In engineering construction, some additives need to be added to improve construction efficiency and effect. Additive types Paul ready-mixed mortar additives, cellulose ether, retarder, redispersible latex powder, air-entraining agent, early strength agent, water reducer and other modified additives. These additives greatly improve the physical and mechanical properties of ready-mixed mortar.
1. Ready-mixed mortar additive
The anionic surfactant contained in the ready-mixed mortar additive in the project can disperse the cement particles and release the free water encapsulated by the cement aggregate. Fully make the condensed cement group diffuse and completely hydrate. Achieve compact structure, increase mortar strength, improve impermeability, crack resistance and durability. The mortar mixed with ready-mixed mortar additives has good workability, high water retention rate and strong cohesive force during operation. Non-toxic, harmless, safe and environmentally friendly.
It is suitable for the production of ordinary masonry, plastering, ground and waterproof mortar in ready-mixed mortar factories. Concrete clay bricks, ceramsite bricks, hollow bricks, concrete blocks, unburned brick masonry, interior and exterior wall plastering, concrete simple wall plastering, floor and roof leveling, waterproof mortar for various industrial and civil buildings Waiting for construction.
2. Cellulose ether
In ready-mixed mortar, cellulose ether is a very low addition. But it can significantly improve the performance of wet mortar and is the main additive that affects the construction performance of mortar. Reasonable selection of cellulose ethers of different varieties, different viscosities, different particle sizes, different degrees of viscosity and added amounts. It has a positive impact on the improvement of the performance of dry powder mortar.
The production of cellulose ether is mainly made of natural fibers through alkali dissolution, grafting reaction (etherification), washing, drying, submersion and other processes.
In the production of building materials, especially dry powder mortar, cellulose ether plays an irreplaceable role. Especially in the production of special mortar (modified mortar), it is an indispensable and important part. Cellulose ether plays the role of water retention, thickening, delaying the hydration power of cement, and improving construction performance. Good water retention capacity makes cement hydration more complete. Can improve the wet stickiness of wet mortar. To improve the bonding strength of the mortar, the time can be adjusted.
Adding cellulose ether to mechanical spraying mortar can improve the spraying or pumping performance and structural strength of the mortar. Therefore, cellulose ether is being widely used as an important additive in ready-mixed mortar. The cellulose ethers used in ready-mixed mortar are mainly methyl hydroxyethyl cellulose ether and methyl hydroxypropyl cellulose ether, which account for more than 90% of the market.
How Additives Improve Mortar Performance? (2)
How Additives Improve Mortar Performance?(3)