More than 50% concrete friends must know the definition of concrete segregation and bleeding. Shanxi anti-segregation agent manufacturer Hebei concrete segregation agent
1. Definition of concrete segregation: Concrete segregation is the separation between the components of the concrete mixture. The cohesion is insufficient to resist the sinking of coarse aggregate, ca…
Comprehensive explanation of concrete segregation Heilongjiang anti-segregation agent manufacturer Liaoning concrete anti-segregation agent
Concrete bleeding and segregation often occur in concrete projects, causing serious impact on the strength, durability and construction quality of concrete. Bleeding refers to the phenomenon of concre…
What is the purpose of adding retarder and water reducing agent to pumped concrete?
1. Retarder: Pumped concrete mostly uses commercial concrete, which requires small slump loss. Especially for large-volume concrete or concrete constructed at high temperatures in summer, retarder mus…
What is the main impact of retarder on the performance of concrete?
1. Retarder is a common water-reducing agent used to increase the initial setting time of concrete. At the construction site in summer, proper addition of retarder can make the new Mixed soil maintain…
How long is the final initial setting time of concrete after adding a retardant?
Generally, the temperature of commercial concrete here is about 18-24 degrees. I usually control the initial setting to 10 hours and the final setting to 12 hours under the conditions of 20 degrees in…
The seemingly simple mechanism of action of concrete water-reducing agent
Polycarboxylate performance model water-reducing agent is a new type of water-reducing agent that has many outstanding advantages, but its functional principle is not completely clear at this stage. T…
What is the working principle of concrete water reducing agent?
Polycarboxylic acid-based inorganic materials are currently attracting widespread attention. They are mainly used in industries such as concrete water-reducing agents, cleaning preservatives, industri…
The effect of auxiliary raw materials on the adaptability of admixtures
Fundamental reasons: ① After on-site experiments, the key factor affecting the properties of polycarboxylate superplasticizer concrete in the stone is the mud content of the stone. As the mud content …
The difference between the use of retarder and other admixtures
(1) Characteristics Retarder and retarding superplasticizer have different retarding effects on the slurry and concrete surface. The retardation effect increases with the increase in dosage. Over-admi…
Dependence of water reducing effect on water reducing agent dosage
The water-reducing effect is highly dependent on the amount of water-reducing agent The admixture used is composed of concrete, slaked lime and fly ash powder, and the total admixture output is 477kg/…
