HPMC (derived methylcellulose) is a commonly used construction chemical widely evaluated in the construction of self-leveling floors.
Self-levelling compounds are chemical mixtures used to level uneven concrete or wooden floors. They consist of cement, sand, fillers and are modified by a range of additives such as cellulose ethers, plasticisers, defoamers, stabilisers and re-dispersible powders. As a flowable, self-levelling and self-levelling material, self-levelling compounds produce a flat, smooth and hard surface with excellent compressive strength.
Suitable for any type of flooring.
Flat, level and smooth surfaces.
Improves the flow of self-levelling mortar.
Enhances the load bearing capacity of the floor.
Repairs cracks and imperfections in the subfloor.
Long-lasting and cost-effective, with good workability.
Self-leveling floors refer to the use of special construction techniques and materials to allow the ground to level naturally during the construction process to form a smooth surface. HPMC plays an important role in self-leveling floors and has the following applications:
Hydration conditioner: HPMC can be added to the self-leveling floor mixture as a hydration regulator to adjust the fluidity and setting time of the mixture. By adjusting the amount of HPMC added, the fluidity of the ground mixture can be controlled, making it easier to flow and smooth during the construction process.
Improve construction performance: HPMC can form a viscous colloid in the mixture, which can improve the construction performance of self-leveling floors. It can increase the viscosity and cohesion of the mixture, prevent the mixture from delaminating or separating during the flow process, and improve the efficiency and quality of construction.
Control shrinkage and cracking: Self-leveling floors may suffer from shrinkage and cracking during the curing process, and HPMC can control the occurrence of these problems to a certain extent. It can provide a certain degree of flexibility and ductility, reducing stress concentration during the curing process of the floor, thereby reducing the risk of cracking.
Improved durability: HPMC can improve the durability and stain resistance of self-leveling floors. It can form a uniform protective film, forming an anti-penetration and anti-pollution barrier on the floor surface, improving the durability and ease of cleaning of the floor.
It should be noted that the specific application method and addition amount of HPMC should be adjusted according to the specific construction requirements and material ratio. In actual construction, it is recommended to follow relevant construction specifications and instructions to ensure the construction effect and quality of self-leveling floors.
What are the main components of self-levelling mortars?
They consist of cement, sand, fillers modified by a range of additives such as cellulose ethers, plasticisers, defoamers, stabilisers and re-dispersible powders.
What are the characteristics of self-levelling mortars?
A self-levelling compound acts as a flowable, self-levelling and self-smoothing material to produce a flat, smooth, hard surface with excellent compressive strength.
What are the advantages of self-levelling cement floor?
1、No gap, the ground is flat, smooth and beautiful after construction.
2、Self-levelling cement floor has a certain degree of elasticity, more resistant to impact, abrasion, pressure and dirt.
3、Self-levelling cement floor construction is simple, fast, safe and environmentally friendly, good moisture resistance, dustproof and waterproof, corrosion resistance, acid and alkali resistance.
4、Self-levelling cement floor is rich in colour and has good decorative effect.
How to do the pretreatment of self-levelling base surface?
1、If it is a small crack, you can use epoxy resin adhesive filling.
2, if the grass-roots cracks are more, just lay a layer of anti-cracking mesh cloth for reinforcement, and then cover it with repair mortar.
3、Finally, a layer of quartz sand can be sprinkled to improve adhesion.
How to deal with the edge seam of self-levelling mortar?
There are various treatment methods, such as metal seam strips, flat compression strips, door stones, high and low buckles, and so on.
How to remove self-levelling bubbles?
Self-levelling cement contains mixing powder and water, so there will be air bubbles. Defoaming is mainly divided into three steps:
1. After mixing, let it stand for a while.
2. Spike shoes should be worn during construction to puncture the air bubbles.
3.Use defoaming roller, general defoaming roller roll two circles can be, roll more circles will leave roller marks.
4. If there is a stainless steel needle type defoaming roller, the effect is better.
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