With the rapid development of the construction industry, technological innovation in building materials has become the key to improving engineering quality and efficiency. Superplasticizer, as an important concrete admixture, are increasingly being used in mortar.
Definition:
Superplasticizer is a chemical additive that can significantly reduce the amount of water used in concrete or mortar while maintaining its workability. Superplasticizer are commonly used in mortars that require good fluidity, such as self leveling cushion layers, surface layer mortars, and grouting materials. According to their water reducing effect and chemical composition, water reducing agents can be divided into the following categories:
- Ordinary Superplasticizer(first generation):
Such as Lignin sulfonates with a water reduction rate of about 5% -10%, has a certain air entraining function, strong retardation, is prone to mold growth, and affects mold forming.
- High efficiency Superplasticizer(second generation):
Such as naphthalene sulfonate formaldehyde condensate water reducer and sulfonated melamine formaldehyde condensate water reducer, with a water reduction rate of up to 15% -30%. Easy to introduce air but with a high rate of fluidity loss.
- High performance Superplasticizer(third generation):
Represented by polycarboxylate series, with a water reduction rate of over 30%, it has the characteristics of high water reduction rate, efficient dispersibility, excellent slump retention and adaptability, and good construction performance.
Among them, polycarboxylate superplasticizers have become the mainstream products in the current market due to their environmental friendliness, high efficiency, and multifunctionality. Plays an important role in mortar.
The advantages and functions of Superplasticizer in mortar:
The application of superplasticizers in mortar is mainly reflected in the following aspects:
A). Improving work performance:
By reducing water usage, superplasticizers can significantly enhance the fluidity and pumpability of mortar, making it easier to construct.
B). Enhancing mechanical properties:
Reducing the water cement ratio can improve the compactness of mortar, thereby enhancing its compressive strength, flexural strength, and durability.
C). Cost saving:
Reducing cement and water usage not only lowers material costs, but also reduces energy consumption and carbon emissions, in line with the development trend of green buildings.
D). Adapting to diverse needs:
Superplasticizerss can adjust the setting time and hardening speed of mortar according to engineering requirements, meeting the requirements of different construction conditions.
Currently, many well-known building materials companies worldwide are using superplasticizers in mortar products. For example, BASF’s MELFLUX ‘2651F and Sika’s 540P.
It is worth mentioning that Celotech’s Ultraplast®superplasticizer series products have also performed outstandingly in the global market. Among them, Ultraplast ® PC10 and Ultraplast ® PC16 is highly favored for its excellent dispersibility, high water reduction rate, and good adaptability to various brands of cement. These two products are particularly suitable for the production of dry mixed mortar, wear-resistant flooring, self leveling flooring, and grouting materials,etc. Its excellent liquidity not only improves construction efficiency, but also ensures the uniformity and durability of the final product. Coupled with its competitive price, it has gradually become the first choice for many customers in the building materials industry.
Benefits of Ultraplast
- High dispersion:
The high dispersion with controlled-release function was developed aiming at optimizing the formulation of self leveling mortar with large flow loss and unstable quality of raw materials.
- High plasticizing effect：
Good initial dispersion, offer high plasticizing effect. And the high static yield stress, low dynamic yield stress and low plastic viscosity make it a good suspension stability aid and a good performance retainer.
- Good adaptability：
Give good adaptability with different raw materials like cement, gypsum, defoaming agent, retarder, expansion agent, hardening agent and so on.
These successful experiences all indicate that superplasticizers play an irreplaceable role in improving the performance of mortar. With its high water reduction rate, excellent fluidity, and wide adaptability, it has become an ideal choice in fields such as dry mix mortar, wear-resistant flooring, and self leveling flooring. In the future, with the continuous innovation of technology and the sustained growth of market demand, superplasticizers will play a more important role in the building materials industry.
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