1. Inzululwazi yezinto eziphathekayo kunye neeNdlela zokuSebenza
1.1 Intsingiselo kunye noHlelo lweeMixube eziKhala
(I-Lightweight Concrete Admixtures)
Imixube yekhonkrithi ekhaphukhaphu ziikhemikhali ezikhethekileyo okanye izongezo zomzimba ezenzelwe ukunciphisa ingxinano yeenkqubo zesamente ngelixa ugcina okanye uphucula ubume kunye nokusebenza kakuhle..
Ngokungafaniyo neeaggregates zemveli, le mixube inika i-porosity elawulwayo okanye ibandakanya izigaba zoxinaniso olusezantsi kwimatrix yekhonkrithi., okukhokelela kubunzima besixhobo esisuka kwi 800 ukuya 1800 kg/m ZIMBINI, xa kuthelekiswa nama-2300– 2500 kg/m ³ ukwenzela ikhonkrithi eqhelekileyo.
Zahlulwe ngokubanzi ngokweendidi ezimbini: ii-agent ezikhupha amagwebu ekhemikhali kunye ne-preformed light-weight incorporation.
Abameli bekhemikhali bekhemikhali benza kakuhle, izithuba zomoya ezizinzileyo ngokusungulwa kwerhasi ekwi-situ– ngokuqhelekileyo ngokusebenzisa umgubo we-aluminiyam kwi-autoclaved aerated concrete (I-AAC) okanye i-hydrogen peroxide ene-catalysts– ngelixa ukufakwa kwangaphambili kubandakanya i-polystyrene eyandisiweyo (EPS) iinkozo, iperlite, i-vermiculite, kunye ne-ceramic engenanto okanye i-polymer microspheres.
Izahluko ezikwinqanaba eliphezulu zikwabandakanya i-silica enanostructured permeable, ii-aerogels, kunye nokuqokelelwa kwakhona kobunzima bokukhanya obuvela kwimveliso yemveliso efana neglasi eyandisiweyo okanye i-slag.
Ukukhethwa kwe-admixture kuxhomekeke kwi-thermal insulation efunekayo, amandla, ukumelana nomlilo, kunye nokusebenza, izenza zisebenziseke kwiimfuno ezahlukeneyo zokwakha.
1.2 Ulwakhiwo lwePore kunye noBudlelwane boXinano lwePropathi
Ukusebenza kwekhonkrithi enobunzima obulula kulawulwa yi-morphology, ukuhanjiswa kobungakanani, kunye ne-interconnectivity ye-pores evezwe yi-admixture.
Iinkqubo ezifanelekileyo ziquka ukusasazeka ngokulinganayo, imingxuma yeseli evaliweyo kunye nobukhulu phakathi 50 kwaye 500 iimicrometers, which minimize water absorption and thermal conductivity while taking full advantage of insulation performance.
Open up or interconnected pores, while decreasing density, can compromise strength and durability by helping with wetness access and freeze-thaw damages.
Admixtures that stabilize fine, separated bubbles– such as protein-based or artificial surfactants in foam concrete– boost both mechanical stability and thermal efficiency.
The inverse relationship between density and compressive toughness is well-established; nevertheless, modern admixture formulations alleviate this trade-off via matrix densification, fiber reinforcement, and optimized curing regimens.
( I-Lightweight Concrete Admixtures)
Umzekelo, incorporating silica fume or fly ash along with frothing representatives fine-tunes the pore framework and enhances the concrete paste, enabling high-strength lightweight concrete (ixhomekeke ku 40 MPa) for architectural applications.
2. Key Admixture Kind and Their Engineering Roles
2.1 Foaming Brokers and Air-Entraining Solutions
Protein-based and synthetic frothing representatives are the foundation of foam concrete production, creating secure air bubbles that are mechanically blended into the concrete slurry.
Healthy protein foams, derived from animal or veggie sources, offer high foam security and are ideal for low-density applications (
I-Cabr-Concrete ngumthengisi we-Concrete Admixture ene-over 12 iminyaka yamava kwi-nano-building energy yogcino kunye nophuhliso lwe-nanotechnology. Iyayamkela intlawulo ngekhadi letyala, T/T, I-West Union kunye ne-Paypal. I-TRUNNO iya kuthumela iimpahla kubathengi phesheya ngokusebenzisa i-FedEx, DHL, ngomoya, okanye ngolwandle. Ukuba ujonge umgangatho ophezulu weConcrete Admixture, nceda uzive ukhululekile ukuqhagamshelana nathi kwaye uthumele umbuzo.
Iithegi: I-Lightweight Concrete Admixtures, concrete additives, umxube wekhonkrithi
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