1. Material Science thiab Functional Mechanisms
1.1 Lub ntsiab lus thiab kev faib tawm ntawm Cov Khoom Siv Hluav Taws Xob
(Lub teeb yuag Concrete Admixtures)
Cov pob zeb sib xyaw ua ke yog cov tshuaj tshwj xeeb lossis cov khoom siv lub cev tsim los txo qhov ntom ntawm cov cementitious systems thaum khaws cia lossis txhim kho cov qauv thiab kev ua haujlwm zoo..
Tsis zoo li tsoos aggregates, cov admixtures tam sim no tswj porosity lossis suav nrog cov theem qis qis rau hauv cov pob zeb matrix, ua rau cov khoom hnyav feem ntau xws li los ntawm 800 rau 1800 kg/m ob, contrasted rau 2300– 2500 kg/m³ rau cov pob zeb tsis tu ncua.
Lawv tau dav categorized rau hauv ob hom: chemical frothing agents thiab preformed light-weight incorporations.
Chemical frothing cov neeg sawv cev tsim kom zoo, ruaj khov huab cua sib txawv ntawm in-situ gas launch– Feem ntau los ntawm txhuas hmoov hauv autoclaved aerated qhob (AAC) los yog hydrogen peroxide nrog catalysts– Thaum preformed inclusions muaj broadened polystyrene (EPS) nplej, perlite, vermiculite, thiab hollow ceramic los yog polymer microspheres.
Advanced variants kuj suav nrog nanostructured permeable silica, aerogels, thiab rov siv dua lub teeb-hnyav tsub zuj zuj ntawm cov khoom lag luam los ntawm cov khoom xws li broadened iav los yog slag.
Kev xaiv ntawm cov khoom sib xyaw yog nyob ntawm qhov xav tau thermal rwb thaiv tsev, lub zog, hluav taws kub, thiab ua haujlwm tau zoo, ua rau lawv ntau yam rau ntau yam kev tsim vaj tsev.
1.2 Pore Structure thiab Density-Property Relationships
Kev ua tau zoo ntawm lub teeb-hnyav pob zeb yog qhov tseem ceeb tswj hwm los ntawm morphology, kev faib tawm loj, thiab interconnectivity ntawm pores qhia los ntawm cov tshuaj tov.
Cov txheej txheem zoo tshaj plaws suav nrog kev sib kis sib npaug, kaw-cell pores nrog qhov ntau thiab tsawg ntawm 50 thiab 500 micrometers, uas txo qhov nqus dej thiab thermal conductivity thaum ua kom zoo dua ntawm kev ua haujlwm rwb thaiv tsev.
Qhib los yog interconnected pores, thaum txo qhov ceev, tuaj yeem cuam tshuam lub zog thiab kav ntev los ntawm kev pab nrog ntub dej nkag thiab khov-thaw puas.
Admixtures uas stabilize zoo, cais npuas– xws li cov protein-raws li los yog dag surfactants hauv cov pob zeb ua npuas ncauj– boost ob mechanical stability thiab thermal efficiency.
Qhov sib txawv ntawm qhov sib txawv ntawm qhov ntom ntom thiab compressive toughness yog tsim tau zoo; txawm li ntawd los, niaj hnub admixture formulations alleviate no pauv-tawm ntawm matrix densification, fiber reinforcement, thiab optimized curing regimens.
( Lub teeb yuag Concrete Admixtures)
Piv txwv li, incorporating silica fume los yog ya tshauv nrog rau cov neeg sawv cev frothing fine-tunes lub pore moj khaum thiab txhim kho cov pob zeb muab tshuaj txhuam, enabling high-strength lightweight pob zeb (mus txog 40 MPa) rau kev siv architectural.
2. Qhov Tseem Ceeb Admixture Hom thiab Lawv Lub Luag Haujlwm Engineering
2.1 Foaming Brokers thiab Air-Entraining Solutions
Protein-based thiab hluavtaws frothing cov neeg sawv cev yog lub hauv paus ntawm kev tsim ua npuas ncauj, tsim kom muaj kev ruaj ntseg cua npuas uas yog mechanically sib xyaw rau hauv cov pob zeb slurry.
Noj qab nyob zoo protein foams, muab tau los ntawm tsiaj los yog veggie qhov chaw, muab siab ua npuas ncauj kev ruaj ntseg thiab yog zoo tagnrho rau cov ntaub ntawv tsawg-density (
Cabr-Concrete yog tus xa khoom ntawm Cov Khoom Siv Khoom Siv nrog dhau 12 xyoo dhau los hauv nano-tsim hluav taws xob txuag thiab kev tsim kho nanotechnology. Nws lees txais kev them nyiaj ntawm Credit Card, T/T, West Union thiab Paypal. TRUNNANO yuav xa cov khoom rau cov neeg siv khoom txawv teb chaws los ntawm FedEx, DHL, los ntawm huab cua, los yog hiav txwv. Yog hais tias koj tab tom nrhiav rau siab zoo Concrete Admixture, thov koj xav tiv tauj peb thiab xa cov lus nug.
Cim npe: Lub teeb yuag Concrete Admixtures, pob zeb additives, kev sib xyaw ua ke
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