Cellular Concrete Foaming Agent

A cellular concrete foaming agent yog ib qho ntawm cov khoom tseem ceeb ntawm cellular lightweight concrete. Qhov foamed concrete no yog npaj los ntawm kev siv cov tshuaj ua pa los ntawm foaming agent ntawm qib ntsuas thiab sib tov nrog cement slurry kom tsim tau ib qho qauv kaw cell.

Cov qauv cellular ntawm cement muaj cement,, u, aggregate, thiab huab cua voids uas muaj qhov capillary pore volume mus txog 70%. Nws yog qhov hnyav tsawg thiab tiv taus kev nias.

Nws tseem ceeb kom to taub microstructure ntawm cellular concrete vim nws cuam tshuam rau thermal resistance, sarptivity coefficient, thiab cov yam ntxwv tshuab. Nws tseem muaj kev cuam tshuam loj rau kev nqus dej.

Muaj ntau hom foaming agents tau sim los txiav txim lawv qhov cuam tshuam rau cellular concrete. Results indicate that the type of foaming agent has a major effect on both thermal and sorptivity properties but less of an impact on the mechanical properties.

Foaming agents with a high dilution ratio have been found to be more stable than those with lower dilution ratios. This is because the foaming agent can bind the water in an even distribution throughout the foam. This binding of the water enables the concrete to set in a shorter period of time and achieve greater strength.

The water-cement ratio is a critical factor in determining the density and strength of the foamed concrete mixture. The density and strength of the concrete drop off dramatically when the water-cement ratio exceeds 0.5. However, Lub zog tshuab siab tshaj plaws ntawm cellular concrete tuaj yeem ua tau thaum dej-cement ratio nyob nruab nrab 0.4 thiab 0.5.