Henan Xijian New Building Materials Co., Ltd
Polycarboxylate High-Performance Water Reducer
Polycarboxylate superplasticizer is a high-performance water-reducing admixture and a cement dispersant used in cement concrete applications. It is widely employed in projects such as highways, bridges, dams, tunnels, and high-rise buildings. This product is non-flammable and non-explosive, and can be transported by rail and road.
Category:
Municipal products
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Introduction
Product Overview
Polycarboxylate superplasticizer is a high-performance water-reducing admixture and a cement dispersant used in cement concrete applications. It is widely employed in projects such as highways, bridges, dams, tunnels, and high-rise buildings. This product is non-flammable and non-explosive, and can be transported by rail and road.
Product Specifications
| Test Items |
Inspection Requirements |
Test Results |
|
| Water-reducing rate / %, |
≥25 |
27.5 |
|
| Bleeding ratio /%, |
≤60 |
27.3 |
|
| Air content / % |
≤6.0 |
2.3 |
|
| Difference in setting time/min |
Initial setting |
-90 to +120 |
65 |
| Final setting |
60 |
||
| 1-hour temporal change |
Slump/㎜ |
≤80 |
70 |
| Air content / % |
- |
- |
|
| Compressive Strength Ratio / % |
1d |
≥170 |
178 |
| 3d |
≥160 |
170 |
|
| 7d |
≥150 |
162 |
|
| 28d |
≥140 |
151 |
|
| Shrinkage Ratio / % |
28d |
≤110 |
98 |
| Chloride ion content / % |
≤0.6 |
0.05 |
|
| Alkali content / % |
≤10 |
2.6 |
|
| pH value |
4 to 9 |
5.4 |
|
| Implementation Standard |
Complies with GB 8076-2008 Concrete Admixtures |
Compliant with |
|
|
|
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| GB/T 8077-2012 Test Methods for Homogeneity of Concrete Admixtures |
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| GB 50119–2011 Technical Specification for the Application of Concrete Admixtures |
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Product Advantages
1. Exhibits excellent compatibility with various types of cement, ensuring good slump retention and extending the concrete’s workability window.
2. Low dosage, high water-reducing efficiency, and minimal shrinkage.
3. Significantly enhance the early- and late-age strength of concrete.
4. This product has low chloride ion content and low alkali content, which enhances the durability of concrete.
5. This product is formaldehyde-free, complies with the ISO 14000 environmental management standard, and is a green product.
6. The use of polycarboxylate superplasticizers allows for greater substitution of cement with slag or fly ash, thereby reducing costs.
Scope of Application
Prefabricated and cast-in-place concrete, reinforced concrete, and prestressed concrete suitable for the construction of high-speed railways, passenger-dedicated lines, industrial and civil buildings, roads, bridges, port terminals, airports, and other infrastructure projects.
It is particularly suitable for concrete placement projects with long construction durations that have stringent requirements for maintaining concrete slump, such as nuclear power projects.
How to use
1. Use at a dosage of 1.0% to 1.3% of the concrete cementitious materials;
2. Prior to use, compatibility testing with concrete raw materials must be conducted to determine the appropriate dosage.
3. When other raw materials change, the concrete mix proportions shall be promptly adjusted through testing.
4. When temperature fluctuations are significant, the dosage of admixtures should be adjusted accordingly at all times.
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