The role of auxiliary bubble stabilization.
With the amount of hydroxypropyl methylcellulose added to 0.5%, the slump decreased slightly. The data clarify that the participation of the hydroxypropyl methylcellulose content shows the significant improvement of the mobility and viscosity of the foam concrete slurry. The methylcellulose formed a moist and flexible elastic film between the solid phase particles and the gas phase bubble. Which played an excellent smooth effect during the mixing process. HPMC
It also makes the bubble turn into a uniform “ball”, effectively improving the fluidity of the new slurry. But the amount of hydroxypropyl methyl cellulose exceeds 0.5%, the slurry will become too thick. Liquidity is greatly reduce. However, 0.05% hydroxypropyl methyl fiber cables ensure both slump and secure bubbles for ambition.HPMC
The reduced height reduction in the mold characterized the effect of hydroxypropyl methylcellulose on the volume stability of the foam mixer. It can be seen that 0.05% of the hydroxypropyl methylcellulose dosage is the ambitious dosage, and when the hydroxypropyl methylcellulose is 0.05%, the height increase is reduce. Analysis thought. HPMC
When hydroxypropyl methylcellulose is appropriate, its improvement of slurry fluidity also reduces the volume of the hardened body. Water is constantly lost during the process of slurry hardening. Its internal foam is also constantly disillusione, hardening body shortening is inevitable. This caused the hardening body volume is unstable, and hydroxypropyl methylmethyl cellulose mixing is both for the hardening body provides outstanding water retention effect, and can through slurry hardening and hydroxypropyl methylcellulose film hardening characteristics to secure hardening * * foam, and then have outstanding steady bubble effect, cut the hardening body volume.HPMC