Synthesis and Properties of a Polycarboxylate Superplasticizer with a
Polycarboxylate superplasticizers (PCEs) emerged as one of the most important superplasticizers for concrete due to their superior performance. (1,2) Compared to other products like polycondensates, they fluidize cement even at low water to cement ratios, require relatively low dosages, and exhibit a long slump retention capability. (35) The
Progresses in Synthesis of Polycarboxylate Superplasticizer - Hindawi
The prerequisite to synthesize PCE was to prepare new macromonomers with controlled molecular mass, adjustable hydrophilic-lipophilic groups, long-chain alkyl groups, and large terminal hydroxyl groups as well. Structural modifications in the molecular scale of polycarboxylate superplasticizer (PCE) would lead to changes in properties of dispersion and water retention as well as enhancement in
Polycarboxylate Superplasticizers - Concrete Construction
Very often, a superplasticizer will be formulated with a blend of two or more PCEs to achieve a combined performance of both early strength and long slump life. Researchers will continue to actively manipulate PCE polymer structure to meet the ever changing material and construction requirements.
Progresses in Synthesis of Polycarboxylate Superplasticizer - ResearchGate
method of polycarboxylate superplasticizer at room tem- perature,” CN Patent 101974135, 2011. [57] C. J. Shi, “A new kind of synthesis method of polycarboxylate
Superplasticizer: Types, Advantages & Disadvantages - Constructionor.Com
1. Superplasticizers reduces the water content. 2. It reduces the cement content. 3. Also, increases the workability of concrete. 4. It reduces the permeability of concrete. 5. They are easy to placement. 6. Increased long terms. 7. It develops the early strength. Disadvantages of Superplasticizer: 1.
- What is polycarboxylate superplasticizer?
- polycarboxylate superplasticizer is a new type concrete admixture for green concrete. It can be used in high strength concrete, high performance concrete, mass concrete and high quality flow plastic concrete. (1) A kind of anionic / non-ionic liquid admixture, low-chloride, low-alkali, non-toxic, free effect on ecological environment.
- Are polycarboxylate superplasticizers good for concrete admixture?
- Polycarboxylate superplasticizers have become one of the most important superplasticizers in the concrete admixture market, that’s due to its outstanding advantages, such as high water-reducing rate, good effect, good adaptability with cement, and slump protection performance.
- What is a polycarboxylate ether superplasticizer?
- The polycarboxylate ether superplasticizer is an additive commonly used in concrete engineering and has a wide range of applications. The PCE based admixture can significantly reduce the amount of cement and improve the fluidity and pumpability of concrete while ensuring the strength and durability of concrete.
- What is the water reduction rate of polycarboxylate based superplasticizer?
- They are PCE liquid for high water reduction and PCE liquid for High Slump Retention, and PCE powder. Although their appearance and specifications are different, the water reduction rate of polycarboxylate based superplasticizer can reach more than 25%. The following is the detailed introduction:
- What is polycarboxylate superplasticizer (high slump retention)?
- Polycarboxylate superplasticizer (High Slump Retention) is clear transparent liquid. It is designed to enhance concrete workability and maintain a high slump for extended periods. What’s more, PCE superplasticizer also shows great performance in hot environments.
- How to store PCE polycarboxylate superplasticizer?
- The PCE polycarboxylate superplasticizer should be stored in a cool, dry and well-ventilated place, avoiding direct sunlight and rain. At the same time, it should be kept away from fire and heat sources to prevent fire or explosion accidents. Water seepage problem.
