Additivi per calcestruzzo leggero | Agenti schiumogeni ad alte prestazioni per cemento cellulare
What are IL three types of water reducing agents with different water reducing effects?
According to the effect of water-reducing agents, they can be divided into the following three categories: (1) normale agente riducente dell'acqua, noto anche come plastificante, il suo tasso di riduzione dell'acqua non è inferiore a 8%, and its main component is lignin sulfonate; (2) high-efficiency water-reducing agent, noto anche come superfluidificante, its water reduction rate is not less than 14%, and its main component is represented by tea water-reducing agent; (3) high-performance superplasticizer, its water reduction rate is not less than 25%, the polycarboxylic acid series superfluidificante is regarded as a representative.
What are the five main types of new efficient water reducing agents?
(1) Polycarboxylic acid series of water reducing agent: polycarboxylic acid type of water reducer molecules have a lot of chains. In the main chain there are some strong polar anion and the surface of the electrical layer combined together, which forms a hydrated film. Due to the above mentioned, it not only enhances the adsorption between molecules but also produces spatial steric resistance, and so it has a good plasticizing effect. Tuttavia, this kind of water-reducing agent is very expensive, so its application is limited to some extent. Attualmente, the polycarboxylate based superplasticizer with the comprehensive efficiency and high performance is the best water reducing agent.
(2) Naphthalene series efficient superplasticizer: naphthalene series efficient superplasticizer has electrostatic repulsion effect and molecular mutual repulsion between electric charges. Due to the certain decomposition on the cement in the hydration process of its own flocculation, the free water contained in it can be pushed out. Perciò, you can see the water reduction effect is obvious. Rispetto al superfluidificante della serie di acidi policarbossilici, Il superfluidificante della serie naftalene ha una tecnologia relativamente matura con un prezzo basso.
(3) Superfluidificante della serie dell'acido aminosolfonico: modified amino sulfonic acid series superplasticizer is a non-air-entraining resin type high-efficiency superplasticizer, whose water reduction rate can reach more than 25%, to the concrete workability and durability have significant enhancement. Tuttavia, il costo di produzione del superfluidificante della serie di acido solfammico è relativamente elevato. Quando il peso molecolare è troppo piccolo o troppo grande, è facile causare sanguinamento, segregazione e indurimento. Attualmente, the research of this kind of water-reducing agent is mostly effectively reduce the shortcomings in use and expand the market prospect through modifying aminosulfonic acid and dispersing cement particles.
(4) Superfluidificante ligninsolfonato modificato: modified lignosulfonate superplasticizer is obtained by modifying lignosulfonate. Il nuovo ligninsolfonato modificato è un agente di riduzione dell'acqua ad alta efficienza, its water-reducing rate is 1.5 times higher than that of other ordinary water-reducing agents. The hydration heat and collapse degree of cement are changed to effectively ensure the excellent performance of concrete, e il costo di produzione è basso, che è favorevole alla costruzione.
(5) Agente riduttore d'acqua ibrido: l'agente riducente dell'acqua viene miscelato mescolando il copolimero ad innesto di acrilato di copolimero quaternario, which contains amino benzene sulfonic acid maleic acid amide and vinyl pyrrole copolymer. And at the same time due to other copolymer containing sulfonic acid and carboxylic acid based combining together, the functions of their different anion and polarity of functionality can be used as a super plasticizer of a variety of polymers and copolymers, and so it can have cement particle effects. La produzione di superfluidificante misto è complicata, e l'ottimizzazione della quantità di miscelazione richiede molti esperimenti.
Cie-China.org è il principale fornitore di additivi per calcestruzzo espanso che fornisce agenti schiumogeni per calcestruzzo, superfluidificante,potenziatore della resistenza del calcestruzzo espanso per calcestruzzo leggero, Blocchi CLC. Se stai cercando superfluidificante, per favore sentitevi liberi di farlo contattaci.