Description
Zt-3 Compound Freeze-resisting agent is a new type of chloride-free . Freeze-resisting agent , comprised of nitrites , nitrates, sulphates, etc . It allows the existence of fluid phase of water in the concrete at a specific negative temperature , so that hydration of cement can continue ; and the combined physical and chemical actions produced by all components of the agent can prevent the concrete from early freeze , and the expected strength can be attained within the set duration.
Application
1. This product can be used for prefabrication, cast-in-situ. reinforced concrete members and structu res; as welI as prestressed concrete structures .
2. It is suitable for concrete constructions being done at temperature not below -15 ℃ . and it can also be used as early strength agent for concrete construction at normal temperatures .
3. This product cannot be used for reinforced concrete structures in the environment of electrified transport facilities and d.c. mains; it can neither be used for the concrete in contact with zinc or aluminum-plated iron pieces .
4. It cannot be used for the concrete work , where foods a re likely to come into contact.
Features
1. ZT-3 is a new generation of high efficient anti-freezing agent.Small admixture, completely water soluble, low alkali, apparent reducing effect on the alkali-aggregate reaction.It can improve the workability, pumping properties and early strength of the concrete.
2. ZT-3 could reach up to 4MPa(-15 degree C) six hours after grouting.
3. Increase strength persistently-Grouting concrete could reach standard strength under normal temperature.
4. Self-leveling and vibration-free-The mortar could flow automatically so that no vibration is required, which ensure all gaps be grouted in the process of grouting.
|
Item |
Type 1 |
Type 2 |
Type 3 | |
|
Addition Rate |
2.0% |
3.0% |
4.0% | |
|
Lowest Daily Temperature |
-5 degree C |
-10 degree C |
-15 degree C | |
|
Compressive Strength (Mpa) |
1 day |
8 |
2 |
1 |
|
3 days |
25 |
20 |
10 | |
|
7 days |
40 |
30 |
15 | |
|
28 days |
60 |
50 |
40 | |
|
Vertical Expansion |
0.1 - 3% | |||
|
Fluidity |
>=240 mm | |||
|
Grouting Height |
<=200 mm | |||
|
Water Required |
12 - 14% | |||
|
Material Required |
2200 kg /m 3 | |||
Package & Storage
1. The product is available in polywoven bag with plastic liens at 40kg (20 small plastic bag at 2kg).
2. In transportation and moving, it should be handled carefully, not damage the bag. During storage, avoid moisture. If there is block because of moisture, grind and screen at 0.63mm before use it.
3. It valids for 3 years.