Polycarboxylic Acid High Performance Powder Water Reducer Polycarboxylate Superplasticizer Powder

Introduction of Polycarboxylate Superplasticizer Powder

Polycarboxylic acid high-performance powder water reducer 26C is a powder water reducer that is made by adding various additives such as inhibitors and anti-adhesive agents to liquid water reducers, pre-screening them through a spray drying tower, and then adding stabilizers. It retains the water-reducing, slump-retaining, and durability properties of the water reducer and can adapt to various construction environments.

Working Principle of Polycarboxylate Superplasticizer Powder

After the cement is mixed with water, the water will be wrapped in the cement particles, so more water needs to be added, which leads to a significant decrease in the quality of the concrete. After adding the water reducer, the water reducer molecules will wrap around the cement particles and release water molecules, thereby reducing the amount of water, thereby improving the fluidity, durability and other properties of the concrete.

Homogeneity index test results
No.	Test items		Technical indicators	Test results	Result judgment
1	Chloride ion content (%)		≤0.1	0.01	Passed
2	Total alkali content (%)		Do not exceed the control value of the manufacturer	0.61	Passed
3	Water content (%)		When W≤5%, it should be controlled at 0.80W~1.20W	2	Passed
4	PH value		Should be within the control range of the manufacturer	8	Passed
5	Sodium sulfate content (%)		Do not exceed the control value of the manufacturer	0.12	Passed
6	Fineness (%)		Should be within the control range of the manufacturer	0.15	Passed
Test results of concrete performance indicators
No.	Test items		Technical indicators	Test results	Result judgment
1	Water reduction rate (%)		≥25	41.1	Passed
2	Water seepage rate ratio (%)		≤60	23.6	Passed
3	Air content (%)		≤6.0	2.0	Passed
4	Setting time difference	Initial setting	-90~+120	+35	Passed
5		Final setting		+20	Passed
6	Change in 1h	Slump (mm)	≤80	22	Passed
7	Compressive strength ratio (%)	1d	≥170	201	Passed
		3d	≥160	188	Passed
		7d	≥150	165	Passed
		28d	≥140	159	Passed
8	Shrinkage ratio (%)		≤110	101	Passed

Feature of Polycarboxylate Superplasticizer Powder

1）High water-reducing rate: with a low dosage, it has a very high water-reducing rate, which greatly improves the fluidity of concrete or mortar.

2) High workability: it can effectively increase the fluidity of concrete and reduce water secretion and segregation, thus improving the compatibility of concrete, easy to construct and compact. It is easy to be pumped with low resistance and easy to be transported.

3) Early strength and high strength performance: the concrete prepared with 26C superplasticizer products can effectively improve the early strength and late strength of concrete.

4) High durability: the product has low chloride ion content and low alkali content, which can increase the densification of concrete and significantly improve the impermeability, frost resistance and carbonation resistance of concrete.

5) Low shrinkage: the 28d shrinkage rate of hardened concrete is 20% lower than that of the second generation of water-reducing agent, which can significantly reduce the shrinkage of concrete and improve the volume stability and durability of concrete.

6) Strong adaptability: good compatibility with all kinds of cement and fly ash, slag and other admixtures, good slump maintenance performance of concrete.

7) High economy: it can reduce cement consumption by 20%, and reduce the comprehensive project cost.

8）Green environmental protection: non-toxic, non-irritant, non-radioactive, belongs to the non-flammable, explosive hazardous materials, and will not cause corrosion of reinforcing steel, in line with ISO 14000 international standards for environmental protection management.

Applications of Polycarboxylate Superplasticizer Powder

Precast concrete

Cast-in-place concrete

Besides, there are many other applicaiton areas of concrete superplasticizer: Reinforced concrete, Prestressed concrete, Gravity leveling pad, No shrinkage grouting, Cement rapid setting floor, Repair mortar and dry mixed concrete.

Performance and Applicable Objects of Polycarboxylate Superplasticizer Powder

1. Polycarboxylic acid high-performance powder water reducer has an ultra-high water reduction rate, which can reach more than 40%.
2. It has strong adaptability to cement and has good adaptability to most cement on the market.
3. Improve the fluidity of cement slurry and mortar on a large scale (self-leveling is possible)
4. Significantly increase the strength of cement slurry and mortar (28-day compressive strength easily reaches more than 50 MPa)

Recommended addition amount: 0.1%-0.2% of cementitious materials.

Usage and precautions of superplasticizer powder

1）Measurement should be accurate; when preparing high-strength concrete, attention should be paid to the quality of mixing and mechanical equipment and the order of adding materials.

2）When formulating into low-strength product, it should be compounded according to the proportion provided by the test, and attention should be paid to mixing evenly.

3) The recommended dosage in all kinds of dry powder materials is 0.2-0.3% of the cementitious materials, and in general, the dosage is 0.5-1.5% of the weight of the cementitious materials when converted to 20% solid content, and the recommended dosage is 1.0%. In the process of using the product, the amount of water brought in by compounding should be deducted.

4) When using this product, please refer to this instruction to make the necessary concrete proportion test according to the specific construction conditions in order to get the best use effect.

5) It has good adaptability to most cement varieties, but the water reduction rate may be low, and slump loss may need to be faster for individual batches of cement. In addition, the storage time and fineness distribution of cement may also affect the use of its effect; when replacing the cement batch or variety, the concrete test should be done first to confirm the adaptability of cement.

6) 26C polycarboxylic acid powder is generally not mixed with most other kinds of admixtures, such as naphthalene water-reducing agents. When it is necessary to mix, its adaptability should be confirmed by test.

Safety and Precautions of Polycarboxylate Superplasticizer Powder

1. Polycarboxylate water reducer powder is a weakly alkaline solid, non-toxic, non-corrosive, and environmentally friendly. However, it is not edible. When in contact with the human body or eyes, it should be rinsed with clean water as soon as possible. If it causes allergies to some people, it should be treated in time.
2. Polycarboxylate water reducer powder should be stored in a cardboard barrel lined with a plastic bag to avoid rainwater and debris.
3. The shelf life of polycarboxylate water reducer powder is 12 months.

Company Profile

Cabr-Concrete is the global leader in Low-Density Cellular Concrete (LDCC), Celluar Light Concrete (CLC), and advanced engineered foam solutions. Known globally for its commitment to research, innovation, and applied expertise, we have been providing engineered foam solutions since the early 2012’s.

We are a professional supplier of concrete admixtures and can provide polycarboxylate superplasticizer, concrete accelerator, concrete foaming agent, concrete reinforcement, redispersible polymer powder, HPMC hydroxypropyl methylcellulose, PVA fiber, PP fiber, etc.

The company has a professional technical department and quality supervision department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center. Send us an email or click on the needed products to send an inquiry.

If you want to know more about Polycarboxylate Superplasticizer Powder, please feel free and contact us: sales@cabr-concrete.com

Package of Polycarboxylate Superplasticizer Powder

25Kg woven outer bag lined with plastic bag, stored at room temperature away from light, moisture and rain.

Storage of Polycarboxylate Superplasticizer Powder

Paper plastic composite packaging lined with plastic bags.

Payment

T/T, Western Union, Paypal, Credit Card etc.

Shipment

By air, by sea, by express, as customers request.

FAQ of Polycarboxylate Superplasticizer Powder

Q1

What are the precautions for using concrete water reducing agent?

Answer: When using concrete water-reducing agent, you should pay attention to the following points: First, the water-reducing agent should be added in proportion to avoid excess or deficiency; second, the water-reducing agent and concrete should be fully mixed evenly; finally, attention should be paid to controlling the construction temperature and time , to avoid affecting the effect of water reducing agent.

Q2

What impact does concrete water reducing agent have on the performance of concrete?

Answer: Concrete water reducing agent mainly affects the fluidity and strength of concrete. By reducing water consumption, water-reducing agents can improve the strength indicators such as compression and flexural resistance of concrete. At the same time, it improves the workability of concrete, making it easier to pour and compact.

Q3

How to choose a suitable concrete water reducing agent?

Answer: Choosing a suitable concrete water-reducing agent needs to consider factors such as project requirements, raw material properties, and construction environment. The appropriate type and brand of superplasticizer should be selected according to the specific situation, and used in accordance with the recommended dosage provided by the manufacturer.

Q4

What problems may occur during the use of concrete water-reducing admixtures?

Answer: Problems that may occur during the use of concrete water-reducing agents include: increased slump, increased bleeding, and prolonged concrete hardening time. These problems may be related to factors such as the type, dosage, and compatibility with concrete of the water-reducing agent.

Q5

How to solve the problems in using concrete water reducing agent?

Answer: Solving problems in the use of concrete water-reducing agents requires taking corresponding measures based on specific circumstances. For example, to address the problem of increased slump, the amount of water-reducing agent can be appropriately reduced or the amount of cement to be increased; to address the issue of increased bleeding, the mix ratio can be adjusted or an appropriate amount of defoaming agent can be added.

Q6

What is the development trend of concrete water-reducing admixtures?

Answer: The future development trend of concrete water-reducing agents is environmental protection, high efficiency and compounding. With the improvement of environmental awareness, the development of environmentally friendly water reducing agents has become an inevitable trend in the development of the industry. At the same time, high efficiency is also an important direction for the development of water reducing agents, which can more effectively improve the performance of concrete. In addition, with the diversification of engineering needs, compound water-reducing agents will have greater application prospects.