HPMC (new generation cellulose) is a commonly used construction additive widely used in masonry mortars.HPMC is a key additive in dry mortar mixes. It is commonly used in all forms of cementitious mortars.
It has many properties that contribute to the performance of mortars, such as water retention and film formation.
HPMC powders prevent the mortar from drying out too quickly. Our HPMC products have excellent water retention in different dry mortar mixes. It is also an excellent dispersant and thickener. It improves the bonding of mortars and improves workability.
The following are several main applications of HPMC in masonry mortar:
1. Thickener: HPMC can thicken masonry mortar to give it appropriate viscosity and fluidity. Thickened masonry mortar is easy to construct and plastically deform, helping to improve the bonding properties of masonry mortar.
2. Water retaining agent: HPMC can absorb and retain moisture to prevent premature water loss of masonry mortar. This helps extend the operable time of the masonry mortar, improves construction efficiency, and promotes full hardening of the masonry mortar.
3. Prevent sinking and delamination: HPMC can provide higher viscosity of masonry mortar and reduce the sinking and delamination of particles. This helps to improve the uniformity and stability of the masonry mortar and ensures the quality of the masonry wall.
4. Improve durability: HPMC can improve crack resistance and durability of masonry mortar. It forms a thin, uniform protective film that provides excellent resistance to penetration and weathering, extending the life of masonry walls. It should be noted that the specific HPMC dosage and usage methods may vary according to different mortar formulas and construction requirements. Therefore, before using HPMC, it is recommended to refer to relevant technical guidelines or consult professionals to ensure correct use and effect.
Packaging: 25kg/bag; 500-600kg/pallet.
Packaging material: Multi-layer paper bags, lined with PE.
Appearance: Support customised design.
How does HPMC work in mortar?
- Water retention
HPMC is a polymer that forms a mesh structure that encapsulates the cement and water mixture. This structure prevents water loss and slows down the hydration of the cement.
- Thickening principle
HPMC has a film-forming and reticular structure. Together with the hydroxyl groups in the long polymer chains, it ensures a stable mortar structure. Ensures a stable mortar structure. HPMC introduces many tiny, dispersed air bubbles that hinder the settling of aggregates. It favours cementitious materials such as dry mortars and polymer-modified mortars. Provides excellent water retention and workability.
What are the uses of dry mortars?
Dry mortar is suitable for more delicate works such as grouting, tile repair, reinforcing or repairing concrete.
How is dry mortar manufactured?
Dry mortar is manufactured in a specialised plant with dedicated facilities for batching and mixing all the necessary ingredients in a controlled production process. It provides excellent technical properties for construction work to meet stringent performance requirements. It is a proportionally blended mixture of cement, sand, minerals and functional additives.
Why does the addition of cellulose ether lead to an increase in the volume of mortar?
Cellulose ether has the effect of water retention, thickening, entrapping air and delaying setting time, etc. The entrapped air increases the volume of the mortar, ensures bonding and prevents dispersion of the mortar.
Related Products
