Strong concept of time, the product is a special "fresh goods", can not be stored for a long time, since the beginning of stirring to the initial coagulation before must be poured and tamped.

In the construction process, generally need to use a large number of concrete, concrete types have many kinds, such as: ready-mixed concrete, commercial concrete...

In the future, the cement and concrete industry will capture carbon dioxide emitted into the air through a variety of carbon capture and utilization technologies in production, use, recycling and upgrading, so as to fully realize the closed cycle of carbon dioxide.

Concrete durability is concrete resistance to environmental media, long-term maintenance of good performance and appearance integrity, so as to maintain the safety of concrete structure, normal use of the ability.

Although the products produced by anti-crack mortar manufacturers are called anti-crack mortar, they often fail to achieve the effect of anti-crack when they are used. What is the reason for this?

I believe that many people know that reinforcement is needed in the construction of commercial permeable concrete, so do you know the advantages of reinforcement? Why do commercial pervious concrete use a reinforcing agent?

Pervious concrete is an eco-friendly concrete with continuous pores, good air permeability and water permeability. Pavement can supplement groundwater, alleviate urban waterlogging, absorb sound and reduce noise, improve urban thermal environment, and have good environmental and social benefits.

According to (GB8075-87) classification, concrete admixture according to its main function can be divided into four categories:
1, improve concrete mixing logistics variable performance admixture: including all kinds of water reduction liu, air entraining agent and pumping agent.

Concrete is to rely on cement cementation, gradually hardening, and improve the compressive strength. Because the knot of cement is not complete at a stroke, but with the increase of time and gradually perfect.

To ask why concrete should be divided into strength grades, we should first know what is concrete strength grade. Concrete strength grade is artificially divided according to the concrete cube compressive strength value, it is the characteristic strength of concrete.

Concrete raw materials are mixed with water to form concrete mixture, which has a certain fluidity, cohesion and plasticity. With the passage of time, the hydration reaction of the cementitious material continues, and the hydration products continue to increase, forming a condensed structure.