Contents of this article
How to use Sihai Huinong antifreeze?
How to use antifreeze?
Should the snow melting agent be spread before or after snow?
How to use Ts-15 antifreeze?
Instructions for use of early strength antifreeze?
At what temperature is the concrete antifreeze effective?
What are the requirements for concrete antifreeze for highway bridges?
How to use Sihai Huinong antifreeze?
The usage method is as follows: For construction at 0~ -5℃, 4~6% can be added. For construction at -5~ -10℃, 5~8% can be added at -10~ -15℃ Under construction conditions, 8~10% concrete antifreeze can be added. Early strength antifreeze uses special antifreeze materials, which can effectively reduce the freezing point of concrete and mortar and greatly improve the antifreeze performance of concrete and mortar at negative temperatures.
And it can increase the early strength of concrete and mortar by more than 80% without reducing the later strength, thereby ensuring that the strength is equally developed under positive and negative temperature conditions. The effect is remarkable.
How to use antifreeze?
The usage method is as follows: For construction at 0~ -5℃, 4~6% can be added. For construction at -5~ -10℃, 5~8% can be added at -10~ -15℃ Under construction conditions, 8~10% concrete antifreeze can be added. Early strength antifreeze uses special antifreeze materials, which can effectively reduce the freezing point of concrete and mortar and greatly improve the antifreeze performance of concrete and mortar at negative temperatures.
And it can increase the early strength of concrete and mortar by more than 80% without reducing the later strength, thereby ensuring that the strength is equally developed under positive and negative temperature conditions. The effect is remarkable.
Should the snow melting agent be spread before or after snow?
Before snow
It is better to spray a certain amount of environmental snow melting agent before snow. Spraying one to two hours before the road freezes can effectively prevent the road from freezing. Some snow melting agents can cause damage to the car chassis. It is recommended to wash the car chassis as soon as possible after driving in snowy weather to prevent some snow melting agents from corroding the car chassis. Snow melting agents are mainly divided into dry spraying and spraying types. Snow melting agents can be sprayed manually or with equipment. The amount of spraying can be adjusted flexibly according to different conditions, such as snowfall rate, snowfall amount, ice layer thickness, etc. .
How to use Ts-15 antifreeze?
1. Clean the engine cooling system before adding antifreeze
2. Check the antifreeze regularly during use. The validity period of antifreeze is generally about 2 years. When adding, you should confirm that the antifreeze is within the validity period. At the same time, check the color, texture, etc. of the antifreeze. If you find that the antifreeze has deteriorated, smelled, become turbid, etc., you should replace it in time.
3. General antifreeze cannot be mixed with water. This will cause precipitation and seriously affect the normal function of the antifreeze. Try to use antifreeze of the same brand.
4. Do not add concentrated antifreeze directly. Adding concentrated antifreeze directly will not only fail to meet the freezing point requirements of antifreeze, but will also cause deterioration of the antifreeze, increase in viscosity, and increase in engine temperature. Therefore, when using concentrated antifreeze, it must be prepared as required.
Early strength antifreeze instruction manual?
It has obvious early strength, air entrainment and anti-freeze effects. It can be used in concrete construction with the lowest daily temperature of 0℃~-20℃, and has no rust effect on steel bars.
Scope of application:
Poured-in-place or precast concrete for various industrial and civil buildings, various steel bars and prestressed reinforced concrete for highways, airports, tunnels, bridges, etc.
Technical indicators of early-strength antifreeze:
The project standard stipulates the technical indicators of first-class early-strength antifreeze
Water reduction rate (%) ≥ 810
p>Air content (%) ≥ 2.53.0
Bleeding rate ratio (%) ≤ 10035
Compressive strength ratio (%) specified temperature ℃-5 -10-15-5-10-15
R-7d201210251612
R28d959590110110110
R-7+28d95908510810095
R-7 +56d100115110105
Setting time difference (min) Initial setting-120~+120+30
Final setting-120~+120+45
Impermeability height ratio (%)≤10070
Alkali content (kg/m3)≤10.65
90d shrinkage ratio (%)≤120105
50 freeze-thaw strength loss Rate ratio (%) ≤ 10055
The corrosion effect on steel bars should indicate that there is no rust or corrosion on steel bars
Homogeneous performance:
Appearance: light gray powder; Moisture content: ≤3%; Fineness: 0.315 sieve all passed; cement slurry fluidity ≥150mm
What is the effective temperature range of concrete antifreeze?
Concrete antifreeze is effective within -15 degrees.
When the temperature is between 0 and -5 degrees, 4% to 6% antifreeze needs to be added. When the temperature is -5 to -10 degrees, 5% to 8% antifreeze needs to be added. When the temperature is -10 to -15 degrees, 8% to 10% antifreeze needs to be added. During the construction process of concrete, the lower the temperature, the more antifreeze needs to be used to ensure that the strength of the concrete can reach sufficient strength. In addition, the selected antifreeze needs to have an appraisal report from the relevant department and a product certificate to ensure that you buy a qualified product.
What are the requirements for concrete antifreeze for highway bridges?
The usage method of concrete antifreeze for highway bridges is as follows: When constructing at 0~-5℃, 4~6% can be added. When constructing at -5~-10℃, 5~8% can be added. When constructing at -10~-15℃, 8~10% concrete antifreeze can be added. Early-strength antifreeze uses special antifreeze materials, which can effectively reduce the freezing point of concrete and mortar, and greatly improve the load capacity of concrete and mortar.Anti-freeze performance under high temperature.
And it can increase the early strength of concrete and mortar by more than 80% without reducing the later strength, thereby ensuring that the strength is equally developed under positive and negative temperature conditions. The effect is remarkable. </p
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