Lightweight Concrete Additives | High-Performance Foaming Agents for Cellular Concrete
naphthalene superplasticizer, Iyo inozivikanwawo sepoly naphthalene sulfonate (PNS), ndiyo condensation chigadzirwa che b-naphthalene sulfonic acid uye formaldehyde. Iyo inonyatso shanda yekudzikisa mvura mumiririri ine yakakwira dispersibility, kupupa kwakaderera, kucherechedzwa kwekutanga-simba kuwedzera, uye kuchinjika kwakasimba kune simende. Inogona kushandiswa mukugadzirwa kwekrete yakajeka, kongiri yakakwirira-yakasimba, uye kongiri inoyerera.
Superplasticizers ndeye kongiri yakasanganiswa iyo inogona kuderedza mvura yemukati ne 12 ku 30 muzana uye kuwedzera simba uye kushanda nesimba munguva pfupi, kazhinji nekuwedzera kwechiyero chemvura-simende. Vane zvimwe zvakawanda zvinobatsira, kusanganisira antifreezing zvivakwa kudzivirira kongiri kubva kuchando kukuvara munguva yechando, kushanda zvakanaka kwekutanga, uye kuchengetedzwa kwakanyanya kwekudonha nenguva yekutanga yekumisikidza.
Naphthalene based superplasticizers anoshandiswa zvakanyanya kugadzira yakakwira fluidity kongiri, kongiri yakanaka, dense cladding kongiri, ndiro yakatetepa kongiri, uye zvimwe zvakaoma kongiri zvimiro. Dzinogona kushandiswa kumigwagwa mikuru, mabhiriji, madhamu, tunzira nezvimwe zvirongwa zvokuvaka.
Mubepa rino, iyo XRD mapatani eCSA paste uye C4A3S paste ane yakanyanya uye shoma dosages eBNS uye PC superplasticizers akaongororwa pa 2 h mushure mekusanganiswa. Kuenzaniswa nezvigadzirwa zve hydration zvakaumbwa mumareferensi samples pasina superplasticizers, iyo hydrated zvigadzirwa zvaive zvakanyanya kuomeswa uye iyo yepamusoro kukosha kwe ettringite, iwe elimite, uye anhydride yaive yakakura pamberi peBNS uye PC superplasticizers.
Maererano nemigumisiro, izvo zvigadzirwa zve hydrated muCSA paste ine yakanyanya dosage yeBNS uye PC superplasticizers yaive nehuwandu hwepamusoro hwe ettringite kupfuura iwo ari mumareferenzi samples.. Izvi zvaive zvichikonzerwa nekuti huwandu hukuru hwemahydrates hwakaumbwa mune aya mapete ane yakanyanya dosage yeBNS uye PC superplasticizers., zvichikonzera kuumbwa kwe ettringite.