| Customization: | Available |
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| Appearance: | Water |
| Type: | water-reducing admixture |
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Huaxuan High-tech® KH-207 can greatly improve the plasticity index of newly mixed concrete, thereby improving the pumpability and constructability of concrete, and also significantly improve the strength growth of hardened concrete. Through the technological improvement of release point and release period, the concrete has excellent slump retention and significantly inhibits the slump loss of concrete. KH-207 has a wide range of adaptability, strong adaptability to various raw materials of concrete, and can improve the sensitivity of the content brought by the mud content of sand and aggregate, and meet the needs of various concrete slump preservation under the conditions of medium and low slump, long-term transportation of high-flow concrete and high temperature construction. KH-207 complies with The ASTM C 494 Norm ASTM C 494, Type D |
| Huaxuan High-tech® KH-207 Main Specifications | ||||
| NO | Test Item | Criterion | Detection result | |
| 1 | Appearance and color | Colorless or light yellow liquid | Colorless or light yellow liquid | |
| 2 | Water reduction rate /% | ≥25 | 29 | |
| 3 | Solid content (%) | 30~50±1.0 | 40~50±1.0 | |
| 4 | Slurry fluidity (mm) | ≥220 | 240 | |
| 5 | Compressive strength ratio (%) | 1d | / | / |
| 3d | / | / | ||
| 7d | ≥140 | 147 | ||
| 28d | ≥130 | 140 | ||
| 6 | air content /% | ≤6.0 | 2.2 | |
| 7 | pH value (20ºC) | 6~8 | 7.0 | |
| 8 | Density/(g/cm3) | 1.06~1.15 | 1.10 | |
| 9 | Reinforcement corrosion | The presence of corrosion hazards should be indicated | No | |
| 10 | validity | / | 6 months | |
| 11 | package | / | IBC barrel, 1000kg/ barrel | |
| 12 | storage | / | Store in a dry and ventilated place, away from direct sunlight | |
1. Widely used in concrete with high slump retention requirements, such as pre-mixing cast-in-place concrete in various civil buildings and commercial concrete mixing stations;
2. It can also be used in large-scale concrete, long-distance concrete transportation and pumping concrete, especially suitable for long-term transportation and high temperature construction conditions to maintain the slump of concrete;
3. Can be widely used in high-speed railways, nuclear power, water conservancy and hydropower projects, subways, large Bridges, expressways, port and other national key projects;
What problems does the KH-207 help solve?
Huaxuan High-tech® KH-207 can solve the problem of the long distance and long time transportation,the slump loss is too fast before the concrete arrives at the construction site. And concrete in the long time pumping process slump produces rapid loss, resulting in the failure to discharge, pump pressure is too high and even the harm of the pump, resulting in waste of raw materials, affect the quality of concrete, affect the construction period and other problems. Huaxuan KH-207 can help solve such problems by ensuring that the concrete still has a certain slump to meet the needs of on-site pumping construction after a long period of transportation.
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1. Low dosage and wide adaptability · It is recommended to use with KH-207 polycarboxylic acid superplasticizer; · Wide adaptability to Portland cement, ordinary Portland cement, slag silicate, fly ash cement, pozzolanic cement and various admixtures; · Adapt to mechanical sand problems such as high mud and powder content, which can alleviate the influence of flocculants to a certain extent; |
| 2. Excellent slump retention · Can meet the needs of more than 3 hours or even longer; · Significantly extend the construction operable time and effectively solve the problem of fast loss of concrete slump; · Taking into account the water reduction rate, with a certain initial water reduction rate, aiming to improve the adaptability of the finished water reducer; |
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| 3. High durability and good workability · Enhance the compactness of the hardened slurry, improve shrinkage and creep properties, reduce cracks and improve durability; · Fresh concrete has good workability, excellent fluidity and hardening performance, easy to pour and easy to construct; · No segregation and no bleeding, which is beneficial to the growth of concrete strength and structural development; |
1.KH207 can be measured and added to the concrete along with the water directly; it can also be diluted to a lower solid content, and then add to the concrete in corresponding dosage.
2.The recommended dosage is 0.4-1.0% of the cementitious material. The exact dosage should be determined after trial mixing, based on concrete design requirements and actual raw material conditions.
3.It should be used with KH-204 water reducing polycarboxylic acid superplasticizer;
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