In recent years, with the continuous development of external wall insulation technology, the continuous progress of cellulose production technology, and the excellent characteristics of cellulose itself, HPMC cellulose has been widely used in the construction industry. In order to understand the mechanism of action of cellulose and cement-based materials in depth, a brief introduction to the improvement effect of cellulose on cement-based materials' cohesive properties.
1.Setting time.
Experimental reaction, the addition of cellulose has obvious retarding effect on the mortar mixture, and with the increase of the amount of cellulose, the setting time of the mortar has been extended,
2. Water demand of mortar.
In the case of a small amount of cellulose, it has a great influence on the water demand of the mortar. Under the condition that the expansion of freshly mixed mortar is basically the same,
The amount of cellulose and the water demand of the mortar change linearly within a certain period of time. The water demand of the mortar first decreases and then increases significantly.