komabe, tinthu ting’onoting’ono ta mpweya togawanika mofanana tomwe timapangidwa ndi ma air-entraining agents, titha kupereka malo kuti madziwo achuluke, kuchepetsa kuwonongeka komwe kumachitika. Izi zitha kukhala zothandiza makamaka m'madera omwe nyengo yozizira imakhala yotentha, komwe kuzizira kumakhala kofala.

3. Kukhalitsa:

Ma air-entraining angathandizenso kuti matope azikhala olimba. Timatumba tating'onoting'ono ta mpweya mkati mwa kusakaniza kumatha kukhala ngati chotchinga pakati pa tinthu tating'ono tomwe timasakanikirana, kuchepetsa kupsinjika komwe kumayikidwa. Izi zingathandize kupewa kusweka ndi kuwonongeka kwa mitundu ina pakapita nthawi, makamaka pamene matope amakumana ndi kupsinjika kwakukulu kapena kugwedezeka.

4. Kusunga Madzi:

Ma air-entraining agents angathandizenso kuti madzi asungidwe mumatope. Timatumba tating'ono ta mpweya mkati mwa kusakaniza kungathandize kuti madzi asatuluke mofulumira kuchokera pamwamba pa matope, omwe angakhale othandiza makamaka pakatentha kapena kouma. Izi zingathandize kuonetsetsa kuti matope amakhalabe ogwira ntchito kwa nthawi yaitali, kuchepetsa kufunika kokonzanso kapena kubwereza.

5. Mphamvu ya Bond:

Ubwino wina wogwiritsa ntchito zopangira mpweya mumatope ndikuti zimatha kulimbitsa mgwirizano pakati pa matope ndi mayunitsi amiyala. Timatumba tating'onoting'ono ta mpweya mkati mwa kusakaniza kungathandize kupanga porous pamwamba, kulola matope kuti azitsatira bwino pamwamba pa masonry unit. Izi zingathandize kupanga mgwirizano wamphamvu, wokhazikika womwe sungathe kusweka kapena kulephera pakapita nthawi.

6. Kuchepetsa Kuchepa:

Mankhwala opangira mpweya angathandizenso kuchepetsa kuchepa kwa matope pamene akuchira. Tondo likauma, limatha kuchepa pang'ono, zomwe zingayambitse kusweka kapena kuwonongeka kwina. Komabe, matumba ang'onoang'ono a mpweya opangidwa ndi othandizira mpweya amatha kuthandizira kuchepetsa kuchepa kumeneku, kuchepetsa chiopsezo cha kuwonongeka ndikuwonetsetsa kuti matope amakhalabe amphamvu komanso okhazikika pakapita nthawi.

Pomaliza:

Mwachidule, othandizira opangira mpweya amagwira ntchito yofunika kwambiri pakuchita matope. Amatha kupititsa patsogolo kugwirira ntchito, kukana kuzizira, kukhazikika, kusunga madzi, mphamvu zomangira, ndi kuchepetsa kuchepa kwa matope, ndikupangitsa kuti ikhale yodalirika komanso yothandiza kuti igwiritsidwe ntchito pomanga. Pali mitundu ingapo ya ma air-entraining agents omwe alipo, iliyonse ili ndi katundu wake komanso ubwino wake. Pomvetsetsa ntchito ya othandizira opangira mpweya mumatope, akatswiri omanga amatha kusankha mtundu woyenera ndi kuchuluka kwa wothandizira kuti akwaniritse zomwe akufuna ndikuwonetsetsa kuti ntchito zawo zimamangidwa kuti zipitirire.