Ma cellulose ethers ndi gulu la organic polima mankhwala omwe amagwiritsidwa ntchito kwambiri pomanga, makamaka mu konkriti ndi matope. Monga chowonjezera, cellulose ether imakhudza kwambiri zinthu zambiri za konkire, kuphatikizapo kugwirira ntchito, kusunga madzi, mphamvu, kugwirizanitsa katundu, etc.
1. Kukhudza kugwira ntchito
Ma cellulose ethers amatha kusintha kwambiri magwiridwe antchito a konkriti, makamaka pakusakaniza ndi kumanga. Ma cellulose ether ali ndi zotsatira zabwino zokometsera ndipo amatha kuwonjezera kukhuthala ndi rheology ya konkire, kuti ikhale yosavuta kugwira ntchito ndi mawonekedwe. Ntchitoyi ndiyofunikira kwambiri munjira zomangira zomwe zimafuna kuchuluka kwamadzimadzi, monga konkriti yopopera ndi shotcrete.
Cellulose ether akhoza kusintha lubricity wa konkire ndi kuchepetsa mikangano pakati particles pa ndondomeko kusanganikirana, potero kuwongolera kufanana ndi operability wa konkire. Izi zimathandiza konkriti kuti ikwaniritse mawonekedwe abwino komanso kumaliza pamwamba pakumanga.
2. Mphamvu pa kusunga madzi
Ma cellulose ether ali ndi mphamvu yosungira madzi mwamphamvu ndipo mawonekedwe ake a maselo ali ndi magulu ambiri a hydrophilic, omwe amatha kuyamwa bwino ndikusunga chinyezi. Makhalidwewa amalola ma cellulose ethers kuti apititse patsogolo kwambiri kusungirako madzi mu konkire, makamaka m'malo owuma kapena zomangamanga zosanjikiza. Ma cellulose ethers amatha kuchepetsa kutuluka kwamadzi mwachangu ndikupewa ming'alu ndi kuchepetsa mphamvu zomwe zimachitika chifukwa cha kutaya madzi koyambirira mu konkire. .
Mwa kuwonjezera madzi posungira konkire, mapadi ether angathenso kutalikitsa simenti hydration anachita nthawi, kulola particles simenti kuti mokwanira hydrated, motero kuwongolera mphamvu ndi durability konkire. Makamaka pansi pamikhalidwe yowuma yomanga, monga kumanga chilimwe kapena malo otentha kwambiri, kusungirako madzi kwa cellulose ether kumagwira ntchito yofunika kwambiri pomaliza konkire.
3. Mphamvu pa mphamvu
Ma cellulose ether ali ndi chikoka pakukula kwamphamvu konkriti, makamaka pamphamvu yoyambirira. Popeza mapadi etere bwino madzi posungira konkire, ndi hydration anachita wa particles simenti ndi wathunthu, ndi kuchuluka kwa mankhwala oyambirira hydration ukuwonjezeka, potero kuwongolera oyambirira mphamvu konkire. Panthawi imodzimodziyo, ether ya cellulose imathanso kusintha mphamvu ya pambuyo pake ya konkire mwa kusintha kufanana kwa mkati mwake.
Tiyenera kuzindikira kuti mlingo wa cellulose ether uyenera kukhala woyenera. Ngati mlingowo ndi waukulu kwambiri, ngakhale kuti kusungirako madzi ndi rheology kumalimbikitsidwa, zingakhudze mphamvu yomaliza ya konkire, makamaka mphamvu yapambuyo pake. Izi ndichifukwa choti owonjezera mapadi ether angalepheretse kuyenderera kwina kwa tinthu ta simenti ndikuchepetsa mphamvu zawo zamtsogolo.
4. Zotsatira za kuchepa ndi kusweka kwa konkire
Ma cellulose ether amatha kuchepetsa kupindika koyambirira kowuma ndikuchepetsa ming'alu ya konkire mwa kukonza kasungidwe ka madzi konkire. Ming'alu ya shrinkage nthawi zambiri imayamba chifukwa cha kupsinjika kwa konkriti komwe kumachitika chifukwa cha kuphulika kwa madzi. Kusungidwa kwa madzi a cellulose ether kumatha kuchepetsa njirayi, kulola konkire kukhalabe ndi chinyezi kwa nthawi yayitali pamalo owuma, potero mogwira Kuchepetsa kuchitika kwa ming'alu.
The thickening zotsatira za mapadi etero mu konkire akhoza kusintha mphamvu yomangira konkire, kumapangitsanso compactness ndi kukhulupirika kwa kapangidwe kake mkati, ndi zina kuchepetsa chiopsezo ming'alu. Katunduyu amagwira ntchito mofunikira mu konkire yayikulu, matope osanjikiza kapena zinthu zopangira simenti.
5. Mmene konkire durability
Ma cellulose ether amalimbikitsa kukhazikika kwa konkriti m'njira zambiri. Choyamba, ma cellulose ether amatha kusintha kukana kwa chisanu ndi kukana kukokoloka kwa mchere wa konkire. Chifukwa cellulose ether imatha kuchepetsa ma pores a capillary mkati mwa konkriti ndikuchepetsa njira yolowera m'madzi, konkire imalimbana ndi nkhanza zakunja m'malo ozizira kapena malo osokonekera mchere.
Ma cellulose ethers amathandizira kachulukidwe ndi kukana ming'alu ya konkriti pothandizira kusunga kwake madzi komanso kukula kwamphamvu. Zinthuzi ndizothandiza kwambiri kwa moyo wautali wautumiki wa konkire, makamaka m'milatho, tunnel ndi ntchito zina zomwe zimakhudzidwa kwambiri ndi kukokoloka kwa chilengedwe. Kuphatikiza kwa cellulose ether kumatha kupititsa patsogolo kukhazikika kwa konkriti.
6. Mmene konkire kugwirizana katundu
Ma cellulose ethers amakhalanso ndi zotsatira zabwino pamagwiridwe a konkire, makamaka pa mphamvu yolumikizana pakati pa matope ndi maziko. Chifukwa ma cellulose ether amatha kukulitsa kukhuthala kwa konkriti, ndikosavuta kukhudzana kwambiri ndi zida zoyambira pakumanga, potero kumakulitsa magwiridwe antchito a awiriwo. Mbali imeneyi ndi yofunika kwambiri pa ntchito monga pulasitala pakhoma ndi kukonza mapulojekiti amene amafuna kwambiri zomatira.
Monga kusakaniza ndi ntchito yabwino kwambiri, cellulose ether imakhala ndi zotsatira zabwino pakugwira ntchito, kusunga madzi, mphamvu, shrinkage cracking ndi kulimba kwa konkire. Powonjezera kuchuluka koyenera kwa cellulose ether, magwiridwe antchito onse a konkire amatha kuwongolera bwino kuti akwaniritse zosowa zamitundu yosiyanasiyana yomanga. Komabe, mlingo wa cellulose ether uyenera kuyendetsedwa momveka bwino potengera zofunikira zenizeni za uinjiniya kuti tipewe kugwiritsa ntchito mopitilira muyeso komwe kungayambitse kuchepetsa mphamvu kapena zovuta zina.
Nthawi yotumiza: Sep-19-2024