Effect of foaming agent on fresh and hardened foam concrete
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Author : LZH
Update time : 2023-07-07 15:08:11
What is Foaming agent? The foaming agent used in the preparation of foam concrete had an important influence on the foam concrete properties (density, fluidity, stability, pore structure, etc.). The interaction between foaming agents and cement plays a more significant role in forming foam concrete. And the property of the gas-liquid interface of foam concrete is the most critical factor for the performance of foam concrete.
The preparation of low density foam concrete is still challenged However, the preparation of low-density foam concrete still needs to be challenged. The increase in the proportion of foam volume often leads to poor stability of fresh foam concrete paste and connectivity porosity of hardened foam concrete. These are mainly attributed to the evolution issues of foam in the new foam concrete paste. These are mainly attributed to the evolution of foam in the fresh foam concrete paste, that is, how the prefabricated foams react with the cement paste. This work explores the formation of pore structures in hardened foam concrete from the interfacial reaction between the foaming agent and cement paste. Therefore, four types of surfactants (anionic surfactant, cationic surfactant, non-ionic surfactant, and amphoteric surfactant) were used as foaming agents to prepare foam concrete. The interaction between foaming agent and cement paste and its effect on the formation of pore structure of foam concrete was studied.
Effect of foaming agent on fresh and hardened foam concrete Surfaces of fresh foam concrete slurry (Mpaste/Mfoams = 10:1) were immediately scraped with a scraper after pouring into molds. Scraped surfaces of fresh foam concrete slurry are shown in Fig. 4. Lots of air pores with a transparent layer existed on the surface of fresh foam concrete slurry when CTAB or OP-10 was used. Air pores on the surface of fresh foam concrete slurry using HP were convex, opaque, and coated with a cement paste layer. Four kinds of foaming agents were used in the study. Sodium dodecyl sulfate (SDS) was selected as an anionic surfactant. Cetyl trimethyl ammonium bromide (CTAB) was selected as a cationic surfactant.
Price of Foaming agent Foaming agent particle size and purity will affect the product's Price, and the purchase volume can also affect the cost of Foaming agent. A large amount of large amount will be lower. The Price of Foaming agent is on our company's official website.
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