Chidule cha Wothandizira Foam Concrete

Zambiri za wotulutsa thovu andi zosiyana zake.

Wotulutsa thovu ndi zinthu zomwe zimalimbikitsa kupanga chithovu, lomwe makamaka lagawidwa mitundu iwiri: choponyera pamwamba ndi chotulutsa thobvu. Pamene Surfactant ikupereka pang'ono, imatha kuchepetsa kuthamanga kwamadzi (kuchepetsa ntchito yofunika kupanga thovu) kapena kuonjezera kukhazikika kwa colloidal mwa kuletsa kuphatikizika kwa thovu. Pamene mpweya wotulutsa thovu ndi mpweya womwe umapanga gawo la mpweya wa thovu.

Konkriti ya thovu ndi mtundu wapadera kuwala porous konkire. Kuti mukhale ndi mabowo a mpweya, muyenera njira yotsekera mpweya mu konkire usanayambe kumira. Osati misampha yayikulu kwambiri ndi thovu, kapena tinganene kuchita thovu apa. Kupanga thovu mwachangu komanso mokhazikika, timafunikira chopangira thovu kapena mankhwala omwe amapanga thovuzi musanazithire mu konkriti wamba.

Foamed konkriti yotulutsa thovu ndi mtundu wazinthu zomwe zimatha kupanga njira yake yamadzimadzi kutulutsa thovu lalikulu pomwe mphamvu yamakina imalowetsedwa mumlengalenga.. Chinthu chamtundu uwu ndi

pamwamba yogwira wothandizira(surfactant) kapena pamwamba yogwira ntchito. Zoyamba zikuphatikizapo anionic surfactant, cationic surfactant, si-ionic surfactant; yotsirizirayi imaphatikizapo mapuloteni a nyama, zomanga thupi, Zamkati izi ndi zamadzimadzi. Foamed konkriti thovu wothandizira amadziwikanso kuti simenti thovu wothandizira. Konkire thovu wothandizira amatanthauza mtundu wa zinthu zomwe zimatha kuchepetsa kuthamanga kwamadzimadzi ndikutulutsa thovu lalikulu komanso lokhazikika., zomwe zimagwiritsidwa ntchito popanga chowonjezera cha konkriti cha thovu.

Kafukufuku watsopano wokhudza thovu la konkriti.

Poyerekeza katundu wa thovu la mitundu yosiyanasiyana ya anionic surfactants ndi zipangizo zosavuta komanso mtengo wotsika, sodium alpha-olefin sulfonate (KWA) ndi kukhazikika bwino kwa thovu kumakondedwa ngati gawo la thovu. Chopangira thovu chatsopano cha konkriti yokhala ndi thovu chimakonzedwa ndikuwonjezera kuchuluka koyenera kwa silicone foam stabilizer (zt-1) ndi thickening zinthu carboxymethyl cellulose (CMC).

(1) Poyerekeza anayi osiyana surfactants anionic ndi chimodzimodzi njira ndende, asayansi apeza kuti kutulutsa thovu kwa AOS ndikwamphamvu kwambiri, kenako K12, AES ndi LAS. Pankhani ya kukhazikika kwa thovu, AOS ilinso yapamwamba kuposa ntchito zina zitatu za anionic padziko lapansi komanso kuchuluka kwa yankho la AOS 0.80%.

(2) Pamene 0,80% AOS thovu wothandizira mayi mowa wosakaniza ndi 0.20% organic silikoni thovu-stabilizing wothandizira zt-1, thovu linafika pokhazikika bwino ndipo mtunda wokhazikika wa 1-h ndi 4.8mm ndipo zokolola za 1-h ndi 38.4 ml.

(3) Pamaziko osintha AOS ndi organic silicon thovu-stabilizing wothandizira zt-1, thovu limasinthidwanso ndi zinthu zokhuthala za carboxymethyl cellulose CMC. Zimapezeka kuti pamene mlingo uli 0.020%, ntchito ya thovu imafika pamlingo woyenera, thovu zambiri kukhala 37.5 nthawi, mtunda wokhazikika wa 1-h kukhala 1.8 mm, ndi 1-h katulutsidwe madzi kukhala 26.1 ml.

(4) Watsopano thovu wothandizila ntchito yokonza 300 ~ 500 kalasi otsika kachulukidwe thovu konkire., ndipo zinthuzo zinasonyeza zinthu zabwino zamakina ndi kutentha. The 28d compressive mphamvu ya kalasi 300 konkriti yokhala ndi thovu imafika pa 0.82mpa, ndiye matenthedwe matenthedwe ndi 0.062w/(m·K). The 28d compressive mphamvu ya kalasi 400 konkire ya thovu imafika 1.3mpa, ndiyeno matenthedwe matenthedwe ndi 0.075w/(m·K). The 28d compressive mphamvu ya kalasi 500 konkire ya thovu imafika 1.9mpa, ndiyeno matenthedwe matenthedwe ndi 0.087w/(m·K).

Zonsezi zikunenedwa, zotsatira zake zidawonetsa kuti chithovu chokonzedwa ndi chopangira thovu chatsopano cha konkriti ndichabwino, chonyezimira ndi chokhazikika. Ndi kuchuluka kwa thovu la 37.5 nthawi, mtunda wokhazikika wa 1.8 mm ndi 1 h, kusamuka kwa 26.1 ml pa 1 h, kutalika kwa thovu kumakhalabe kuposa 50% ku 48 h. The thovu wothandizila ntchito kukonzekera otsika kachulukidwe thobvu konkire.

Cie-China.org ndiye wotsogola wotsogola wa konkriti wa thovu yemwe amapereka thovu la konkriti, superplasticizer,thovu konkire mphamvu zowonjezera kwa wopepuka konkire, Zolemba za CLC. Ngati mukuyang'ana chotsitsa thovu, chonde khalani omasuka Lumikizanani nafe.