Concrete Foam Agent

concrete foam agent siv los ua pob zeb nplaum txhua hom. Nws tuaj yeem siv rau txhua hom Portland cement thiab sand-cement mortar slurries los tsim pob zeb nplaum txhua hom thiab rau txhua yam kev siv.

Cov tshuaj ua npuas muaj ntau hom thiab cov khoom siv, thiab feem ntau muag ua cov khoom ntxiv uas muaj muag rau kev tsim pob zeb nplaum nplaum. Lawv tuaj yeem yuav ntawm tus neeg muag khoom lossis ntawm qhov chaw tsim kho, thiab tsuas yog ib feem me me ntawm tus nqi ntawm pob zeb nplaum nplaum.

Lub zog ntawm pob zeb nplaum nyob ntawm qhov ntom, dej thiab qhov loj ntawm qhov chaw tsis muaj cua [27,84]. Cov sib tov uas muaj qhov loj me me ntawm qhov chaw cua muaj zog nias thiab tig siab dua cov uas muaj qhov chaw cua dav.

Density varies with different foaming agents and gradation of aggregate [57]. Using silica fume or RCA in foam concrete prepared with FA increases the density of the mixture.

Workability is also affected by the composition of the foaming agent and the sand-cement paste mixture. Increasing the concentration of superplasticizers in the foamed concrete mixture improves workability.

A study comparing protein-based foaming agents and synthetic foaming agents with high foam concrete densities found that the pore structure of foamed concrete prepared with protein-based foaming agents was more compact than those produced with synthetic foaming agents. This was due to the fact that the pore walls of foam concrete containing protein-based foaming agents were thicker and less connected than those containing synthetic foaming agents.